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SPI手册中写的是SPI发送接收的FIFO 为16*16.但是如何设定用FIFO0还是FIFO15呢?现在只能传16bie的呀。求解
FIFO是一组buffer,接受时可以将收到的数据一个一个放到从FIFO0到FIFO15中。发送时将FIFO0到FIFO15的数据依次发送。
控制发8bit还是16bit的数据是SPI Configuration Control Register的SPI CHAR3-0