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45#ifdef SPI_WAITFORTxREADY
46#define SPI_WAITFORTx_BEFORE() SPI_WAITFORTxREADY()
47#define SPI_WAITFORTx_AFTER()
48#define SPI_WAITFORTx_ENDED() SPI_WAITFOREOTx()
50#define SPI_WAITFORTx_BEFORE()
51#define SPI_WAITFORTx_AFTER() SPI_WAITFOREOTx()
52#define SPI_WAITFORTx_ENDED()
55extern unsigned char spi_busy;
60#define SPI_WRITE(data) \
62 SPI_WAITFORTx_BEFORE(); \
69#define SPI_WRITE_FAST(data) \
71 SPI_WAITFORTx_BEFORE(); \
73 SPI_WAITFORTx_AFTER(); \
77#define SPI_READ(data) \