Remora - Rpi Software Stepping Using External Microcontroller via SPI

For those interested the testing repo for the STM32 version of Remora has been updated to include TMC UART driver support.

I need to get analog input (temperature) module up and running then a merge into one code base will be possible.

Im down to clown, but I have a few questions.
do I need to make a config file like the previous version, except with stm32 pin names?
Is motenable, PC_13 only other hardcoded pin? (not including sd, spi, tx/rx)
Do you think you can fudge up a board using an stlink to load the bootloader/firmware? .....asking for a friend.....

Hi,

Yes, configuration is the same but with STM pin names as you said.

Thanks for the reminder, I'll need to set-up a "on load" module for the motor enable pin (PC_13) so that this is configured through the config.txt file.

SD / SDIO and UART pins will need to be hard coded for specific targets / boards.

Currently the SPI pins are hard coded but this could also evolve into the config.txt file if other boards use different.

I've used an ST-Link on the SKRv2 initially while we were working out how to setup the bootloader config in Mbed.

The testing repo for STM32 now has thermistor support.

scotta wrote:

Hi,

Yes, configuration is the same but with STM pin names as you said.

Thanks for the reminder, I'll need to set-up a "on load" module for the motor enable pin (PC_13) so that this is configured through the config.txt file.

SD / SDIO and UART pins will need to be hard coded for specific targets / boards.

Currently the SPI pins are hard coded but this could also evolve into the config.txt file if other boards use different.

I've used an ST-Link on the SKRv2 initially while we were working out how to setup the bootloader config in Mbed.

Ok, cool. Im just asking because from what I can see, the motor enable scheme is not very common, but the spi/sd and uart so far, seem somewhat common between BTT and fystec across different boards and chips (446, 407, and 103)

So i have a Teensy 5 axis CNC board and it has insane step rates with its 600mhz core. The board was developed for GrblHal or Grbl32/Hal. If you do a little reading on GrblHal it was based on LinuxCNC HAL's structure. So my question is can this 600mhz monster and its HAL file be adapted to Remora? The point being it is readily available still and is cheap, there are a few Teensy CNC boards available, below is the link to the one I have. there is SPI, LAN, serial

forum.pjrc.com/threads/61622-Teensy-4-1-Based-CNC-Controller