i2c_master.h 1.1 KB

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  1. /* Library made by: g4lvanix
  2. * Github repository: https://github.com/g4lvanix/I2C-master-lib
  3. */
  4. #ifndef I2C_MASTER_H
  5. #define I2C_MASTER_H
  6. #define I2C_READ 0x01
  7. #define I2C_WRITE 0x00
  8. typedef int16_t i2c_status_t;
  9. #define I2C_STATUS_SUCCESS (0)
  10. #define I2C_STATUS_ERROR (-1)
  11. #define I2C_STATUS_TIMEOUT (-2)
  12. #define I2C_TIMEOUT_IMMEDIATE (0)
  13. #define I2C_TIMEOUT_INFINITE (0xFFFF)
  14. void i2c_init(void);
  15. i2c_status_t i2c_start(uint8_t address, uint16_t timeout);
  16. i2c_status_t i2c_write(uint8_t data, uint16_t timeout);
  17. int16_t i2c_read_ack(uint16_t timeout);
  18. int16_t i2c_read_nack(uint16_t timeout);
  19. i2c_status_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
  20. i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
  21. i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
  22. i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
  23. i2c_status_t i2c_stop(uint16_t timeout);
  24. #endif // I2C_MASTER_H