stm8烧录失败Failed to initialize communcation with hardware: SWIM error [30200]: ST-Link connection erro

刚上手stm8，我好不容易用IAR编译成功了的一个工程 就出现了这样的警告： Mon Jul 23, 2018 14:38:55: Failed to initialize communcation with hardware: SWIM error [30200]: ST-Link connection error  Mon Jul 23, 2018 14:38:55: Failed to lo

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