Dependencies: USBDevice
OT07_lib.h@32:51535920edd1, 2021-12-29 (annotated)
- Committer:
- walterluu
- Date:
- Wed Dec 29 06:43:21 2021 +0000
- Revision:
- 32:51535920edd1
PICO_OT07_Firmware;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
walterluu | 32:51535920edd1 | 1 | #include "mbed.h" |
walterluu | 32:51535920edd1 | 2 | |
walterluu | 32:51535920edd1 | 3 | //OT07 Registers |
walterluu | 32:51535920edd1 | 4 | #define OT07_STATUS 0x00 // OT07 status regiter |
walterluu | 32:51535920edd1 | 5 | #define OT07_INT_EN 0x01 // OT07 Interrupt Enable |
walterluu | 32:51535920edd1 | 6 | #define OT07_FIFO_W 0x04 // OT07 FIFO Write Pointer |
walterluu | 32:51535920edd1 | 7 | #define OT07_FIFO_R 0x05 // OT07 FIFO Read Pointer |
walterluu | 32:51535920edd1 | 8 | #define OT07_FIFO_OF 0x06 // OT07 FIFO Overflow Counter |
walterluu | 32:51535920edd1 | 9 | #define OT07_FIFO_COUNT 0x07 // OT07 FIFO Data Count |
walterluu | 32:51535920edd1 | 10 | #define OT07_FIFO_DATA 0x08 // OT07 FIFO Data |
walterluu | 32:51535920edd1 | 11 | #define OT07_FIFO_CNFG1 0x09 // OT07 FIFO Configuration 1 (FIFO_A_FULL) |
walterluu | 32:51535920edd1 | 12 | #define OT07_FIFO_CNFG2 0x0A // OT07 FIFO Configuration 2 |
walterluu | 32:51535920edd1 | 13 | #define OT07_SYS 0x0C // OT07 System Configuration |
walterluu | 32:51535920edd1 | 14 | #define OT07_ALARM_HIGH_MSB 0x10 // OT07 Alarm High MSB |
walterluu | 32:51535920edd1 | 15 | #define OT07_ALARM_HIGH_LSB 0x11 // OT07 Alarm High LSB |
walterluu | 32:51535920edd1 | 16 | #define OT07_ALARM_LOW_MSB 0x12 // OT07 Alarm Low MSB |
walterluu | 32:51535920edd1 | 17 | #define OT07_ALARM_LOW_LSB 0x13 // OT07 Alarm LOW LSB |
walterluu | 32:51535920edd1 | 18 | #define OT07_ADC_SETUP 0x14 // OT07 Temp Seneor Setup (ADC_RES[7:6]) & Convert Temperature [0] |
walterluu | 32:51535920edd1 | 19 | #define OT07_GPIO_SETUP 0x20 // OT07 GPIO Setup, sets GPIO modes |
walterluu | 32:51535920edd1 | 20 | #define OT07_GPIO_CTRL 0x21 // OT07 GPIO control |
walterluu | 32:51535920edd1 | 21 | #define OT07_ROM_ID 0x31 // OT07 ROM_ID address of LSB? |
walterluu | 32:51535920edd1 | 22 | |
walterluu | 32:51535920edd1 | 23 | #define DEVICE_ACK 0 |
walterluu | 32:51535920edd1 | 24 | #define DEVICE_NACK 1 |
walterluu | 32:51535920edd1 | 25 | #define DEVICE_BAD_RESP 2 |
walterluu | 32:51535920edd1 | 26 | |
walterluu | 32:51535920edd1 | 27 | #define MAX_DEVICES 64 // Maximum number of rom devices allowed |
walterluu | 32:51535920edd1 | 28 | #define ID_LENGTH 6 // Rom ID length in bytes |
walterluu | 32:51535920edd1 | 29 | |
walterluu | 32:51535920edd1 | 30 | struct OT07_struct { |
walterluu | 32:51535920edd1 | 31 | char rom_id[ID_LENGTH]; // device ROM ID |
walterluu | 32:51535920edd1 | 32 | char I2C_address; // I2C addess, based on GPIO0 and GPIO1 at power up |
walterluu | 32:51535920edd1 | 33 | // Why char? |
walterluu | 32:51535920edd1 | 34 | }; |
walterluu | 32:51535920edd1 | 35 | |
walterluu | 32:51535920edd1 | 36 | struct TempResponse { |
walterluu | 32:51535920edd1 | 37 | double tempC; // Temperature in °C |
walterluu | 32:51535920edd1 | 38 | int status; // Status of Temperature read. 0 for success, 1 for error |
walterluu | 32:51535920edd1 | 39 | }; |
walterluu | 32:51535920edd1 | 40 | |
walterluu | 32:51535920edd1 | 41 | // ***************************************************************************** |
walterluu | 32:51535920edd1 | 42 | // OT07_write_register(char, char, char) writes single byte to OT07 |
