This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
用28377D的MCBSP扩展为SPI和CPLD进行通信，DSP为主机，CPLD为从机（只有一个从机），片选，CLK和发送都没有问题，通过示波器也可以看到CPLD发送给DSP的数据也没有问题，但是DSP的DRR1里面总是显示0xFF，
