问答21ic问答首页 - m0518,spi怎么连外设
m0518,spi怎么连外设
求救大佬，新唐m0518，spi怎么读写一个字节，
我这样不行，
u1_t hwspi_ReadWriteByte(u1_t TxData)
{
uint8_t Data = 0;
SPI_WRITE_TX(SPI0,TxData);
while(SPI_IS_BUSY(SPI0));
SPI_TRIGGER(SPI0);
Data = SPI_READ_RX(SPI0);
return Data;
}
我这样不行，
u1_t hwspi_ReadWriteByte(u1_t TxData)
{
uint8_t Data = 0;
SPI_WRITE_TX(SPI0,TxData);
while(SPI_IS_BUSY(SPI0));
SPI_TRIGGER(SPI0);
Data = SPI_READ_RX(SPI0);
return Data;
}
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