mimxrt1020-evk UART1 RX pin high

[Huskyiii]

Hello,

like the title suggested, the UART1 RX pin is high all the time, same code works with UART2. Am I missing something? I already try different board, same problem.

Thanks,

[FelipeGarcia]

Hi,

I am not sure which pin you are configuring or how, maybe you can provide more details. UART1 pin in MIMXRT1020-EVK has a pull-up resistor to avoid any noise in case of using serial downloader mode but this should not cause any issue with the communication, you check UART examples of the SDK to test it.

Best regards,

Felipe