-#ifndef I2C_H
-#define I2C_H
+#pragma once
#include <stdint.h>
#define SLAVE_BUFFER_SIZE 0x10
-// i2c SCL clock frequency
+// i2c SCL clock frequency 400kHz
#define SCL_CLOCK 400000L
extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
extern unsigned char i2c_read(unsigned char ack);
#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
-
-#endif