thebears/wheel_rfm69_counter
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

YACWC

Browse Source
This commit is contained in:
Ishan S. Patel
2026-08-31 22:43:51 -04:00
commit c87308caca
521 changed files with 141326 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
avr_code.backup/i2c.h
+53
View File
@@ -0,0 +1,53 @@
#include "defines.h"
#include <avr/io.h>
#define I2C_START_WRITE(device_addr) \
{ \
if (i2c_start((device_addr << 1) | 0x00)) { \
return 1; \
} \
}
#define I2C_START_READ(device_addr) \
{ \
if (i2c_start((device_addr << 1) | 0x01)) { \
return 1; \
} \
}
#ifndef i2c_H
#define i2c_H
#define TWSR TWSR0
#define TWDR TWDR0
#define TWBR TWBR0
#define TWCR TWCR0
void i2c_init();
uint8_t i2c_start(uint8_t address);
uint8_t write_one_byte(uint8_t device_addr, uint8_t register_addr,
uint8_t data);
uint8_t write_n_bytes(uint8_t device_addr, uint8_t register_addr, uint8_t *data,
uint8_t n_bytes);
uint8_t read_one_byte_16bit_addr_no_err_register(uint8_t device_addr, uint16_t register_addr);
uint8_t read_one_byte_16bit_addr(uint8_t device_addr, uint16_t register_addr,
uint8_t *data);
uint8_t read_n_bytes_16bit_addr(uint8_t device_addr, uint16_t register_addr, uint8_t *data,
uint8_t n_bytes);
uint8_t read_one_byte_no_err_register(uint8_t device_addr, uint8_t register_addr);
uint8_t read_one_byte(uint8_t device_addr, uint8_t register_addr,
uint8_t *data);
uint8_t read_n_bytes(uint8_t device_addr, uint8_t register_addr, uint8_t *data,
uint8_t n_bytes);
void i2c_stop();
void i2c_scan();
uint8_t i2c_read_ack();
uint8_t i2c_read_nack();
uint8_t i2c_write(uint8_t data);
#endif