MCU connect issue

General Discussion
1

Basic Information:

daVinci AiO
MCU / Printerboard:BTT SKR Mini E3 V3.0
klippy.log
klippy.log (68.9 KB)

A daVinci AiO landed on my bench with a ‘Bricked’ control board. With davinci10’s help tried to revive - no joy. I have rewired and fitted a BTT Mini E3 and a R Pi 2 to Kliperize it. As per BTTs ’ direction in the config header I created the firmware.bin file and the printer.cfg file. This was installed and confirmed as the board renamed the file to 'FIRMWARE.CUR* as expected.

I have checked everything I can think of but stil cannot connect to the MCU. I get this message:

“mcu ‘mcu’: Unable to connect
Once the underlying issue is corrected, use the
“FIRMWARE_RESTART” command to reset the firmware, reload the
config, and restart the host software.
Error configuring printer”

The R Pi has this as a lsusb report:
“bill@davinci2:~/klipper $ lsusb
Bus 001 Device 005: ID 148f:5370 Ralink Technology, Corp. RT5370 Wireless Adapter
Bus 001 Device 006: ID 1d50:614e OpenMoko, Inc. stm32g0b1xx
Bus 001 Device 003: ID 0424:ec00 Microchip Technology, Inc. (formerly SMSC) SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Microchip Technology, Inc. (formerly SMSC) SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub”

The detail of Device 006: 1d50:614e and stm32g0b1 was in the menuconfig part of ‘make’.

Any suggestions as to what to try next ?

Describe your issue:

…

1 Like
2

You may try the suggested command in Frequently Asked Questions - Klipper documentation.
“Where’s my serial port?”

Good luck, hcet14

3

Solved ! The serial address in the generic BTT file and the real address differed:

serial: usb-Klipper_stm32g0b1xx_12345-if00
and

serial: /dev/serial/by-id/usb-Klipper_Klipper_firmware_12345-if00

Now on to the other issues !

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