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dresco / STM32H7xx

grblHAL driver for STM32H7xx processors
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MODBUS on SKR3 #9

Closed Avalonnw closed 1 year ago

Avalonnw commented 1 year ago

Am I missing something or there is no MODBUS spindle support for H7 boards?

dresco commented 1 year ago

Hi, yes it should be fine - is something I test with here..

What issue are you seeing? There is a conflict with TMC UART usage which I still need to commit a fix for.

Avalonnw commented 1 year ago

I can't figure out which pins to use. I am currently on a RTFM stage before pulling my CNC for a controller upgrade apart. Unfortunately the FM part in RTFM is not very user friendly :)

On Fri, 20 Jan 2023, 22:40 Jon Escombe, @.***> wrote:

Hi, yes it should be fine - is something I test with here..

What issue are you seeing? There is a conflict with TMC UART usage which I still need to commit a fix for.

— Reply to this email directly, view it on GitHub https://github.com/dresco/STM32H7xx/issues/9#issuecomment-1398292176, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABXKDULFU3N4GOC6MUIAZHTWTJ6EVANCNFSM6AAAAAAUBOBSBA . You are receiving this because you authored the thread.Message ID: @.***>

dresco commented 1 year ago

I can't figure out which pins to use.

Try this, is how I hooked my Huanyang VFD up to the SKR3..

Avalonnw commented 1 year ago

Thanks, I'll try. I hope my spindle actually supports modbus :) It's mentioned in the manual in passing and I afraid RS485 components might be not populated on the VFD board. Will check tonight.