Remora - Rpi Software Stepping Using External Microcontroller via SPI

Oh that one was when the gain was set to 5.0, I edited that post after I tried
the gain of 10.0. Althought the 5.0 setting improves a lot, this one is better.

streamable.com/ix3rz1

Would it be technically possible to make remora into a usable can interface for Linuxcnc?

Many microcontrollers have can. Linuxcnc currently doesn't. Or use it to hook up custom electronics such as encoder counters?

Hi, both software encoder counters and the LPC1768 QEI hardware encoder have modules in Remora. Theoretically we can create a module for any of the available hardware on the microcontroller.

I've got an STM32F407 sitting beside me, it's got even more peripheral options. Just need to get mbed working with it...

i was more interested in using chips like ls7366r or ic-md for high speed encoders. and you could use multiple ics for multiple encoders. and also using the embedded can interface for connecting to motors and such.

You should start a new thread asking about using CAN.

Will be interesting to see what chips this will support and the unique inputs they offer.

scotta wrote:

Hi, both software encoder counters and the LPC1768 QEI hardware encoder have modules in Remora. Theoretically we can create a module for any of the available hardware on the microcontroller.

I've got an STM32F407 sitting beside me, it's got even more peripheral options. Just need to get mbed working with it..



 

I just received my SKR 2 so now i can help you.
we should create a github repo. Which version of OS Mbed are you using ? (or trying to use)

gtt38 wrote:

scotta wrote:

Hi, both software encoder counters and the LPC1768 QEI hardware encoder have modules in Remora. Theoretically we can create a module for any of the available hardware on the microcontroller.

I've got an STM32F407 sitting beside me, it's got even more peripheral options. Just need to get mbed working with it..



 
I just received my SKR 2 so now i can help you.
we should create a github repo. Which version of OS Mbed are you using ? (or trying to use)

Hi, I'm using OS5 and now have a custom target working when flashing with an ST-Link to the base address of 0x08000000. When re-flashing the standard bootloader (take an image of the MCU before blowing it away... yes I had to search hi and low for a copy on line), and changing the target.mbed_app_start to 0x08008000, which is the bootloader jump. The app fails... This may be due to the VECT_TAB offset but still trying to figure this out. Once I have a working "hello world" loading from SD card, I can move on to the SPI port. The rest should be straight forward using the work that Rommel has already done.

Any help getting the "Hello world" working would be appreciated.

I've created a repo for the STM32 SKRv2 development work.

github.com/scottalford75/SKRV2-Mbed-OS5
 

Hi Scott,
This might be of interest.
github.com/GadgetAngel/BTT_SKR_13_14_14T...R%20V2.0%20(SKR%202)

I managed to get the bootloader working.
Apparently you also have to change the VECT_TAB_OFFSET.