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- #ifndef I2C_H
- #define I2C_H
-
- #include <stdint.h>
-
- #ifndef F_CPU
- #define F_CPU 16000000UL
- #endif
-
- #define I2C_READ 1
- #define I2C_WRITE 0
-
- #define I2C_ACK 1
- #define I2C_NACK 0
-
- #define SLAVE_BUFFER_SIZE 0x10
-
- // i2c SCL clock frequency
- #define SCL_CLOCK 100000L
-
- extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
-
- void i2c_master_init(void);
- uint8_t i2c_master_start(uint8_t address);
- void i2c_master_stop(void);
- uint8_t i2c_master_write(uint8_t data);
- uint8_t i2c_master_read(int);
- void i2c_reset_state(void);
- void i2c_slave_init(uint8_t address);
-
- #endif
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