我用J-LINK下载.hex文件时，先 点 connect，连接上了，检测到了MCU：STM32F103RB，然后点 auto,下载程序时，出现了：
RAM check failed @ address 0x20000078.
Write:0xD1F64293 20006025
Read: 0x07EE08A2 080208B3
(120 bytes of RAM have been checked successfully)
Failed to erase chip
Failed to auto program target
出现了这样的警告啊，程序下载不了，请问是什么问题啊？ |
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楼主
