STM32 timer+ADC+DMA examples

All examples built from a single Makefile: set the GCC_INSTALL_ROOT variable to point to the bin directory in an arm-none-eabi GCC installation.

Examples are:

• ex1.c: simple polling ADC;
• ex2.c: manually triggered single sample ADC with DMA;
• ex3.c: manually triggered multiple sample ADC with DMA;
• ex4.c: timer-driven multiple sample ADC with DMA;
• ex5.c and ex5-view.py: bare-bones USB oscilloscope.

All written to run on a Nucleo-144 board with an STM32F767ZI.

Python setup

The USB oscilloscope example uses Python (you'll need Python 3), and relies on a couple of Python libraries, listed in the usual requirements.txt file. The best way to deal with this is to create a virtual environment:

python -m venv .venv
. ./.venv/bin/activate
pip install -r requirements.txt

Then you'll be able to run the ex5-view.py script.

Note The serial port used by the Python script is hard-coded. Depending on your Linux distribution (or if you're using Windows), you may need to change it. Search for the string "/dev/ttyACM0" and replace it with whatever your operating system uses for the USB virtual serial port from the ST-Link on the Nucleo board.