An STM32 emulator written in Rust for 3D printers • Hacker News Board

Re: An STM32 emulator written in Rust for 3D printers

#21

Post by riffraff » Mon, Jul 25, 2022, 6:43 PM UTC

jhallenworld wrote: post #10

riffraff wrote: post #6

Earlier quoted context omitted.

How come STM32s are not available? I thought the chip supply issues were mostly related to smaller process nodes while these should be made on relatively older ones.

The short answer is that they are not building more fabs for non-leading edge processes, like those used by STM32. There is an interesting video about this: https://www.youtube.com/watch?v=YJrOuBkYCMQ

Pretty interesting, thanks!

Re: An STM32 emulator written in Rust for 3D printers

#22

Post by tslater2006 » Mon, Jul 25, 2022, 7:11 PM UTC

kmeisthax wrote: post #7

Could this be used to, say, reverse-engineer the Chitubox-proprietary file format that a lot of 4K+ MSLA printers use?

I'm guessing you are referring to the new format they released with Chitubox 1.9 that encrypts portions of the layer data. The Chitubox file format has been reverse engineered and their encryption as well. The format is in the CTBEncryptedFile.cs of the UVTools project, and the encryption specifically is handled in the CryptFile mehtod: https://github.com/sn4k3/UVtools/blob/master/UVtools.Core/Fi...

010 Editor templates for both the encrypted CTB and the decrypted CTB are also provided in the repository: https://github.com/sn4k3/UVtools/tree/master/Scripts/010%20E...

Re: An STM32 emulator written in Rust for 3D printers

#23

Post by stavros » Mon, Jul 25, 2022, 7:16 PM UTC

sbf501 wrote: post #16

Impressive. This would be great for drone flight controller software, as almost 100% of the racing controller market is STM32 processors.

And great for development/testing too, if you can emulate an entire drone.