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.

am335x调试emmc时,发送命令CMD1观察示波器有正确发送命令和返回,而SD_RSP寄存器却没有值?

这是什么情况?要先打开哪个寄存器吗?