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Remora - Rpi Software Stepping Using External Microcontroller via SPI

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4 years 8 months ago #236097 by Zuo99
Replied by Zuo99 on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI
HI, cakeslob, it looks like I messed up something, following the steps above, I still have a problem with the SKR2 429, I can start the LINUXCNC, the software runs fine, but the motor doesn't turn, I checked the board, confirmed Power supply is no problem.
How was it when you tested the SKR2 429 earlier?

Thank you for your help

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4 years 8 months ago - 4 years 8 months ago #236120 by cakeslob
Replied by cakeslob on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI
Hey zuo, sorry for any confusion. In reguards to the skr2 429 version, you shouldnt need to change anything,you can use the same firmware.bin for both the skr2 429 and octopus pro 429 , for the skr2 you can use the same skr2 config for both skr2 boards, but the octopus will have a different config file.

The issue you describe, try this config file , or see if your config has this section, and if not, try adding this. the skr2 has an anti reversing thing for the stepper drives with an io that needs to be turned on to get power to the stepper drives,
Code:
{ "Thread": "On load", "Type": "Motor Power", "Comment": "Enable motor power SKR2", "Pin": "PC_13" },
Last edit: 4 years 8 months ago by cakeslob.

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4 years 8 months ago #236121 by cakeslob
Replied by cakeslob on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI
Code:
{ "Board": "BIGTREETECH SKR v2", "Modules":[ { "Thread": "Servo", "Type": "Reset Pin", "Comment": "Reset pin", "Pin": "PC_4" }, { "Thread": "On load", "Type": "Motor Power", "Comment": "Enable motor power SKR2", "Pin": "PC_13" }, { "Thread": "Base", "Type": "Stepgen", "Comment": "X - Joint 0 step generator", "Joint Number": 0, "Step Pin": "PE_2", "Direction Pin": "PE_1", "Enable Pin": "PE_3" }, { "Thread": "Base", "Type": "Stepgen", "Comment": "Y - Joint 1 step generator", "Joint Number": 1, "Step Pin": "PD_5", "Direction Pin": "PD_4", "Enable Pin": "PD_6" }, { "Thread": "Base", "Type": "Stepgen", "Comment": "Z - Joint 2 step generator", "Joint Number": 2, "Step Pin": "PA_15", "Direction Pin": "PA_8", "Enable Pin": "PD_1" } ] }

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4 years 7 months ago #236150 by Zuo99
Replied by Zuo99 on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI
Thanks for your help, I tried the enable motor power SKR2 you said, it works fine, the config.txt file of SKR v2 downloaded from GITHUB seems to be missing this part

thanks again for your work

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4 years 7 months ago - 4 years 7 months ago #237674 by scotta
Replied by scotta on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI
In the work I have been doing on the NVEM Ethernet version of Remora I have now been able to store and retrieve the config.txt file contents to and from the Flash memory of the STM32. I've been working on this as there is no SD card on the NVEM and we can send the config over Ethernet to the board.

Is this a feature, the Flash storage that is, that people would use on 3D printer controller boards. This would allow the removal of the SD card. The only time the SD card would need to be inserted would be for firmware or config updates.

Thoughts?
Last edit: 4 years 7 months ago by scotta.
The following user(s) said Thank You: tommylight

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4 years 7 months ago #237681 by tommylight
Replied by tommylight on topic Remora - Rpi Software Stepping Using External Microcontroller via SPI
I like Klipper for that ability, no flash, no SD, nothing.
Does not have resume after power off though, although i rarely need it.
www.youtube.com/@toma.cnc1
www.youtube.com/@toma.3d
www.youtube.com/@tomapc

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