AD有四个采样通道 每次通过SPI的发送引脚给AD发送状态字来选择通道 SpiaRegs.SPITXBUFF=0xXXXX;然后AD连续发送16位二进制数给SPI的输入引脚;这之后spi就是进不去中断,我仔细的检查了一下SPI 的初始化设置,应该没什么问题。我查看了中断标志位也置1了,但是中断中的语句没有执行;
望好心人指点
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