Rat Rig Community [Unofficial]•4w ago

Octopus V1.1 won't connect via USB

I'm just building my first Rat Rig (a Vcore 4). My problem is: the board just won't show up as a USB device (it's still outside of the printer, without drivers and without anything connected to it). dmesg output always is like:

usb 1-1.3: new full-speed USB device number 15 using xhci_hcd
usb 1-1.3: device descriptor read/64, error -32
usb 1-1.3: device descriptor read/64, error -32
usb 1-1.3: new full-speed USB device number 16 using xhci_hcd
usb 1-1.3: device descriptor read/64, error -32
usb 1-1.3: device descriptor read/64, error -32
usb 1-1-port3: attempt power cycle
usb 1-1.3: new full-speed USB device number 17 using xhci_hcd
usb 1-1.3: Device not responding to setup address.
usb 1-1.3: Device not responding to setup address.
usb 1-1.3: device not accepting address 17, error -71
usb 1-1.3: new full-speed USB device number 18 using xhci_hcd
usb 1-1.3: Device not responding to setup address.
usb 1-1.3: Device not responding to setup address.
usb 1-1.3: device not accepting address 18, error -71
usb 1-1-port3: unable to enumerate USB device

usb 1-1.3: new full-speed USB device number 15 using xhci_hcd
usb 1-1.3: device descriptor read/64, error -32
usb 1-1.3: device descriptor read/64, error -32
usb 1-1.3: new full-speed USB device number 16 using xhci_hcd
usb 1-1.3: device descriptor read/64, error -32
usb 1-1.3: device descriptor read/64, error -32
usb 1-1-port3: attempt power cycle
usb 1-1.3: new full-speed USB device number 17 using xhci_hcd
usb 1-1.3: Device not responding to setup address.
usb 1-1.3: Device not responding to setup address.
usb 1-1.3: device not accepting address 17, error -71
usb 1-1.3: new full-speed USB device number 18 using xhci_hcd
usb 1-1.3: Device not responding to setup address.
usb 1-1.3: Device not responding to setup address.
usb 1-1.3: device not accepting address 18, error -71
usb 1-1-port3: unable to enumerate USB device

So far I have tried: - Different USB cables (long, short, USB 2, USB 3) - Different USB ports on the Pi - Connecting it to my notebook - Powering it via USB or via 24V (lab power supply) - Pressing the reset button on the Octopus for a long time or twice or more in quick succession - Entering DFU mode via BOOT0 jumper and also in addition with BOOT1 tied to GND - Flashing via SD card: the LED blinks and it renames the file from firmware.bin to FIRMWARE.CUR - Flashing via debugger (ST-Link / Black Magic Probe). The MCU is detected correctly, erasing and flashing seem to work fine as well - Reinstalled the BTT bootloader, then flashed Klipper again Do you have any advice? Something I maybe have overlooked, tips that I might have missed? In my desperation, I have already ordered a new board, hopefully arriving tomorrow. But I'd like it much better, if I could get the one that was part of the printer kit to work

2 Replies

karooOP•4w ago

Update: the new board is working fine. So the best explanation is, that the board from the printer kit just arrived broken.

TheTik•4w ago

Glad you figured it out, sucks that it was a busted board.

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Octopus V1.1 won't connect via USB

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