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Dependencies: EthernetNetIf TextLCD mbed PS2 HTTPClient

VS1002.cpp@1:5ae213418d04, 2011-02-28 (annotated)

Committer:: benglish6
Date:: Mon Feb 28 17:37:46 2011 +0000
Revision:: 1:5ae213418d04
Parent:: 0:c69af1faeb95

Who changed what in which revision?

User	Revision	Line number	New contents of line
benglish6	0:c69af1faeb95	1	#include "VS1002.h"
benglish6	0:c69af1faeb95	2	#include "mbed.h"
benglish6	0:c69af1faeb95	3	#include "TextLCD.h"
benglish6	0:c69af1faeb95	4	//AnalogIn rotary1(p19);
benglish6	0:c69af1faeb95	5	//DigitalIn pause1(p28);
benglish6	0:c69af1faeb95	6	//TextLCD lcd(p10, p18, p24, p23, p22, p21, TextLCD::LCD16x2 ); // rs, e, d0-d3
benglish6	0:c69af1faeb95	7
benglish6	0:c69af1faeb95	8
benglish6	0:c69af1faeb95	9	/* ==================================================================
benglish6	0:c69af1faeb95	10	* Constructor
benglish6	0:c69af1faeb95	11	* =================================================================*/
benglish6	0:c69af1faeb95	12	VS1002::VS1002(
benglish6	0:c69af1faeb95	13	PinName mmosi, PinName mmiso, PinName ssck, PinName ccs, const char *name,
benglish6	0:c69af1faeb95	14	PinName mosi, PinName miso, PinName sck, PinName cs, PinName rst,
benglish6	0:c69af1faeb95	15	PinName dreq, PinName dcs, PinName vol)
benglish6	0:c69af1faeb95	16	:
benglish6	0:c69af1faeb95	17	_sd(mmosi, mmiso, ssck, ccs, name),
benglish6	0:c69af1faeb95	18	_spi(mosi, miso, sck),
benglish6	0:c69af1faeb95	19	_CS(cs),
benglish6	0:c69af1faeb95	20	_RST(rst),
benglish6	0:c69af1faeb95	21	_DREQ(dreq),
benglish6	0:c69af1faeb95	22	_DCS(dcs),
benglish6	0:c69af1faeb95	23	_VOL(vol) {
benglish6	0:c69af1faeb95	24
benglish6	0:c69af1faeb95	25	}
benglish6	0:c69af1faeb95	26
benglish6	0:c69af1faeb95	27	/*===================================================================
benglish6	0:c69af1faeb95	28	* Functions
benglish6	0:c69af1faeb95	29	==================================================================/
benglish6	0:c69af1faeb95	30
benglish6	0:c69af1faeb95	31	void VS1002::cs_low(void)
benglish6	0:c69af1faeb95	32	{
benglish6	0:c69af1faeb95	33	_CS = 0;
benglish6	0:c69af1faeb95	34	}
benglish6	0:c69af1faeb95	35	void VS1002::cs_high(void)
benglish6	0:c69af1faeb95	36	{
benglish6	0:c69af1faeb95	37	_CS = 1;
benglish6	0:c69af1faeb95	38	}
benglish6	0:c69af1faeb95	39	void VS1002::dcs_low(void)
benglish6	0:c69af1faeb95	40	{
benglish6	0:c69af1faeb95	41	_DCS = 0;
benglish6	0:c69af1faeb95	42	}
benglish6	0:c69af1faeb95	43	void VS1002::dcs_high(void)
benglish6	0:c69af1faeb95	44	{
benglish6	0:c69af1faeb95	45	_DCS = 1;
benglish6	0:c69af1faeb95	46	}
benglish6	0:c69af1faeb95	47	void VS1002::sci_en(void) //SCI enable
benglish6	0:c69af1faeb95	48	{
benglish6	0:c69af1faeb95	49	cs_high();
benglish6	0:c69af1faeb95	50	dcs_high();
benglish6	0:c69af1faeb95	51	cs_low();
benglish6	0:c69af1faeb95	52	}
