nRF52840 change USBD Serial Number

RE: nRF52840 change USBD Serial Number

AntonHellbe — Mon, 27 May 2019 11:26:13 GMT

I apologize for this. I took a break from this project and I completely forgot about that port. It works perfectly...

Sorry for taking up your time with this silly issue.

RE: nRF52840 change USBD Serial Number

Øyvind — Mon, 27 May 2019 11:23:53 GMT

To clarify, after programming your board, you must change USB port to the one marked nRF USB:

Please try this, and let me know how that works

RE: nRF52840 change USBD Serial Number

AntonHellbe — Mon, 27 May 2019 11:15:13 GMT

I'm using a micro USB cabel to the micro usb connector that is soldered to the devkit (cannot find any label for it).

I will flash the composite example and see what happens.

RE: nRF52840 change USBD Serial Number

Øyvind — Mon, 27 May 2019 10:54:48 GMT

What USB connector are you using to connect the board? nRF USB I presume?

There is a bug in the documentation for SDK15.0 which does not state what USB should be connected:'

SDK15.0

vs SDK15.3

RE: nRF52840 change USBD Serial Number

AntonHellbe — Mon, 27 May 2019 09:01:03 GMT

Hi,

You are correct, I was looking at the wrong device. So I guess the problem is that the USBD HID does not appear as a device at all. The only thing that appears when i plug in the devkit is the standard "SEGGER J-Link"

RE: nRF52840 change USBD Serial Number

Øyvind — Mon, 27 May 2019 07:13:54 GMT

[quote user="AntonHellbe"]I have no idea honestly, I have checked the config folder where the "app_usbd_string_config.h" file is located. And it clearly says "Nordic Semiconductor".[/quote]

Are you sure that you are looking at the correct device? What type of keyboard are you using on your computer?

The VID and PID do not match ours at all.

From sdk_config.h

// <i> Vendor ID ordered from USB IF: http://www.usb.org/developers/vendor/
#ifndef APP_USBD_VID
#define APP_USBD_VID 0x1915
#endif

// <s> APP_USBD_PID - Product ID

// <i> Selected Product ID
#ifndef APP_USBD_PID
#define APP_USBD_PID 0x520B
#endif

Ref: http://www.linux-usb.org/usb.ids

RE: nRF52840 change USBD Serial Number

AntonHellbe — Fri, 24 May 2019 13:01:34 GMT

Hi Öyvind,

Can you please specify which example you are using? Just so I can try to reproduce.

My project is based on examples/peripheral/usbd_hid_composite (Everything regarding HID mouse is removed)

Where did Holtek Semiconductor come from? Is this something you've added?

I have no idea honestly, I have checked the config folder where the "app_usbd_string_config.h" file is located. And it clearly says "Nordic Semiconductor".

Here is the output from lsusb -v

bus 001 device 007: id 04d9:0295 holtek semiconductor, inc.                     
1389 device descriptor:                                                              
1390   blength                18                                                     
1391   bdescriptortype         1                                                     
1392   bcdusb               2.00                                                     
1393   bdeviceclass            0 (defined at interface level)                        
1394   bdevicesubclass         0                                                     
1395   bdeviceprotocol         0                                                     
1396   bmaxpacketsize0        64                                                     
1397   idvendor           0x04d9 holtek semiconductor, inc.                          
1398   idproduct          0x0295                                                     
1399   bcddevice            2.07                                                     
1400   imanufacturer           0                                                     
1401   iproduct                1 usb-hid keyboard                                    
1402   iserial                 0                                                     
1403   bnumconfigurations      1

RE: nRF52840 change USBD Serial Number

Øyvind — Thu, 23 May 2019 11:32:40 GMT

Hi Anton,

[quote user=""]I'm using the USBD for HID keyboard on my nRF52840 and I'm trying to change the serial number.[/quote]

Can you please specify which example you are using? Just so I can try to reproduce.

[quote user=""]One observation is that the USBD Hid appears with the name "Holtek Semiconductor" and not "Nordic Semiconductor" which is specified in the app_usbd_string_config.h file.[/quote]

Where did Holtek Semiconductor come from? Is this something you've added?

Thanks,
Øyvind