nRF52840-DK 3.0.0 and non working usb examples

[Mike L]

Good day.

I have nRF52840 DK. Stickler on board says "PCA10056 3.0.0 2022.20 1050281902".
I'm trying to test USB examples from SDK but nothing seems to work (or I'm doing something wrong).

I've downloaded nRF5_SDK_17.1.0_ddde560 and trying to run e.g. usbd_hid_composite example. I'm using Programmer v3.0.7 to write usbd_hid_composite_pca10056.hex to device. Cables connected as specified in Testing section. After hex file is flashed, I power-off and power-on device and see LED-4 is ON. This means that library is running as I understand, but buttons do nothing, and other LEDs do not react to CAPS or NumLock switching. Also, no new USB devices appears in device manager.

My OS
Edition Windows 11 Pro
Version 22H2
OS build 22621.1265
Experience Windows Feature Experience Pack 1000.22638.1000.0

[Mike L]

I also tried to compile and flash Rust example from nrf52840-hal (v0.16.0)   - I can see in the debugger, that execution reaches and runs `loop`, but when I run this example, no new serial ports appear, still only two from J-Link connection.

[Kenneth]

Have you followed the description for Testing?
https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/usbd_hid_composite_example.html#usbd_example_hid_composite_test

If you still have issue, maybe share a picture of your DK with USB cables (also make sure that you are using USB cables that is not meant only for charging).

Kenneth

[Mike L]

Hey. Thank you a lot for replying.

Kenneth said:

also make sure that you are using USB cables that is not meant only for charging

The issue turned out to be USB cable I used to connect to `nRF USB` port. After trying bunch of USB I was able to fine one that works. Both - examples from SDK and Rust hal example are working as expected now.