bms_master - combine lib to one

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combine lib to one

bms_master.h@3:2561f59cd3dd, 2018-01-17 (annotated)

Committer:: roger5641
Date:: Wed Jan 17 08:27:39 2018 +0000
Revision:: 3:2561f59cd3dd
Parent:: 2:9f8d97b7fb58

check open wire test; 20 command some problems

Who changed what in which revision?

User	Revision	Line number	New contents of line
roger5641	0:b2692e0e4219	1
roger5641	0:b2692e0e4219	2	#ifndef bms_master_H
roger5641	0:b2692e0e4219	3	#define bms_master_H
roger5641	0:b2692e0e4219	4
roger5641	0:b2692e0e4219	5	#include "mbed.h"
roger5641	0:b2692e0e4219	6
roger5641	0:b2692e0e4219	7	#define IC_LTC6811
roger5641	0:b2692e0e4219	8
roger5641	0:b2692e0e4219	9	#define MD_422HZ_1KHZ 0
roger5641	0:b2692e0e4219	10	#define MD_27KHZ_14KHZ 1
roger5641	0:b2692e0e4219	11	#define MD_7KHZ_3KHZ 2
roger5641	0:b2692e0e4219	12	#define MD_26HZ_2KHZ 3
roger5641	0:b2692e0e4219	13
roger5641	0:b2692e0e4219	14	#define ADC_OPT_ENABLED 1
roger5641	0:b2692e0e4219	15	#define ADC_OPT_DISABLED 0
roger5641	0:b2692e0e4219	16
roger5641	0:b2692e0e4219	17	#define CELL_CH_ALL 0
roger5641	0:b2692e0e4219	18	#define CELL_CH_1and7 1
roger5641	0:b2692e0e4219	19	#define CELL_CH_2and8 2
roger5641	0:b2692e0e4219	20	#define CELL_CH_3and9 3
roger5641	0:b2692e0e4219	21	#define CELL_CH_4and10 4
roger5641	0:b2692e0e4219	22	#define CELL_CH_5and11 5
roger5641	0:b2692e0e4219	23	#define CELL_CH_6and12 6
roger5641	0:b2692e0e4219	24
roger5641	0:b2692e0e4219	25	#define SELFTEST_1 1
roger5641	0:b2692e0e4219	26	#define SELFTEST_2 2
roger5641	0:b2692e0e4219	27
roger5641	0:b2692e0e4219	28	#define AUX_CH_ALL 0
roger5641	0:b2692e0e4219	29	#define AUX_CH_GPIO1 1
roger5641	0:b2692e0e4219	30	#define AUX_CH_GPIO2 2
roger5641	0:b2692e0e4219	31	#define AUX_CH_GPIO3 3
roger5641	0:b2692e0e4219	32	#define AUX_CH_GPIO4 4
roger5641	0:b2692e0e4219	33	#define AUX_CH_GPIO5 5
roger5641	0:b2692e0e4219	34	#define AUX_CH_VREF2 6
roger5641	0:b2692e0e4219	35
roger5641	0:b2692e0e4219	36	#define STAT_CH_ALL 0
roger5641	0:b2692e0e4219	37	#define STAT_CH_SOC 1
roger5641	0:b2692e0e4219	38	#define STAT_CH_ITEMP 2
roger5641	0:b2692e0e4219	39	#define STAT_CH_VREGA 3
roger5641	0:b2692e0e4219	40	#define STAT_CH_VREGD 4
roger5641	0:b2692e0e4219	41
roger5641	0:b2692e0e4219	42	#define DCP_DISABLED 0
roger5641	0:b2692e0e4219	43	#define DCP_ENABLED 1
roger5641	0:b2692e0e4219	44
roger5641	0:b2692e0e4219	45	#define PULL_UP_CURRENT 1
roger5641	0:b2692e0e4219	46	#define PULL_DOWN_CURRENT 0
roger5641	0:b2692e0e4219	47
roger5641	0:b2692e0e4219	48	#define NUM_RX_BYT 8
roger5641	0:b2692e0e4219	49	#define CELL 1
roger5641	0:b2692e0e4219	50	#define AUX 2
roger5641	0:b2692e0e4219	51	#define STAT 3
roger5641	0:b2692e0e4219	52	#define CFGR 0
roger5641	0:b2692e0e4219	53	#define CFGRB 4
roger5641	0:b2692e0e4219	54	DigitalOut CS_PIN(A3); //chip select
roger5641	0:b2692e0e4219	55
roger5641	2:9f8d97b7fb58	56	SPI spi(A6,A5,A4);
roger5641	0:b2692e0e4219	57	Serial pc(USBTX,USBRX);
roger5641	0:b2692e0e4219	58
roger5641	0:b2692e0e4219	59	#define UI_BUFFER_SIZE 64
roger5641	0:b2692e0e4219	60
roger5641	0:b2692e0e4219	61	//! Cell Voltage data structure.
roger5641	0:b2692e0e4219	62	typedef struct
roger5641	0:b2692e0e4219	63	{
roger5641	0:b2692e0e4219	64	uint16_t c_codes[18];//!< Cell Voltage Codes
roger5641	0:b2692e0e4219	65	uint8_t pec_match[6];//!< If a PEC error was detected during most recent read cmd
roger5641	0:b2692e0e4219	66	} cv;
roger5641	0:b2692e0e4219	67
roger5641	0:b2692e0e4219	68	//! AUX Reg Voltage Data
roger5641	0:b2692e0e4219	69	typedef struct
roger5641	0:b2692e0e4219	70	{
roger5641	0:b2692e0e4219	71	uint16_t a_codes[9];//!< Aux Voltage Codes
roger5641	0:b2692e0e4219	72	uint8_t pec_match[4];//!< If a PEC error was detected during most recent read cmd
roger5641	0:b2692e0e4219	73	} ax;
roger5641	0:b2692e0e4219	74
roger5641	0:b2692e0e4219	75	typedef struct
roger5641	0:b2692e0e4219	76	{
roger5641	0:b2692e0e4219	77	uint16_t stat_codes[4];//!< A two dimensional array of the stat voltage codes.
roger5641	0:b2692e0e4219	78	uint8_t flags[3]; //!< byte array that contains the uv/ov flag data
roger5641	0:b2692e0e4219	79	uint8_t mux_fail[1]; //!< Mux self test status flag
roger5641	0:b2692e0e4219	80	uint8_t thsd[1]; //!< Thermal shutdown status
roger5641	0:b2692e0e4219	81	uint8_t pec_match[2];//!< If a PEC error was detected during most recent read cmd
roger5641	0:b2692e0e4219	82	} st;
roger5641	0:b2692e0e4219	83
roger5641	0:b2692e0e4219	84	typedef struct
roger5641	0:b2692e0e4219	85	{
roger5641	0:b2692e0e4219	86	uint8_t tx_data[6];
roger5641	0:b2692e0e4219	87	uint8_t rx_data[8];
roger5641	0:b2692e0e4219	88	uint8_t rx_pec_match;//!< If a PEC error was detected during most recent read cmd
roger5641	0:b2692e0e4219	89	} ic_register;
roger5641	0:b2692e0e4219	90
roger5641	0:b2692e0e4219	91	typedef struct
roger5641	0:b2692e0e4219	92	{
roger5641	0:b2692e0e4219	93	uint16_t pec_count;
roger5641	0:b2692e0e4219	94	uint16_t cfgr_pec;
roger5641	0:b2692e0e4219	95	uint16_t cell_pec[6];
roger5641	0:b2692e0e4219	96	uint16_t aux_pec[4];
roger5641	0:b2692e0e4219	97	uint16_t stat_pec[2];
roger5641	0:b2692e0e4219	98	} pec_counter;
roger5641	0:b2692e0e4219	99
roger5641	0:b2692e0e4219	100	typedef struct
roger5641	0:b2692e0e4219	101	{
roger5641	0:b2692e0e4219	102	uint8_t cell_channels;
roger5641	0:b2692e0e4219	103	uint8_t stat_channels;
roger5641	0:b2692e0e4219	104	uint8_t aux_channels;
roger5641	0:b2692e0e4219	105	uint8_t num_cv_reg;
roger5641	0:b2692e0e4219	106	uint8_t num_gpio_reg;
roger5641	0:b2692e0e4219	107	uint8_t num_stat_reg;
roger5641	0:b2692e0e4219	108	} register_cfg;
roger5641	0:b2692e0e4219	109
roger5641	0:b2692e0e4219	110	typedef struct
roger5641	0:b2692e0e4219	111	{
roger5641	0:b2692e0e4219	112	ic_register config;
roger5641	0:b2692e0e4219	113	ic_register configb;
roger5641	0:b2692e0e4219	114	cv cells;
roger5641	0:b2692e0e4219	115	ax aux;
roger5641	0:b2692e0e4219	116	st stat;
roger5641	0:b2692e0e4219	117	ic_register com;
roger5641	0:b2692e0e4219	118	ic_register pwm;
roger5641	0:b2692e0e4219	119	ic_register pwmb;
roger5641	0:b2692e0e4219	120	ic_register sctrl;
roger5641	0:b2692e0e4219	121	ic_register sctrlb;
roger5641	0:b2692e0e4219	122	bool isospi_reverse;
roger5641	0:b2692e0e4219	123	pec_counter crc_count;
roger5641	0:b2692e0e4219	124	register_cfg ic_reg;
roger5641	0:b2692e0e4219	125	long system_open_wire;
roger5641	0:b2692e0e4219	126	} cell_asic;
roger5641	0:b2692e0e4219	127
roger5641	0:b2692e0e4219	128
roger5641	0:b2692e0e4219	129
roger5641	0:b2692e0e4219	130
roger5641	0:b2692e0e4219	131	/*! calculates and returns the CRC15
roger5641	0:b2692e0e4219	132	@returns The calculated pec15 as an unsigned int
roger5641	0:b2692e0e4219	133	*/
roger5641	0:b2692e0e4219	134	uint16_t pec15_calc(uint8_t len, //!< the length of the data array being passed to the function
roger5641	0:b2692e0e4219	135	uint8_t *data //!< the array of data that the PEC will be generated from
roger5641	0:b2692e0e4219	136	);
roger5641	0:b2692e0e4219	137
roger5641	0:b2692e0e4219	138	/! Wake isoSPI up from idle state /
roger5641	0:b2692e0e4219	139	void wakeup_idle(uint8_t total_ic);//!< number of ICs in the daisy chain
roger5641	0:b2692e0e4219	140
roger5641	0:b2692e0e4219	141	/! Wake the LTC6813 from the sleep state /
roger5641	0:b2692e0e4219	142	void wakeup_sleep(uint8_t total_ic); //!< number of ICs in the daisy chain
roger5641	0:b2692e0e4219	143
roger5641	0:b2692e0e4219	144	/! Sense a command to the bms IC. This code will calculate the PEC code for the transmitted command/
roger5641	0:b2692e0e4219	145	void cmd_68(uint8_t tx_cmd[2]); //!< 2 Byte array containing the BMS command to be sent
roger5641	0:b2692e0e4219	146
roger5641	0:b2692e0e4219	147	//! Writes an array of data to the daisy chain
roger5641	0:b2692e0e4219	148	void write_68(uint8_t total_ic , //!< number of ICs in the daisy chain
roger5641	0:b2692e0e4219	149	uint8_t tx_cmd[2], //!< 2 Byte array containing the BMS command to be sent
roger5641	0:b2692e0e4219	150	uint8_t data[] //!< Array containing the data to be written to the BMS ICs
roger5641	0:b2692e0e4219	151	);
roger5641	0:b2692e0e4219	152	//! Issues a command onto the daisy chain and reads back 6*total_ic data in the rx_data array
roger5641	0:b2692e0e4219	153	int8_t read_68( uint8_t total_ic, //!< number of ICs in the daisy chain
roger5641	0:b2692e0e4219	154	uint8_t tx_cmd[2], //!< 2 Byte array containing the BMS command to be sent
roger5641	0:b2692e0e4219	155	uint8_t *rx_data); //!< Array that the read back data will be stored.
roger5641	0:b2692e0e4219	156
roger5641	0:b2692e0e4219	157	/*! Starts the Mux Decoder diagnostic self test
roger5641	0:b2692e0e4219	158
roger5641	0:b2692e0e4219	159	Running this command will start the Mux Decoder Diagnostic Self Test
roger5641	0:b2692e0e4219	160	This test takes roughly 1mS to complete. The MUXFAIL bit will be updated,
roger5641	0:b2692e0e4219	161	the bit will be set to 1 for a failure and 0 if the test has been passed.
roger5641	0:b2692e0e4219	162	*/
roger5641	0:b2692e0e4219	163	void LTC681x_diagn();
roger5641	0:b2692e0e4219	164
roger5641	0:b2692e0e4219	165	//! Sends the poll adc command
roger5641	0:b2692e0e4219	166	//! @returns 1 byte read back after a pladc command. If the byte is not 0xFF ADC conversion has completed
roger5641	0:b2692e0e4219	167	uint8_t LTC681x_pladc();
roger5641	0:b2692e0e4219	168
roger5641	0:b2692e0e4219	169	//! This function will block operation until the ADC has finished it's conversion
roger5641	0:b2692e0e4219	170	//! @returns the approximate time it took for the ADC function to complete.
roger5641	0:b2692e0e4219	171	uint32_t LTC681x_pollAdc();
roger5641	0:b2692e0e4219	172
roger5641	0:b2692e0e4219	173	/*! Starts cell voltage conversion
roger5641	0:b2692e0e4219	174
roger5641	0:b2692e0e4219	175	Starts ADC conversions of the LTC6811 Cpin inputs.
roger5641	0:b2692e0e4219	176	The type of ADC conversion executed can be changed by setting the following parameters:
roger5641	0:b2692e0e4219	177	*/
roger5641	0:b2692e0e4219	178	void LTC681x_adcv(uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	179	uint8_t DCP, //!< Controls if Discharge is permitted during conversion
roger5641	0:b2692e0e4219	180	uint8_t CH //!< Sets which Cell channels are converted
roger5641	0:b2692e0e4219	181	);
roger5641	0:b2692e0e4219	182
roger5641	0:b2692e0e4219	183	/*! Starts cell voltage and GPIO 1&2 conversion
roger5641	0:b2692e0e4219	184	*/
roger5641	0:b2692e0e4219	185	void LTC681x_adcvax(
roger5641	0:b2692e0e4219	186	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	187	uint8_t DCP //!< Controls if Discharge is permitted during conversion
roger5641	0:b2692e0e4219	188	);
roger5641	0:b2692e0e4219	189
roger5641	0:b2692e0e4219	190
roger5641	0:b2692e0e4219	191	/*! Starts cell voltage self test conversion
roger5641	0:b2692e0e4219	192	*/
roger5641	0:b2692e0e4219	193	void LTC681x_cvst(
roger5641	0:b2692e0e4219	194	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	195	uint8_t ST //!< Self Test Mode
roger5641	0:b2692e0e4219	196	);
roger5641	0:b2692e0e4219	197
roger5641	0:b2692e0e4219	198	/*! Starts cell voltage and SOC conversion
roger5641	0:b2692e0e4219	199	*/
roger5641	0:b2692e0e4219	200	void LTC681x_adcvsc(
roger5641	0:b2692e0e4219	201	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	202	uint8_t DCP //!< Controls if Discharge is permitted during conversion
roger5641	0:b2692e0e4219	203	);
roger5641	0:b2692e0e4219	204	/*! Starts cell voltage overlap conversion
roger5641	0:b2692e0e4219	205	*/
roger5641	0:b2692e0e4219	206	void LTC681x_adol(
roger5641	0:b2692e0e4219	207	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	208	uint8_t DCP //!< Discharge permitted during conversion
roger5641	0:b2692e0e4219	209	);
roger5641	0:b2692e0e4219	210
roger5641	0:b2692e0e4219	211	/*! Start an open wire Conversion
roger5641	0:b2692e0e4219	212	*/
roger5641	0:b2692e0e4219	213	void LTC681x_adow(
roger5641	0:b2692e0e4219	214	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	215	uint8_t PUP //!< Controls if Discharge is permitted during conversion
roger5641	0:b2692e0e4219	216	);
roger5641	0:b2692e0e4219	217
roger5641	0:b2692e0e4219	218
roger5641	0:b2692e0e4219	219	/*! Start a GPIO and Vref2 Conversion
roger5641	0:b2692e0e4219	220	*/
roger5641	0:b2692e0e4219	221	void LTC681x_adax(
roger5641	0:b2692e0e4219	222	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	223	uint8_t CHG //!< Sets which GPIO channels are converted
roger5641	0:b2692e0e4219	224	);
roger5641	0:b2692e0e4219	225
roger5641	0:b2692e0e4219	226	/*! Start an GPIO Redundancy test
roger5641	0:b2692e0e4219	227	*/
roger5641	0:b2692e0e4219	228	void LTC681x_adaxd(
roger5641	0:b2692e0e4219	229	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	230	uint8_t CHG //!< Sets which GPIO channels are converted
roger5641	0:b2692e0e4219	231	);
roger5641	0:b2692e0e4219	232
roger5641	0:b2692e0e4219	233	/*! Start an Auxiliary Register Self Test Conversion
roger5641	0:b2692e0e4219	234	*/
roger5641	0:b2692e0e4219	235	void LTC681x_axst(
roger5641	0:b2692e0e4219	236	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	237	uint8_t ST //!< Sets if self test 1 or 2 is run
roger5641	0:b2692e0e4219	238	);
roger5641	0:b2692e0e4219	239
roger5641	0:b2692e0e4219	240
roger5641	0:b2692e0e4219	241
roger5641	0:b2692e0e4219	242	/*! Start a Status ADC Conversion
roger5641	0:b2692e0e4219	243	*/
roger5641	0:b2692e0e4219	244	void LTC681x_adstat(
roger5641	0:b2692e0e4219	245	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	246	uint8_t CHST //!< Sets which Stat channels are converted
roger5641	0:b2692e0e4219	247	);
roger5641	0:b2692e0e4219	248
roger5641	0:b2692e0e4219	249	/*! Start a Status register redundancy test Conversion
roger5641	0:b2692e0e4219	250	*/
roger5641	0:b2692e0e4219	251	void LTC681x_adstatd(
roger5641	0:b2692e0e4219	252	uint8_t MD, //!< ADC Mode
roger5641	0:b2692e0e4219	253	uint8_t CHST //!< Sets which Status channels are converted
roger5641	0:b2692e0e4219	254	);
roger5641	0:b2692e0e4219	255
roger5641	0:b2692e0e4219	256
roger5641	0:b2692e0e4219	257	/*! Start a Status Register Self Test Conversion
roger5641	0:b2692e0e4219	258	*/
roger5641	0:b2692e0e4219	259	void LTC681x_statst(
roger5641	0:b2692e0e4219	260	uint8_t MD, //!< ADC Conversion Mode
roger5641	0:b2692e0e4219	261	uint8_t ST //!< Sets if self test 1 or 2 is run
roger5641	0:b2692e0e4219	262	);
roger5641	0:b2692e0e4219	263
roger5641	0:b2692e0e4219	264	void LTC681x_rdcv_reg(uint8_t reg, //!<Determines which cell voltage register is read back
roger5641	0:b2692e0e4219	265	uint8_t total_ic, //!<the number of ICs in the
roger5641	0:b2692e0e4219	266	uint8_t *data //!<An array of the unparsed cell codes
roger5641	0:b2692e0e4219	267	);
roger5641	0:b2692e0e4219	268	/*! helper function that parses voltage measurement registers
roger5641	0:b2692e0e4219	269	*/
roger5641	0:b2692e0e4219	270	int8_t parse_cells(uint8_t current_ic,
roger5641	0:b2692e0e4219	271	uint8_t cell_reg,
roger5641	0:b2692e0e4219	272	uint8_t cell_data[],
roger5641	0:b2692e0e4219	273	uint16_t *cell_codes,
roger5641	0:b2692e0e4219	274	uint8_t *ic_pec);
roger5641	0:b2692e0e4219	275
roger5641	0:b2692e0e4219	276	/*! Read the raw data from the LTC681x auxiliary register
roger5641	0:b2692e0e4219	277
roger5641	0:b2692e0e4219	278	The function reads a single GPIO voltage register and stores thre read data
roger5641	0:b2692e0e4219	279	in the *data point as a byte array. This function is rarely used outside of
roger5641	0:b2692e0e4219	280	the LTC681x_rdaux() command.