walterluu | 32:51535920edd1 | 43 | // char I2C address |
walterluu | 32:51535920edd1 | 44 | // char OT07 register address |
walterluu | 32:51535920edd1 | 45 | // char data byte to be writen |
walterluu | 32:51535920edd1 | 46 | // returns 0 on success ACK, 1 on NACK |
walterluu | 32:51535920edd1 | 47 | // ***************************************************************************** |
walterluu | 32:51535920edd1 | 48 | int OT07_write_register(I2C *i2c, char I2C_add, char reg_add, char byte); |
walterluu | 32:51535920edd1 | 49 | |
walterluu | 32:51535920edd1 | 50 | /// **************************************************************************** |
walterluu | 32:51535920edd1 | 51 | // OT07_write_register(char, char, char *, int) writes multiple bytes to OT07 |
walterluu | 32:51535920edd1 | 52 | // char I2C address |
walterluu | 32:51535920edd1 | 53 | // char OT07 register address |
walterluu | 32:51535920edd1 | 54 | // char * data vector of bytes to be written |
walterluu | 32:51535920edd1 | 55 | // int number of bytes to write |
walterluu | 32:51535920edd1 | 56 | // returns 0 on success ACK, 1 on NACK |
walterluu | 32:51535920edd1 | 57 | // ***************************************************************************** |
walterluu | 32:51535920edd1 | 58 | int OT07_write_register(I2C *i2c, char I2C_add, char reg_add, char *bytes, int n); |
walterluu | 32:51535920edd1 | 59 | |
walterluu | 32:51535920edd1 | 60 | // ***************************************************************************** |
walterluu | 32:51535920edd1 | 61 | // OT07_read_register(char, char, char *, int) writes single byte to OT07 |
walterluu | 32:51535920edd1 | 62 | // char I2C address |
walterluu | 32:51535920edd1 | 63 | // char OT07 register address |
walterluu | 32:51535920edd1 | 64 | // char * data vector for read bytes to be stored in |
walterluu | 32:51535920edd1 | 65 | // int number of bytes to read |
walterluu | 32:51535920edd1 | 66 | // returns 0 on success, 1 on fail |
walterluu | 32:51535920edd1 | 67 | // ***************************************************************************** |
walterluu | 32:51535920edd1 | 68 | int OT07_read_register(I2C *i2c, char I2C_add, char reg_add, char *bytes, int n); |
walterluu | 32:51535920edd1 | 69 | |
walterluu | 32:51535920edd1 | 70 | // ***************************************************************************** |
walterluu | 32:51535920edd1 | 71 | // convert_temperature(char) sends convert command to OT07 device |
walterluu | 32:51535920edd1 | 72 | // char I2C address |
walterluu | 32:51535920edd1 | 73 | // ***************************************************************************** |
walterluu | 32:51535920edd1 | 74 | void convert_temperature(I2C *i2c, char I2C_add); |
walterluu | 32:51535920edd1 | 75 | |
walterluu | 32:51535920edd1 | 76 | //****************************************************************************** |
walterluu | 32:51535920edd1 | 77 | // get_temperature(char) read temperature from OT07 device FIFO register |
walterluu | 32:51535920edd1 | 78 | // char I2C address |
walterluu | 32:51535920edd1 | 79 | // returns TempResponse tempC = temperature in oC |
walterluu | 32:51535920edd1 | 80 | // status = register read result |
walterluu | 32:51535920edd1 | 81 | //****************************************************************************** |
walterluu | 32:51535920edd1 | 82 | TempResponse get_temperature(I2C *i2c, char I2C_add); |