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需要使用uart_A0，P4.3,P4.4可以吗，该如何配置呢？
配置的话，您可以参考例程
https://dev.ti.com/tirex/explore/node?node=AAA0cv-mSGNbvGcZLylxxw__IOGqZri__LATEST
已解决，感谢。
GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_P4, GPIO_PIN3 + GPIO_PIN4, GPIO_PRIMARY_MODULE_FUNCTION );
很高兴您能解决问题
