MCU Error in Mainsail - cant connect to mcu
I finished up the wifi setup and board firmware installation and now I am trying to proceed to Mainsail. I always get an error "MCU couldnt connect".
44 Replies
share your printer.cfg as well please
i assume everything is connected to the board?
rising-crimson•15mo ago
no not yet i only connected the pi at this moment
have you told klipper what board you are using?
rising-crimson•15mo ago
i dont think so i just completed the wifi setup and flashed the board and then i wanted to proceed to the mainsail initial configuration. I havent touched the printer.cfg
then you cant connect to the baord, thats totally normal
ahh
please ssh into the PI
like this
to this
end execute
lsusbshould look like this
then please share a screenshot of it
rising-crimson•15mo ago
i am using a mac is it the same for me then?
yes
rising-crimson•15mo ago
operation failed do i have to change the IP?
if so how do i find out my ip
well, you need of course use the IP form your PI
rising-crimson•15mo ago
right i should have known lol
use
ssh ratos.localrising-crimson•15mo ago
ok
it wants me to type in a password
raspberry
wait
ssh pi@ratos.local
sorry
rising-crimson•15mo ago
ahh okay
now it worked so now just run lsusb
yes
rising-crimson•15mo ago
alright
rising-crimson•15mo ago
rising-crimson•15mo ago
now it looks like this
good
now execute
ls /dev/serial/by-id/* and share the outputrising-crimson•15mo ago
/dev/serial/by-id/usb-Klipper_stm32f446xx_btt-octopus-11-if00
thats the output
very good
then all is ok
rising-crimson•15mo ago
okay thanks so much
i would isntall everything now and then make the config
rising-crimson•15mo ago
okay so now connect all the wires and everything and then config right?
yes
rising-crimson•15mo ago
okay thanks!
It still gives me the same error i didnt check yesterday if it actually works now
I did wire up everything now
Then you have wiring problems 🙂
Most common is the endstops
Just for my own curiosity.. on v-core 3.1.. wiring matches and connected to diag 0 & 1 where are the endstops in ratOS defined?
Should be pretty obvious from the includes.. pins are in the board config. Why?
Well. same old story really (and I found the aliases for the octo 1.1 to confirm) endstops are always triggered. Ohm switches, wires, I even purchased a new board. I find myself becoming a bit frustrated with the thing. Im sure I'll figure it out eventually just how much damage I do before then will be the question... well ,next will be replacing the switches themselves
That's a wiring issue. Unless you're not using the RR endstops?
Endstops are RR 400 kit stock. Wiring is verified problem remains. Board changed and problem remains the only variable left are the endstops themselves
Yea got this.. I replaced the endstops. Today I pressed the updates klipper etc. and now for some reason my Pi takes off and chokes. Yes, I can put a sink on it, or a fan on it.. but the temps climb almost uncontrolably. Im thinking of just going back ot a previous image and then ignoring updates LOL
Sorry to use this error to request help on an edge case where I am having the same issue
This is the screen that I am getting
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