roger5641	0:b2692e0e4219	281	*/
roger5641	0:b2692e0e4219	282	void LTC681x_rdaux_reg( uint8_t reg, //Determines which GPIO voltage register is read back
roger5641	0:b2692e0e4219	283	uint8_t total_ic, //The number of ICs in the system
roger5641	0:b2692e0e4219	284	uint8_t *data //Array of the unparsed auxiliary codes
roger5641	0:b2692e0e4219	285	);
roger5641	0:b2692e0e4219	286	/*! Read the raw data from the LTC681x stat register
roger5641	0:b2692e0e4219	287
roger5641	0:b2692e0e4219	288	The function reads a single GPIO voltage register and stores thre read data
roger5641	0:b2692e0e4219	289	in the *data point as a byte array. This function is rarely used outside of
roger5641	0:b2692e0e4219	290	the LTC681x_rdstat() command.
roger5641	0:b2692e0e4219	291	*/
roger5641	0:b2692e0e4219	292	void LTC681x_rdstat_reg(uint8_t reg, //Determines which stat register is read back
roger5641	0:b2692e0e4219	293	uint8_t total_ic, //The number of ICs in the system
roger5641	0:b2692e0e4219	294	uint8_t *data //Array of the unparsed stat codes
roger5641	0:b2692e0e4219	295	);
roger5641	0:b2692e0e4219	296
roger5641	0:b2692e0e4219	297	/*! Clears the LTC681x cell voltage registers
roger5641	0:b2692e0e4219	298
roger5641	0:b2692e0e4219	299	The command clears the cell voltage registers and initializes
roger5641	0:b2692e0e4219	300	all values to 1. The register will read back hexadecimal 0xFF
roger5641	0:b2692e0e4219	301	after the command is sent.
roger5641	0:b2692e0e4219	302	*/
roger5641	0:b2692e0e4219	303	void LTC681x_clrcell();
roger5641	0:b2692e0e4219	304	/*! Clears the LTC681x Auxiliary registers
roger5641	0:b2692e0e4219	305
roger5641	0:b2692e0e4219	306	The command clears the Auxiliary registers and initializes
roger5641	0:b2692e0e4219	307	all values to 1. The register will read back hexadecimal 0xFF
roger5641	0:b2692e0e4219	308	after the command is sent.
roger5641	0:b2692e0e4219	309	*/
roger5641	0:b2692e0e4219	310	void LTC681x_clraux();
roger5641	0:b2692e0e4219	311
roger5641	0:b2692e0e4219	312	/*! Clears the LTC681x Stat registers
roger5641	0:b2692e0e4219	313
roger5641	0:b2692e0e4219	314	The command clears the Stat registers and initializes
roger5641	0:b2692e0e4219	315	all values to 1. The register will read back hexadecimal 0xFF
roger5641	0:b2692e0e4219	316	after the command is sent.
roger5641	0:b2692e0e4219	317	*/
roger5641	0:b2692e0e4219	318	void LTC681x_clrstat();
roger5641	0:b2692e0e4219	319
roger5641	0:b2692e0e4219	320	/*! Clears the LTC681x SCTRL registers
roger5641	0:b2692e0e4219	321
roger5641	0:b2692e0e4219	322	The command clears the SCTRL registers and initializes
roger5641	0:b2692e0e4219	323	all values to 0. The register will read back hexadecimal 0x00
roger5641	0:b2692e0e4219	324	after the command is sent.
roger5641	0:b2692e0e4219	325	*/
roger5641	0:b2692e0e4219	326	void LTC681x_clrsctrl();
roger5641	0:b2692e0e4219	327
roger5641	0:b2692e0e4219	328	/*! Starts the Mux Decoder diagnostic self test
roger5641	0:b2692e0e4219	329
roger5641	0:b2692e0e4219	330	Running this command will start the Mux Decoder Diagnostic Self Test
roger5641	0:b2692e0e4219	331	This test takes roughly 1mS to complete. The MUXFAIL bit will be updated,
roger5641	0:b2692e0e4219	332	the bit will be set to 1 for a failure and 0 if the test has been passed.
roger5641	0:b2692e0e4219	333	*/
roger5641	0:b2692e0e4219	334	void LTC681x_diagn();
roger5641	0:b2692e0e4219	335
roger5641	0:b2692e0e4219	336	/*! Reads and parses the LTC681x cell voltage registers.
roger5641	0:b2692e0e4219	337
roger5641	0:b2692e0e4219	338	The function is used to read the cell codes of the LTC6811.
roger5641	0:b2692e0e4219	339	This function will send the requested read commands parse the data
roger5641	0:b2692e0e4219	340	and store the cell voltages in the cell_asic structure.
roger5641	0:b2692e0e4219	341	*/
roger5641	0:b2692e0e4219	342	uint8_t LTC681x_rdcv(uint8_t reg, // Controls which cell voltage register is read back.
roger5641	0:b2692e0e4219	343	uint8_t total_ic, // the number of ICs in the system
roger5641	0:b2692e0e4219	344	cell_asic ic[] // Array of the parsed cell codes
roger5641	0:b2692e0e4219	345	);
roger5641	0:b2692e0e4219	346
roger5641	0:b2692e0e4219	347	/*! Reads and parses the LTC681x auxiliary registers.
roger5641	0:b2692e0e4219	348
roger5641	0:b2692e0e4219	349	The function is used to read the parsed GPIO codes of the LTC6811. This function will send the requested
roger5641	0:b2692e0e4219	350	read commands parse the data and store the gpio voltages in the cell_asic structure.
roger5641	0:b2692e0e4219	351	*/
roger5641	0:b2692e0e4219	352	int8_t LTC681x_rdaux(uint8_t reg, //Determines which GPIO voltage register is read back.
roger5641	0:b2692e0e4219	353	uint8_t total_ic,//the number of ICs in the system
roger5641	0:b2692e0e4219	354	cell_asic ic[]//!< Measurement Data Structure
roger5641	0:b2692e0e4219	355	);
roger5641	0:b2692e0e4219	356
roger5641	0:b2692e0e4219	357	/*! Reads and parses the LTC681x stat registers.
roger5641	0:b2692e0e4219	358
roger5641	0:b2692e0e4219	359	The function is used to read the parsed status codes of the LTC6811. This function will send the requested
roger5641	0:b2692e0e4219	360	read commands parse the data and store the status voltages in the cell_asic structure
roger5641	0:b2692e0e4219	361	*/
roger5641	0:b2692e0e4219	362	int8_t LTC681x_rdstat( uint8_t reg, //!<Determines which Stat register is read back.
roger5641	0:b2692e0e4219	363	uint8_t total_ic,//!<the number of ICs in the system
roger5641	0:b2692e0e4219	364	cell_asic ic[]//!< Measurement Data Structure
roger5641	0:b2692e0e4219	365	);
roger5641	0:b2692e0e4219	366	/*! Write the LTC681x CFGRA
roger5641	0:b2692e0e4219	367
roger5641	0:b2692e0e4219	368	This command will write the configuration registers of the LTC681xs
roger5641	0:b2692e0e4219	369	connected in a daisy chain stack. The configuration is written in descending
roger5641	0:b2692e0e4219	370	order so the last device's configuration is written first.
roger5641	0:b2692e0e4219	371	*/
roger5641	0:b2692e0e4219	372	void LTC681x_wrcfg(uint8_t total_ic, //The number of ICs being written to
roger5641	0:b2692e0e4219	373	cell_asic ic[] //A two dimensional array of the configuration data that will be written
roger5641	0:b2692e0e4219	374	);
roger5641	0:b2692e0e4219	375
roger5641	0:b2692e0e4219	376	/*! Reads the LTC681x CFGRA register
roger5641	0:b2692e0e4219	377	*/
roger5641	0:b2692e0e4219	378	int8_t LTC681x_rdcfg(uint8_t total_ic, //Number of ICs in the system
roger5641	0:b2692e0e4219	379	cell_asic ic[] //A two dimensional array that the function stores the read configuration data.
roger5641	0:b2692e0e4219	380	);
roger5641	0:b2692e0e4219	381
roger5641	0:b2692e0e4219	382	/! Selft Test Helper Function/
roger5641	0:b2692e0e4219	383	uint16_t LTC681x_st_lookup(
roger5641	0:b2692e0e4219	384	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	385	uint8_t ST //Self Test
roger5641	0:b2692e0e4219	386	);
roger5641	0:b2692e0e4219	387
roger5641	0:b2692e0e4219	388	/! Helper Function to clear DCC bits in the CFGR Registers/
roger5641	0:b2692e0e4219	389	void clear_discharge(uint8_t total_ic,
roger5641	0:b2692e0e4219	390	cell_asic ic[]);
roger5641	0:b2692e0e4219	391
roger5641	0:b2692e0e4219	392	/! Helper function that runs the ADC Self Tests/
roger5641	0:b2692e0e4219	393	int16_t LTC681x_run_cell_adc_st(uint8_t adc_reg,
roger5641	0:b2692e0e4219	394	uint8_t total_ic,
roger5641	0:b2692e0e4219	395	cell_asic ic[]);
roger5641	0:b2692e0e4219	396
roger5641	0:b2692e0e4219	397	/! Helper function that runs the ADC Digital Redudancy commands and checks output for errors/
roger5641	0:b2692e0e4219	398	int16_t LTC681x_run_adc_redundancy_st(uint8_t adc_mode,
roger5641	0:b2692e0e4219	399	uint8_t adc_reg,
roger5641	0:b2692e0e4219	400	uint8_t total_ic,
roger5641	0:b2692e0e4219	401	cell_asic ic[]);
roger5641	0:b2692e0e4219	402
roger5641	0:b2692e0e4219	403	/! Helper function that runs the datasheet open wire algorithm/
roger5641	0:b2692e0e4219	404	void LTC681x_run_openwire(uint8_t total_ic,
roger5641	0:b2692e0e4219	405	cell_asic ic[]);
roger5641	0:b2692e0e4219	406
roger5641	0:b2692e0e4219	407	/! Helper Function that runs the ADC Overlap test/
roger5641	0:b2692e0e4219	408	uint16_t LTC681x_run_adc_overlap(uint8_t total_ic,
roger5641	0:b2692e0e4219	409	cell_asic ic[]);
roger5641	0:b2692e0e4219	410	/! Helper Function that counts overall PEC errors and register/IC PEC errors/
roger5641	0:b2692e0e4219	411	void LTC681x_check_pec(uint8_t total_ic,
roger5641	0:b2692e0e4219	412	uint8_t reg,
roger5641	0:b2692e0e4219	413	cell_asic ic[]);
roger5641	0:b2692e0e4219	414
roger5641	0:b2692e0e4219	415	/! Helper Function that resets the PEC error counters /
roger5641	0:b2692e0e4219	416	void LTC681x_reset_crc_count(uint8_t total_ic,
roger5641	0:b2692e0e4219	417	cell_asic ic[]);
roger5641	0:b2692e0e4219	418
roger5641	0:b2692e0e4219	419	/! Helper Function to initialize the CFGR data structures/
roger5641	0:b2692e0e4219	420	void LTC681x_init_cfg(uint8_t total_ic,
roger5641	0:b2692e0e4219	421	cell_asic ic[]);
roger5641	0:b2692e0e4219	422
roger5641	0:b2692e0e4219	423	/! Helper function to set appropriate bits in CFGR register based on bit function/
roger5641	0:b2692e0e4219	424	void LTC681x_set_cfgr(uint8_t nIC,
roger5641	0:b2692e0e4219	425	cell_asic ic[],
roger5641	0:b2692e0e4219	426	bool refon,
roger5641	0:b2692e0e4219	427	bool adcopt,
roger5641	0:b2692e0e4219	428	bool gpio[5],
roger5641	0:b2692e0e4219	429	bool dcc[12]);
roger5641	0:b2692e0e4219	430
roger5641	0:b2692e0e4219	431	/! Helper function to turn the refon bit HIGH or LOW/
roger5641	0:b2692e0e4219	432	void LTC681x_set_cfgr_refon(uint8_t nIC,
roger5641	0:b2692e0e4219	433	cell_asic ic[],
roger5641	0:b2692e0e4219	434	bool refon);
roger5641	0:b2692e0e4219	435
roger5641	0:b2692e0e4219	436	/! Helper function to turn the ADCOPT bit HIGH or LOW/
roger5641	0:b2692e0e4219	437	void LTC681x_set_cfgr_adcopt(uint8_t nIC,
roger5641	0:b2692e0e4219	438	cell_asic ic[],
roger5641	0:b2692e0e4219	439	bool adcopt);
roger5641	0:b2692e0e4219	440
roger5641	0:b2692e0e4219	441	/! Helper function to turn the GPIO bits HIGH or LOW/
roger5641	0:b2692e0e4219	442	void LTC681x_set_cfgr_gpio(uint8_t nIC,
roger5641	0:b2692e0e4219	443	cell_asic ic[],
roger5641	0:b2692e0e4219	444	bool gpio[]);
roger5641	0:b2692e0e4219	445
roger5641	0:b2692e0e4219	446	/! Helper function to turn the DCC bits HIGH or LOW/
roger5641	0:b2692e0e4219	447	void LTC681x_set_cfgr_dis(uint8_t nIC,
roger5641	0:b2692e0e4219	448	cell_asic ic[],
roger5641	0:b2692e0e4219	449	bool dcc[]);
roger5641	0:b2692e0e4219	450
roger5641	0:b2692e0e4219	451
roger5641	0:b2692e0e4219	452
roger5641	0:b2692e0e4219	453	//This needs a PROGMEM = when using with a LINDUINO
roger5641	0:b2692e0e4219	454	const uint16_t crc15Table[256] {0x0,0xc599, 0xceab, 0xb32, 0xd8cf, 0x1d56, 0x1664, 0xd3fd, 0xf407, 0x319e, 0x3aac, //!<precomputed CRC15 Table
roger5641	0:b2692e0e4219	455	0xff35, 0x2cc8, 0xe951, 0xe263, 0x27fa, 0xad97, 0x680e, 0x633c, 0xa6a5, 0x7558, 0xb0c1,
roger5641	0:b2692e0e4219	456	0xbbf3, 0x7e6a, 0x5990, 0x9c09, 0x973b, 0x52a2, 0x815f, 0x44c6, 0x4ff4, 0x8a6d, 0x5b2e,
roger5641	0:b2692e0e4219	457	0x9eb7, 0x9585, 0x501c, 0x83e1, 0x4678, 0x4d4a, 0x88d3, 0xaf29, 0x6ab0, 0x6182, 0xa41b,
roger5641	0:b2692e0e4219	458	0x77e6, 0xb27f, 0xb94d, 0x7cd4, 0xf6b9, 0x3320, 0x3812, 0xfd8b, 0x2e76, 0xebef, 0xe0dd,
roger5641	0:b2692e0e4219	459	0x2544, 0x2be, 0xc727, 0xcc15, 0x98c, 0xda71, 0x1fe8, 0x14da, 0xd143, 0xf3c5, 0x365c,
roger5641	0:b2692e0e4219	460	0x3d6e, 0xf8f7,0x2b0a, 0xee93, 0xe5a1, 0x2038, 0x7c2, 0xc25b, 0xc969, 0xcf0, 0xdf0d,
roger5641	0:b2692e0e4219	461	0x1a94, 0x11a6, 0xd43f, 0x5e52, 0x9bcb, 0x90f9, 0x5560, 0x869d, 0x4304, 0x4836, 0x8daf,
roger5641	0:b2692e0e4219	462	0xaa55, 0x6fcc, 0x64fe, 0xa167, 0x729a, 0xb703, 0xbc31, 0x79a8, 0xa8eb, 0x6d72, 0x6640,
roger5641	0:b2692e0e4219	463	0xa3d9, 0x7024, 0xb5bd, 0xbe8f, 0x7b16, 0x5cec, 0x9975, 0x9247, 0x57de, 0x8423, 0x41ba,
roger5641	0:b2692e0e4219	464	0x4a88, 0x8f11, 0x57c, 0xc0e5, 0xcbd7, 0xe4e, 0xddb3, 0x182a, 0x1318, 0xd681, 0xf17b,
roger5641	0:b2692e0e4219	465	0x34e2, 0x3fd0, 0xfa49, 0x29b4, 0xec2d, 0xe71f, 0x2286, 0xa213, 0x678a, 0x6cb8, 0xa921,
roger5641	0:b2692e0e4219	466	0x7adc, 0xbf45, 0xb477, 0x71ee, 0x5614, 0x938d, 0x98bf, 0x5d26, 0x8edb, 0x4b42, 0x4070,
roger5641	0:b2692e0e4219	467	0x85e9, 0xf84, 0xca1d, 0xc12f, 0x4b6, 0xd74b, 0x12d2, 0x19e0, 0xdc79, 0xfb83, 0x3e1a, 0x3528,
roger5641	0:b2692e0e4219	468	0xf0b1, 0x234c, 0xe6d5, 0xede7, 0x287e, 0xf93d, 0x3ca4, 0x3796, 0xf20f, 0x21f2, 0xe46b, 0xef59,
roger5641	0:b2692e0e4219	469	0x2ac0, 0xd3a, 0xc8a3, 0xc391, 0x608, 0xd5f5, 0x106c, 0x1b5e, 0xdec7, 0x54aa, 0x9133, 0x9a01,
roger5641	0:b2692e0e4219	470	0x5f98, 0x8c65, 0x49fc, 0x42ce, 0x8757, 0xa0ad, 0x6534, 0x6e06, 0xab9f, 0x7862, 0xbdfb, 0xb6c9,
roger5641	0:b2692e0e4219	471	0x7350, 0x51d6, 0x944f, 0x9f7d, 0x5ae4, 0x8919, 0x4c80, 0x47b2, 0x822b, 0xa5d1, 0x6048, 0x6b7a,
roger5641	0:b2692e0e4219	472	0xaee3, 0x7d1e, 0xb887, 0xb3b5, 0x762c, 0xfc41, 0x39d8, 0x32ea, 0xf773, 0x248e, 0xe117, 0xea25,
roger5641	0:b2692e0e4219	473	0x2fbc, 0x846, 0xcddf, 0xc6ed, 0x374, 0xd089, 0x1510, 0x1e22, 0xdbbb, 0xaf8, 0xcf61, 0xc453,
roger5641	0:b2692e0e4219	474	0x1ca, 0xd237, 0x17ae, 0x1c9c, 0xd905, 0xfeff, 0x3b66, 0x3054, 0xf5cd, 0x2630, 0xe3a9, 0xe89b,
roger5641	0:b2692e0e4219	475	0x2d02, 0xa76f, 0x62f6, 0x69c4, 0xac5d, 0x7fa0, 0xba39, 0xb10b, 0x7492, 0x5368, 0x96f1, 0x9dc3,
roger5641	0:b2692e0e4219	476	0x585a, 0x8ba7, 0x4e3e, 0x450c, 0x8095
roger5641	0:b2692e0e4219	477	};
roger5641	0:b2692e0e4219	478
roger5641	0:b2692e0e4219	479	//******************************** LTC6811 ****************************************//
roger5641	0:b2692e0e4219	480	void LTC6811_init_reg_limits(uint8_t total_ic, cell_asic ic[]);
roger5641	0:b2692e0e4219	481
roger5641	0:b2692e0e4219	482	void LTC6811_set_discharge(int Cell,
roger5641	0:b2692e0e4219	483	uint8_t total_ic,
roger5641	0:b2692e0e4219	484	cell_asic ic[]);
roger5641	0:b2692e0e4219	485
roger5641	0:b2692e0e4219	486	//******************************** SPI ****************************************//
roger5641	0:b2692e0e4219	487	/*
roger5641	0:b2692e0e4219	488	Writes an array of bytes out of the SPI port
roger5641	0:b2692e0e4219	489	*/
roger5641	0:b2692e0e4219	490	void spi_write_array(uint8_t len, // Option: Number of bytes to be written on the SPI port
roger5641	0:b2692e0e4219	491	uint8_t data[] //Array of bytes to be written on the SPI port
roger5641	0:b2692e0e4219	492	);
roger5641	0:b2692e0e4219	493	/*
roger5641	0:b2692e0e4219	494	Writes and read a set number of bytes using the SPI port.
