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CC2642R: 调用UART串口写字符串时,引脚无波形输出

Part Number: CC2642R
Other Parts Discussed in Thread: SYSCONFIG, SIMPLELINK-CC13XX-CC26XX-SDK, LAUNCHXL-CC26X2R1

sysconfig中uart相关配置

simple_central.c中相关代码如下,引脚25接了LED,循环时灯会闪烁但是uart tx完全没有波形,换过几个引脚作为tx都没有波形。

请问我的代码和设置中哪里存在错误吗