Marlin VS Marlin-H32

I've re-installed the firmware: UBL-NoProbe-3x3-N32.bin (is this correct?) I have no probe but not sure on N32 or G32 and 3x3 or 5x5.

Firmware: Alex's Firmware 1.3.5.1 BLTouch-9x9-G32.bin

corresponding DWIN_SET in Marlin/Display firmware/Firmware Sets/

so to your last question why cant you update to marlin 2.1.x , well you can , but since its a different chip you will need an init script . if you want to do that with the 2.1.x copy this file https://github.com/alexqzd/Marlin/blob/main/Marlin/src/HAL/STM32F1/HAL.cpp into Marlin/src/HAL/STM32F1/HAL.cpp and add a #define VOXELAB_N32 into your config file , and bam it works .kinda i had some icons missing , its honestly a bit of a hassle to get working spez for someone without microprocessor experiance .

There is a limit in the firmware around 250c ish so if you want to print materials that need a higher temp you will have to modify the firmware. If that is something you want to do best to start with Alex's FW. There is a modified version here for high temps but may not be exactly the one you need. If you can't compile yourself I'm sure someone could do it for you if you make a request.

I could not find this guide to compile the firmware for it, could you link to it? It may be the pins of the CPU are wired up to different things on the aquila board and you need to define them properly. As you have the STM32 then there should not be any other changes to look out for unlike the other chips. You could compare the configuration files with Alex's to see if you have missed anything.

I would suggest using Alex's firmware if you are printing at high temps. Then you can use his repository to mod and compile you own FW. (for the H32 chip use this one) Some people have already done the high temp mod on some versions like Printsleo3D

Voxelab did release what they could and with the help of Alex was able to fix the bugs and also Alex was able to compile his FW for the H32. Now that is not an issue as that code has been rewritten thanks to the work done by shadow578.

If you want to compile your own FW then the H32 code has been worked on by shadow578 so it should be easier to compile now.

Maybe what you need is here somewhere.

There is Mriscoc ProUI being maintained by Classicrocker883 with the H32 code worked on by Shadow578 that has been getting an up to date vanilla Marlin build working on that chip.

There is a fork of mainline Marlin for HC32F46x MCUs (made to work on an Aquila X2), and I've got a base configuration done for Kobra Neo, but that fork currently does not have support for SoftwareSerial (which is needed for Kobra Neo's TMC2208 drivers that are running in UART mode) and TFT SPI (for our LCD display). Currently looking into it to see if I could port those features over.

I have been following progress on updating the H32 firmware to the newest version of marlin. Shadow578 and Classicrocker883 have been working on this and from what I can tell they have overcome one of the problems, compiling it on windows and have it working in VScode.

and here is the original one that is based off

after now almost a full month of work, i'm happy to share the project with you all, at https://github.com/shadow578/Marlin-H32. a pre-built firmware is available under releases, but you can also build the firmware yourself following the readme.