Packages

beagle_pru_support

0.7.3
0.7.3 0.7.1

Basic library that enables easy interaction with the PRU cores present in the BeagleBone Black.

HexDocs

Current section

Files

Jump to
Readme
2 Versions
4 Dependencies
0 Dependants
Files
Activity
beagle_pru_support pru include spi-devs.h
Raw

pru/include/spi-devs.h 



#ifndef _SOFTWARE_SPI_DEVS__



/* #define PRU_SUPPORT_OVERRIDE_GPIO_FUNCS */



#include <pru_support_lib.h>



struct SpiPins {

  uint16_t miso;

  uint16_t mosi;

  uint16_t sck;

  bool sck_dir;

};



struct SpiTimings {

  uint8_t pre;

  uint8_t c0;

  uint8_t c1;

  uint8_t post;

};



typedef struct SpiPins SpiPins_t;

typedef struct SpiTimings SpiTimings_t;



extern uint32_t spi_xfer_cpha0(uint32_t data, uint8_t bit_count, SpiPins_t pins, SpiTimings_t timings);

extern  uint32_t spi_xfer_cpha1(uint32_t data, uint8_t bit_count, SpiPins_t pins, SpiTimings_t timings);



// override definition by defining `SPI_CUSTOM_TIMING_CALLBACK`

extern void spi_delay(uint32_t time);





#endif // _SOFTWARE_SPI_DEVS__