Jon Escombe

Afraid I'm pretty much out of ideas, as it seems to be working as expected here - within the limitations of my slightly different hardware setup (H743 SKR3 variant +...

Actually, one more idea... Looking at the manual + schematic, the drivers can either be powered by the main DC IN supply or a separate Motor Power terminal. Which one...

> And this SPI I can't find via "cross-reference" starting in file STM32H7xx_HAL_Driver... The SKR3 board uses a soft SPI implementation for the motor drivers (code is in Src/tmc_spi.c) -...

> Initially I was happy, there was no 5Vdc (2 modules lowering the voltage). That's a red flag, how are you powering the modules? Have you tried a known good...

Okay thanks, have ordered a EZ5160pro V1.0 module to verify against my setup here..

> [This is the issue](https://github.com/grblHAL/RP2040/issues/74) that triggered the change. Thanks, yes that is exactly the scenario that had me looking closer at this... > Writing to the output register before...

> I'll check when I am back home, going tomorrow. Thanks, fwiw this is what I have currently; ``` diff --git a/Src/driver.c b/Src/driver.c index abee334..45e42df 100644 --- a/Src/driver.c +++ b/Src/driver.c...

Am also wondering whether there should be $ parameter settings for default current per axis (before any M906 changes), do you have any thoughts on this? When I was looking...

> In addition to the `$14x` settings? Default values are [set here](https://github.com/grblHAL/Plugins_motor/blob/11c937c85f07f7f4a52be6dfdd0e49f4fcfe1886/trinamic.h#L87-L91). > Could it be that you need to reset driver/plugin settings with `$RST=& `since _Set current_ is reported...

Hmm, they seem to be explicitly set to zero [here](https://github.com/grblHAL/core/blob/04a5edcf8353f7294167d12d32e4b073d9be9ce4/config.h#L1860-L1868), is that expected?