mojocorp

> > > @theodonkulus, build for whichever board you have. If you're using the most recent (github) STM32 core, you'll note there's a board definition for the M300 now (thanks...

>What version of the printer are you using? Monoprice Delta Mini v43

#define E0_AUTO_FAN_PIN PB8 does NOT work, but the status led turn to solid green when the fan must be off and off when the fan must be on. If I...

I checked with a multimeter and the bed heater is connected to PA5 as expected ( https://eu.mouser.com/Datasheets/_/?Keyword=STM32F070CBT6&FS=True ) But still not heating. I event tried "#define HEATER_BED_INVERTING true" and nope,...

> If you swap extruder and bed pins, does one of them come on and other not? I swapped the pin definitions for hotend+temp bed+temp: - hotend work as expected...

- Now I have xyz and e motor enable pin working (PB10 and PB0) - If I change STEP_TIMER to 6 and TEMP_TIMER to 7, then the hotend fan work...

I always had FAN_SOFT_PWM defined, and my understanding is that it should use software pwm for the heaters as well. Any idea how to proceed ? UPDATE: if I deactivate...

> The variant needs to have the SPI pins enabled and I can do that. Does it mean my changes to 'spiInit' won't be necessary anymore ? That would be...

> Ok, I was wrong. This is very closely related to the "Marlin can't cope with multiple SPI instances" issue - the STM32 HAL doesn't set the pins (and Marlin...

I've tested overwriting the SPI pins in a new M300 variant and it's working. see https://github.com/papabricole/Arduino_Core_STM32/tree/malyan-m300 Should I propose a pull request to STM32 core or you handle it ?