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SPIFFTX寄存器设置问题



SpiaRegs.SPIFFTX.all=0xC022; // Enable FIFO's, set TX FIFO level to 2
SpiaRegs.SPIFFRX.all=0x0022; // Set RX FIFO level to 2

controlsuit里面的关于SPI设置的,我看到SpiaRegs.SPIFFTX.TXFFIENA也就是SPIFFTX寄存器的第5位,这里是设置为0的。

可是可是为0不是把中断功能禁止了吗?