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用串口调试助手查看USART通讯发送数据, 打开了串口调试助手,但是在连接openmv的时候IDE显示正在连接(如果连接超过5秒钟请断开),很长时间都连不上。取消之后显示错误:拒绝访问1
串口调试助手连接串口调试扩展板或者是TTL模块的COM,不能连接OpenMV的COM。
串口调试助手
串口调试扩展板
TTL模块