http://embedded-lab.com/blog/stm32-gpio-ports-insights/
http://hertaville.com/stm32f0-gpio-tutorial-part-1.html
The libmaple libraries, on which STM32duino is based, provides access to registers by the syntax:
GPIOA->regs->REG
codepope
/ rgbkeypadcp.py
Created
February 15, 2021 21:08
A class (and example) for the Pimoroni Pico RGB Keypad and CircuitPython
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| import board | |
| import digitalio | |
| import busio | |
| import random | |
| import time | |
| class PicoRGBkeypad: | |
| WIDTH=4 | |
| HEIGHT=4 | |
| NUM_PAD=WIDTH*HEIGHT |