benglish6	0:c69af1faeb95	53	void VS1002::sci_dis(void) //SCI disable
benglish6	0:c69af1faeb95	54	{
benglish6	0:c69af1faeb95	55	cs_high();
benglish6	0:c69af1faeb95	56	}
benglish6	0:c69af1faeb95	57	void VS1002::sdi_en(void) //SDI enable
benglish6	0:c69af1faeb95	58	{
benglish6	0:c69af1faeb95	59	dcs_high();
benglish6	0:c69af1faeb95	60	cs_high();
benglish6	0:c69af1faeb95	61	dcs_low();
benglish6	0:c69af1faeb95	62	}
benglish6	0:c69af1faeb95	63	void VS1002::sdi_dis(void) //SDI disable
benglish6	0:c69af1faeb95	64	{
benglish6	0:c69af1faeb95	65	dcs_high();
benglish6	0:c69af1faeb95	66	}
benglish6	0:c69af1faeb95	67	void VS1002::reset(void) //hardware reset
benglish6	0:c69af1faeb95	68	{
benglish6	0:c69af1faeb95	69	wait(0.01);
benglish6	0:c69af1faeb95	70	_RST = 0;
benglish6	0:c69af1faeb95	71	wait(0.01);
benglish6	0:c69af1faeb95	72	_RST = 1;
benglish6	0:c69af1faeb95	73	wait(0.10);
benglish6	0:c69af1faeb95	74	}
benglish6	0:c69af1faeb95	75	void VS1002::power_down(void) //hardware and software reset
benglish6	0:c69af1faeb95	76	{
benglish6	0:c69af1faeb95	77	cs_low();
benglish6	0:c69af1faeb95	78	reset();
benglish6	0:c69af1faeb95	79	sci_write(0x00, SM_PDOWN);
benglish6	0:c69af1faeb95	80	wait(0.01);
benglish6	0:c69af1faeb95	81	reset();
benglish6	0:c69af1faeb95	82	}
benglish6	0:c69af1faeb95	83	void VS1002::sci_initialise(void)
benglish6	0:c69af1faeb95	84	{
benglish6	0:c69af1faeb95	85	_RST = 1; //no reset
benglish6	0:c69af1faeb95	86	_spi.format(8,0); //spi 8bit interface, steady state low
benglish6	0:c69af1faeb95	87	_spi.frequency(1000000); //rising edge data record, freq. 1Mhz
benglish6	0:c69af1faeb95	88
benglish6	0:c69af1faeb95	89	cs_low();
benglish6	0:c69af1faeb95	90	for(int i=0; i<4; i++)
benglish6	0:c69af1faeb95	91	{
benglish6	0:c69af1faeb95	92	_spi.write(0xFF); //clock the chip a bit
benglish6	0:c69af1faeb95	93	}
benglish6	0:c69af1faeb95	94	cs_high();
benglish6	0:c69af1faeb95	95	dcs_high();
benglish6	0:c69af1faeb95	96	wait_us(5);
benglish6	0:c69af1faeb95	97	}
benglish6	0:c69af1faeb95	98	void VS1002::sdi_initialise(void)
benglish6	0:c69af1faeb95	99	{
benglish6	0:c69af1faeb95	100	_spi.format(8,0);
benglish6	0:c69af1faeb95	101	_spi.frequency(7000000); //set to 7MHz
benglish6	0:c69af1faeb95	102
benglish6	0:c69af1faeb95	103	cs_high();
benglish6	0:c69af1faeb95	104	dcs_high();
benglish6	0:c69af1faeb95	105	}
benglish6	0:c69af1faeb95	106	void VS1002::sci_write(unsigned char address, unsigned short int data)
benglish6	0:c69af1faeb95	107	{
benglish6	0:c69af1faeb95	108	sci_en(); //enables SCI/disables SDI
benglish6	0:c69af1faeb95	109
benglish6	0:c69af1faeb95	110	while(!_DREQ); //wait unitl data request is high
benglish6	0:c69af1faeb95	111	_spi.write(0x02); //SCI write
benglish6	0:c69af1faeb95	112	_spi.write(address); //register address
benglish6	0:c69af1faeb95	113	_spi.write((data >> 8) & 0xFF); //write out first half of data word