roger5641	0:b2692e0e4219	495
roger5641	0:b2692e0e4219	496	*/
roger5641	0:b2692e0e4219	497
roger5641	0:b2692e0e4219	498	void spi_write_read(uint8_t tx_Data[],//array of data to be written on SPI port
roger5641	0:b2692e0e4219	499	uint8_t tx_len, //length of the tx data arry
roger5641	0:b2692e0e4219	500	uint8_t *rx_data,//Input: array that will store the data read by the SPI port
roger5641	0:b2692e0e4219	501	uint8_t rx_len //Option: number of bytes to be read from the SPI port
roger5641	0:b2692e0e4219	502	);
roger5641	0:b2692e0e4219	503
roger5641	0:b2692e0e4219	504	uint8_t spi_read_byte(uint8_t tx_dat);//name conflicts with linduino also needs to take a byte as a parameter
roger5641	0:b2692e0e4219	505
roger5641	0:b2692e0e4219	506	//******************************** UserInterface ****************************************//
roger5641	0:b2692e0e4219	507	// io buffer
roger5641	0:b2692e0e4219	508	extern char ui_buffer[UI_BUFFER_SIZE];
roger5641	0:b2692e0e4219	509
roger5641	0:b2692e0e4219	510	// Read data from the serial interface into the ui_buffer buffer
roger5641	0:b2692e0e4219	511	uint8_t read_data();
roger5641	0:b2692e0e4219	512
roger5641	0:b2692e0e4219	513	// Read an integer from the serial interface.
roger5641	0:b2692e0e4219	514	// The routine can recognize Hex, Decimal, Octal, or Binary
roger5641	0:b2692e0e4219	515	// Example:
roger5641	0:b2692e0e4219	516	// Hex: 0x11 (0x prefix)
roger5641	0:b2692e0e4219	517	// Decimal: 17
roger5641	0:b2692e0e4219	518	// Octal: O21 (leading letter O prefix)
roger5641	0:b2692e0e4219	519	// Binary: B10001 (leading letter B prefix)
roger5641	0:b2692e0e4219	520	int32_t read_int();
roger5641	0:b2692e0e4219	521
roger5641	0:b2692e0e4219	522	// Read a character from the serial interface
roger5641	0:b2692e0e4219	523	int8_t read_char();
roger5641	0:b2692e0e4219	524
roger5641	0:b2692e0e4219	525	//******************************** UserInterface ****************************************//
roger5641	0:b2692e0e4219	526
roger5641	0:b2692e0e4219	527
roger5641	0:b2692e0e4219	528
roger5641	0:b2692e0e4219	529
roger5641	0:b2692e0e4219	530
roger5641	0:b2692e0e4219	531	#endif
roger5641	0:b2692e0e4219	532
roger5641	0:b2692e0e4219	533
roger5641	0:b2692e0e4219	534	//////////////////////////
roger5641	0:b2692e0e4219	535
roger5641	0:b2692e0e4219	536	void wakeup_idle(uint8_t total_ic)
roger5641	0:b2692e0e4219	537	{
roger5641	0:b2692e0e4219	538	for (int i =0; i<total_ic; i++)
roger5641	0:b2692e0e4219	539	{
roger5641	0:b2692e0e4219	540	CS_PIN = 0;
roger5641	0:b2692e0e4219	541	//delayMicroseconds(2); //Guarantees the isoSPI will be in ready mode
roger5641	0:b2692e0e4219	542	spi_read_byte(0xff);
roger5641	0:b2692e0e4219	543	CS_PIN = 1;
roger5641	0:b2692e0e4219	544	}
roger5641	0:b2692e0e4219	545	}
roger5641	0:b2692e0e4219	546
roger5641	0:b2692e0e4219	547	//Generic wakeup commannd to wake the LTC6813 from sleep
roger5641	0:b2692e0e4219	548	void wakeup_sleep(uint8_t total_ic)
roger5641	0:b2692e0e4219	549	{
roger5641	0:b2692e0e4219	550	for (int i =0; i<total_ic; i++)
roger5641	0:b2692e0e4219	551	{
roger5641	0:b2692e0e4219	552	CS_PIN = 0;
roger5641	3:2561f59cd3dd	553	wait_us(300); // Guarantees the LTC6813 will be in standby
roger5641	0:b2692e0e4219	554	CS_PIN = 1;
roger5641	3:2561f59cd3dd	555	wait_us(10);
roger5641	0:b2692e0e4219	556	}
roger5641	0:b2692e0e4219	557	}
roger5641	0:b2692e0e4219	558
roger5641	0:b2692e0e4219	559
roger5641	0:b2692e0e4219	560	//Generic function to write 68xx commands. Function calculated PEC for tx_cmd data
roger5641	0:b2692e0e4219	561	void cmd_68(uint8_t tx_cmd[2])
roger5641	0:b2692e0e4219	562	{
roger5641	0:b2692e0e4219	563	uint8_t cmd[4];
roger5641	0:b2692e0e4219	564	uint16_t cmd_pec;
roger5641	1:cd25bc7d2832	565	// uint8_t md_bits;
roger5641	0:b2692e0e4219	566
roger5641	0:b2692e0e4219	567	cmd[0] = tx_cmd[0];
roger5641	0:b2692e0e4219	568	cmd[1] = tx_cmd[1];
roger5641	0:b2692e0e4219	569	cmd_pec = pec15_calc(2, cmd);
roger5641	0:b2692e0e4219	570	cmd[2] = (uint8_t)(cmd_pec >> 8);
roger5641	0:b2692e0e4219	571	cmd[3] = (uint8_t)(cmd_pec);
roger5641	0:b2692e0e4219	572	CS_PIN = 0;
roger5641	0:b2692e0e4219	573	spi_write_array(4,cmd);
roger5641	0:b2692e0e4219	574	CS_PIN = 1;
roger5641	0:b2692e0e4219	575	}
roger5641	0:b2692e0e4219	576
roger5641	0:b2692e0e4219	577	//Generic function to write 68xx commands and write payload data. Function calculated PEC for tx_cmd data
roger5641	0:b2692e0e4219	578	void write_68(uint8_t total_ic , uint8_t tx_cmd[2], uint8_t data[])
roger5641	0:b2692e0e4219	579	{
roger5641	0:b2692e0e4219	580	const uint8_t BYTES_IN_REG = 6;
roger5641	0:b2692e0e4219	581	const uint8_t CMD_LEN = 4+(8*total_ic);
roger5641	0:b2692e0e4219	582	uint8_t *cmd;
roger5641	0:b2692e0e4219	583	uint16_t data_pec;
roger5641	0:b2692e0e4219	584	uint16_t cmd_pec;
roger5641	0:b2692e0e4219	585	uint8_t cmd_index;
roger5641	0:b2692e0e4219	586
roger5641	0:b2692e0e4219	587	cmd = (uint8_t )malloc(CMD_LENsizeof(uint8_t));
roger5641	0:b2692e0e4219	588	cmd[0] = tx_cmd[0];
roger5641	0:b2692e0e4219	589	cmd[1] = tx_cmd[1];
roger5641	0:b2692e0e4219	590	cmd_pec = pec15_calc(2, cmd);
roger5641	0:b2692e0e4219	591	cmd[2] = (uint8_t)(cmd_pec >> 8);
roger5641	0:b2692e0e4219	592	cmd[3] = (uint8_t)(cmd_pec);
roger5641	0:b2692e0e4219	593	cmd_index = 4;
roger5641	0:b2692e0e4219	594	for (uint8_t current_ic = total_ic; current_ic > 0; current_ic--) // executes for each LTC681x in daisy chain, this loops starts with
roger5641	0:b2692e0e4219	595	{
roger5641	0:b2692e0e4219	596	// the last IC on the stack. The first configuration written is
roger5641	0:b2692e0e4219	597	// received by the last IC in the daisy chain
roger5641	0:b2692e0e4219	598
roger5641	0:b2692e0e4219	599	for (uint8_t current_byte = 0; current_byte < BYTES_IN_REG; current_byte++)
roger5641	0:b2692e0e4219	600	{
roger5641	0:b2692e0e4219	601	cmd[cmd_index] = data[((current_ic-1)*6)+current_byte];
roger5641	0:b2692e0e4219	602	cmd_index = cmd_index + 1;
roger5641	0:b2692e0e4219	603	}
roger5641	0:b2692e0e4219	604
roger5641	0:b2692e0e4219	605	data_pec = (uint16_t)pec15_calc(BYTES_IN_REG, &data[(current_ic-1)*6]); // calculating the PEC for each Iss configuration register data
roger5641	0:b2692e0e4219	606	cmd[cmd_index] = (uint8_t)(data_pec >> 8);
roger5641	0:b2692e0e4219	607	cmd[cmd_index + 1] = (uint8_t)data_pec;
roger5641	0:b2692e0e4219	608	cmd_index = cmd_index + 2;
roger5641	0:b2692e0e4219	609	}
roger5641	0:b2692e0e4219	610
roger5641	0:b2692e0e4219	611
roger5641	0:b2692e0e4219	612	CS_PIN = 0;
roger5641	0:b2692e0e4219	613	spi_write_array(CMD_LEN, cmd);
roger5641	0:b2692e0e4219	614	CS_PIN = 1;
roger5641	0:b2692e0e4219	615	free(cmd);
roger5641	0:b2692e0e4219	616	}
roger5641	0:b2692e0e4219	617
roger5641	0:b2692e0e4219	618	//Generic function to write 68xx commands and read data. Function calculated PEC for tx_cmd data
roger5641	0:b2692e0e4219	619	int8_t read_68( uint8_t total_ic, uint8_t tx_cmd[2], uint8_t *rx_data)
roger5641	0:b2692e0e4219	620	{
roger5641	0:b2692e0e4219	621	const uint8_t BYTES_IN_REG = 8;
roger5641	0:b2692e0e4219	622	uint8_t cmd[4];
roger5641	0:b2692e0e4219	623	uint8_t data[256];
roger5641	0:b2692e0e4219	624	int8_t pec_error = 0;
roger5641	0:b2692e0e4219	625	uint16_t cmd_pec;
roger5641	0:b2692e0e4219	626	uint16_t data_pec;
roger5641	0:b2692e0e4219	627	uint16_t received_pec;
roger5641	0:b2692e0e4219	628
roger5641	0:b2692e0e4219	629	// data = (uint8_t ) malloc((8total_ic)*sizeof(uint8_t)); // This is a problem because it can fail
roger5641	0:b2692e0e4219	630
roger5641	0:b2692e0e4219	631	cmd[0] = tx_cmd[0];
roger5641	0:b2692e0e4219	632	cmd[1] = tx_cmd[1];
roger5641	0:b2692e0e4219	633	cmd_pec = pec15_calc(2, cmd);
roger5641	0:b2692e0e4219	634	cmd[2] = (uint8_t)(cmd_pec >> 8);
roger5641	0:b2692e0e4219	635	cmd[3] = (uint8_t)(cmd_pec);
roger5641	0:b2692e0e4219	636
roger5641	0:b2692e0e4219	637
roger5641	0:b2692e0e4219	638	CS_PIN = 0;
roger5641	0:b2692e0e4219	639	spi_write_read(cmd, 4, data, (BYTES_IN_REG*total_ic)); //Read the configuration data of all ICs on the daisy chain into
roger5641	0:b2692e0e4219	640	CS_PIN = 1; //rx_data[] array
roger5641	0:b2692e0e4219	641
roger5641	0:b2692e0e4219	642	for (uint8_t current_ic = 0; current_ic < total_ic; current_ic++) //executes for each LTC681x in the daisy chain and packs the data
roger5641	0:b2692e0e4219	643	{
roger5641	0:b2692e0e4219	644	//into the r_comm array as well as check the received Config data
roger5641	0:b2692e0e4219	645	//for any bit errors
roger5641	0:b2692e0e4219	646	for (uint8_t current_byte = 0; current_byte < BYTES_IN_REG; current_byte++)
roger5641	0:b2692e0e4219	647	{
roger5641	0:b2692e0e4219	648	rx_data[(current_ic8)+current_byte] = data[current_byte + (current_icBYTES_IN_REG)];
roger5641	0:b2692e0e4219	649	}
roger5641	0:b2692e0e4219	650	received_pec = (rx_data[(current_ic8)+6]<<8) + rx_data[(current_ic8)+7];
roger5641	0:b2692e0e4219	651	data_pec = pec15_calc(6, &rx_data[current_ic*8]);
roger5641	0:b2692e0e4219	652	if (received_pec != data_pec)
roger5641	0:b2692e0e4219	653	{
roger5641	0:b2692e0e4219	654	pec_error = -1;
roger5641	0:b2692e0e4219	655	}
roger5641	0:b2692e0e4219	656	}
roger5641	0:b2692e0e4219	657
roger5641	0:b2692e0e4219	658
roger5641	0:b2692e0e4219	659	return(pec_error);
roger5641	0:b2692e0e4219	660	}
roger5641	0:b2692e0e4219	661
roger5641	0:b2692e0e4219	662	// Calculates and returns the CRC15
roger5641	0:b2692e0e4219	663
roger5641	0:b2692e0e4219	664	uint16_t pec15_calc(uint8_t len, //Number of bytes that will be used to calculate a PEC
roger5641	0:b2692e0e4219	665	uint8_t *data //Array of data that will be used to calculate a PEC
roger5641	0:b2692e0e4219	666	)
roger5641	0:b2692e0e4219	667	{
roger5641	0:b2692e0e4219	668	uint16_t remainder,addr;
roger5641	0:b2692e0e4219	669
roger5641	0:b2692e0e4219	670	remainder = 16;//initialize the PEC
roger5641	0:b2692e0e4219	671	for (uint8_t i = 0; i<len; i++) // loops for each byte in data array
roger5641	0:b2692e0e4219	672	{
roger5641	0:b2692e0e4219	673	addr = ((remainder>>7)^data[i])&0xff;//calculate PEC table address
roger5641	0:b2692e0e4219	674
roger5641	0:b2692e0e4219	675	remainder = (remainder<<8)^crc15Table[addr];
roger5641	0:b2692e0e4219	676	}
roger5641	0:b2692e0e4219	677	return(remainder*2);//The CRC15 has a 0 in the LSB so the remainder must be multiplied by 2
roger5641	0:b2692e0e4219	678	}
roger5641	0:b2692e0e4219	679
roger5641	0:b2692e0e4219	680	//Starts cell voltage conversion
roger5641	0:b2692e0e4219	681	void LTC681x_adcv(
roger5641	0:b2692e0e4219	682	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	683	uint8_t DCP, //Discharge Permit
roger5641	0:b2692e0e4219	684	uint8_t CH //Cell Channels to be measured
roger5641	0:b2692e0e4219	685	)
roger5641	0:b2692e0e4219	686	{
roger5641	0:b2692e0e4219	687	uint8_t cmd[4];
roger5641	0:b2692e0e4219	688	uint8_t md_bits;
roger5641	0:b2692e0e4219	689
roger5641	0:b2692e0e4219	690	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	691	cmd[0] = md_bits + 0x02;
roger5641	0:b2692e0e4219	692	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	693	cmd[1] = md_bits + 0x60 + (DCP<<4) + CH;
roger5641	0:b2692e0e4219	694	cmd_68(cmd);
roger5641	0:b2692e0e4219	695	}
roger5641	0:b2692e0e4219	696
roger5641	0:b2692e0e4219	697	//Starts cell voltage overlap conversion
roger5641	0:b2692e0e4219	698	void LTC681x_adol(
roger5641	0:b2692e0e4219	699	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	700	uint8_t DCP //Discharge Permit
roger5641	0:b2692e0e4219	701	)
roger5641	0:b2692e0e4219	702	{
roger5641	0:b2692e0e4219	703	uint8_t cmd[4];
roger5641	0:b2692e0e4219	704	uint8_t md_bits;
roger5641	0:b2692e0e4219	705	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	706	cmd[0] = md_bits + 0x02;
roger5641	0:b2692e0e4219	707	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	708	cmd[1] = md_bits + (DCP<<4) +0x01;
roger5641	0:b2692e0e4219	709	cmd_68(cmd);
roger5641	0:b2692e0e4219	710	}
roger5641	0:b2692e0e4219	711
roger5641	0:b2692e0e4219	712	//Starts cell voltage self test conversion
roger5641	0:b2692e0e4219	713	void LTC681x_cvst(
roger5641	0:b2692e0e4219	714	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	715	uint8_t ST //Self Test
roger5641	0:b2692e0e4219	716	)
roger5641	0:b2692e0e4219	717	{
roger5641	0:b2692e0e4219	718	uint8_t cmd[2];
roger5641	0:b2692e0e4219	719	uint8_t md_bits;
roger5641	0:b2692e0e4219	720
roger5641	0:b2692e0e4219	721	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	722	cmd[0] = md_bits + 0x02;
roger5641	0:b2692e0e4219	723	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	724	cmd[1] = md_bits + ((ST)<<5) +0x07;
roger5641	0:b2692e0e4219	725	cmd_68(cmd);
roger5641	0:b2692e0e4219	726
