Accessing UART4 on RockPro64 (Armbian)
#2
I have just found a solution. In case anyone is interested, here is the link: https://forum.armbian.com/topic/15419-ac...rockpro64/.
TLDR:
- In order to make the UART4 overlay load, I had to erase the SPI flash and boot directly from the eMMC because SPI1 and UART4 share the same pins
- If you are using the SoftwareSerial library on an Arduino or something similar, you need to use lower baud rates (e. g. 9600) to make the communication reliable


Messages In This Thread
RE: Accessing UART4 on RockPro64 (Armbian) - by antonlyap - 10-04-2020, 12:51 PM

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