frederic blanc / OneWire

onewire 1-wire ds18x20 ds2450 multi-channel

Dependents:   ibutton

onewire.h@0:8c4e1841eb30, 2012-03-02 (annotated)

Committer:
fblanc
Date:
Fri Mar 02 08:29:49 2012 +0000
Revision:
0:8c4e1841eb30
v1.1 onewire multi-channel

Who changed what in which revision?

UserRevisionLine numberNew contents of line
fblanc 0:8c4e1841eb30 1 /**
fblanc 0:8c4e1841eb30 2 * @file onewire.h
fblanc 0:8c4e1841eb30 3 * @brief library 1-Wire(www.maxim-ic.com)
fblanc 0:8c4e1841eb30 4 * @author Maciej Rajtar (Published 10 May 2010 www.mbed.org)
fblanc 0:8c4e1841eb30 5 * @author Frederic BLANC (Published 01/03/2012 www.mbed.org)
fblanc 0:8c4e1841eb30 6 */
fblanc 0:8c4e1841eb30 7
fblanc 0:8c4e1841eb30 8 #ifndef _onewire_
fblanc 0:8c4e1841eb30 9 #define _onewire_
fblanc 0:8c4e1841eb30 10 #include "DS2450.h"
fblanc 0:8c4e1841eb30 11 #include "DS18X20.h"
fblanc 0:8c4e1841eb30 12 #include "crc8.h"
fblanc 0:8c4e1841eb30 13 #include "crc16.h"
fblanc 0:8c4e1841eb30 14 //#define DEBUG 1
fblanc 0:8c4e1841eb30 15 //#define DEBUG_L1 1
fblanc 0:8c4e1841eb30 16 #define ONEWIRE_PIN p21
fblanc 0:8c4e1841eb30 17
fblanc 0:8c4e1841eb30 18 #define MAXSENSORS 8
fblanc 0:8c4e1841eb30 19 #define MAXBUS 4
fblanc 0:8c4e1841eb30 20 // rom-code size including CRC
fblanc 0:8c4e1841eb30 21 #define OW_ROMCODE_SIZE 8
fblanc 0:8c4e1841eb30 22
fblanc 0:8c4e1841eb30 23 #define OW_OK 0x00
fblanc 0:8c4e1841eb30 24 #define OW_ERROR 0x01
fblanc 0:8c4e1841eb30 25 #define OW_START_FAIL 0x02
fblanc 0:8c4e1841eb30 26 #define OW_ERROR_CRC 0x03
fblanc 0:8c4e1841eb30 27 #define OW_ERROR_BAD_ID 0x04
fblanc 0:8c4e1841eb30 28 #define OW_BUSY 0x05
fblanc 0:8c4e1841eb30 29
fblanc 0:8c4e1841eb30 30 #define OW_MATCH_ROM 0x55
fblanc 0:8c4e1841eb30 31 #define OW_SKIP_ROM 0xCC
fblanc 0:8c4e1841eb30 32 #define OW_SEARCH_ROM 0xF0
fblanc 0:8c4e1841eb30 33 #define OW_READ_ROM 0x33
fblanc 0:8c4e1841eb30 34 #define OW_CONDITIONAL_SEARCH 0xEC
fblanc 0:8c4e1841eb30 35 #define OW_OVERDRIVE_SKIP_ROM 0x3C
fblanc 0:8c4e1841eb30 36 #define OW_OVERDRIVE_MATCH_ROM 0x69
fblanc 0:8c4e1841eb30 37
fblanc 0:8c4e1841eb30 38 #define OW_SHORT_CIRCUIT 0xFF
fblanc 0:8c4e1841eb30 39 #define OW_SEARCH_FIRST 0xFF // start new search
fblanc 0:8c4e1841eb30 40 #define OW_PRESENCE_ERR 0x01
fblanc 0:8c4e1841eb30 41 #define OW_DATA_ERR 0xFE
fblanc 0:8c4e1841eb30 42 #define OW_LAST_DEVICE 0x00 // last device found
fblanc 0:8c4e1841eb30 43 // 0x01 ... 0x40: continue searching
fblanc 0:8c4e1841eb30 44
fblanc 0:8c4e1841eb30 45 #include <string>
fblanc 0:8c4e1841eb30 46 string ow_show_id( uint8_t id[]);
fblanc 0:8c4e1841eb30 47
fblanc 0:8c4e1841eb30 48 uint8_t search_sensors(uint8_t *nSensors,uint8_t id[][OW_ROMCODE_SIZE] );
fblanc 0:8c4e1841eb30 49 uint8_t search_sensors(uint8_t n,uint8_t *nSensors,uint8_t gSensorIDs[][MAXSENSORS][OW_ROMCODE_SIZE] );
fblanc 0:8c4e1841eb30 50 uint8_t ow_PullUp(void);
fblanc 0:8c4e1841eb30 51 uint8_t ow_PullUp(uint8_t n);
fblanc 0:8c4e1841eb30 52
fblanc 0:8c4e1841eb30 53
fblanc 0:8c4e1841eb30 54 uint8_t ow_test_pin (void);
fblanc 0:8c4e1841eb30 55 uint8_t ow_test_pin (uint8_t n);
fblanc 0:8c4e1841eb30 56 uint8_t ow_reset(void);
fblanc 0:8c4e1841eb30 57 uint8_t ow_reset(uint8_t n);
fblanc 0:8c4e1841eb30 58 uint8_t ow_rom_search( uint8_t diff, uint8_t id[] );
fblanc 0:8c4e1841eb30 59 uint8_t ow_rom_search(uint8_t n, uint8_t diff, uint8_t id[] );
fblanc 0:8c4e1841eb30 60 uint8_t ow_command( uint8_t command, uint8_t id[] );
fblanc 0:8c4e1841eb30 61 uint8_t ow_command(uint8_t n, uint8_t command, uint8_t id[] );
fblanc 0:8c4e1841eb30 62 uint8_t ow_find_sensor(uint8_t *diff, uint8_t id[]);
fblanc 0:8c4e1841eb30 63 uint8_t ow_find_sensor(uint8_t n,uint8_t *diff, uint8_t id[]);
fblanc 0:8c4e1841eb30 64 uint8_t ow_parasite_enable(void);
fblanc 0:8c4e1841eb30 65 uint8_t ow_parasite_enable(uint8_t n);
fblanc 0:8c4e1841eb30 66 uint8_t ow_parasite_disable(void);
fblanc 0:8c4e1841eb30 67 uint8_t ow_parasite_disable(uint8_t n);
fblanc 0:8c4e1841eb30 68 uint8_t ow_bit_io( uint8_t b );
fblanc 0:8c4e1841eb30 69 uint8_t ow_bit_io(uint8_t n, uint8_t b);
fblanc 0:8c4e1841eb30 70 uint8_t ow_byte_wr( uint8_t b );
fblanc 0:8c4e1841eb30 71 uint8_t ow_byte_wr(uint8_t n, uint8_t b );
fblanc 0:8c4e1841eb30 72 uint8_t ow_byte_rd( void );
fblanc 0:8c4e1841eb30 73 uint8_t ow_byte_rd( uint8_t n);
fblanc 0:8c4e1841eb30 74
fblanc 0:8c4e1841eb30 75
fblanc 0:8c4e1841eb30 76 #endif