roger5641	0:b2692e0e4219	727	}
roger5641	0:b2692e0e4219	728
roger5641	0:b2692e0e4219	729	//Start an Auxiliary Register Self Test Conversion
roger5641	0:b2692e0e4219	730	void LTC681x_axst(
roger5641	0:b2692e0e4219	731	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	732	uint8_t ST //Self Test
roger5641	0:b2692e0e4219	733	)
roger5641	0:b2692e0e4219	734	{
roger5641	0:b2692e0e4219	735	uint8_t cmd[4];
roger5641	0:b2692e0e4219	736	uint8_t md_bits;
roger5641	0:b2692e0e4219	737
roger5641	0:b2692e0e4219	738	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	739	cmd[0] = md_bits + 0x04;
roger5641	0:b2692e0e4219	740	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	741	cmd[1] = md_bits + ((ST&0x03)<<5) +0x07;
roger5641	0:b2692e0e4219	742	cmd_68(cmd);
roger5641	0:b2692e0e4219	743
roger5641	0:b2692e0e4219	744	}
roger5641	0:b2692e0e4219	745
roger5641	0:b2692e0e4219	746	//Start a Status Register Self Test Conversion
roger5641	0:b2692e0e4219	747	void LTC681x_statst(
roger5641	0:b2692e0e4219	748	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	749	uint8_t ST //Self Test
roger5641	0:b2692e0e4219	750	)
roger5641	0:b2692e0e4219	751	{
roger5641	0:b2692e0e4219	752	uint8_t cmd[2];
roger5641	0:b2692e0e4219	753	uint8_t md_bits;
roger5641	0:b2692e0e4219	754
roger5641	0:b2692e0e4219	755	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	756	cmd[0] = md_bits + 0x04;
roger5641	0:b2692e0e4219	757	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	758	cmd[1] = md_bits + ((ST&0x03)<<5) +0x0F;
roger5641	0:b2692e0e4219	759	cmd_68(cmd);
roger5641	0:b2692e0e4219	760
roger5641	0:b2692e0e4219	761	}
roger5641	0:b2692e0e4219	762
roger5641	0:b2692e0e4219	763	//This function will block operation until the ADC has finished it's conversion
roger5641	0:b2692e0e4219	764	uint32_t LTC681x_pollAdc()
roger5641	0:b2692e0e4219	765	{
roger5641	0:b2692e0e4219	766	uint32_t counter = 0;
roger5641	0:b2692e0e4219	767	uint8_t finished = 0;
roger5641	0:b2692e0e4219	768	uint8_t current_time = 0;
roger5641	0:b2692e0e4219	769	uint8_t cmd[4];
roger5641	0:b2692e0e4219	770	uint16_t cmd_pec;
roger5641	0:b2692e0e4219	771
roger5641	0:b2692e0e4219	772
roger5641	0:b2692e0e4219	773	cmd[0] = 0x07;
roger5641	0:b2692e0e4219	774	cmd[1] = 0x14;
roger5641	0:b2692e0e4219	775	cmd_pec = pec15_calc(2, cmd);
roger5641	0:b2692e0e4219	776	cmd[2] = (uint8_t)(cmd_pec >> 8);
roger5641	0:b2692e0e4219	777	cmd[3] = (uint8_t)(cmd_pec);
roger5641	0:b2692e0e4219	778
roger5641	0:b2692e0e4219	779	CS_PIN = 0;
roger5641	0:b2692e0e4219	780	spi_write_array(4,cmd);
roger5641	0:b2692e0e4219	781
roger5641	0:b2692e0e4219	782	while ((counter<200000)&&(finished == 0))
roger5641	0:b2692e0e4219	783	{
roger5641	0:b2692e0e4219	784	current_time = spi_read_byte(0xff);
roger5641	0:b2692e0e4219	785	if (current_time>0)
roger5641	0:b2692e0e4219	786	{
roger5641	0:b2692e0e4219	787	finished = 1;
roger5641	0:b2692e0e4219	788	}
roger5641	0:b2692e0e4219	789	else
roger5641	0:b2692e0e4219	790	{
roger5641	0:b2692e0e4219	791	counter = counter + 10;
roger5641	0:b2692e0e4219	792	}
roger5641	0:b2692e0e4219	793	}
roger5641	0:b2692e0e4219	794
roger5641	0:b2692e0e4219	795	CS_PIN = 1;
roger5641	0:b2692e0e4219	796
roger5641	0:b2692e0e4219	797
roger5641	0:b2692e0e4219	798	return(counter);
roger5641	0:b2692e0e4219	799	}
roger5641	0:b2692e0e4219	800
roger5641	0:b2692e0e4219	801	//Start a GPIO and Vref2 Conversion
roger5641	0:b2692e0e4219	802	void LTC681x_adax(
roger5641	0:b2692e0e4219	803	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	804	uint8_t CHG //GPIO Channels to be measured)
roger5641	0:b2692e0e4219	805	)
roger5641	0:b2692e0e4219	806	{
roger5641	0:b2692e0e4219	807	uint8_t cmd[4];
roger5641	0:b2692e0e4219	808	uint8_t md_bits;
roger5641	0:b2692e0e4219	809
roger5641	0:b2692e0e4219	810	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	811	cmd[0] = md_bits + 0x04;
roger5641	0:b2692e0e4219	812	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	813	cmd[1] = md_bits + 0x60 + CHG ;
roger5641	0:b2692e0e4219	814	cmd_68(cmd);
roger5641	0:b2692e0e4219	815
roger5641	0:b2692e0e4219	816	}
roger5641	0:b2692e0e4219	817
roger5641	0:b2692e0e4219	818	//Start an GPIO Redundancy test
roger5641	0:b2692e0e4219	819	void LTC681x_adaxd(
roger5641	0:b2692e0e4219	820	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	821	uint8_t CHG //GPIO Channels to be measured)
roger5641	0:b2692e0e4219	822	)
roger5641	0:b2692e0e4219	823	{
roger5641	0:b2692e0e4219	824	uint8_t cmd[4];
roger5641	0:b2692e0e4219	825	uint8_t md_bits;
roger5641	0:b2692e0e4219	826
roger5641	0:b2692e0e4219	827	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	828	cmd[0] = md_bits + 0x04;
roger5641	0:b2692e0e4219	829	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	830	cmd[1] = md_bits + CHG ;
roger5641	0:b2692e0e4219	831	cmd_68(cmd);
roger5641	0:b2692e0e4219	832	}
roger5641	0:b2692e0e4219	833
roger5641	0:b2692e0e4219	834	//Start a Status ADC Conversion
roger5641	0:b2692e0e4219	835	void LTC681x_adstat(
roger5641	0:b2692e0e4219	836	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	837	uint8_t CHST //GPIO Channels to be measured
roger5641	0:b2692e0e4219	838	)
roger5641	0:b2692e0e4219	839	{
roger5641	0:b2692e0e4219	840	uint8_t cmd[4];
roger5641	0:b2692e0e4219	841	uint8_t md_bits;
roger5641	0:b2692e0e4219	842
roger5641	0:b2692e0e4219	843	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	844	cmd[0] = md_bits + 0x04;
roger5641	0:b2692e0e4219	845	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	846	cmd[1] = md_bits + 0x68 + CHST ;
roger5641	0:b2692e0e4219	847	cmd_68(cmd);
roger5641	0:b2692e0e4219	848	}
roger5641	0:b2692e0e4219	849
roger5641	0:b2692e0e4219	850	// Start a Status register redundancy test Conversion
roger5641	0:b2692e0e4219	851	void LTC681x_adstatd(
roger5641	0:b2692e0e4219	852	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	853	uint8_t CHST //GPIO Channels to be measured
roger5641	0:b2692e0e4219	854	)
roger5641	0:b2692e0e4219	855	{
roger5641	0:b2692e0e4219	856	uint8_t cmd[2];
roger5641	0:b2692e0e4219	857	uint8_t md_bits;
roger5641	0:b2692e0e4219	858
roger5641	0:b2692e0e4219	859	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	860	cmd[0] = md_bits + 0x04;
roger5641	0:b2692e0e4219	861	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	862	cmd[1] = md_bits + 0x08 + CHST ;
roger5641	0:b2692e0e4219	863	cmd_68(cmd);
roger5641	0:b2692e0e4219	864
roger5641	0:b2692e0e4219	865	}
roger5641	0:b2692e0e4219	866
roger5641	0:b2692e0e4219	867
roger5641	0:b2692e0e4219	868	// Start an open wire Conversion
roger5641	0:b2692e0e4219	869	void LTC681x_adow(
roger5641	0:b2692e0e4219	870	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	871	uint8_t PUP //Discharge Permit
roger5641	0:b2692e0e4219	872	)
roger5641	0:b2692e0e4219	873	{
roger5641	0:b2692e0e4219	874	uint8_t cmd[2];
roger5641	0:b2692e0e4219	875	uint8_t md_bits;
roger5641	0:b2692e0e4219	876	md_bits = (MD & 0x02) >> 1;
roger5641	0:b2692e0e4219	877	cmd[0] = md_bits + 0x02;
roger5641	0:b2692e0e4219	878	md_bits = (MD & 0x01) << 7;
roger5641	0:b2692e0e4219	879	cmd[1] = md_bits + 0x28 + (PUP<<6) ;//+ CH;
roger5641	0:b2692e0e4219	880	cmd_68(cmd);
roger5641	0:b2692e0e4219	881	}
roger5641	0:b2692e0e4219	882
roger5641	0:b2692e0e4219	883	// Reads the raw cell voltage register data
roger5641	0:b2692e0e4219	884	void LTC681x_rdcv_reg(uint8_t reg, //Determines which cell voltage register is read back
roger5641	0:b2692e0e4219	885	uint8_t total_ic, //the number of ICs in the
roger5641	0:b2692e0e4219	886	uint8_t *data //An array of the unparsed cell codes
roger5641	0:b2692e0e4219	887	)
roger5641	0:b2692e0e4219	888	{
roger5641	0:b2692e0e4219	889	const uint8_t REG_LEN = 8; //number of bytes in each ICs register + 2 bytes for the PEC
roger5641	0:b2692e0e4219	890	uint8_t cmd[4];
roger5641	0:b2692e0e4219	891	uint16_t cmd_pec;
roger5641	0:b2692e0e4219	892
roger5641	0:b2692e0e4219	893	if (reg == 1) //1: RDCVA
roger5641	0:b2692e0e4219	894	{
roger5641	0:b2692e0e4219	895	cmd[1] = 0x04;
roger5641	0:b2692e0e4219	896	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	897	}
roger5641	0:b2692e0e4219	898	else if (reg == 2) //2: RDCVB
roger5641	0:b2692e0e4219	899	{
roger5641	0:b2692e0e4219	900	cmd[1] = 0x06;
roger5641	0:b2692e0e4219	901	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	902	}
roger5641	0:b2692e0e4219	903	else if (reg == 3) //3: RDCVC
roger5641	0:b2692e0e4219	904	{
roger5641	0:b2692e0e4219	905	cmd[1] = 0x08;
roger5641	0:b2692e0e4219	906	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	907	}
roger5641	0:b2692e0e4219	908	else if (reg == 4) //4: RDCVD
roger5641	0:b2692e0e4219	909	{
roger5641	0:b2692e0e4219	910	cmd[1] = 0x0A;
roger5641	0:b2692e0e4219	911	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	912	}
roger5641	0:b2692e0e4219	913	else if (reg == 5) //4: RDCVE
roger5641	0:b2692e0e4219	914	{
roger5641	0:b2692e0e4219	915	cmd[1] = 0x09;
roger5641	0:b2692e0e4219	916	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	917	}
roger5641	0:b2692e0e4219	918	else if (reg == 6) //4: RDCVF
roger5641	0:b2692e0e4219	919	{
roger5641	0:b2692e0e4219	920	cmd[1] = 0x0B;
roger5641	0:b2692e0e4219	921	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	922	}
roger5641	0:b2692e0e4219	923
roger5641	0:b2692e0e4219	924
roger5641	0:b2692e0e4219	925	cmd_pec = pec15_calc(2, cmd);
roger5641	0:b2692e0e4219	926	cmd[2] = (uint8_t)(cmd_pec >> 8);
roger5641	0:b2692e0e4219	927	cmd[3] = (uint8_t)(cmd_pec);
roger5641	0:b2692e0e4219	928
roger5641	0:b2692e0e4219	929	CS_PIN = 0;
roger5641	0:b2692e0e4219	930	spi_write_read(cmd,4,data,(REG_LEN*total_ic));
roger5641	0:b2692e0e4219	931	CS_PIN = 1;
roger5641	0:b2692e0e4219	932
roger5641	0:b2692e0e4219	933	}
roger5641	0:b2692e0e4219	934
roger5641	0:b2692e0e4219	935	/*
roger5641	0:b2692e0e4219	936	The function reads a single GPIO voltage register and stores thre read data
roger5641	0:b2692e0e4219	937	in the *data point as a byte array. This function is rarely used outside of
roger5641	0:b2692e0e4219	938	the LTC6811_rdaux() command.
roger5641	0:b2692e0e4219	939	*/
roger5641	0:b2692e0e4219	940	void LTC681x_rdaux_reg(uint8_t reg, //Determines which GPIO voltage register is read back
roger5641	0:b2692e0e4219	941	uint8_t total_ic, //The number of ICs in the system
roger5641	0:b2692e0e4219	942	uint8_t *data //Array of the unparsed auxiliary codes
roger5641	0:b2692e0e4219	943	)
roger5641	0:b2692e0e4219	944	{
roger5641	0:b2692e0e4219	945	const uint8_t REG_LEN = 8; // number of bytes in the register + 2 bytes for the PEC
roger5641	0:b2692e0e4219	946	uint8_t cmd[4];
roger5641	0:b2692e0e4219	947	uint16_t cmd_pec;
roger5641	0:b2692e0e4219	948
roger5641	0:b2692e0e4219	949
roger5641	0:b2692e0e4219	950	if (reg == 1) //Read back auxiliary group A
roger5641	0:b2692e0e4219	951	{
roger5641	0:b2692e0e4219	952	cmd[1] = 0x0C;
roger5641	0:b2692e0e4219	953	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	954	}
roger5641	0:b2692e0e4219	955	else if (reg == 2) //Read back auxiliary group B
roger5641	0:b2692e0e4219	956	{
roger5641	0:b2692e0e4219	957	cmd[1] = 0x0e;
roger5641	0:b2692e0e4219	958	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	959	}
roger5641	0:b2692e0e4219	960	else if (reg == 3) //Read back auxiliary group C
roger5641	0:b2692e0e4219	961	{
roger5641	0:b2692e0e4219	962	cmd[1] = 0x0D;
roger5641	0:b2692e0e4219	963	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	964	}
roger5641	0:b2692e0e4219	965	else if (reg == 4) //Read back auxiliary group D
roger5641	0:b2692e0e4219	966	{
roger5641	0:b2692e0e4219	967	cmd[1] = 0x0F;
roger5641	0:b2692e0e4219	968	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	969	}
roger5641	0:b2692e0e4219	970	else //Read back auxiliary group A
roger5641	0:b2692e0e4219	971	{
roger5641	0:b2692e0e4219	972	cmd[1] = 0x0C;
roger5641	0:b2692e0e4219	973	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	974	}
roger5641	0:b2692e0e4219	975
roger5641	0:b2692e0e4219	976	cmd_pec = pec15_calc(2, cmd);
roger5641	0:b2692e0e4219	977	cmd[2] = (uint8_t)(cmd_pec >> 8);
roger5641	0:b2692e0e4219	978	cmd[3] = (uint8_t)(cmd_pec);
roger5641	0:b2692e0e4219	979
roger5641	0:b2692e0e4219	980	CS_PIN = 0;
roger5641	0:b2692e0e4219	981	spi_write_read(cmd,4,data,(REG_LEN*total_ic));
roger5641	0:b2692e0e4219	982	CS_PIN = 1;
roger5641	0:b2692e0e4219	983
roger5641	0:b2692e0e4219	984	}
roger5641	0:b2692e0e4219	985
roger5641	0:b2692e0e4219	986	/*
roger5641	0:b2692e0e4219	987	The function reads a single stat register and stores the read data
roger5641	0:b2692e0e4219	988	in the *data point as a byte array. This function is rarely used outside of
roger5641	0:b2692e0e4219	989	the LTC6811_rdstat() command.
