How can i use uart4 in apalis

sun_ml · January 25, 2019, 8:01am

i want to use uart4 in apalis-iMX8QM, and edit u-boot source code in board/toradex/apalis-imx8/apalis-imx8.c, but it does not work, how can i do to use uart4?

marcel.tx · January 25, 2019, 1:10pm

What exact hardware and software versions of things are you talking about?

What exactly do you mean by uart4?

Are you talking about the Apalis UART4 with its RXD on MXM3 pin 140 and TXD on MXM3 pin 138?