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@wl1111 确认下连线是否正确 SWD接口速率降低些 SWD接口的IO不能被复用，点设置的时候可以按下复位试试
@zr JLINK上的SWCLK接PC6 SWDIO接PC7 GND接地。内部没有程序，已经使用串口烧录工具把flash擦除了
@zr 速率降到2M了
@wl1111 确定接对了？ 这么插试试
@wl1111 再不行就，更新成最新的jlink驱动
@zr Jlink驱动刚刚更新到最新了
