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1.28062的fifo发送中断触发级别如果设置为4的时候一直进入中断,请问如果想每次发送四个16位数据再进入中断是不是需要将发送触发级别设置为0?即
SpibRegs.SPIFFTX.all=0xC020; // Enable FIFO's, set TX FIFO level to 4
SpibRegs.SPIFFRX.all=0x0024; // Set RX FIFO level to 4
2.级别如果设置为0,空闲状态如何避免一直进入发送中断此时却没有数据需要发送?