thirdparty/wireless/SmartConnect_6LoWPAN/core/dev/spi.h File Reference

    Basic SPI macros

Author

Joakim Eriksson joaki.nosp@m.me@s.nosp@m.ics.s.nosp@m.e Niclas Finne nfi@s.nosp@m.ics..nosp@m.se

Macros
#define	SPI_FLUSH()
#define	SPI_READ(data)
#define	SPI_WAITFORTx_AFTER()   SPI_WAITFOREOTx()
#define	SPI_WAITFORTx_BEFORE()
#define	SPI_WAITFORTx_ENDED()
#define	SPI_WRITE(data)
#define	SPI_WRITE_FAST(data)

Functions
void	spi_init (void)

Variables
unsigned char	spi_busy

#define SPI_FLUSH

(

)

Value:

do {              \
    SPI_RXBUF;      \
  } while(0);

#define SPI_READ

(

data

)

Value:

do {                   \
    SPI_TXBUF = 0;       \
    SPI_WAITFOREORx();   \
    data = SPI_RXBUF;    \
  } while(0)

#define SPI_WAITFORTx_AFTER

(

)

SPI_WAITFOREOTx()

#define SPI_WAITFORTx_BEFORE

(

)

#define SPI_WAITFORTx_ENDED

(

)

#define SPI_WRITE

(

data

)

Value:

do {                                          \
    SPI_WAITFORTx_BEFORE();                     \
    SPI_TXBUF = data;                           \
    SPI_WAITFOREOTx();                          \
  } while(0)

#define SPI_WRITE_FAST

(

data

)

Value:

do {                                          \
    SPI_WAITFORTx_BEFORE();                     \
    SPI_TXBUF = data;                           \
    SPI_WAITFORTx_AFTER();                      \
  } while(0)

void spi_init

(

void

)

unsigned char spi_busy