Yes, sure you have to. This line... my_uart_param.clockPrescalar = 104; // set baud rate with 16 MHz clock ...looks like you got it from somewhere that used 1MHz as clock source and 9600 baud. Look at these code examples , they also include a few UART ones that show the proper initialization: msp430fr413x_euscia0_uart_01.c eUSCI_A0 UART echo at 9600 baud using BRCLK = 8MHz msp430fr413x_euscia0_uart_03.c USCI_A0 External Loopback test @ 115200 baud Dennis
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