MSP432-C++

This project is completely written in C++ 20. The standard lib is not used, everything is written from scratch. This is more like a playground or proof of concept to show and test how C++ can be used for bare metal micro-controller programming. There may be several bugs in this project, just open an issue or pull-request if you have time :)

The API/Design is heavily inspired by the API of Tock (https://github.com/tock/tock).

What works

This project is nowhere near feature complete. It is still heavily under development. But a few things are still working already:

• GPIO output and input (without Interrupt functionality)
• DMA
• UART
• SPI (theoretically but it's not tested yet)

What has to be done

• A proper way to describe the defined bitfield-values of the peripheral registers
• FPU support
• Missing peripheral drivers
• Rewrite of buildsystem (for some reason make rebuild -j does not work)
• Rewrite of Fifo (especially an emplace() function via variadic templates)
• [/] Integrate Testcases into build-system

How to use

Every project has to be located in the projects directory. Simply create a new folder and copy the makefile from projects/test/ and adapt it to your needs. Compile the project with make, clean the project with make clean, rebuild the project with make rebuild and flash the binary to the target with make flash. I was developing this code with VSCode on Archlinux, thus I programmed the target via openOCD (openocd.cfg).

Hardware

This codebase is designed for the MSP432P401R microcontroller, which consists of a Cortex M4F and the "old" peripherals of the famous MSP430 family from Texas instrumens. The reason why I chose this board was that I had one lying around from my masters thesis and the peripherals are very easy and simply to use. Thus it was/is easier to focus on the "C++-Side". I think the MSP-EXP432P401R evaluation board is not available anymore, but the MSP432E4xx should be compatible except the DMA.

• Evaluation Board: https://www.ti.com/tool/MSP-EXP432P401R
• Device Specific Datasheet: https://www.ti.com/lit/ds/slas826e/slas826e.pdf
• User Guide: http://edge.rit.edu/edge/P17363/public/MSD2%20Documents/msp432%20technical%20reference.pdf