Comments (5)
Neither SGEN nor SGEN-L are compatible with grbl-LPC, because they have incompatible pin mappings for the stepper drivers!
Grbl needs to have all step pins on one port, and all directions pins on one port, which is not the case on the SKR or SGEN boards. This is a limitation of the grbl code structure.
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The SGEN has the exact same pin mapping as the SBASE which seems to be supported? It just doesn't have the integrated stepper drivers, and has an lpc1769 instead of lpc1768.
from grbl-lpc.
@ej0rge I think you are wrong.
The SGEN_L has X step on P2.2, Y step on P0.19, Z step on P0.22 (different ports!)
The SBASE has X step on P2.0 and Y step on P2.1, Z step on P2.2... (same port!)
from grbl-lpc.
Not according to Makerbase.
The marlin pins file for the SGEN starts with #include "../lpc1768/pins_MKS_SBASE.h", has some undefs for E1, and then defines for tmc220x uart pins.
It's really confusing that SGEN-L is more of an SKR clone than a lesser SGEN. And it's not even really an SKR clone because the pins are very different on the SGEN-L than on the SKR. Can't imagine what possessed them to make a whole new design rather than just a new layout but there it is.
All that being said, thanks for answering.
from grbl-lpc.
Thanks for the link! It seems there is a pinout difference between SGen and SGEN_L.
According to their github the SGEN_L seems to have the mixed pinout:
https://github.com/makerbase-mks/Datasheet/blob/master/English%20datasheet/MKS%20SGEN_L%20Datasheet.pdf
So at least the SGEN V1.0_001 should be working with grbl-LPC (without E1).
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Related Issues (20)
- Laser PSU wiring HOT 9
- Compile for different boards HOT 4
- Support for SKR 1.3 / 1.4 (turbo) HOT 1
- Support for Panucatt SPI Bigfoot drivers (Azteeg X5 GT) HOT 1
- PlatformIO support HOT 1
- Question compatible mks board HOT 1
- Running external stepper controllers HOT 1
- Mks sbase z-probe wont invert HOT 8
- Clarification on "SKR boards don't work, because pin mapping is messed!" HOT 1
- MKS SGEN (not the L version) HOT 2
- Dual axis homing HOT 3
- Smoothieboard 5XC-R HOT 11
- Pwm pin and motor noise HOT 1
- Is this still valid? HOT 2
- How to use P2.13 (E1 Port) as 3.3V PWM output HOT 1
- firmware.bin HOT 4
- No Issue, SKR boards map file for Bigtreetech SKR V1.3 Turbo board HOT 1
- The current regulation of the motors is not working HOT 13
- MKS Sbase Current control Z axis ,A axis not work HOT 9
- Spindle Enable HOT 1
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