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nRF52840 detection in LINUX PC

Sridhar Jonnavittula

Hi all,

What I need to do for detection of nRF52840 PDK as /dev/ttyUSB0 when connected to LINUX PC?

I have tried all serial examples but every one is detecting PDK as /dev/ttyACM0 after connecting USB to micro USB cable to J2 power source port near interface MCU.

Can any one help me understand this?

Thanks

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  • +1

    Hi,

     

    The segger IC (USB connection "J2") will always enumerate as a ACM device, as it is a USB com port emulator. It will also enumerate a mass storage device (/dev/sdX).

    In order to enumerate the nRF52840 over USB, you need to connect to connect J3, also marked "nRF USB".

    I see that you are using the PDK. Note that we do strongly recommend that you obtain the latest silicon version, which is revision 1. Engineering sample A workarounds for USB has been removed from the SDK from v15.

     

    Kind regards,

    Håkon

     

Reply
  • +1

    Hi,

     

    The segger IC (USB connection "J2") will always enumerate as a ACM device, as it is a USB com port emulator. It will also enumerate a mass storage device (/dev/sdX).

    In order to enumerate the nRF52840 over USB, you need to connect to connect J3, also marked "nRF USB".

    I see that you are using the PDK. Note that we do strongly recommend that you obtain the latest silicon version, which is revision 1. Engineering sample A workarounds for USB has been removed from the SDK from v15.

     

    Kind regards,

    Håkon

     

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