Printer not connecting

[Samywamy10]

Describe the bug After making the firmware using this repo with commit cdc11ba5, Klipper on my rpi won't connect to my printer, with the following error:

serialhdl.error: mcu 'mcu': Serial connection closed
mcu 'mcu': Timeout on connect
mcu 'mcu': Wait for identify_response
Traceback (most recent call last):
  File "/home/sam/klipper/klippy/serialhdl.py", line 68, in _get_identify_data
    params = self.send_with_response(msg, 'identify_response')
  File "/home/sam/klipper/klippy/serialhdl.py", line 261, in send_with_response
    return src.get_response([cmd], self.default_cmd_queue)
  File "/home/sam/klipper/klippy/serialhdl.py", line 318, in get_response
    self.serial.raw_send_wait_ack(cmds[-1], minclock, reqclock,
  File "/home/sam/klipper/klippy/serialhdl.py", line 253, in raw_send_wait_ack
    self._error("Serial connection closed")
  File "/home/sam/klipper/klippy/serialhdl.py", line 61, in _error
    raise error(self.warn_prefix + (msg % params))
serialhdl.error: mcu 'mcu': Serial connection closed

But when I flash back with the original Klipper firmware its fine. I tried renaming the file to be different e.g. klipper1.bin but didn't seem to make a difference

Working binary:

klipper.bin.zip

Not working:

klipper.bin.zip

Not sure if comparing binaries is possible but not sure what else to provide. Any ideas?

[0xD34D]

Hey @Samywamy10,

Did you run make menuconfig and setup the MCU before building the binary? If so, what settings did you use?

If everything is correct with the configuration then you might try make clean && make to get a clean build then reflash. As always, just make sure the .bin is a different name than the last time you flashed ;)

[Samywamy10]

Hey yeah I did the menuconfig steps (I was familiar as already did it to generate the original klipper bin file). I used the settings described in printer.cfg

I tried deleting the out folder and re-compiling from scratch after switching to your repo. I renamed the bin file on the SD card to be something different.

[Samywamy10]

I've actually given it another try and still no luck. I'm naming it clipper.bin and still Klipper isn't connecting, just getting the same

Printer is not ready The klippy host software is attempting to connect. Please retry in a few moments.

As soon as I switch back to the original klipper.bin it works.

I'm on your latest commit eb5d6b12 and built from this commit too. These are my menuconfig settings:

[Samywamy10]

So I re-read my message here and the printer.cfg and realised I'm an idiot and had the wrong communication interface.

PEBCAK - keen to try your build!

[Samywamy10]

Hey @0xD34D , this is awesome! Z-offset calibration is working really well for me 👍🏽