请问下，关于stm32   option bytes

[img]file:///C:\Users\xu\AppData\Roaming\Tencent\Users\290507124\QQ\WinTemp\RichOle\)MGDN`8T6Y@TXF(%98@W17K.png[/img]The option bytes are used to write-protect the memory (with 4 KB granularity) and/or
readout-protect the whole memory with the following options:
– Level 0: no readout protection
– Level 1: memory readout protection, the Flash memory cannot be read from or
written to if either debug features are connected or boot in RAM is selected
– Level 2: chip readout protection, debug features (Cortex®-M0 serial wire) and
boot in RAM selection disabled

中，Level 1与Level 2 的区别。

Level 2 打开后，如果修改程序，flash还能擦除吗？

我没试过，不过听说Level2打开后，这个芯片就相当于固定了，没法再写程序了！！！

MrJiu 发表于 2017-7-7 13:55
我没试过，不过听说Level2打开后，这个芯片就相当于固定了，没法再写程序了！！！ ...

谢谢！