How to port Mbed on custom exact replica board?

Mbed OS
1

I built a clone of Nucleo L476RG myself using STM32L476RG IC. Surprisingly, after some tests, I found out that the clone (which is exact replica of STM32 Nucleo L476RG) can’t run Mbed.

I looked at the following link: https://os.mbed.com/docs/mbed-os/v6.2/porting/porting-custom-boards.html and it seems most of the stuff is concerned with changing naming of existing peripherals, but as I said my board is exact replica of the original Nucleo.

What other stuff I need to do be able to run Mbed on the custom board? It does run normal STM32 C code as well as Arduino code.

2

It does work, I use the same Target MCU on my custom boards.

Take a look here:

This is for a different target but the process is exactly the same.
You can use any STM32 board with ST-LINK/V2-1 to program the clone board.

Use the online-compiler with a ‘blinky’ program to test, it’s quicker and easier, just add the STM32L476RG board to you board list.
You can use OS2 or OS5 both libraries will work.

3

‘exact replica’ except the little difference with the clock input :slight_smile:

4

Yes, you will need to add this in your mbed_app.json file if using the external 8Mhz xtal

            "target.clock_source": "USE_PLL_HSE_XTAL",