Using UART1 Tx and Rx

I’m trying to setup a very basic app that receives data through the IoT expansion card, prints it out and then sends data back. I’ve only found very limited info and info specific to certain requirements.

It should be noted that i have attempted to use the “muxControlServices” that are provided with the board and the app seems to get hung up on something. Not really sure why, but i know that if i comment out the lines that relate to the muxControl, the app functions normally.

Any insight would be much appreciated. I am very much a beginner here.

you can use this UART_Test1.rar test app here: