emresensoy 发布的最佳帖子

SOLVED,

I used a device to sniff UART between F133 and slave device,
Its RTS CTS line corrupted, so I removed it and everything ok now,

thanks for your kind help

This is the output of your code, when the flow control enabled, there is no UART1 output even if CTS=0,

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if I disable CRTSCTS flow control, it pushes data to UART1 but no RTS