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ben-wpan/atusb/fw3/spi.h

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#ifndef SPI_H
#define SPI_H
#include <stdint.h>
void spi_begin(void);
uint8_t spi_io(uint8_t v);
void spi_end(void);
void spi_init(void);
#define spi_send(v) (void) spi_io(v)
#define spi_recv(v) spi_io(0)
#endif /* !SPI_H */