Code size report:

   bare-arm:    +0 +0.000% 
minimal x86:    +0 +0.000% 
   unix x64:    +0 +0.000% standard
      stm32:    +0 +0.000% PYBV10
     mimxrt:    +0 +0.000% TEENSY40
        rp2:    +0 +0.000% RPI_PICO_W
       samd:    +0 +0.000% ADAFRUIT_ITSYBITSY_M4_EXPRESS

i have create the new stm32 board(NUCLEO_H753xx)

Hi RasailiTilak!

I also created a branch for NUCLEO_H753ZI back in 2021, see here. For my projects I regularly rebase my branches onto latest master. Now I finally had time to clean them up and create PRs for some. It was just today while reading open PRs, that I came across yours.

I carefully compared my new PR #18574 to yours. Where possible my branch includes files of NUCLEO_H743ZI and only adds lines that are different. So I "inlined" my #includes and then merged my branch with yours to see what is really different.

Would you agree to discuss the differences?

I could create a PR to your branch so that we can both see the differences. Most of them are in pins.csv.

Please write a quick message if you have the time and interest to combine our efforts for NUCLEO_H753xx!