Low Level Programming of the Raspberry Pi in C (2013)

If you need a little bit more determinism the beaglebone has a PRU (programmable realtime unit), a separate processor that can pass data back and forth to the main RAM.<p><a href="http:&#x2F;&#x2F;beagleboard.org&#x2F;pru" rel="nofollow">http:&#x2F;&#x2F;beagleboard.org&#x2F;pru</a><p>I was able to use one to read in an 8 bit parallel bus at around 8MHz without having to build a separate board with appropriate MCU.

Sure it&#x27;s low level in that you&#x27;re poking at physical memory registers, but to me, low level in this context (thinking microcontrollers) means replacing the Linux kernel binary with your own application that does its own direct memory poking.

There used to be one in Rust but it seems that this year it reverted back to C.<p><a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;rust&#x2F;comments&#x2F;7pymd9&#x2F;stanford_cs140e_operating_systems_writing_a&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;rust&#x2F;comments&#x2F;7pymd9&#x2F;stanford_cs140...</a>

Check out ultibo.org It is Pascal, not C, but runs down on bare metal.

Is there a Raspberry PI emulator that exists that I could test my code on before attempting to load it onto the device?

Is this the kind of thing that might be good for a kid (9) to learn as a first step into real CS?

Very cool! Has anyone seen a Rust equivalent of something like this?