roger5641	0:b2692e0e4219	990	*/
roger5641	0:b2692e0e4219	991	void LTC681x_rdstat_reg(uint8_t reg, //Determines which stat register is read back
roger5641	0:b2692e0e4219	992	uint8_t total_ic, //The number of ICs in the system
roger5641	0:b2692e0e4219	993	uint8_t *data //Array of the unparsed stat codes
roger5641	0:b2692e0e4219	994	)
roger5641	0:b2692e0e4219	995	{
roger5641	0:b2692e0e4219	996	const uint8_t REG_LEN = 8; // number of bytes in the register + 2 bytes for the PEC
roger5641	0:b2692e0e4219	997	uint8_t cmd[4];
roger5641	0:b2692e0e4219	998	uint16_t cmd_pec;
roger5641	0:b2692e0e4219	999
roger5641	0:b2692e0e4219	1000
roger5641	0:b2692e0e4219	1001	if (reg == 1) //Read back statiliary group A
roger5641	0:b2692e0e4219	1002	{
roger5641	0:b2692e0e4219	1003	cmd[1] = 0x10;
roger5641	0:b2692e0e4219	1004	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	1005	}
roger5641	0:b2692e0e4219	1006	else if (reg == 2) //Read back statiliary group B
roger5641	0:b2692e0e4219	1007	{
roger5641	0:b2692e0e4219	1008	cmd[1] = 0x12;
roger5641	0:b2692e0e4219	1009	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	1010	}
roger5641	0:b2692e0e4219	1011
roger5641	0:b2692e0e4219	1012	else //Read back statiliary group A
roger5641	0:b2692e0e4219	1013	{
roger5641	0:b2692e0e4219	1014	cmd[1] = 0x10;
roger5641	0:b2692e0e4219	1015	cmd[0] = 0x00;
roger5641	0:b2692e0e4219	1016	}
roger5641	0:b2692e0e4219	1017
roger5641	0:b2692e0e4219	1018	cmd_pec = pec15_calc(2, cmd);
roger5641	0:b2692e0e4219	1019	cmd[2] = (uint8_t)(cmd_pec >> 8);
roger5641	0:b2692e0e4219	1020	cmd[3] = (uint8_t)(cmd_pec);
roger5641	0:b2692e0e4219	1021
roger5641	0:b2692e0e4219	1022	CS_PIN = 0;
roger5641	0:b2692e0e4219	1023	spi_write_read(cmd,4,data,(REG_LEN*total_ic));
roger5641	0:b2692e0e4219	1024	CS_PIN = 1;
roger5641	0:b2692e0e4219	1025
roger5641	0:b2692e0e4219	1026	}
roger5641	0:b2692e0e4219	1027
roger5641	0:b2692e0e4219	1028	/*
roger5641	0:b2692e0e4219	1029	The command clears the cell voltage registers and intiallizes
roger5641	0:b2692e0e4219	1030	all values to 1. The register will read back hexadecimal 0xFF
roger5641	0:b2692e0e4219	1031	after the command is sent.
roger5641	0:b2692e0e4219	1032	*/
roger5641	0:b2692e0e4219	1033	void LTC681x_clrcell()
roger5641	0:b2692e0e4219	1034	{
roger5641	0:b2692e0e4219	1035	uint8_t cmd[2]= {0x07 , 0x11};
roger5641	0:b2692e0e4219	1036	cmd_68(cmd);
roger5641	0:b2692e0e4219	1037	}
roger5641	0:b2692e0e4219	1038
roger5641	0:b2692e0e4219	1039	/*
roger5641	0:b2692e0e4219	1040	The command clears the Auxiliary registers and initializes
roger5641	0:b2692e0e4219	1041	all values to 1. The register will read back hexadecimal 0xFF
roger5641	0:b2692e0e4219	1042	after the command is sent.
roger5641	0:b2692e0e4219	1043	*/
roger5641	0:b2692e0e4219	1044	void LTC681x_clraux()
roger5641	0:b2692e0e4219	1045	{
roger5641	0:b2692e0e4219	1046	uint8_t cmd[2]= {0x07 , 0x12};
roger5641	0:b2692e0e4219	1047	cmd_68(cmd);
roger5641	0:b2692e0e4219	1048	}
roger5641	0:b2692e0e4219	1049
roger5641	0:b2692e0e4219	1050
roger5641	0:b2692e0e4219	1051	/*
roger5641	0:b2692e0e4219	1052	The command clears the Stat registers and intiallizes
roger5641	0:b2692e0e4219	1053	all values to 1. The register will read back hexadecimal 0xFF
roger5641	0:b2692e0e4219	1054	after the command is sent.
roger5641	0:b2692e0e4219	1055
roger5641	0:b2692e0e4219	1056	*/
roger5641	0:b2692e0e4219	1057	void LTC681x_clrstat()
roger5641	0:b2692e0e4219	1058	{
roger5641	0:b2692e0e4219	1059	uint8_t cmd[2]= {0x07 , 0x13};
roger5641	0:b2692e0e4219	1060	cmd_68(cmd);
roger5641	0:b2692e0e4219	1061	}
roger5641	0:b2692e0e4219	1062
roger5641	0:b2692e0e4219	1063	//Starts the Mux Decoder diagnostic self test
roger5641	0:b2692e0e4219	1064	void LTC681x_diagn()
roger5641	0:b2692e0e4219	1065	{
roger5641	0:b2692e0e4219	1066	uint8_t cmd[2] = {0x07 , 0x15};
roger5641	0:b2692e0e4219	1067	cmd_68(cmd);
roger5641	0:b2692e0e4219	1068	}
roger5641	0:b2692e0e4219	1069
roger5641	0:b2692e0e4219	1070	//Reads and parses the LTC681x cell voltage registers.
roger5641	0:b2692e0e4219	1071	uint8_t LTC681x_rdcv(uint8_t reg, // Controls which cell voltage register is read back.
roger5641	0:b2692e0e4219	1072	uint8_t total_ic, // the number of ICs in the system
roger5641	0:b2692e0e4219	1073	cell_asic ic[] // Array of the parsed cell codes
roger5641	0:b2692e0e4219	1074	)
roger5641	0:b2692e0e4219	1075	{
roger5641	0:b2692e0e4219	1076	int8_t pec_error = 0;
roger5641	0:b2692e0e4219	1077	uint8_t *cell_data;
roger5641	0:b2692e0e4219	1078	uint8_t c_ic = 0;
roger5641	0:b2692e0e4219	1079	cell_data = (uint8_t ) malloc((NUM_RX_BYTtotal_ic)*sizeof(uint8_t));
roger5641	0:b2692e0e4219	1080
roger5641	0:b2692e0e4219	1081	if (reg == 0)
roger5641	0:b2692e0e4219	1082	{
roger5641	0:b2692e0e4219	1083	for (uint8_t cell_reg = 1; cell_reg<ic[0].ic_reg.num_cv_reg+1; cell_reg++) //executes once for each of the LTC6811 cell voltage registers
roger5641	0:b2692e0e4219	1084	{
roger5641	0:b2692e0e4219	1085	LTC681x_rdcv_reg(cell_reg, total_ic,cell_data );
roger5641	0:b2692e0e4219	1086	for (int current_ic = 0; current_ic<total_ic; current_ic++)
roger5641	0:b2692e0e4219	1087	{
roger5641	0:b2692e0e4219	1088	if (ic->isospi_reverse == false)
roger5641	0:b2692e0e4219	1089	{
roger5641	0:b2692e0e4219	1090	c_ic = current_ic;
roger5641	0:b2692e0e4219	1091	}
roger5641	0:b2692e0e4219	1092	else
roger5641	0:b2692e0e4219	1093	{
roger5641	0:b2692e0e4219	1094	c_ic = total_ic - current_ic - 1;
roger5641	0:b2692e0e4219	1095	}
roger5641	0:b2692e0e4219	1096	pec_error = pec_error + parse_cells(current_ic,cell_reg, cell_data,
roger5641	0:b2692e0e4219	1097	&ic[c_ic].cells.c_codes[0],
roger5641	0:b2692e0e4219	1098	&ic[c_ic].cells.pec_match[0]);
roger5641	0:b2692e0e4219	1099	}
roger5641	0:b2692e0e4219	1100	}
roger5641	0:b2692e0e4219	1101	}
roger5641	0:b2692e0e4219	1102
roger5641	0:b2692e0e4219	1103	else
roger5641	0:b2692e0e4219	1104	{
roger5641	0:b2692e0e4219	1105	LTC681x_rdcv_reg(reg, total_ic,cell_data);
roger5641	0:b2692e0e4219	1106
roger5641	0:b2692e0e4219	1107	for (int current_ic = 0; current_ic<total_ic; current_ic++)
roger5641	0:b2692e0e4219	1108	{
roger5641	0:b2692e0e4219	1109	if (ic->isospi_reverse == false)
roger5641	0:b2692e0e4219	1110	{
roger5641	0:b2692e0e4219	1111	c_ic = current_ic;
roger5641	0:b2692e0e4219	1112	}
roger5641	0:b2692e0e4219	1113	else
roger5641	0:b2692e0e4219	1114	{
roger5641	0:b2692e0e4219	1115	c_ic = total_ic - current_ic - 1;
roger5641	0:b2692e0e4219	1116	}
roger5641	0:b2692e0e4219	1117	pec_error = pec_error + parse_cells(current_ic,reg, &cell_data[8*c_ic],
roger5641	0:b2692e0e4219	1118	&ic[c_ic].cells.c_codes[0],
roger5641	0:b2692e0e4219	1119	&ic[c_ic].cells.pec_match[0]);
roger5641	0:b2692e0e4219	1120	}
roger5641	0:b2692e0e4219	1121	}
roger5641	0:b2692e0e4219	1122	LTC681x_check_pec(total_ic,CELL,ic);
roger5641	0:b2692e0e4219	1123	free(cell_data);
roger5641	0:b2692e0e4219	1124	return(pec_error);
roger5641	0:b2692e0e4219	1125	}
roger5641	0:b2692e0e4219	1126
roger5641	0:b2692e0e4219	1127	//helper function that parses voltage measurement registers
roger5641	0:b2692e0e4219	1128	int8_t parse_cells(uint8_t current_ic, uint8_t cell_reg, uint8_t cell_data[], uint16_t cell_codes, uint8_t ic_pec)
roger5641	0:b2692e0e4219	1129	{
roger5641	0:b2692e0e4219	1130
roger5641	0:b2692e0e4219	1131	const uint8_t BYT_IN_REG = 6;
roger5641	0:b2692e0e4219	1132	const uint8_t CELL_IN_REG = 3;
roger5641	0:b2692e0e4219	1133	int8_t pec_error = 0;
roger5641	0:b2692e0e4219	1134	uint16_t parsed_cell;
roger5641	0:b2692e0e4219	1135	uint16_t received_pec;
roger5641	0:b2692e0e4219	1136	uint16_t data_pec;
roger5641	0:b2692e0e4219	1137	uint8_t data_counter = current_ic*NUM_RX_BYT; //data counter
roger5641	0:b2692e0e4219	1138
roger5641	0:b2692e0e4219	1139
roger5641	0:b2692e0e4219	1140	for (uint8_t current_cell = 0; current_cell<CELL_IN_REG; current_cell++) // This loop parses the read back data into cell voltages, it
roger5641	0:b2692e0e4219	1141	{
roger5641	0:b2692e0e4219	1142	// loops once for each of the 3 cell voltage codes in the register
roger5641	0:b2692e0e4219	1143
roger5641	0:b2692e0e4219	1144	parsed_cell = cell_data[data_counter] + (cell_data[data_counter + 1] << 8);//Each cell code is received as two bytes and is combined to
roger5641	0:b2692e0e4219	1145	// create the parsed cell voltage code
roger5641	0:b2692e0e4219	1146	cell_codes[current_cell + ((cell_reg - 1) * CELL_IN_REG)] = parsed_cell;
roger5641	0:b2692e0e4219	1147	data_counter = data_counter + 2; //Because cell voltage codes are two bytes the data counter
roger5641	0:b2692e0e4219	1148	//must increment by two for each parsed cell code
roger5641	0:b2692e0e4219	1149	}
roger5641	0:b2692e0e4219	1150
roger5641	0:b2692e0e4219	1151	received_pec = (cell_data[data_counter] << 8) \| cell_data[data_counter+1]; //The received PEC for the current_ic is transmitted as the 7th and 8th
roger5641	0:b2692e0e4219	1152	//after the 6 cell voltage data bytes
roger5641	0:b2692e0e4219	1153	data_pec = pec15_calc(BYT_IN_REG, &cell_data[(current_ic) * NUM_RX_BYT]);
roger5641	0:b2692e0e4219	1154
roger5641	0:b2692e0e4219	1155	if (received_pec != data_pec)
roger5641	0:b2692e0e4219	1156	{
roger5641	0:b2692e0e4219	1157	pec_error = 1; //The pec_error variable is simply set negative if any PEC errors
roger5641	0:b2692e0e4219	1158	ic_pec[cell_reg-1]=1;
roger5641	0:b2692e0e4219	1159	}
roger5641	0:b2692e0e4219	1160	else
roger5641	0:b2692e0e4219	1161	{
roger5641	0:b2692e0e4219	1162	ic_pec[cell_reg-1]=0;
roger5641	0:b2692e0e4219	1163	}
roger5641	0:b2692e0e4219	1164	data_counter=data_counter+2;
roger5641	0:b2692e0e4219	1165	return(pec_error);
roger5641	0:b2692e0e4219	1166	}
roger5641	0:b2692e0e4219	1167
roger5641	0:b2692e0e4219	1168	/*
roger5641	0:b2692e0e4219	1169	The function is used
roger5641	0:b2692e0e4219	1170	to read the parsed GPIO codes of the LTC6811. This function will send the requested
roger5641	0:b2692e0e4219	1171	read commands parse the data and store the gpio voltages in aux_codes variable
roger5641	0:b2692e0e4219	1172	*/
roger5641	0:b2692e0e4219	1173	int8_t LTC681x_rdaux(uint8_t reg, //Determines which GPIO voltage register is read back.
roger5641	0:b2692e0e4219	1174	uint8_t total_ic,//the number of ICs in the system
roger5641	0:b2692e0e4219	1175	cell_asic ic[]//A two dimensional array of the gpio voltage codes.
roger5641	0:b2692e0e4219	1176	)
roger5641	0:b2692e0e4219	1177	{
roger5641	0:b2692e0e4219	1178	uint8_t *data;
roger5641	0:b2692e0e4219	1179	int8_t pec_error = 0;
roger5641	0:b2692e0e4219	1180	uint8_t c_ic =0;
roger5641	0:b2692e0e4219	1181	data = (uint8_t ) malloc((NUM_RX_BYTtotal_ic)*sizeof(uint8_t));
roger5641	0:b2692e0e4219	1182
roger5641	0:b2692e0e4219	1183	if (reg == 0)
roger5641	0:b2692e0e4219	1184	{
roger5641	0:b2692e0e4219	1185	for (uint8_t gpio_reg = 1; gpio_reg<ic[0].ic_reg.num_gpio_reg+1; gpio_reg++) //executes once for each of the LTC6811 aux voltage registers
roger5641	0:b2692e0e4219	1186	{
roger5641	0:b2692e0e4219	1187	LTC681x_rdaux_reg(gpio_reg, total_ic,data); //Reads the raw auxiliary register data into the data[] array
roger5641	0:b2692e0e4219	1188	for (int current_ic = 0; current_ic<total_ic; current_ic++)
roger5641	0:b2692e0e4219	1189	{
roger5641	0:b2692e0e4219	1190	if (ic->isospi_reverse == false)
roger5641	0:b2692e0e4219	1191	{
roger5641	0:b2692e0e4219	1192	c_ic = current_ic;
roger5641	0:b2692e0e4219	1193	}
roger5641	0:b2692e0e4219	1194	else
roger5641	0:b2692e0e4219	1195	{
roger5641	0:b2692e0e4219	1196	c_ic = total_ic - current_ic - 1;
roger5641	0:b2692e0e4219	1197	}
roger5641	0:b2692e0e4219	1198	pec_error = parse_cells(current_ic,gpio_reg, data,
roger5641	0:b2692e0e4219	1199	&ic[c_ic].aux.a_codes[0],
roger5641	0:b2692e0e4219	1200	&ic[c_ic].aux.pec_match[0]);
roger5641	0:b2692e0e4219	1201
roger5641	0:b2692e0e4219	1202	}
roger5641	0:b2692e0e4219	1203	}
roger5641	0:b2692e0e4219	1204	}
roger5641	0:b2692e0e4219	1205	else
roger5641	0:b2692e0e4219	1206	{
roger5641	0:b2692e0e4219	1207	LTC681x_rdaux_reg(reg, total_ic, data);
roger5641	0:b2692e0e4219	1208
roger5641	0:b2692e0e4219	1209	for (int current_ic = 0; current_ic<total_ic; current_ic++)
roger5641	0:b2692e0e4219	1210	{
roger5641	0:b2692e0e4219	1211	if (ic->isospi_reverse == false)
roger5641	0:b2692e0e4219	1212	{
roger5641	0:b2692e0e4219	1213	c_ic = current_ic;
roger5641	0:b2692e0e4219	1214	}
roger5641	0:b2692e0e4219	1215	else
roger5641	0:b2692e0e4219	1216	{
roger5641	0:b2692e0e4219	1217	c_ic = total_ic - current_ic - 1;
roger5641	0:b2692e0e4219	1218	}
roger5641	0:b2692e0e4219	1219	pec_error = parse_cells(current_ic,reg, data,
roger5641	0:b2692e0e4219	1220	&ic[c_ic].aux.a_codes[0],
roger5641	0:b2692e0e4219	1221	&ic[c_ic].aux.pec_match[0]);
roger5641	0:b2692e0e4219	1222	}
roger5641	0:b2692e0e4219	1223
roger5641	0:b2692e0e4219	1224	}
roger5641	0:b2692e0e4219	1225	LTC681x_check_pec(total_ic,AUX,ic);
roger5641	0:b2692e0e4219	1226	free(data);
roger5641	0:b2692e0e4219	1227	return (pec_error);
roger5641	0:b2692e0e4219	1228	}
roger5641	0:b2692e0e4219	1229
roger5641	0:b2692e0e4219	1230	// Reads and parses the LTC681x stat registers.
roger5641	0:b2692e0e4219	1231	int8_t LTC681x_rdstat(uint8_t reg, //Determines which Stat register is read back.
