<p><span class="h-card" translate="no"><a href="https://chaos.social/@maehw" class="u-url mention">@<span>maehw</span></a></span> it just uses a few USARTs (i think 1, 2, and 6 at least, but i haven't fully traced the board yet) and an SDMMC peripheral. and GPIOA bank. nothing else as far as i can tell, very conservatively written</p><p>probably C, and definitely no OS</p>
