This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

C6747UART2只能发送数据 不能接收数据



用C6747UART2调试485  发现只能发送数据  不能接收数据  已经用示波器测过接收引脚是有波形输入的。。。。         我也把接收引脚R4当做gpio配置后让其输出信号,也是可以用示波器观测到的。。。。。          但是就不能接收到信号,希望各位能指导一下 谢谢

RS485.7z