一网友问:小弟自己设计一个电路,用的这片子,开始还好。用过一段时间后,程序就下载不进去了。一检查过jtag线路绝对联通。编程软件也都重装过了。还是不行。
该网友未提供更详细的资料。这种情况,有可能是什么原因?
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