roger5641	0:b2692e0e4219	1232	uint8_t total_ic,//the number of ICs in the system
roger5641	0:b2692e0e4219	1233	cell_asic ic[]
roger5641	0:b2692e0e4219	1234	)
roger5641	0:b2692e0e4219	1235
roger5641	0:b2692e0e4219	1236	{
roger5641	0:b2692e0e4219	1237
roger5641	0:b2692e0e4219	1238	const uint8_t BYT_IN_REG = 6;
roger5641	0:b2692e0e4219	1239	const uint8_t GPIO_IN_REG = 3;
roger5641	0:b2692e0e4219	1240
roger5641	0:b2692e0e4219	1241	uint8_t *data;
roger5641	0:b2692e0e4219	1242	uint8_t data_counter = 0;
roger5641	0:b2692e0e4219	1243	int8_t pec_error = 0;
roger5641	0:b2692e0e4219	1244	uint16_t parsed_stat;
roger5641	0:b2692e0e4219	1245	uint16_t received_pec;
roger5641	0:b2692e0e4219	1246	uint16_t data_pec;
roger5641	0:b2692e0e4219	1247	uint8_t c_ic = 0;
roger5641	0:b2692e0e4219	1248	data = (uint8_t ) malloc((NUM_RX_BYTtotal_ic)*sizeof(uint8_t));
roger5641	0:b2692e0e4219	1249
roger5641	0:b2692e0e4219	1250	if (reg == 0)
roger5641	0:b2692e0e4219	1251	{
roger5641	0:b2692e0e4219	1252
roger5641	0:b2692e0e4219	1253	for (uint8_t stat_reg = 1; stat_reg< 3; stat_reg++) //executes once for each of the LTC6811 stat voltage registers
roger5641	0:b2692e0e4219	1254	{
roger5641	0:b2692e0e4219	1255	data_counter = 0;
roger5641	0:b2692e0e4219	1256	LTC681x_rdstat_reg(stat_reg, total_ic,data); //Reads the raw statiliary register data into the data[] array
roger5641	0:b2692e0e4219	1257
roger5641	0:b2692e0e4219	1258	for (uint8_t current_ic = 0 ; current_ic < total_ic; current_ic++) // executes for every LTC6811 in the daisy chain
roger5641	0:b2692e0e4219	1259	{
roger5641	0:b2692e0e4219	1260	if (ic->isospi_reverse == false)
roger5641	0:b2692e0e4219	1261	{
roger5641	0:b2692e0e4219	1262	c_ic = current_ic;
roger5641	0:b2692e0e4219	1263	}
roger5641	0:b2692e0e4219	1264	else
roger5641	0:b2692e0e4219	1265	{
roger5641	0:b2692e0e4219	1266	c_ic = total_ic - current_ic - 1;
roger5641	0:b2692e0e4219	1267	}
roger5641	0:b2692e0e4219	1268	// current_ic is used as the IC counter
roger5641	0:b2692e0e4219	1269	if (stat_reg ==1)
roger5641	0:b2692e0e4219	1270	{
roger5641	0:b2692e0e4219	1271	for (uint8_t current_gpio = 0; current_gpio< GPIO_IN_REG; current_gpio++) // This loop parses the read back data into GPIO voltages, it
roger5641	0:b2692e0e4219	1272	{
roger5641	0:b2692e0e4219	1273	// loops once for each of the 3 gpio voltage codes in the register
roger5641	0:b2692e0e4219	1274
roger5641	0:b2692e0e4219	1275	parsed_stat = data[data_counter] + (data[data_counter+1]<<8); //Each gpio codes is received as two bytes and is combined to
roger5641	0:b2692e0e4219	1276	ic[c_ic].stat.stat_codes[current_gpio] = parsed_stat;
roger5641	0:b2692e0e4219	1277	data_counter=data_counter+2; //Because gpio voltage codes are two bytes the data counter
roger5641	0:b2692e0e4219	1278
roger5641	0:b2692e0e4219	1279	}
roger5641	0:b2692e0e4219	1280	}
roger5641	0:b2692e0e4219	1281	else if (stat_reg == 2)
roger5641	0:b2692e0e4219	1282	{
roger5641	0:b2692e0e4219	1283	parsed_stat = data[data_counter] + (data[data_counter+1]<<8); //Each gpio codes is received as two bytes and is combined to
roger5641	0:b2692e0e4219	1284	data_counter = data_counter +2;
roger5641	0:b2692e0e4219	1285	ic[c_ic].stat.stat_codes[3] = parsed_stat;
roger5641	0:b2692e0e4219	1286	ic[c_ic].stat.flags[0] = data[data_counter++];
roger5641	0:b2692e0e4219	1287	ic[c_ic].stat.flags[1] = data[data_counter++];
roger5641	0:b2692e0e4219	1288	ic[c_ic].stat.flags[2] = data[data_counter++];
roger5641	0:b2692e0e4219	1289	ic[c_ic].stat.mux_fail[0] = (data[data_counter] & 0x02)>>1;
roger5641	0:b2692e0e4219	1290	ic[c_ic].stat.thsd[0] = data[data_counter++] & 0x01;
roger5641	0:b2692e0e4219	1291	}
roger5641	0:b2692e0e4219	1292
roger5641	0:b2692e0e4219	1293	received_pec = (data[data_counter]<<8)+ data[data_counter+1]; //The received PEC for the current_ic is transmitted as the 7th and 8th
roger5641	0:b2692e0e4219	1294	//after the 6 gpio voltage data bytes
roger5641	0:b2692e0e4219	1295	data_pec = pec15_calc(BYT_IN_REG, &data[current_ic*NUM_RX_BYT]);
roger5641	0:b2692e0e4219	1296
roger5641	0:b2692e0e4219	1297	if (received_pec != data_pec)
roger5641	0:b2692e0e4219	1298	{
roger5641	0:b2692e0e4219	1299	pec_error = -1; //The pec_error variable is simply set negative if any PEC errors
roger5641	0:b2692e0e4219	1300	ic[c_ic].stat.pec_match[stat_reg-1]=1;
roger5641	0:b2692e0e4219	1301	//are detected in the received serial data
roger5641	0:b2692e0e4219	1302	}
roger5641	0:b2692e0e4219	1303	else
roger5641	0:b2692e0e4219	1304	{
roger5641	0:b2692e0e4219	1305	ic[c_ic].stat.pec_match[stat_reg-1]=0;
roger5641	0:b2692e0e4219	1306	}
roger5641	0:b2692e0e4219	1307
roger5641	0:b2692e0e4219	1308	data_counter=data_counter+2; //Because the transmitted PEC code is 2 bytes long the data_counter
roger5641	0:b2692e0e4219	1309	//must be incremented by 2 bytes to point to the next ICs gpio voltage data
roger5641	0:b2692e0e4219	1310	}
roger5641	0:b2692e0e4219	1311
roger5641	0:b2692e0e4219	1312
roger5641	0:b2692e0e4219	1313	}
roger5641	0:b2692e0e4219	1314
roger5641	0:b2692e0e4219	1315	}
roger5641	0:b2692e0e4219	1316	else
roger5641	0:b2692e0e4219	1317	{
roger5641	0:b2692e0e4219	1318
roger5641	0:b2692e0e4219	1319	LTC681x_rdstat_reg(reg, total_ic, data);
roger5641	0:b2692e0e4219	1320	for (int current_ic = 0 ; current_ic < total_ic; current_ic++) // executes for every LTC6811 in the daisy chain
roger5641	0:b2692e0e4219	1321	{
roger5641	0:b2692e0e4219	1322	// current_ic is used as an IC counter
roger5641	0:b2692e0e4219	1323	if (ic->isospi_reverse == false)
roger5641	0:b2692e0e4219	1324	{
roger5641	0:b2692e0e4219	1325	c_ic = current_ic;
roger5641	0:b2692e0e4219	1326	}
roger5641	0:b2692e0e4219	1327	else
roger5641	0:b2692e0e4219	1328	{
roger5641	0:b2692e0e4219	1329	c_ic = total_ic - current_ic - 1;
roger5641	0:b2692e0e4219	1330	}
roger5641	0:b2692e0e4219	1331	if (reg ==1)
roger5641	0:b2692e0e4219	1332	{
roger5641	0:b2692e0e4219	1333	for (uint8_t current_gpio = 0; current_gpio< GPIO_IN_REG; current_gpio++) // This loop parses the read back data into GPIO voltages, it
roger5641	0:b2692e0e4219	1334	{
roger5641	0:b2692e0e4219	1335	// loops once for each of the 3 gpio voltage codes in the register
roger5641	0:b2692e0e4219	1336	parsed_stat = data[data_counter] + (data[data_counter+1]<<8); //Each gpio codes is received as two bytes and is combined to
roger5641	0:b2692e0e4219	1337	// create the parsed gpio voltage code
roger5641	0:b2692e0e4219	1338
roger5641	0:b2692e0e4219	1339	ic[c_ic].stat.stat_codes[current_gpio] = parsed_stat;
roger5641	0:b2692e0e4219	1340	data_counter=data_counter+2; //Because gpio voltage codes are two bytes the data counter
roger5641	0:b2692e0e4219	1341	//must increment by two for each parsed gpio voltage code
roger5641	0:b2692e0e4219	1342
roger5641	0:b2692e0e4219	1343	}
roger5641	0:b2692e0e4219	1344	}
roger5641	0:b2692e0e4219	1345	else if (reg == 2)
roger5641	0:b2692e0e4219	1346	{
roger5641	0:b2692e0e4219	1347	parsed_stat = data[data_counter++] + (data[data_counter++]<<8); //Each gpio codes is received as two bytes and is combined to
roger5641	0:b2692e0e4219	1348	ic[c_ic].stat.stat_codes[3] = parsed_stat;
roger5641	0:b2692e0e4219	1349	ic[c_ic].stat.flags[0] = data[data_counter++];
roger5641	0:b2692e0e4219	1350	ic[c_ic].stat.flags[1] = data[data_counter++];
roger5641	0:b2692e0e4219	1351	ic[c_ic].stat.flags[2] = data[data_counter++];
roger5641	0:b2692e0e4219	1352	ic[c_ic].stat.mux_fail[0] = (data[data_counter] & 0x02)>>1;
roger5641	0:b2692e0e4219	1353	ic[c_ic].stat.thsd[0] = data[data_counter++] & 0x01;
roger5641	0:b2692e0e4219	1354	}
roger5641	0:b2692e0e4219	1355
roger5641	0:b2692e0e4219	1356
roger5641	0:b2692e0e4219	1357	received_pec = (data[data_counter]<<8)+ data[data_counter+1]; //The received PEC for the current_ic is transmitted as the 7th and 8th
roger5641	0:b2692e0e4219	1358	//after the 6 gpio voltage data bytes
roger5641	0:b2692e0e4219	1359	data_pec = pec15_calc(BYT_IN_REG, &data[current_ic*NUM_RX_BYT]);
roger5641	0:b2692e0e4219	1360	if (received_pec != data_pec)
roger5641	0:b2692e0e4219	1361	{
roger5641	0:b2692e0e4219	1362	pec_error = -1; //The pec_error variable is simply set negative if any PEC errors
roger5641	0:b2692e0e4219	1363	ic[c_ic].stat.pec_match[reg-1]=1;
roger5641	0:b2692e0e4219	1364
roger5641	0:b2692e0e4219	1365	}
roger5641	0:b2692e0e4219	1366
roger5641	0:b2692e0e4219	1367	data_counter=data_counter+2;
roger5641	0:b2692e0e4219	1368	}
roger5641	0:b2692e0e4219	1369	}
roger5641	0:b2692e0e4219	1370	LTC681x_check_pec(total_ic,STAT,ic);
roger5641	0:b2692e0e4219	1371	free(data);
roger5641	0:b2692e0e4219	1372	return (pec_error);
roger5641	0:b2692e0e4219	1373	}
roger5641	0:b2692e0e4219	1374
roger5641	0:b2692e0e4219	1375	//Write the LTC681x CFGRA
roger5641	0:b2692e0e4219	1376	void LTC681x_wrcfg(uint8_t total_ic, //The number of ICs being written to
roger5641	0:b2692e0e4219	1377	cell_asic ic[]
roger5641	0:b2692e0e4219	1378	)
roger5641	0:b2692e0e4219	1379	{
roger5641	0:b2692e0e4219	1380	uint8_t cmd[2] = {0x00 , 0x01} ;
roger5641	0:b2692e0e4219	1381	uint8_t write_buffer[256];
roger5641	0:b2692e0e4219	1382	uint8_t write_count = 0;
roger5641	0:b2692e0e4219	1383	uint8_t c_ic = 0;
roger5641	0:b2692e0e4219	1384	for (uint8_t current_ic = 0; current_ic<total_ic; current_ic++)
roger5641	0:b2692e0e4219	1385	{
roger5641	0:b2692e0e4219	1386	if (ic->isospi_reverse == true)
roger5641	0:b2692e0e4219	1387	{
roger5641	0:b2692e0e4219	1388	c_ic = current_ic;
roger5641	0:b2692e0e4219	1389	}
roger5641	0:b2692e0e4219	1390	else
roger5641	0:b2692e0e4219	1391	{
roger5641	0:b2692e0e4219	1392	c_ic = total_ic - current_ic - 1;
roger5641	0:b2692e0e4219	1393	}
roger5641	0:b2692e0e4219	1394
roger5641	0:b2692e0e4219	1395	for (uint8_t data = 0; data<6; data++)
roger5641	0:b2692e0e4219	1396	{
roger5641	0:b2692e0e4219	1397	write_buffer[write_count] = ic[c_ic].config.tx_data[data];
roger5641	0:b2692e0e4219	1398	write_count++;
roger5641	0:b2692e0e4219	1399	}
roger5641	0:b2692e0e4219	1400	}
roger5641	0:b2692e0e4219	1401	write_68(total_ic, cmd, write_buffer);
roger5641	0:b2692e0e4219	1402	}
roger5641	0:b2692e0e4219	1403
roger5641	0:b2692e0e4219	1404	//Read CFGA
roger5641	0:b2692e0e4219	1405	int8_t LTC681x_rdcfg(uint8_t total_ic, //Number of ICs in the system
roger5641	0:b2692e0e4219	1406	cell_asic ic[]
roger5641	0:b2692e0e4219	1407	)
roger5641	0:b2692e0e4219	1408	{
roger5641	0:b2692e0e4219	1409	uint8_t cmd[2]= {0x00 , 0x02};
roger5641	0:b2692e0e4219	1410	uint8_t read_buffer[256];
roger5641	0:b2692e0e4219	1411	int8_t pec_error = 0;
roger5641	0:b2692e0e4219	1412	uint16_t data_pec;
roger5641	0:b2692e0e4219	1413	uint16_t calc_pec;
roger5641	0:b2692e0e4219	1414	uint8_t c_ic = 0;
roger5641	0:b2692e0e4219	1415	pec_error = read_68(total_ic, cmd, read_buffer);
roger5641	0:b2692e0e4219	1416	for (uint8_t current_ic = 0; current_ic<total_ic; current_ic++)
roger5641	0:b2692e0e4219	1417	{
roger5641	0:b2692e0e4219	1418	if (ic->isospi_reverse == false)
roger5641	0:b2692e0e4219	1419	{
roger5641	0:b2692e0e4219	1420	c_ic = current_ic;
roger5641	0:b2692e0e4219	1421	}
roger5641	0:b2692e0e4219	1422	else
roger5641	0:b2692e0e4219	1423	{
roger5641	0:b2692e0e4219	1424	c_ic = total_ic - current_ic - 1;
roger5641	0:b2692e0e4219	1425	}
roger5641	0:b2692e0e4219	1426
roger5641	0:b2692e0e4219	1427	for (int byte=0; byte<8; byte++)
roger5641	0:b2692e0e4219	1428	{
roger5641	0:b2692e0e4219	1429	ic[c_ic].config.rx_data[byte] = read_buffer[byte+(8*current_ic)];
roger5641	0:b2692e0e4219	1430	}
roger5641	0:b2692e0e4219	1431	calc_pec = pec15_calc(6,&read_buffer[8*current_ic]);
roger5641	0:b2692e0e4219	1432	data_pec = read_buffer[7+(8current_ic)] \| (read_buffer[6+(8current_ic)]<<8);
roger5641	0:b2692e0e4219	1433	if (calc_pec != data_pec )
roger5641	0:b2692e0e4219	1434	{
roger5641	0:b2692e0e4219	1435	ic[c_ic].config.rx_pec_match = 1;
roger5641	0:b2692e0e4219	1436	}
roger5641	0:b2692e0e4219	1437	else ic[c_ic].config.rx_pec_match = 0;
roger5641	0:b2692e0e4219	1438	}
roger5641	0:b2692e0e4219	1439	LTC681x_check_pec(total_ic,CFGR,ic);
roger5641	0:b2692e0e4219	1440	return(pec_error);
roger5641	0:b2692e0e4219	1441	}
roger5641	0:b2692e0e4219	1442
roger5641	0:b2692e0e4219	1443	//Looks up the result pattern for digital filter self test
roger5641	0:b2692e0e4219	1444	uint16_t LTC681x_st_lookup(
roger5641	0:b2692e0e4219	1445	uint8_t MD, //ADC Mode
roger5641	0:b2692e0e4219	1446	uint8_t ST //Self Test
roger5641	0:b2692e0e4219	1447	)
roger5641	0:b2692e0e4219	1448	{
roger5641	0:b2692e0e4219	1449	uint16_t test_pattern = 0;
roger5641	0:b2692e0e4219	1450	if (MD == 1)
roger5641	0:b2692e0e4219	1451	{
roger5641	0:b2692e0e4219	1452	if (ST == 1)
roger5641	0:b2692e0e4219	1453	{
roger5641	0:b2692e0e4219	1454	test_pattern = 0x9565;
roger5641	0:b2692e0e4219	1455	}
roger5641	0:b2692e0e4219	1456	else
roger5641	0:b2692e0e4219	1457	{
roger5641	0:b2692e0e4219	1458	test_pattern = 0x6A9A;
roger5641	0:b2692e0e4219	1459	}
roger5641	0:b2692e0e4219	1460	}
roger5641	0:b2692e0e4219	1461	else
roger5641	0:b2692e0e4219	1462	{
roger5641	0:b2692e0e4219	1463	if (ST == 1)
roger5641	0:b2692e0e4219	1464	{
roger5641	0:b2692e0e4219	1465	test_pattern = 0x9555;
roger5641	0:b2692e0e4219	1466	}
roger5641	0:b2692e0e4219	1467	else
roger5641	0:b2692e0e4219	1468	{
roger5641	0:b2692e0e4219	1469	test_pattern = 0x6AAA;
roger5641	0:b2692e0e4219	1470	}
roger5641	0:b2692e0e4219	1471	}
roger5641	0:b2692e0e4219	1472	return(test_pattern);
roger5641	0:b2692e0e4219	1473	}
roger5641	0:b2692e0e4219	1474
roger5641	0:b2692e0e4219	1475	//Clears all of the DCC bits in the configuration registers
roger5641	0:b2692e0e4219	1476	void clear_discharge(uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1477	{
roger5641	0:b2692e0e4219	1478	for (int i=0; i<total_ic; i++)
roger5641	0:b2692e0e4219	1479	{
roger5641	0:b2692e0e4219	1480	ic[i].config.tx_data[4] = 0;
roger5641	0:b2692e0e4219	1481	ic[i].config.tx_data[5] = 0;
roger5641	0:b2692e0e4219	1482	}
roger5641	0:b2692e0e4219	1483	}
roger5641	0:b2692e0e4219	1484
roger5641	0:b2692e0e4219	1485	// Runs the Digital Filter Self Test
roger5641	0:b2692e0e4219	1486	int16_t LTC681x_run_cell_adc_st(uint8_t adc_reg,uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1487	{
roger5641	0:b2692e0e4219	1488	int16_t error = 0;
roger5641	0:b2692e0e4219	1489	uint16_t expected_result = 0;
roger5641	0:b2692e0e4219	1490	for (int self_test = 1; self_test<3; self_test++)
roger5641	0:b2692e0e4219	1491	{
roger5641	0:b2692e0e4219	1492
roger5641	0:b2692e0e4219	1493	expected_result = LTC681x_st_lookup(2,self_test);
roger5641	0:b2692e0e4219	1494	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1495	switch (adc_reg)
roger5641	0:b2692e0e4219	1496	{
roger5641	0:b2692e0e4219	1497	case CELL:
roger5641	0:b2692e0e4219	1498	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1499	LTC681x_clrcell();
roger5641	0:b2692e0e4219	1500	LTC681x_cvst(2,self_test);
roger5641	0:b2692e0e4219	1501	LTC681x_pollAdc();//this isn't working
roger5641	0:b2692e0e4219	1502	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1503	error = LTC681x_rdcv(0, total_ic,ic);
roger5641	0:b2692e0e4219	1504	for (int cic = 0; cic < total_ic; cic++)
