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.
如果楼主是自己画的板子,就要查看一下是否有虚焊之类的,。
如果是购买的板子,要看看驱动是否与电脑系统对应。
使用其他 jtag测试一下,
最后在测试板子自带例程是否有用的