benglish6	0:c69af1faeb95	114	_spi.write(data & 0xFF); //write out second half of data word
benglish6	0:c69af1faeb95	115
benglish6	0:c69af1faeb95	116	sci_dis(); //enables SDI/disables SCI
benglish6	0:c69af1faeb95	117	wait_us(5);
benglish6	0:c69af1faeb95	118	}
benglish6	0:c69af1faeb95	119	void VS1002::sdi_write(unsigned char datum)
benglish6	0:c69af1faeb95	120	{
benglish6	0:c69af1faeb95	121	sdi_en();
benglish6	0:c69af1faeb95	122
benglish6	0:c69af1faeb95	123	while(!_DREQ);
benglish6	0:c69af1faeb95	124	_spi.write(datum);
benglish6	0:c69af1faeb95	125
benglish6	0:c69af1faeb95	126	sci_dis();
benglish6	0:c69af1faeb95	127	}
benglish6	0:c69af1faeb95	128	unsigned short int VS1002::read(unsigned short int address)
benglish6	0:c69af1faeb95	129	{
benglish6	0:c69af1faeb95	130	cs_low(); //enables SCI/disables SDI
benglish6	0:c69af1faeb95	131
benglish6	0:c69af1faeb95	132	while(!_DREQ); //wait unitl data request is high
benglish6	0:c69af1faeb95	133	_spi.write(0x03); //SCI write
benglish6	0:c69af1faeb95	134	_spi.write(address); //register address
benglish6	0:c69af1faeb95	135	unsigned short int received = _spi.write(0x00); //write out dummy byte
benglish6	0:c69af1faeb95	136	received <<= 8;
benglish6	0:c69af1faeb95	137	received += _spi.write(0x00); //write out dummy byte
benglish6	0:c69af1faeb95	138
benglish6	0:c69af1faeb95	139	cs_high(); //enables SDI/disables SCI
benglish6	0:c69af1faeb95	140
benglish6	0:c69af1faeb95	141	return received; //return received word
benglish6	0:c69af1faeb95	142	}
benglish6	0:c69af1faeb95	143	void VS1002::sine_test_activate(unsigned char wave)
benglish6	0:c69af1faeb95	144	{
benglish6	0:c69af1faeb95	145	cs_high(); //enables SDI/disables SCI
benglish6	0:c69af1faeb95	146
benglish6	0:c69af1faeb95	147	while(!_DREQ); //wait unitl data request is high
benglish6	0:c69af1faeb95	148	_spi.write(0x53); //SDI write
benglish6	0:c69af1faeb95	149	_spi.write(0xEF); //SDI write
benglish6	0:c69af1faeb95	150	_spi.write(0x6E); //SDI write
benglish6	0:c69af1faeb95	151	_spi.write(wave); //SDI write
benglish6	0:c69af1faeb95	152	_spi.write(0x00); //filler byte
benglish6	0:c69af1faeb95	153	_spi.write(0x00); //filler byte
benglish6	0:c69af1faeb95	154	_spi.write(0x00); //filler byte
benglish6	0:c69af1faeb95	155	_spi.write(0x00); //filler byte
benglish6	0:c69af1faeb95	156
benglish6	0:c69af1faeb95	157	cs_low(); //enables SCI/disables SDI
benglish6	0:c69af1faeb95	158	}
benglish6	0:c69af1faeb95	159	void VS1002::sine_test_deactivate(void)
benglish6	0:c69af1faeb95	160	{
benglish6	0:c69af1faeb95	161	cs_high();
benglish6	0:c69af1faeb95	162
benglish6	0:c69af1faeb95	163	while(!_DREQ);
benglish6	0:c69af1faeb95	164	_spi.write(0x45); //SDI write
benglish6	0:c69af1faeb95	165	_spi.write(0x78); //SDI write
benglish6	0:c69af1faeb95	166	_spi.write(0x69); //SDI write
benglish6	0:c69af1faeb95	167	_spi.write(0x74); //SDI write
