| 0,0 → 1,80 |
|---|
| #ifndef I2C1_H |
| #define I2C1_H |
| |
| #define MAXI2C1BUF 32 |
| |
| // I2C Operating Speed |
| #define I2C1_100KHZ 0x0 |
| #define I2C1_200KHZ 0x1 |
| #define I2C1_400KHZ 0x2 |
| #define I2C1_1MHZ 0x3 |
| |
| // Operating State |
| #define I2C1_IDLE 0x1 |
| //#define I2C1_STARTED 0x2 |
| #define I2C1_RCV_DATA 0x3 |
| //#define I2C1_SEND_DATA 0x4 |
| #define I2C1_SEND_ADDR 0x5 |
| #define I2C1_SEND_ADDR_2 0x6 |
| #define I2C1_CHECK_ACK_SEND 0x7 |
| #define I2C1_CHECK_ACK_RECV 0x8 |
| #define I2C1_CHECK_ACK_RESTART 0x9 |
| #define I2C1_REQ_DATA 0xA |
| #define I2C1_SEND_STOP 0xB |
| //#define I2C1_SEND_START 0xC |
| #define I2C1_STOPPED 0xD |
| |
| // Operating Mode |
| #define I2C1_MODE_SLAVE 0x10 |
| #define I2C1_MODE_MASTER 0x11 |
| |
| // Master Status |
| #define I2C1_MASTER_SEND 0x20 |
| #define I2C1_MASTER_RECV 0x21 |
| #define I2C1_MASTER_RESTART 0x22 |
| #define I2C1_MASTER_IDLE 0x23 |
| |
| // Return Status |
| #define I2C1_SEND_OK 0x30 |
| #define I2C1_SEND_FAIL 0x31 |
| #define I2C1_RECV_OK 0x32 |
| #define I2C1_RECV_FAIL 0x33 |
| #define I2C1_DATA_AVAL 0x34 |
| #define I2C1_ERR_NOADDR 0x35 |
| #define I2C1_ERR_OVERRUN 0x36 |
| #define I2C1_ERR_NODATA 0x37 |
| #define I2C1_ERR_BUFFER_OVERRUN 0x38 |
| |
| typedef struct { |
| uint8_t buffer_in[MAXI2C1BUF]; |
| uint32_t buffer_in_len; |
| uint32_t buffer_in_read_ind; |
| uint32_t buffer_in_write_ind; |
| |
| uint8_t buffer_out[MAXI2C1BUF]; |
| uint32_t buffer_out_len; |
| uint32_t buffer_out_ind; |
| |
| uint8_t operating_state; |
| uint8_t return_status; |
| |
| uint8_t master_dest_addr; |
| uint8_t master_status; |
| |
| uint8_t slave_in_last_byte; |
| uint8_t slave_sending_data; |
| } I2C1_DATA; |
| |
| void I2C1_Init(I2C1_DATA *data, uint8_t speed, uint8_t address); |
| void I2C1_Master_Send(uint8_t address, uint8_t *msg, uint32_t length); |
| void I2C1_Master_Recv(uint8_t address, uint32_t length); |
| void I2C1_Master_Restart(uint8_t address, uint8_t msg, uint32_t length); |
| void I2C1_Interrupt_Master(void); |
| void I2C1_Interrupt_Slave(void); |
| uint8_t I2C1_Get_Status(void); |
| uint8_t I2C1_Buffer_Len(void); |
| uint8_t I2C1_Read_Buffer(uint8_t *buffer); |
| uint8_t I2C1_Process_Request(uint8_t); |
| |
| #endif /* I2C1_H */ |
| |