Hi,

due to some hardware changes, we need to develop a firmware that runs on 8250/51 with ET24 and ET32 packages.

Since I understand that the bin will run on 50&51, is there any chance to identify the package from the sdk to set up the correct UART_RX and UART_TX since they are on different pins in the layouts?

One solution that could work would probably be to initialize the uart on one pin set and try to communicate. If that fails we could use the other pair. Ugly but could work? 

What happens if we would set a PIN high that does not physically exist and read it back? could that work?

Hope you have a better solution.

Thank you