Remora with STM32H753ZI

I have a STM32H753ZI development board and would like to install remora, would that be possible?

The work for the H7 series is very close to ready. The core code is running and has been updated with a lot of refactoring. I wanted to take this opportunity to get the TMC SPI drivers incorporated, which is what I'm working on at the moment.

github.com/scottalford75/Remora-STM32H7xx

This is the development repo if you would like to have a look. If your board does not use a boot loader than this should get you going. This has been developed on an SKR3 board, so compare your crystal setup and adjust if needed.

Once I'm happy, I'll be adding the bootloader offsets etc in the code.

How close are you, and how can I help? It's been three or four years since I worked on an ST ARM core, but I do work in the embedded world all the time, and I'm happy to be of assistance. With a little bit of digging, I can probably even find my old ST background debug dongle and the tools to support it.

I presently have a strong interest in seeing this project through to completion. I have been standardizing my computer controlled systems on a Bigtreetech Manta M8P board, which basically is a breakout board for a Raspberry Pi CM4 with an ST32H723ZET6 on it to run the lower-level stuff. I've had very good luck with it using it for Klipper/Mainsail/Crowsnest to run a 3D printer. And since the stepper drivers I want to use to drive the motors on my milling machine drop right in, I'd like to bridge LinuxCNC to it. The higher current drivers (like variants of the TMC5160) use SPI, so I'd need that driver. And it'd be nice to be able to poll a few GPIO's so I can move the mill bed with a joystick for setup. But it shouldn't be *that* difficult, I don't think.

Just let me know if/how I can contribute.

Here you go

github.com/remora-cnc/Remora-STM32H7xx-PIO

It even has TMC5160 support. Work has slowed a bit as we're porting over the F4, but the H7 is running.

You da man! An H7 and TMC5160 combination should get me up and going. For starters I'm just going to control x, y, and z-axes, but at some point I may add two more drivers for the spindle and a coolant pump.

I've been fiddling with those Chinese-made encoders that they put on everything from calipers to linear rails (which I have bolted to my mill axes for DRO). Eventually it'd be neat to close the loop entirely -- as well as get an old computer joystick wired into a few GPIO's to be able to "jog" the machine manually.

But it all starts with x, y, and z...

Thanks so much!

hi ive got this working flawlessly on my scylla btt board took 3 days drop us a message on here if u still looking .

Is there a web page/github page to describe the Remora over BTT Syllia setup. I am looking at a Flexi-HAL setup as it is documented and tested. I like the idea of an STM32H753 for speed and pinouts. I would like more information - STCubeProgramming- wiring etc. I think you are on the write track. I was considering building a PCB with something similar to the BTT Syllia - But the price point for what they offer isn't bad.