benglish6	0:c69af1faeb95	168	_spi.write(0x00); //filler byte
benglish6	0:c69af1faeb95	169	_spi.write(0x00); //filler byte
benglish6	0:c69af1faeb95	170	_spi.write(0x00); //filler byte
benglish6	0:c69af1faeb95	171	_spi.write(0x00); //filler byte
benglish6	0:c69af1faeb95	172	}
benglish6	0:c69af1faeb95	173	void VS1002::volume(void)
benglish6	0:c69af1faeb95	174	{
benglish6	0:c69af1faeb95	175	#ifdef FIXED_VOL
benglish6	0:c69af1faeb95	176	unsigned char volumize = (0 * 255); // FIXED VOL (not support volume input)
benglish6	0:c69af1faeb95	177	#else
benglish6	0:c69af1faeb95	178	unsigned char volumize = (_VOL * 255);
benglish6	0:c69af1faeb95	179	#endif
benglish6	0:c69af1faeb95	180	while(!_DREQ);
benglish6	0:c69af1faeb95	181
benglish6	0:c69af1faeb95	182	unsigned short int attenuation = ((256 * volumize) + volumize);
benglish6	0:c69af1faeb95	183	sci_write(0x0B, attenuation);
benglish6	0:c69af1faeb95	184
benglish6	0:c69af1faeb95	185	}
benglish6	0:c69af1faeb95	186
benglish6	0:c69af1faeb95	187	void VS1002::play_song(int song_number)
benglish6	0:c69af1faeb95	188	{
benglish6	0:c69af1faeb95	189	/====== Song Select ======/
benglish6	0:c69af1faeb95	190
benglish6	0:c69af1faeb95	191	// char list[10000] = {0};
benglish6	0:c69af1faeb95	192	char list[1000] = {0};
benglish6	0:c69af1faeb95	193	char str[16] = {"/sd/"};
benglish6	0:c69af1faeb95	194	unsigned int startplace = 0;
benglish6	0:c69af1faeb95	195	unsigned int endplace = 0;
benglish6	0:c69af1faeb95	196	unsigned int play = 0;
benglish6	0:c69af1faeb95	197	num_of_files = 0;
benglish6	0:c69af1faeb95	198
benglish6	0:c69af1faeb95	199	DIR *d;
benglish6	0:c69af1faeb95	200	struct dirent *p;
benglish6	0:c69af1faeb95	201	d = opendir("/sd");
benglish6	0:c69af1faeb95	202	if(d != NULL)
benglish6	0:c69af1faeb95	203	{
benglish6	0:c69af1faeb95	204	while((p = readdir(d)) != NULL)
benglish6	0:c69af1faeb95	205	{
benglish6	0:c69af1faeb95	206	strcat(list, "*");
benglish6	0:c69af1faeb95	207	strcat(list, p->d_name);
benglish6	0:c69af1faeb95	208	num_of_files++;
benglish6	0:c69af1faeb95	209	printf("hi!%i\n",num_of_files);
benglish6	0:c69af1faeb95	210	}
benglish6	0:c69af1faeb95	211	}
benglish6	0:c69af1faeb95	212	else
benglish6	0:c69af1faeb95	213	{
benglish6	0:c69af1faeb95	214	perror("Could not open directory!");
benglish6	0:c69af1faeb95	215	}
benglish6	0:c69af1faeb95	216	strcat(list, ""); //terminating
benglish6	0:c69af1faeb95	217	if(num_of_files < song_number)
benglish6	0:c69af1faeb95	218	{
benglish6	0:c69af1faeb95	219	return;
benglish6	0:c69af1faeb95	220	}
benglish6	0:c69af1faeb95	221	while(play != song_number)
benglish6	0:c69af1faeb95	222	{
benglish6	0:c69af1faeb95	223	char symbol = list[startplace];
benglish6	0:c69af1faeb95	224	startplace++;
benglish6	0:c69af1faeb95	225	if(symbol == 0x2A) //0x2A = "*"
benglish6	0:c69af1faeb95	226	{
benglish6	0:c69af1faeb95	227	play++;
benglish6	0:c69af1faeb95	228	}
