STM32MP135f DK IWDG + GPIO baremetal C example

Описание

In this video:
- i run an example program that reloads the independent watchdog 2 so the board doesn't get reseted every 32s,
- configure u-boot to make the IWDG2 be serviced by it so it will not reset in u-boot menu as well,
- basic GPIO function usage to drive leds and get input from buttons.

The example here is based on David Welsch examples for Raspberry Pi Zero, since the u-boot does the configuring process for you (like the GPU code in RPI) there is no need for doing too much at startup.

Link to the repo with the project and files:
https://github.com/E-exp/STM32MP135-DK

Link to DWelch github:
https://github.com/dwelch67/raspberrypi-zero