unable to connect to MCU

my skr pro 1.2 is unable to connect to my raspberry pi 4. it has worked for 1.5 years now and had to update using a fresh install. i have tried several thing -no cables and no jumper and no tmc 2209 -some jumpers -different sd cards -different usb cable -different format size 4kb , 8kb - 32 bit version and 64 bit version of ratos -older version of ratos please help
No description
No description
48 Replies
blacksmithforlife
Did you use the configurator in Rat-OS 2.x?
deep-jade
deep-jade15mo ago
yes also just tried ratos 1.2.4 still no mcu
blacksmithforlife
Don't use 1.x, it is deprecated now. When you used the configurator did it flash your skr?
deep-jade
deep-jade15mo ago
i only could do it manually and it could not detect my skr if checked the file it went to a .FUR
blacksmithforlife
That's the problem, you need to make sure it flashes properly Is the raspberry pi connected to the Internet?
deep-jade
deep-jade15mo ago
yes
blacksmithforlife
Did you update everything before compiling the firmware?
deep-jade
deep-jade15mo ago
i just used the 2.0.2 do you want me to flash the pi then update and then compile the firmware ?
blacksmithforlife
https://os.ratrig.com/docs/installation#updating Then go back to the configurator and flash it again
Installing RatOS | RatOS
Raspberry Pi Installation
deep-jade
deep-jade15mo ago
still have this
No description
deep-jade
deep-jade15mo ago
now i downloaded the firmware and put it on an sd card put it in the skr and pressed the reset button and it gave me a green blinking led
blacksmithforlife
You clicked the compile firmware button? Then download the firmware?
deep-jade
deep-jade15mo ago
yes
blacksmithforlife
And when you come back to this page and click the "check board status" button what does it say?
deep-jade
deep-jade15mo ago
No description
blacksmithforlife
@miklschmidt not sure if there is anything else to try before having to ssh in?
miklschmidt
miklschmidt15mo ago
Other sd cards That’s usually the issue There’s nothing gained by SSHing in. It’s not connecting via USB.
deep-jade
deep-jade15mo ago
already tried 2 different sd cards
Nebulator
Nebulator15mo ago
perhaps the format is incorrect? Does it need to be fat32 or fat16? Sometimes too large sd cards won't work either
deep-jade
deep-jade15mo ago
i tried fat 32 at 8kb and 4kb on 16 gb sd cards and 128 gb for pi and 32 for skr
Nebulator
Nebulator15mo ago
you shouldnt have to change cluster sizes just fat32. 16GB is too big I think. Try tricking it with a 1GB partition This is just for the flashing oke you dont have to change anything for the rpi
blacksmithforlife
Have you tried different USB cords to the pi?
deep-jade
deep-jade15mo ago
yes nothing changed still nothing, could it be that the skr is bricked?
Nebulator
Nebulator15mo ago
are you still trying to flash it to make it visible from ratos?
deep-jade
deep-jade15mo ago
yeah
Nebulator
Nebulator15mo ago
and stil every time when you put the flash card in, it blinks as if its flashing?
deep-jade
deep-jade15mo ago
when i put in the skr and press the reset button it flashes a green led for a couple seconds
Nebulator
Nebulator15mo ago
isnt green just reading the card, not necessarily flashing? i had a similar issue with an psfytec or whatever its called
deep-jade
deep-jade15mo ago
if i take sd card out it turns the .bin file into the .FUR file so i think it works
Nebulator
Nebulator15mo ago
yeh sounds like it Im sorry if I missed parts, i did skim back to the top ... 😉 but did you open a terminal with ssh, sudo to root and used dmesg -T --follow (or something similar) to see what appears when you unplug and plug the skr into the pi?
deep-jade
deep-jade15mo ago
well i get this now
No description
deep-jade
deep-jade15mo ago
it's the same with the usb plugged in or not
Nebulator
Nebulator15mo ago
@skar__ Sorry was afk for a bit. As far as I am concerned that is either a hardware or cabling issue. Hardware can be either the pi or the skr. I know thats not very helpful but I don't think its the sdcard or the flashing. If you can, I would try another pi, perhaps borrow one Can you connect other things to the pi usb? Try a mouse or external disk see what appears in dmesg whether you get the same errors
deep-jade
deep-jade15mo ago
i'll try my old pi 3b+ in my cr10 nothing really different happened only the red messages didn't show up
Nebulator
Nebulator15mo ago
well thats a good thing is lsusb output showing the skr?
deep-jade
deep-jade15mo ago
No description
deep-jade
deep-jade15mo ago
Now i also pluged in my c270 and old prusa mainboard
No description
deep-jade
deep-jade15mo ago
ok i now tried to do the same on my pi4
deep-jade
deep-jade15mo ago
1 usb port seems to be dead all the other seem to work fine
No description
deep-jade
deep-jade15mo ago
but still nothing with the skr
blacksmithforlife
Was this skr ever working? Maybe it is a bad board
deep-jade
deep-jade15mo ago
Worked for more than 1.5 years and stopped working like 3 days ago
Nebulator
Nebulator15mo ago
I missed whether you tested the skr and ratos on the pi3
deep-jade
deep-jade15mo ago
tried it but same story
Nebulator
Nebulator15mo ago
It sounds like the skr has a fried usb port as well then. Can only guess but perhaps the dead port on the pi4 is related to that, maybe accidentally shorted it when plugging/unplugging ...
deep-jade
deep-jade15mo ago
yeah i had the same conclusion after a while. Now i need to get another board, thinking of getting an octopus board. but don't know if the different models actually make a differance with klipper.
miklschmidt
miklschmidt15mo ago
It doesn't 🙂 Just be sure it's supported: https://os.ratrig.com/docs/boards/list
Complete list | RatOS
RatOS currently supports the following control boards:
mwj-speedtwin
mwj-speedtwin13mo ago
un
Want results from more Discord servers?
Add your server