| 0,0 → 1,42 |
|---|
| #ifndef SPI_H |
| #define SPI_H |
| |
| #define MAXSPIBUF 64 |
| |
| #define SPI2_WRITE_ONLY |
| |
| // Option to use interrupt. If interrupt are used, SPI write does not block but |
| // there is a longer delay between reading/writing data |
| //#define SPI2_USE_INTERRUPT |
| |
| // SPI speed selection |
| #define SPI2_FOSC_64 0b0010 |
| #define SPI2_FOSC_16 0b0001 |
| #define SPI2_FOSC_8 0b1010 |
| #define SPI2_FOSC_4 0b0000 |
| |
| typedef struct { |
| #ifndef SPI2_WRITE_ONLY |
| char buffer_in[MAXSPIBUF]; |
| char buffer_in_read_ind; |
| char buffer_in_write_ind; |
| char buffer_in_len; |
| #endif |
| |
| char buffer_out[MAXSPIBUF]; |
| char buffer_out_ind; |
| char buffer_out_len; |
| } SPI_DATA; |
| |
| void SPI2_Init(SPI_DATA *data, char speed); |
| void SPI2_Write(char *msg, unsigned int length); |
| void SPI2_Write_Repeat(char c, unsigned int length); |
| #ifndef SPI2_WRITE_ONLY |
| void SPI2_Recv_Interrupt_Handler(void); |
| void SPI2_Read(char length); |
| char SPI2_Buffer_Len(void); |
| char SPI2_Read_Buffer(char *buffer); |
| #endif |
| |
| #endif /* SPI_H */ |
| |