No Cortex-M Device found in JTAG chain
2014-04-16 01:27
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原因:烧录的程序关闭了JTAg功能,复用了JTAG的接口,导致JTAG不能正常使用。需要使用串口下载一个程序,此程序没有关闭JTAG即可,然后就可以正常重新使用JTAG。
1、先把BOOT0上拉,BOOT1下拉,配置成串口下载模式。
2、使用串口软件下载程序或者擦除程序,软件如eisp。
3、重新把BOOT0下拉即可恢复JTAG功能。
1、先把BOOT0上拉,BOOT1下拉,配置成串口下载模式。
2、使用串口软件下载程序或者擦除程序,软件如eisp。
3、重新把BOOT0下拉即可恢复JTAG功能。
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