完整的报错信息是：
ComPort: Can't Initialize Target CPU: **Error**: Serial Communication failed at port: COM65, baud rate:9600! To use serial monitor, please ensure the following prerequisites are satisfied: 1. Make sure the cable is plugged into both the target and the host on the right COM port. 2. Make sure a compatible target side serial monitor is loaded and running on the target device.
补充：跑其他程序时是好使的，但是换了新程序之后就不好使了！仿真器和开发板的供电应该是没有问题的！ |
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