已解决 73482 个问题
已帮助 5993 位优秀工程师

stm32芯片被上锁的解决方法

lixiang 2019-09-10 浏览量：1999

调试程序，突然程序无法下载了，窗口显示如下图所示信息：
mg id="aimg_148859" aid="148859" src="http://www.openedv.com/data/attachment/forum/201909/06/204611xju77iuazjja44l7.png" data-ke-src="http://www.openedv.com/data/attachment/forum/201909/06/204611xju77iuazjja44l7.png" zoomfile="data/attachment/forum/201909/06/204611xju77iuazjja44l7.png" file="data/attachment/forum/201909/06/204611xju77iuazjja44l7.png" class="zoom" data-ke-onclick="zoom(this this.src 0 0 0)" width="1024">
其中有一句话：**Jlink Warning: T-bit of XPSR is 0 but should be 1. Changed to 1.，上网搜索，感觉是单片机的Flash被锁住了，尝试Jlink解锁工具进行如下图所示操作：
mg id="aimg_148860" aid="148860" src="http://www.openedv.com/data/attachment/forum/201909/06/204815lajzzyycm5deqa05.png" data-ke-src="http://www.openedv.com/data/attachment/forum/201909/06/204815lajzzyycm5deqa05.png" zoomfile="data/attachment/forum/201909/06/204815lajzzyycm5deqa05.png" file="data/attachment/forum/201909/06/204815lajzzyycm5deqa05.png" class="zoom" data-ke-onclick="zoom(this this.src 0 0 0)" width="1024"> mg id="aimg_148861" aid="148861" src="http://www.openedv.com/data/attachment/forum/201909/06/204925xgxxftchqg4bhv0l.png" data-ke-src="http://www.openedv.com/data/attachment/forum/201909/06/204925xgxxftchqg4bhv0l.png" zoomfile="data/attachment/forum/201909/06/204925xgxxftchqg4bhv0l.png" file="data/attachment/forum/201909/06/204925xgxxftchqg4bhv0l.png" class="zoom" data-ke-onclick="zoom(this this.src 0 0 0)" width="1024">
再次下载程序，不能成功，求大神指导，万分感谢！！！