Low-level access to STM32 peripherals using JavaScript

I posted a new tutorial up here:

http://www.espruino.com/STM32+Peripheral­s

It's a bit heavy, but it shows you how you'd go through the process of looking at the chip's reference manual, decoding it and turning it into JavaScript that can set the hardware up in interesting ways.

At the end of the tutorial you end up with:

• A hardware cycle counter
  
• Input Capture - the ability to store the counter's value in hardware when an input changes
  
• Capacitive touch sensor using STM32 hardware