This is my first post here and I’m quite new to the Radxa CM3 board. I designed a custom rPi CM4 breakout board which I am testing now with 2 brand new CM3s.
I successfully created a debian OS using debos and the board runs very nice. But when connecting to my peripherals I noticed that the overlay of the UART ports seems not identical to the rPi CM4. Is this correct?
I’m missing following ports on the provided pins:
- rPi UART3 on connector 1 pin 34 & 54
- rPi UART4 on connector 1 pin 39 & 40
- rPi UART5 on connector 1 pin 28 & 31
All these pins doesn’t seem to provide a UART port on the Rockchip, correct? Or am I missing something?
It would be cool if I could make my board completely compatible to the Radxa CM3.
Curious for the replies