roger5641	0:b2692e0e4219	1505	{
roger5641	0:b2692e0e4219	1506	for (int channel=0; channel< ic[cic].ic_reg.cell_channels; channel++)
roger5641	0:b2692e0e4219	1507	{
roger5641	0:b2692e0e4219	1508	if (ic[cic].cells.c_codes[channel] != expected_result)
roger5641	0:b2692e0e4219	1509	{
roger5641	0:b2692e0e4219	1510	error = error+1;
roger5641	0:b2692e0e4219	1511	}
roger5641	0:b2692e0e4219	1512	}
roger5641	0:b2692e0e4219	1513	}
roger5641	0:b2692e0e4219	1514	break;
roger5641	0:b2692e0e4219	1515	case AUX:
roger5641	0:b2692e0e4219	1516	error = 0;
roger5641	0:b2692e0e4219	1517	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1518	LTC681x_clraux();
roger5641	0:b2692e0e4219	1519	LTC681x_axst(2,self_test);
roger5641	0:b2692e0e4219	1520	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1521	wait_ms(10);
roger5641	0:b2692e0e4219	1522	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1523	LTC681x_rdaux(0, total_ic,ic);
roger5641	0:b2692e0e4219	1524	for (int cic = 0; cic < total_ic; cic++)
roger5641	0:b2692e0e4219	1525	{
roger5641	0:b2692e0e4219	1526	for (int channel=0; channel< ic[cic].ic_reg.aux_channels; channel++)
roger5641	0:b2692e0e4219	1527	{
roger5641	0:b2692e0e4219	1528	if (ic[cic].aux.a_codes[channel] != expected_result)
roger5641	0:b2692e0e4219	1529	{
roger5641	0:b2692e0e4219	1530	error = error+1;
roger5641	0:b2692e0e4219	1531	}
roger5641	0:b2692e0e4219	1532	}
roger5641	0:b2692e0e4219	1533	}
roger5641	0:b2692e0e4219	1534	break;
roger5641	0:b2692e0e4219	1535	case STAT:
roger5641	0:b2692e0e4219	1536	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1537	LTC681x_clrstat();
roger5641	0:b2692e0e4219	1538	LTC681x_statst(2,self_test);
roger5641	0:b2692e0e4219	1539	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1540	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1541	error = LTC681x_rdstat(0,total_ic,ic);
roger5641	0:b2692e0e4219	1542	for (int cic = 0; cic < total_ic; cic++)
roger5641	0:b2692e0e4219	1543	{
roger5641	0:b2692e0e4219	1544	for (int channel=0; channel< ic[cic].ic_reg.stat_channels; channel++)
roger5641	0:b2692e0e4219	1545	{
roger5641	0:b2692e0e4219	1546	if (ic[cic].stat.stat_codes[channel] != expected_result)
roger5641	0:b2692e0e4219	1547	{
roger5641	0:b2692e0e4219	1548	error = error+1;
roger5641	0:b2692e0e4219	1549	}
roger5641	0:b2692e0e4219	1550	}
roger5641	0:b2692e0e4219	1551	}
roger5641	0:b2692e0e4219	1552	break;
roger5641	0:b2692e0e4219	1553
roger5641	0:b2692e0e4219	1554	default:
roger5641	0:b2692e0e4219	1555	error = -1;
roger5641	0:b2692e0e4219	1556	break;
roger5641	0:b2692e0e4219	1557	}
roger5641	0:b2692e0e4219	1558	}
roger5641	0:b2692e0e4219	1559	return(error);
roger5641	0:b2692e0e4219	1560	}
roger5641	0:b2692e0e4219	1561
roger5641	0:b2692e0e4219	1562	//runs the redundancy self test
roger5641	0:b2692e0e4219	1563	int16_t LTC681x_run_adc_redundancy_st(uint8_t adc_mode, uint8_t adc_reg, uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1564	{
roger5641	0:b2692e0e4219	1565	int16_t error = 0;
roger5641	0:b2692e0e4219	1566	for (int self_test = 1; self_test<3; self_test++)
roger5641	0:b2692e0e4219	1567	{
roger5641	0:b2692e0e4219	1568	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1569	switch (adc_reg)
roger5641	0:b2692e0e4219	1570	{
roger5641	0:b2692e0e4219	1571	case AUX:
roger5641	0:b2692e0e4219	1572	LTC681x_clraux();
roger5641	0:b2692e0e4219	1573	LTC681x_adaxd(adc_mode,AUX_CH_ALL);
roger5641	0:b2692e0e4219	1574	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1575	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1576	error = LTC681x_rdaux(0, total_ic,ic);
roger5641	0:b2692e0e4219	1577	for (int cic = 0; cic < total_ic; cic++)
roger5641	0:b2692e0e4219	1578	{
roger5641	0:b2692e0e4219	1579	for (int channel=0; channel< ic[cic].ic_reg.aux_channels; channel++)
roger5641	0:b2692e0e4219	1580	{
roger5641	0:b2692e0e4219	1581	if (ic[cic].aux.a_codes[channel] >= 65280)
roger5641	0:b2692e0e4219	1582	{
roger5641	0:b2692e0e4219	1583	error = error+1;
roger5641	0:b2692e0e4219	1584	}
roger5641	0:b2692e0e4219	1585	}
roger5641	0:b2692e0e4219	1586	}
roger5641	0:b2692e0e4219	1587	break;
roger5641	0:b2692e0e4219	1588	case STAT:
roger5641	0:b2692e0e4219	1589	LTC681x_clrstat();
roger5641	0:b2692e0e4219	1590	LTC681x_adstatd(adc_mode,STAT_CH_ALL);
roger5641	0:b2692e0e4219	1591	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1592	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1593	error = LTC681x_rdstat(0,total_ic,ic);
roger5641	0:b2692e0e4219	1594	for (int cic = 0; cic < total_ic; cic++)
roger5641	0:b2692e0e4219	1595	{
roger5641	0:b2692e0e4219	1596	for (int channel=0; channel< ic[cic].ic_reg.stat_channels; channel++)
roger5641	0:b2692e0e4219	1597	{
roger5641	0:b2692e0e4219	1598	if (ic[cic].stat.stat_codes[channel] >= 65280)
roger5641	0:b2692e0e4219	1599	{
roger5641	0:b2692e0e4219	1600	error = error+1;
roger5641	0:b2692e0e4219	1601	}
roger5641	0:b2692e0e4219	1602	}
roger5641	0:b2692e0e4219	1603	}
roger5641	0:b2692e0e4219	1604	break;
roger5641	0:b2692e0e4219	1605
roger5641	0:b2692e0e4219	1606	default:
roger5641	0:b2692e0e4219	1607	error = -1;
roger5641	0:b2692e0e4219	1608	break;
roger5641	0:b2692e0e4219	1609	}
roger5641	0:b2692e0e4219	1610	}
roger5641	0:b2692e0e4219	1611	return(error);
roger5641	0:b2692e0e4219	1612	}
roger5641	0:b2692e0e4219	1613
roger5641	0:b2692e0e4219	1614	//Runs the datasheet algorithm for open wire
roger5641	0:b2692e0e4219	1615	void LTC681x_run_openwire(uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1616	{
roger5641	0:b2692e0e4219	1617	uint16_t OPENWIRE_THRESHOLD = 4000;
roger5641	0:b2692e0e4219	1618	const uint8_t N_CHANNELS = ic[0].ic_reg.cell_channels;
roger5641	0:b2692e0e4219	1619
roger5641	0:b2692e0e4219	1620	cell_asic pullUp_cell_codes[total_ic];
roger5641	0:b2692e0e4219	1621	cell_asic pullDwn_cell_codes[total_ic];
roger5641	0:b2692e0e4219	1622	cell_asic openWire_delta[total_ic];
roger5641	0:b2692e0e4219	1623	int8_t error;
roger5641	0:b2692e0e4219	1624
roger5641	0:b2692e0e4219	1625	wakeup_sleep(total_ic);
roger5641	0:b2692e0e4219	1626	LTC681x_adow(MD_7KHZ_3KHZ,PULL_UP_CURRENT);
roger5641	0:b2692e0e4219	1627	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1628	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1629	LTC681x_adow(MD_7KHZ_3KHZ,PULL_UP_CURRENT);
roger5641	0:b2692e0e4219	1630	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1631	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1632	error = LTC681x_rdcv(0, total_ic,pullUp_cell_codes);
roger5641	0:b2692e0e4219	1633
roger5641	0:b2692e0e4219	1634	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1635	LTC681x_adow(MD_7KHZ_3KHZ,PULL_DOWN_CURRENT);
roger5641	0:b2692e0e4219	1636	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1637	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1638	LTC681x_adow(MD_7KHZ_3KHZ,PULL_DOWN_CURRENT);
roger5641	0:b2692e0e4219	1639	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1640	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1641	error = LTC681x_rdcv(0, total_ic,pullDwn_cell_codes);
roger5641	0:b2692e0e4219	1642
roger5641	0:b2692e0e4219	1643	for (int cic=0; cic<total_ic; cic++)
roger5641	0:b2692e0e4219	1644	{
roger5641	0:b2692e0e4219	1645	ic[cic].system_open_wire =0;
roger5641	0:b2692e0e4219	1646	for (int cell=0; cell<N_CHANNELS; cell++)
roger5641	0:b2692e0e4219	1647	{
roger5641	0:b2692e0e4219	1648	if (pullDwn_cell_codes[cic].cells.c_codes[cell]>pullUp_cell_codes[cic].cells.c_codes[cell])
roger5641	0:b2692e0e4219	1649	{
roger5641	0:b2692e0e4219	1650	openWire_delta[cic].cells.c_codes[cell] = pullDwn_cell_codes[cic].cells.c_codes[cell] - pullUp_cell_codes[cic].cells.c_codes[cell] ;
roger5641	0:b2692e0e4219	1651	}
roger5641	0:b2692e0e4219	1652	else
roger5641	0:b2692e0e4219	1653	{
roger5641	0:b2692e0e4219	1654	openWire_delta[cic].cells.c_codes[cell] = 0;
roger5641	0:b2692e0e4219	1655	}
roger5641	0:b2692e0e4219	1656
roger5641	0:b2692e0e4219	1657	}
roger5641	0:b2692e0e4219	1658	}
roger5641	0:b2692e0e4219	1659	for (int cic=0; cic<total_ic; cic++)
roger5641	0:b2692e0e4219	1660	{
roger5641	0:b2692e0e4219	1661	for (int cell=1; cell<N_CHANNELS; cell++)
roger5641	0:b2692e0e4219	1662	{
roger5641	0:b2692e0e4219	1663
roger5641	0:b2692e0e4219	1664	if (openWire_delta[cic].cells.c_codes[cell]>OPENWIRE_THRESHOLD)
roger5641	0:b2692e0e4219	1665	{
roger5641	0:b2692e0e4219	1666	ic[cic].system_open_wire += (1<<cell);
roger5641	0:b2692e0e4219	1667
roger5641	0:b2692e0e4219	1668	}
roger5641	0:b2692e0e4219	1669	}
roger5641	0:b2692e0e4219	1670	if (pullUp_cell_codes[cic].cells.c_codes[0] == 0)
roger5641	0:b2692e0e4219	1671	{
roger5641	0:b2692e0e4219	1672	ic[cic].system_open_wire += 1;
roger5641	0:b2692e0e4219	1673	}
roger5641	0:b2692e0e4219	1674	if (pullUp_cell_codes[cic].cells.c_codes[N_CHANNELS-1] == 0)
roger5641	0:b2692e0e4219	1675	{
roger5641	0:b2692e0e4219	1676	ic[cic].system_open_wire += (1<<(N_CHANNELS));
roger5641	0:b2692e0e4219	1677	}
roger5641	0:b2692e0e4219	1678	}
roger5641	0:b2692e0e4219	1679	}
roger5641	0:b2692e0e4219	1680
roger5641	0:b2692e0e4219	1681	// Runs the ADC overlap test for the IC
roger5641	0:b2692e0e4219	1682	uint16_t LTC681x_run_adc_overlap(uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1683	{
roger5641	0:b2692e0e4219	1684	uint16_t error = 0;
roger5641	0:b2692e0e4219	1685	int32_t measure_delta =0;
roger5641	0:b2692e0e4219	1686	int16_t failure_pos_limit = 20;
roger5641	0:b2692e0e4219	1687	int16_t failure_neg_limit = -20;
roger5641	0:b2692e0e4219	1688	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1689	LTC681x_adol(MD_7KHZ_3KHZ,DCP_DISABLED);
roger5641	0:b2692e0e4219	1690	LTC681x_pollAdc();
roger5641	0:b2692e0e4219	1691	wakeup_idle(total_ic);
roger5641	0:b2692e0e4219	1692	error = LTC681x_rdcv(0, total_ic,ic);
roger5641	0:b2692e0e4219	1693	for (int cic = 0; cic<total_ic; cic++)
roger5641	0:b2692e0e4219	1694	{
roger5641	0:b2692e0e4219	1695	measure_delta = (int32_t)ic[cic].cells.c_codes[6]-(int32_t)ic[cic].cells.c_codes[7];
roger5641	0:b2692e0e4219	1696	if ((measure_delta>failure_pos_limit) \|\| (measure_delta<failure_neg_limit))
roger5641	0:b2692e0e4219	1697	{
roger5641	0:b2692e0e4219	1698	error = error \| (1<<(cic-1));
roger5641	0:b2692e0e4219	1699	}
roger5641	0:b2692e0e4219	1700	}
roger5641	0:b2692e0e4219	1701	return(error);
roger5641	0:b2692e0e4219	1702	}
roger5641	0:b2692e0e4219	1703
roger5641	0:b2692e0e4219	1704	//Helper function that increments PEC counters
roger5641	0:b2692e0e4219	1705	void LTC681x_check_pec(uint8_t total_ic,uint8_t reg, cell_asic ic[])
roger5641	0:b2692e0e4219	1706	{
roger5641	0:b2692e0e4219	1707	switch (reg)
roger5641	0:b2692e0e4219	1708	{
roger5641	0:b2692e0e4219	1709	case CFGR:
roger5641	0:b2692e0e4219	1710	for (int current_ic = 0 ; current_ic < total_ic; current_ic++)
roger5641	0:b2692e0e4219	1711	{
roger5641	0:b2692e0e4219	1712	ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + ic[current_ic].config.rx_pec_match;
roger5641	0:b2692e0e4219	1713	ic[current_ic].crc_count.cfgr_pec = ic[current_ic].crc_count.cfgr_pec + ic[current_ic].config.rx_pec_match;
roger5641	0:b2692e0e4219	1714	}
roger5641	0:b2692e0e4219	1715	break;
roger5641	0:b2692e0e4219	1716
roger5641	0:b2692e0e4219	1717	case CFGRB:
roger5641	0:b2692e0e4219	1718	for (int current_ic = 0 ; current_ic < total_ic; current_ic++)
roger5641	0:b2692e0e4219	1719	{
roger5641	0:b2692e0e4219	1720	ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + ic[current_ic].configb.rx_pec_match;
roger5641	0:b2692e0e4219	1721	ic[current_ic].crc_count.cfgr_pec = ic[current_ic].crc_count.cfgr_pec + ic[current_ic].configb.rx_pec_match;
roger5641	0:b2692e0e4219	1722	}
roger5641	0:b2692e0e4219	1723	break;
roger5641	0:b2692e0e4219	1724	case CELL:
roger5641	0:b2692e0e4219	1725	for (int current_ic = 0 ; current_ic < total_ic; current_ic++)
roger5641	0:b2692e0e4219	1726	{
roger5641	0:b2692e0e4219	1727	for (int i=0; i<ic[0].ic_reg.num_cv_reg; i++)
roger5641	0:b2692e0e4219	1728	{
roger5641	0:b2692e0e4219	1729	ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + ic[current_ic].cells.pec_match[i];
roger5641	0:b2692e0e4219	1730	ic[current_ic].crc_count.cell_pec[i] = ic[current_ic].crc_count.cell_pec[i] + ic[current_ic].cells.pec_match[i];
roger5641	0:b2692e0e4219	1731	}
roger5641	0:b2692e0e4219	1732	}
roger5641	0:b2692e0e4219	1733	break;
roger5641	0:b2692e0e4219	1734	case AUX:
roger5641	0:b2692e0e4219	1735	for (int current_ic = 0 ; current_ic < total_ic; current_ic++)
roger5641	0:b2692e0e4219	1736	{
roger5641	0:b2692e0e4219	1737	for (int i=0; i<ic[0].ic_reg.num_gpio_reg; i++)
roger5641	0:b2692e0e4219	1738	{
roger5641	0:b2692e0e4219	1739	ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + (ic[current_ic].aux.pec_match[i]);
roger5641	0:b2692e0e4219	1740	ic[current_ic].crc_count.aux_pec[i] = ic[current_ic].crc_count.aux_pec[i] + (ic[current_ic].aux.pec_match[i]);
roger5641	0:b2692e0e4219	1741	}
roger5641	0:b2692e0e4219	1742	}
roger5641	0:b2692e0e4219	1743
roger5641	0:b2692e0e4219	1744	break;
roger5641	0:b2692e0e4219	1745	case STAT:
roger5641	0:b2692e0e4219	1746	for (int current_ic = 0 ; current_ic < total_ic; current_ic++)
roger5641	0:b2692e0e4219	1747	{
roger5641	0:b2692e0e4219	1748
roger5641	0:b2692e0e4219	1749	for (int i=0; i<ic[0].ic_reg.num_stat_reg-1; i++)
roger5641	0:b2692e0e4219	1750	{
roger5641	0:b2692e0e4219	1751	ic[current_ic].crc_count.pec_count = ic[current_ic].crc_count.pec_count + ic[current_ic].stat.pec_match[i];
roger5641	0:b2692e0e4219	1752	ic[current_ic].crc_count.stat_pec[i] = ic[current_ic].crc_count.stat_pec[i] + ic[current_ic].stat.pec_match[i];
roger5641	0:b2692e0e4219	1753	}
roger5641	0:b2692e0e4219	1754	}
roger5641	0:b2692e0e4219	1755	break;
roger5641	0:b2692e0e4219	1756	default:
roger5641	0:b2692e0e4219	1757	break;
roger5641	0:b2692e0e4219	1758	}
roger5641	0:b2692e0e4219	1759	}
roger5641	0:b2692e0e4219	1760
roger5641	0:b2692e0e4219	1761	//Helper Function to reset PEC counters
roger5641	0:b2692e0e4219	1762	void LTC681x_reset_crc_count(uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1763	{
roger5641	0:b2692e0e4219	1764	for (int current_ic = 0 ; current_ic < total_ic; current_ic++)
roger5641	0:b2692e0e4219	1765	{
roger5641	0:b2692e0e4219	1766	ic[current_ic].crc_count.pec_count = 0;
roger5641	0:b2692e0e4219	1767	ic[current_ic].crc_count.cfgr_pec = 0;
roger5641	0:b2692e0e4219	1768	for (int i=0; i<6; i++)
roger5641	0:b2692e0e4219	1769	{
roger5641	0:b2692e0e4219	1770	ic[current_ic].crc_count.cell_pec[i]=0;
roger5641	0:b2692e0e4219	1771
roger5641	0:b2692e0e4219	1772	}
roger5641	0:b2692e0e4219	1773	for (int i=0; i<4; i++)
roger5641	0:b2692e0e4219	1774	{
roger5641	0:b2692e0e4219	1775	ic[current_ic].crc_count.aux_pec[i]=0;
roger5641	0:b2692e0e4219	1776	}
roger5641	0:b2692e0e4219	1777	for (int i=0; i<2; i++)
roger5641	0:b2692e0e4219	1778	{
roger5641	0:b2692e0e4219	1779	ic[current_ic].crc_count.stat_pec[i]=0;
roger5641	0:b2692e0e4219	1780	}
roger5641	0:b2692e0e4219	1781	}
roger5641	0:b2692e0e4219	1782	}
roger5641	0:b2692e0e4219	1783
roger5641	0:b2692e0e4219	1784	//Helper function to intialize CFG variables.
