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用IAR硬件调试430串口,与单独上电后调试串口所遇到的问题



请问一下:我在用IAR硬件调试430串口时,硬件下载并调试仿真用串口发送数据,430会返回数值,但是我退出后给它上电来调试串口发送数据却没有响应,请问有人遇到这个问题了吗 应该怎么解决