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.
交叉实验,先在别的板子上试试SD卡有没有问题
是否可以提供SD卡的原理图?连接的引脚是接到MMC0吗?还有CD的引脚接法是?