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LAUNCHCC3235MOD: launchcc3235mod开发板如何设置Uart引脚?

Part Number: LAUNCHCC3235MOD
Other Parts Discussed in Thread: CC3235SF

不想通过XDS110 UART进行输出,所以想修改syscfg文件,在uartecho_CC3235SF_LAUNCHXL_tirtos_ccs例程中,将UART引脚变为P3和P45.设置如下图。

打开串口可以接受到数据,但是发送数据后没有,接收不到。

请教各位我修改的syscfg文件是否正确?还需要做什么其他的设置吗?