0,0 → 1,77 |
#ifndef I2C1_H |
#define I2C1_H |
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#define MAXI2C1BUF 32 |
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// I2C Operating Speed |
#define I2C1_400KHZ 0x0 |
#define I2C1_100KHZ 0x1 |
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// 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 |
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// Operating Mode |
#define I2C1_MODE_SLAVE 0x10 |
#define I2C1_MODE_MASTER 0x11 |
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// Master Status |
#define I2C1_MASTER_SEND 0x20 |
#define I2C1_MASTER_RECV 0x21 |
#define I2C1_MASTER_RESTART 0x22 |
#define I2C1_MASTER_IDLE 0x23 |
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// 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 |
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typedef struct { |
uint8_t buffer_in[MAXI2C1BUF]; |
uint32_t buffer_in_len; |
uint32_t buffer_in_read_ind; |
uint32_t buffer_in_write_ind; |
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uint8_t buffer_out[MAXI2C1BUF]; |
uint32_t buffer_out_len; |
uint32_t buffer_out_ind; |
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uint8_t operating_state; |
uint8_t return_status; |
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uint8_t master_dest_addr; |
uint8_t master_status; |
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uint8_t slave_in_last_byte; |
uint8_t slave_sending_data; |
} I2C1_DATA; |
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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); |
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#endif /* I2C1_H */ |
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