openthread: [nrf52840] unable to use USB=1 ot-ncp-radio

Describe the bug /dev/ttyACM0 not found with USB=1 ot-ncp-radio.

To Reproduce Information to reproduce the behavior, including:

dd69fabd2d42f51a05f2f752d0ff07566c327c68
nRF52840-dk
make -f examples/Makefile-nrf52840 USB=1
None

Expected behavior /dev/ttyACM0 present just like the ot-ncp-ftd mode

Console/log output

[  369.039514] usb 1-1.2: device descriptor read/8, error -110
[  374.239518] usb 1-1.2: device descriptor read/8, error -110
[  374.459503] usb 1-1.2: new full-speed USB device number 13 using dwc_otg
[  379.519572] usb 1-1.2: device descriptor read/8, error -110
[  384.719541] usb 1-1.2: device descriptor read/8, error -110
[  384.839574] usb 1-1-port2: unable to enumerate USB device
[  541.109420] usb 1-1.2: new full-speed USB device number 14 using dwc_otg
[  546.319447] usb 1-1.2: device descriptor read/all, error -110
[  546.419422] usb 1-1.2: new full-speed USB device number 15 using dwc_otg
[  551.539426] usb 1-1.2: device descriptor read/64, error -110

Additional context CDC is connected to raspberry PI.

Raspbian GNU/Linux 9 \n \l
Linux raspberrypi 4.9.80-v7+ #1098 SMP Fri Mar 9 19:11:42 GMT 2018 armv7l GNU/Linux

About this issue

Original URL
State: closed
Created 5 years ago
Comments: 16 (15 by maintainers)

Most upvoted comments

@bukepo after discussing the topic with PM, nRF52840 Engineering A chip support is end of life. Nordic recommends to switch to nRF52840 rev. C or later (production chip). I will update the README.md of our platform to state this. I believe we can close the issue now.

LuDuda on Apr 12, 2019