roger5641	0:b2692e0e4219	1785	void LTC681x_init_cfg(uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1786	{
roger5641	0:b2692e0e4219	1787	bool REFON = true;
roger5641	0:b2692e0e4219	1788	bool ADCOPT = false;
roger5641	0:b2692e0e4219	1789	bool gpioBits[5] = {true,true,true,true,true};
roger5641	0:b2692e0e4219	1790	bool dccBits[12] = {false,false,false,false,false,false,false,false,false,false,false,false};
roger5641	0:b2692e0e4219	1791	for (uint8_t current_ic = 0; current_ic<total_ic; current_ic++)
roger5641	0:b2692e0e4219	1792	{
roger5641	0:b2692e0e4219	1793	for (int j =0; j<6; j++)
roger5641	0:b2692e0e4219	1794	{
roger5641	0:b2692e0e4219	1795	ic[current_ic].config.tx_data[j] = 0;
roger5641	0:b2692e0e4219	1796	ic[current_ic].configb.tx_data[j] = 0;
roger5641	0:b2692e0e4219	1797	}
roger5641	0:b2692e0e4219	1798	LTC681x_set_cfgr(current_ic ,ic,REFON,ADCOPT,gpioBits,dccBits);
roger5641	0:b2692e0e4219	1799
roger5641	0:b2692e0e4219	1800	}
roger5641	0:b2692e0e4219	1801	}
roger5641	0:b2692e0e4219	1802
roger5641	0:b2692e0e4219	1803	//Helper function to set CFGR variable
roger5641	0:b2692e0e4219	1804	void LTC681x_set_cfgr(uint8_t nIC, cell_asic ic[], bool refon, bool adcopt, bool gpio[5],bool dcc[12])
roger5641	0:b2692e0e4219	1805	{
roger5641	0:b2692e0e4219	1806	LTC681x_set_cfgr_refon(nIC,ic,refon);
roger5641	0:b2692e0e4219	1807	LTC681x_set_cfgr_adcopt(nIC,ic,adcopt);
roger5641	0:b2692e0e4219	1808	LTC681x_set_cfgr_gpio(nIC,ic,gpio);
roger5641	0:b2692e0e4219	1809	LTC681x_set_cfgr_dis(nIC,ic,dcc);
roger5641	0:b2692e0e4219	1810	}
roger5641	0:b2692e0e4219	1811
roger5641	0:b2692e0e4219	1812	//Helper function to set the REFON bit
roger5641	0:b2692e0e4219	1813	void LTC681x_set_cfgr_refon(uint8_t nIC, cell_asic ic[], bool refon)
roger5641	0:b2692e0e4219	1814	{
roger5641	0:b2692e0e4219	1815	if (refon) ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]\|0x04;
roger5641	0:b2692e0e4219	1816	else ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]&0xFB;
roger5641	0:b2692e0e4219	1817	}
roger5641	0:b2692e0e4219	1818
roger5641	0:b2692e0e4219	1819	//Helper function to set the adcopt bit
roger5641	0:b2692e0e4219	1820	void LTC681x_set_cfgr_adcopt(uint8_t nIC, cell_asic ic[], bool adcopt)
roger5641	0:b2692e0e4219	1821	{
roger5641	0:b2692e0e4219	1822	if (adcopt) ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]\|0x01;
roger5641	0:b2692e0e4219	1823	else ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]&0xFE;
roger5641	0:b2692e0e4219	1824	}
roger5641	0:b2692e0e4219	1825
roger5641	0:b2692e0e4219	1826	//Helper function to set GPIO bits
roger5641	0:b2692e0e4219	1827	void LTC681x_set_cfgr_gpio(uint8_t nIC, cell_asic ic[],bool gpio[5])
roger5641	0:b2692e0e4219	1828	{
roger5641	0:b2692e0e4219	1829	for (int i =0; i<5; i++)
roger5641	0:b2692e0e4219	1830	{
roger5641	0:b2692e0e4219	1831	if (gpio[i])ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]\|(0x01<<(i+3));
roger5641	0:b2692e0e4219	1832	else ic[nIC].config.tx_data[0] = ic[nIC].config.tx_data[0]&(~(0x01<<(i+3)));
roger5641	0:b2692e0e4219	1833	}
roger5641	0:b2692e0e4219	1834	}
roger5641	0:b2692e0e4219	1835
roger5641	0:b2692e0e4219	1836	//Helper function to control discharge
roger5641	0:b2692e0e4219	1837	void LTC681x_set_cfgr_dis(uint8_t nIC, cell_asic ic[],bool dcc[12])
roger5641	0:b2692e0e4219	1838	{
roger5641	0:b2692e0e4219	1839	for (int i =0; i<8; i++)
roger5641	0:b2692e0e4219	1840	{
roger5641	0:b2692e0e4219	1841	if (dcc[i])ic[nIC].config.tx_data[4] = ic[nIC].config.tx_data[4]\|(0x01<<i);
roger5641	0:b2692e0e4219	1842	else ic[nIC].config.tx_data[4] = ic[nIC].config.tx_data[4]& (~(0x01<<i));
roger5641	0:b2692e0e4219	1843	}
roger5641	0:b2692e0e4219	1844	for (int i =0; i<4; i++)
roger5641	0:b2692e0e4219	1845	{
roger5641	0:b2692e0e4219	1846	if (dcc[i+8])ic[nIC].config.tx_data[5] = ic[nIC].config.tx_data[5]\|(0x01<<i);
roger5641	0:b2692e0e4219	1847	else ic[nIC].config.tx_data[5] = ic[nIC].config.tx_data[5]&(~(0x01<<i));
roger5641	0:b2692e0e4219	1848	}
roger5641	0:b2692e0e4219	1849	}
roger5641	0:b2692e0e4219	1850
roger5641	0:b2692e0e4219	1851	//************************* LTC 6811 **************************************//
roger5641	0:b2692e0e4219	1852	void LTC6811_init_reg_limits(uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1853	{
roger5641	0:b2692e0e4219	1854	for (uint8_t cic=0; cic<total_ic; cic++)
roger5641	0:b2692e0e4219	1855	{
roger5641	0:b2692e0e4219	1856	ic[cic].ic_reg.cell_channels=12;
roger5641	0:b2692e0e4219	1857	ic[cic].ic_reg.stat_channels=4;
roger5641	0:b2692e0e4219	1858	ic[cic].ic_reg.aux_channels=6;
roger5641	0:b2692e0e4219	1859	ic[cic].ic_reg.num_cv_reg=4;
roger5641	0:b2692e0e4219	1860	ic[cic].ic_reg.num_gpio_reg=2;
roger5641	0:b2692e0e4219	1861	ic[cic].ic_reg.num_stat_reg=3;
roger5641	0:b2692e0e4219	1862	}
roger5641	0:b2692e0e4219	1863	}
roger5641	0:b2692e0e4219	1864
roger5641	0:b2692e0e4219	1865	//Helper function to set discharge bit in CFG register
roger5641	0:b2692e0e4219	1866	void LTC6811_set_discharge(int Cell, uint8_t total_ic, cell_asic ic[])
roger5641	0:b2692e0e4219	1867	{
roger5641	0:b2692e0e4219	1868	for (int i=0; i<total_ic; i++)
roger5641	0:b2692e0e4219	1869	{
roger5641	0:b2692e0e4219	1870	if (Cell<9)
roger5641	0:b2692e0e4219	1871	{
roger5641	0:b2692e0e4219	1872	ic[i].config.tx_data[4] = ic[i].config.tx_data[4] \| (1<<(Cell-1));
roger5641	0:b2692e0e4219	1873	}
roger5641	0:b2692e0e4219	1874	else if (Cell < 13)
roger5641	0:b2692e0e4219	1875	{
roger5641	0:b2692e0e4219	1876	ic[i].config.tx_data[5] = ic[i].config.tx_data[5] \| (1<<(Cell-9));
roger5641	0:b2692e0e4219	1877	}
roger5641	0:b2692e0e4219	1878	}
roger5641	0:b2692e0e4219	1879	}
roger5641	0:b2692e0e4219	1880
roger5641	0:b2692e0e4219	1881	//**************************** SPI ************************************//
roger5641	0:b2692e0e4219	1882	/*
roger5641	0:b2692e0e4219	1883	Writes an array of bytes out of the SPI port
roger5641	0:b2692e0e4219	1884	*/
roger5641	0:b2692e0e4219	1885	void spi_write_array(uint8_t len, // Option: Number of bytes to be written on the SPI port
roger5641	0:b2692e0e4219	1886	uint8_t data[] //Array of bytes to be written on the SPI port
roger5641	0:b2692e0e4219	1887	)
roger5641	0:b2692e0e4219	1888	{
roger5641	0:b2692e0e4219	1889	for (uint8_t i = 0; i < len; i++)
roger5641	0:b2692e0e4219	1890	{
roger5641	0:b2692e0e4219	1891	spi.write((int8_t)data[i]);
roger5641	0:b2692e0e4219	1892	}
roger5641	0:b2692e0e4219	1893	}
roger5641	0:b2692e0e4219	1894
roger5641	0:b2692e0e4219	1895	/*
roger5641	0:b2692e0e4219	1896	Writes and read a set number of bytes using the SPI port.
roger5641	0:b2692e0e4219	1897
roger5641	0:b2692e0e4219	1898	*/
roger5641	0:b2692e0e4219	1899
roger5641	0:b2692e0e4219	1900	void spi_write_read(uint8_t tx_Data[],//array of data to be written on SPI port
roger5641	0:b2692e0e4219	1901	uint8_t tx_len, //length of the tx data arry
roger5641	0:b2692e0e4219	1902	uint8_t *rx_data,//Input: array that will store the data read by the SPI port
roger5641	0:b2692e0e4219	1903	uint8_t rx_len //Option: number of bytes to be read from the SPI port
roger5641	0:b2692e0e4219	1904	)
roger5641	0:b2692e0e4219	1905	{
roger5641	0:b2692e0e4219	1906	for (uint8_t i = 0; i < tx_len; i++)
roger5641	0:b2692e0e4219	1907	{
roger5641	0:b2692e0e4219	1908	spi.write(tx_Data[i]);
roger5641	0:b2692e0e4219	1909	}
roger5641	0:b2692e0e4219	1910
roger5641	0:b2692e0e4219	1911	for (uint8_t i = 0; i < rx_len; i++)
roger5641	0:b2692e0e4219	1912	{
roger5641	0:b2692e0e4219	1913
roger5641	0:b2692e0e4219	1914	rx_data[i] = (uint8_t)spi.write(0xFF);
roger5641	0:b2692e0e4219	1915	}
roger5641	0:b2692e0e4219	1916
roger5641	0:b2692e0e4219	1917	}
roger5641	0:b2692e0e4219	1918
roger5641	0:b2692e0e4219	1919	uint8_t spi_read_byte(uint8_t tx_dat)
roger5641	0:b2692e0e4219	1920	{
roger5641	0:b2692e0e4219	1921	uint8_t data;
roger5641	0:b2692e0e4219	1922	data = (uint8_t)spi.write(0xFF);
roger5641	0:b2692e0e4219	1923	return(data);
roger5641	0:b2692e0e4219	1924	}
roger5641	0:b2692e0e4219	1925
roger5641	0:b2692e0e4219	1926	//**************************** UserInterface ************************************//
roger5641	0:b2692e0e4219	1927	char ui_buffer[UI_BUFFER_SIZE];
roger5641	0:b2692e0e4219	1928
roger5641	0:b2692e0e4219	1929	// Read data from the serial interface into the ui_buffer
roger5641	0:b2692e0e4219	1930	uint8_t read_data()
roger5641	0:b2692e0e4219	1931	{
roger5641	0:b2692e0e4219	1932	uint8_t index = 0; //index to hold current location in ui_buffer
roger5641	0:b2692e0e4219	1933	int c; // single character used to store incoming keystrokes
roger5641	0:b2692e0e4219	1934	while (index < UI_BUFFER_SIZE-1)
roger5641	0:b2692e0e4219	1935	{
roger5641	0:b2692e0e4219	1936	c = pc.getc(); //read one character
roger5641	0:b2692e0e4219	1937	if (((char) c == '\r') \|\| ((char) c == '\n')) break; // if carriage return or linefeed, stop and return data
roger5641	0:b2692e0e4219	1938	if ( ((char) c == '\x7F') \|\| ((char) c == '\x08') ) // remove previous character (decrement index) if Backspace/Delete key pressed index--;
roger5641	0:b2692e0e4219	1939	{
roger5641	0:b2692e0e4219	1940	if (index > 0) index--;
roger5641	0:b2692e0e4219	1941	}
roger5641	0:b2692e0e4219	1942	else if (c >= 0)
roger5641	0:b2692e0e4219	1943	{
roger5641	0:b2692e0e4219	1944	ui_buffer[index++]=(char) c; // put character into ui_buffer
roger5641	0:b2692e0e4219	1945	}
roger5641	0:b2692e0e4219	1946	}
roger5641	0:b2692e0e4219	1947	ui_buffer[index]='\0'; // terminate string with NULL
roger5641	0:b2692e0e4219	1948
roger5641	0:b2692e0e4219	1949	if ((char) c == '\r') // if the last character was a carriage return, also clear linefeed if it is next character
roger5641	0:b2692e0e4219	1950	{
roger5641	0:b2692e0e4219	1951	wait_ms(10); // allow 10ms for linefeed to appear on serial pins
roger5641	0:b2692e0e4219	1952	// if (pc.peek() == '\n')
roger5641	0:b2692e0e4219	1953	pc.getc(); // if linefeed appears, read it and throw it away
roger5641	0:b2692e0e4219	1954	}
roger5641	0:b2692e0e4219	1955
roger5641	0:b2692e0e4219	1956	return index; // return number of characters, not including null terminator
roger5641	0:b2692e0e4219	1957	}
roger5641	0:b2692e0e4219	1958
roger5641	0:b2692e0e4219	1959	// Read an integer from the serial interface.
roger5641	0:b2692e0e4219	1960	// The routine can recognize Hex, Decimal, Octal, or Binary
roger5641	0:b2692e0e4219	1961	// Example:
roger5641	0:b2692e0e4219	1962	// Hex: 0x11 (0x prefix)
roger5641	0:b2692e0e4219	1963	// Decimal: 17
roger5641	0:b2692e0e4219	1964	// Octal: 021 (leading zero prefix)
roger5641	0:b2692e0e4219	1965	// Binary: B10001 (leading B prefix)
roger5641	0:b2692e0e4219	1966	int32_t read_int()
roger5641	0:b2692e0e4219	1967	{
roger5641	0:b2692e0e4219	1968	int32_t data;
roger5641	0:b2692e0e4219	1969	read_data();
roger5641	0:b2692e0e4219	1970	if (ui_buffer[0] == 'm')
roger5641	0:b2692e0e4219	1971	return('m');
roger5641	0:b2692e0e4219	1972	if ((ui_buffer[0] == 'B') \|\| (ui_buffer[0] == 'b'))
roger5641	0:b2692e0e4219	1973	{
roger5641	0:b2692e0e4219	1974	data = strtol(ui_buffer+1, NULL, 2);
roger5641	0:b2692e0e4219	1975	}
roger5641	0:b2692e0e4219	1976	else
roger5641	0:b2692e0e4219	1977	data = strtol(ui_buffer, NULL, 0);
roger5641	0:b2692e0e4219	1978	return(data);
roger5641	0:b2692e0e4219	1979	}
roger5641	0:b2692e0e4219	1980
roger5641	0:b2692e0e4219	1981	// Read a character from the serial interface
roger5641	0:b2692e0e4219	1982	int8_t read_char()
roger5641	0:b2692e0e4219	1983	{
roger5641	0:b2692e0e4219	1984	read_data();
roger5641	0:b2692e0e4219	1985	return(ui_buffer[0]);
roger5641	0:b2692e0e4219	1986	}
roger5641	0:b2692e0e4219	1987

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Type:	Library
Created:	17 Nov 2017
Imports:	8
Forks:	0
Commits:	4
Dependents:	1
Dependencies:	0
Followers:	1

bms_master.h@3:2561f59cd3dd, 2018-01-17 (annotated)

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