An Embedded USB Device stack in Ada #USB #TinyUSB @AdaCoreCompany

The AdaCore blog discusses building an embedded USB Device stack in Ada

USB is a complex protocol stack without a lot of beginner-friendly documentation available online. And up until a few years ago, USB stacks provided by hardware vendors were the only option.

Things are changing now with, for instance, the TinyUSB project. The turning point for me was the discovery of the “USB in a nutshell” website. Reading this guide to the internals of the USB protocol gave me the confidence I needed to start this project, and I highly recommend it to anyone interested in USB.

I had a first working version of the USB stack for the STM32F405 micro-controller about four years ago, but I couldn’t find the time to make this implementation clean and micro-controller agnostic until last year. I resumed my work, this time on the Microchip SAMD51.

The demonstration in the video is on the Adafruit PyGamer, using the USB port as a HID device for game input.

See the video below and more in the blog post here.

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1 Comment

  1. For once your feed contains something I want to read, but of course it doesn’t include a link to the actual content :/

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