benglish6	0:c69af1faeb95	229	}
benglish6	0:c69af1faeb95	230	play = 0;
benglish6	0:c69af1faeb95	231	while(play != (song_number+1))
benglish6	0:c69af1faeb95	232	{
benglish6	0:c69af1faeb95	233	char symbol = list[endplace];
benglish6	0:c69af1faeb95	234	endplace++;
benglish6	0:c69af1faeb95	235	if(symbol == 0x2A) //0x2A = "*"
benglish6	0:c69af1faeb95	236	{
benglish6	0:c69af1faeb95	237	play++;
benglish6	0:c69af1faeb95	238	}
benglish6	0:c69af1faeb95	239	}
benglish6	0:c69af1faeb95	240
benglish6	0:c69af1faeb95	241	strncat(str, &list[startplace], endplace-startplace);
benglish6	0:c69af1faeb95	242	str[(endplace-startplace)+3] = '\0';
benglish6	0:c69af1faeb95	243
benglish6	0:c69af1faeb95	244	//printf("list: %s\r\n",list); //debug
benglish6	0:c69af1faeb95	245
benglish6	0:c69af1faeb95	246	/====== File Transfer ======/
benglish6	0:c69af1faeb95	247
benglish6	0:c69af1faeb95	248	// return if not MP3 file
benglish6	0:c69af1faeb95	249	if (!((strstr(str,"MP3")!=NULL)\|\|(strstr(str,"mp3")!=NULL))) return;
benglish6	0:c69af1faeb95	250	// display filename.mp3 to the lcd screen
benglish6	0:c69af1faeb95	251	//lcd.printf("Now Playing: %s\r\n",str);
benglish6	0:c69af1faeb95	252
benglish6	0:c69af1faeb95	253	FILE *song;
benglish6	0:c69af1faeb95	254	unsigned char array[512];
benglish6	0:c69af1faeb95	255
benglish6	0:c69af1faeb95	256	song = fopen(str, "rb");
benglish6	0:c69af1faeb95	257
benglish6	0:c69af1faeb95	258	if(!song)
benglish6	0:c69af1faeb95	259	{
benglish6	0:c69af1faeb95	260	printf("oh noes! no song!\n");
benglish6	0:c69af1faeb95	261	exit(1);
benglish6	0:c69af1faeb95	262	}
benglish6	0:c69af1faeb95	263
benglish6	0:c69af1faeb95	264	while((!feof(song))/&&!pause1/)
benglish6	0:c69af1faeb95	265	{
benglish6	0:c69af1faeb95	266	printf("should be playing\n");
benglish6	0:c69af1faeb95	267	fread(&array, 1, 512, song);
benglish6	0:c69af1faeb95	268	for(int i=0; i<512; i++)
benglish6	0:c69af1faeb95	269	{
benglish6	0:c69af1faeb95	270	#ifndef FS_ONLY
benglish6	0:c69af1faeb95	271	sdi_write(array[i]);
benglish6	0:c69af1faeb95	272	// printf(".");
benglish6	0:c69af1faeb95	273	#endif
benglish6	0:c69af1faeb95	274	}
benglish6	0:c69af1faeb95	275	#ifndef FS_ONLY
benglish6	0:c69af1faeb95	276	volume();
benglish6	0:c69af1faeb95	277	#endif
benglish6	0:c69af1faeb95	278	}
benglish6	0:c69af1faeb95	279	for(int n=0; n<2048; n++)
benglish6	0:c69af1faeb95	280	{
benglish6	0:c69af1faeb95	281	#ifndef FS_ONLY
benglish6	0:c69af1faeb95	282	sdi_write(0x00);
benglish6	0:c69af1faeb95	283	#endif
benglish6	0:c69af1faeb95	284	}
benglish6	0:c69af1faeb95	285	fclose(song); //close the file
benglish6	0:c69af1faeb95	286	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	28 Feb 2011
Imports:	37
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	5
Followers:	1

VS1002.cpp@1:5ae213418d04, 2011-02-28 (annotated)

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