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28335 McBSP-B 配置成SPI遇到问题



程序是McBSP-A通道改了寄存器,A通道都是好用的,改成B通道就不好用了,收不到应答,也发不出。

想咨询一下,是不是在软件其他的地方需要配置一下,或者是硬件方面需要配置才能实现B口通讯?