CDC ACM USB example update driver and installation in the Ubuntu Linux

[ratnakar1978]

Hi, I am using nRF52840 kit and using Ubuntu Host PC. I am running usbd_cdc_acm_example with below link :

https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v15-2-0/usbd_cdc_acm_example?2011#usbd_cdc_acm_example_setup

I am not able to detect the dedicated nRF52840 USB port from EVK from host PC.

Is there any other configuration or driver need to do in this case.

Please support.

[haakonsh]

Which USB connector have you connected? 

Can you print out the list of devices in /dev? 

[ratnakar1978]

Firstly I had flashed example program on EVK using Debug COM port. Then I removed from that USB port and connected to Dedicated USB port which is interfaced with nRF52480 chipset.  And once I am connecting this dedicated USB port I am not able to detect the port and LED are also not working as per example.

[ratnakar1978]

Maybe I need suggestion on below testing method on Ubuntu Linux PC.

Test the USB CDC ACM Example application by performing the following steps:

1. Compile and program the application.
2. Connect the development kit to the host computer.
3. If you are running Windows 7, on first run CDC ACM driver installation is needed. To install the driver on Windows 7, follow these steps:
   • Open Device Manager
   • Right-click the development kit (look for the name "nRF52 ..." depending on the example)
   • Click "Update Driver Software..."
   • Click "Browse my computer for driver software"
   • Click "Browse..." and choose the folder sdk/nrf5/examples/usb_drivers
   • Click "Ok"
   • Click "Next"
   • Click "Install"
   • Click "Close"

I am not able to see any device manager in Linux for updating and selecting USB driver.

[haakonsh]

Maybe you need to set the nRF power source switch to USB. 

[jondyoung]

I have seem to have this problem on BusyBox linux too.  My TI MSP430 dev kit shows up as /dev/ttyACM0, but I get nothing for the ACM example in my NRF52340 dev kit.  When I plug the NRF52340 dev kit with ACM example firmware into Windows 10, it shows the com port just fine.