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cskozlowski / mmu2

This arduino codebase is for an mmu2 home brew clone
GNU General Public License v3.0
73 stars 17 forks source link

No communication between printer and MMU #9

Open wikolii opened 3 years ago

wikolii commented 3 years ago

Hi, 1st of all thanks for the code,. I love the project and being able to make your own MMU is so cool.

I have the MMU firmware uploaded to an SKR mini e3 v2. Everything seems to work because it starts and homes the idler. The printer has an SKR v1.4 pro board, and it's able to reset the MMU, even respond after the MMU starts but then it just sits there and doesn't respond to any commands from the printer's LCD MMU menu.

Here's the serial output:

18:37:29.848 -> waiting for serial port 18:37:29.848 -> 6.0 16/12/21 18:37:29.848 -> Sending START command to mk3 controller board 18:37:29.848 -> Sending START command to mk3 controller board 18:37:29.848 -> Starting new beta v 1.0 18:37:29.848 -> Waiting for message from mk3 18:37:29.848 -> Sending START command to mk3 controller board 18:37:29.848 -> Starting new beta v 1.0 18:37:29.848 -> Waiting for message from mk3 18:37:30.875 -> inbound message from Marlin 18:37:30.875 -> finished setting up input and output pins 18:37:31.015 -> Syncing the Idler Selector Assembly 18:37:32.278 -> Idler homed 18:37:33.493 -> Inialialization Complete, let's multicolor print .... 18:37:33.586 -> MMU Command: 'echo:Unknown command: "atr"' 18:37:33.586 -> ERROR: unrecognized command from the MK3 controllerMMU Command: 'ok' 18:37:33.680 -> ERROR: unrecognized command from the MK3 controllerMMU Command: 'echo:Unknown command: "o"' 18:37:33.773 -> ERROR: unrecognized command from the MK3 controllerMMU Command: 'ok'

and so on...

Any ideas? what's that "atr" command? Maybe i need to set a different MMU_RX / TX_SIZE?

I'd appreciate any kind of help, thanks in advance!