MCU unable to connect
This is a really challenging issue.
I have read all the posts about the octopus V1.1 that cannot connect and say they have a configuration error and cannot connect to klippy
I have tried all the methods, new cables, new USB and I think the issue is configuration related but I can’t figure out what.
Right after I flash my board I get the “octopus pro h723 v1.1 is detected but unresponsive”, but when I connect to pi via ssh and connect to the board to identify itself it communicates that it is connected to an h723. I can supply screenshots if needed.
Not sure what to do? Should I flash something via the SSH command prompt?
I have followed the steps in printer.cig, wired it up, unwired, im about ready to get a new board but I am not convinced there is anything wrong with the board.
46 Replies
Right after I flash my board I get the “octopus pro h723 v1.1 is detected but unresponsive”, but when I connect to pi via ssh and connect to the board to identify itself it communicates that it is connected to an h723. I can supply screenshots if needed.the message means it didn't flash correctly. Not sure what you mean by it identifies itself as h723
Ok, how can I make it flash correctly? I’ve tried every method, and swapped SD cards for a better ones, and it’s the same result… I use a separate power supply for the board rather than usb C power
Sorry to be redundant, but let's step through it one by one:
first try using SD card. Did you verify that the file on the SD card changed to firmware.cur?
I did not… and this is the first time I’ve seen that this is something that should happen… are you saying I should transfer the file, put it in the board, flash it, pull it out, and then check it on a computer?
correct
ok, i will give this a shot tomorrow, i just bricked an SD by accident, ill keep you updated
ok so, i did as the control board flashing instructions says, i am using a different a different power suorce for the board than the pi.
the firmware.bin file did not change
should i try holding the rest button and powering on at the same time? i have seen that some people do that?
ok, nevermind... now it says firmware.cur... but the board is still not detected
check board status does nothing
Is the pi connected to the internet?
yup!
ok, and you have usb C on octopus to USB A on pi? Is there anything else plugged in?
ok so, yes, and i just treied turning the board on first, and then the pi, and it detected it, however i still get this
and then this
right, now you have to go and follow the rest of the install instructions
all you did was flash the firmware, there is a lot more to do
right, but i am confused as to what is wrong, becasue i have been down this road before and never got the warning to go away, i put all the drivers in, wired the whole thing up, configured printer.cfg, and the warning never goes away
and i cant tell what step i am not doing or not doing right
https://os.ratrig.com/docs/configuration
is the next step
so you click the button that corresponds with your machine
then you need to edit the printer.cfg
i understand that. I have been trying and retrying the initial configuration for the last 3 days, my best guess is there is some syntax in config which is wrong, but i cant find it
ok. Go and update the printer.cfg, then upload here for us to take a look at
line 24, why that one when you said earlier you are using octopus 1.1?
i am usung an h723 v1.1
but you have the octopus PRO uncommented
i tried uncommenting both and they yielded the same result
that is a different board
in the configurator, which board was detected? That is the one you should uncomment in your printer.cfg
the label on the amazon order is BIGTREETECH Octopus Pro V1.1 (H723))
this is my step 1 flashing
ok, let me check the rest of the printer.cfg
if you ssh into the pi and run
lsusb what is the output?ill check'
and does
/dev/btt-octopus-pro-h723-11 exist?
ls /dev/* | grep octopusdid i do that right?
and if you click the
FIRMWARE RESTART button in mainsail, does it then pickup the board?no, same thing, printer is not ready
@miklschmidt any ideas? It doesn't make sense to me that it is found in configurator, and has the connection open to the pi, yet klipper can't connect
im gald im not crazy
@thatladboniface i understand why you're confused, you want
not
[include RatOS/boards/btt-octopus-pro-h723/config.cfg]
This is because the v1.1 was added after the last RatOS release so it's not in the template yet.Ahhh
Yeah i really need to get the configurator to manage the cfg 😄
so should i manually type in the -11?
[include RatOS/boards/btt-octopus-pro-h723-11/config.cfg]
is not in my cfg file
and i dont have more updates
yeah that'll do
ok...
i need to plug in thermisters to get this to go?
that is normal, you need to connect your thermistors
Basically you just continue with the guide now
that was 3 days frustration for 3 characters 
you both
i will open this again if i run into more issues
you both
i will open this again if i run into more issues