Remora - Rpi Software Stepping Using External Microcontroller via SPI

mhel wrote:

it's alive github.com/mhelmarc/Remora-STM32

Hi Rommel, 

Super big thanks for working on this. I've looked at your code base, great work.

Any thoughts on using Mbed framework as the basis? Your SPI DMA implementation should be applicable.

We should do a survey of available STM32 controller boards to understand which variants are common and what would be needed to support more STM32 boards.

Keep up the great work!!

BR
Scott

Aaroncnc wrote:

mhel,

I can code about as well as a one legged dog.
I can make things work but its not pretty.
Its been 15 years from my last time having to write code.
I am just starting back with python and even then its slow going.
 

Yeah I wish I've learned it while my eyes are in better condition

 

I bought a 3d printerboard from btt with a 407 (and 103, but was for another picnc port)  to specifically play with your port of picnc, and was rather disappointed when it disappeared from github the other day, but I see it has come back in a better form. I can assume its the stm32 remora? On the 103, is the ram/flash limitation only an issue if you load it directly to the board? The configuration, can you elaborate more on that?  On time sent over serial or like at the start of every boot (like a mesa or something) ? 

Yes you have to reprogram every boot. I plan on attaching an eeprom to my board, when I figure out
how to attach my rtc/eeprom combo board and actually learn how to read and write an eeprom

Hi Scott,
thanks. I'm just learning on the fly praticing my google-fu.
I will try and check Mbed tho.
What I really wanted is to build something I could fix myself.

mhel wrote:

Hi Scott,
thanks. I'm just learning on the fly praticing my google-fu.
I will try and check Mbed tho.
What I really wanted is to build something I could fix myself.

both are supported by mbed. also, does the config need to be loaded every time because you are using  dev boards?  

mhel wrote:

Hi Scott,
thanks. I'm just learning on the fly praticing my google-fu.
I will try and check Mbed tho.
What I really wanted is to build something I could fix myself.

Hi, Just thinking how this could evolve. Having a core code base that can call in LPC176x and STM32 dependencies would ease future maintainability. Of course we'd need to move to a community development and support mode as well.