See below SDK example project, which use the UART0 to do the communication. https://dev.ti.com/tirex/explore/node?node=A__AEDfu0vT-g8KuJe2UMLixw__MSPM0-SDK__a3PaaoK__LATEST You should take care of the BUSCLK of the project: (Open .syscfg file) If you set the MCLK=80MHz, and ULPCLK=40MHz. You will find the difference here for UART0-2/UART3. [ULPCLK should no more than 40MHz according to datasheet spec.] B.R. Sal
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