| 0,0 → 1,83 |
|---|
| #ifndef I2C_H |
| #define I2C_H |
| |
| #define I2C_BUFFER_SIZE 20 |
| |
| // I2C Operating Speed |
| #define I2C_400KHZ 0x0 |
| #define I2C_100KHZ 0x1 |
| |
| // Operating State |
| #define I2C_IDLE 0x1 |
| #define I2C_STARTED 0x2 |
| #define I2C_RCV_DATA 0x3 |
| #define I2C_SEND_DATA 0x4 |
| #define I2C_SEND_ADDR 0x5 |
| #define I2C_SEND_ADDR_2 0x6 |
| #define I2C_CHECK_ACK_SEND 0x7 |
| #define I2C_CHECK_ACK_RECV 0x8 |
| #define I2C_CHECK_ACK_RESTART 0x9 |
| #define I2C_REQ_DATA 0xA |
| #define I2C_SEND_STOP 0xB |
| #define I2C_SEND_START 0xC |
| |
| // Operating Mode |
| #define I2C_MODE_SLAVE 0x10 |
| #define I2C_MODE_MASTER 0x11 |
| |
| // Master Status |
| #define I2C_MASTER_SEND 0x20 |
| #define I2C_MASTER_RECV 0x21 |
| #define I2C_MASTER_RESTART 0x22 |
| #define I2C_MASTER_IDLE 0x23 |
| |
| // Return Status (Master) |
| #define I2C_SEND_OK 0x30 |
| #define I2C_SEND_FAIL 0x31 |
| #define I2C_RECV_OK 0x32 |
| #define I2C_RECV_FAIL 0x33 |
| |
| // Return Status (Slave) |
| #define I2C_DATA_AVAL 0x34 |
| #define I2C_ERR_NOADDR 0x35 |
| #define I2C_ERR_OVERRUN 0x36 |
| #define I2C_ERR_NODATA 0x37 |
| |
| typedef struct { |
| char buffer_in[I2C_BUFFER_SIZE]; |
| char buffer_in_len; |
| char buffer_in_len_tmp; |
| char buffer_in_read_ind; |
| char buffer_in_write_ind; |
| |
| char buffer_out[I2C_BUFFER_SIZE]; |
| char buffer_out_len; |
| char buffer_out_ind; |
| |
| char operating_mode; |
| char operating_state; |
| char return_status; |
| |
| char master_dest_addr; |
| char master_status; |
| |
| char slave_in_last_byte; |
| char slave_sending_data; |
| } I2C_DATA; |
| |
| void I2C_Init(I2C_DATA *data); |
| void I2C_Interrupt_Handler(void); |
| void I2C_Interrupt_Slave(void); |
| void I2C_Interrupt_Master(void); |
| void I2C_Configure_Slave(char); |
| void I2C_Configure_Master(char speed); |
| void I2C_Master_Send(char address, char length, char *msg); |
| void I2C_Master_Recv(char address, char length); |
| void I2C_Master_Restart(char address, char msg, char length); |
| char I2C_Get_Status(void); |
| char I2C_Buffer_Len(void); |
| char I2C_Read_Buffer(char *buffer); |
| char I2C_Process_Send(char); |
| |
| #endif /* I2C_H */ |
| |