0,0 → 1,81 |
#ifndef I2C_H |
#define I2C_H |
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#define MAXI2CBUF 32 |
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// I2C Operating Speed |
#define I2C_400KHZ 0x0 |
#define I2C_100KHZ 0x1 |
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// 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 |
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// Operating Mode |
#define I2C_MODE_SLAVE 0x10 |
#define I2C_MODE_MASTER 0x11 |
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// Master Status |
#define I2C_MASTER_SEND 0x20 |
#define I2C_MASTER_RECV 0x21 |
#define I2C_MASTER_RESTART 0x22 |
#define I2C_MASTER_IDLE 0x23 |
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// Return Status |
#define I2C_SEND_OK 0x30 |
#define I2C_SEND_FAIL 0x31 |
#define I2C_RECV_OK 0x32 |
#define I2C_RECV_FAIL 0x33 |
#define I2C_DATA_AVAL 0x34 |
#define I2C_ERR_NOADDR 0x35 |
#define I2C_ERR_OVERRUN 0x36 |
#define I2C_ERR_NODATA 0x37 |
#define I2C_ERR_BUFFER_OVERRUN 0x38 |
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typedef struct { |
char buffer_in[MAXI2CBUF]; |
char buffer_in_len; |
char buffer_in_len_tmp; |
char buffer_in_read_ind; |
char buffer_in_write_ind; |
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char buffer_out[MAXI2CBUF]; |
char buffer_out_len; |
char buffer_out_ind; |
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char operating_mode; |
char operating_state; |
char return_status; |
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char master_dest_addr; |
char master_status; |
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char slave_in_last_byte; |
char slave_sending_data; |
} I2C_DATA; |
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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); |
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#endif |