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Nordic Case Info
  • Case ID: 327566
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Unable to make Cellular Monitor v2.4.0 work.

JackW

I am able to open up the Cellular Monitor and successrully select the device an get a connection.  However the option to ' Open a Serial Terminal' is greyed out, and so not available.

  • 0 in reply to Charlie

    Thanks Charlie,

    Can you please say more about the nRF9160 modem trace backend. Where is the code on the DK that makes this work?  I assume it must be in the Asset Tracker V2 application firmware that is loaded on the DK.

    I can't understand why our custom hardware can't be configured exactly like the DK.  It has exactly the same nRF9160 with exactly the same UARTs so it should be possible to configure the code to make our HW behave the same as the DK.

    Specifically, we would like to have a way to run modem traces on our custom hardware for troubleshooting purposes.  If we can't use the Cellular Monitor app for that, is there another way we can do that?

    Thanks for your help,

    Jack

  • 0 in reply to JackW

    Hi Jack,

    Modem track is a feature of Modem library and enabled by some at commands, you can find the details here Features of nRF91 Series — nRF Connect SDK 2.6.1 documentation (nordicsemi.com). Its configuration can be found in NCS source codes v2.6.1\nrf\snippets\nrf91-modem-trace-uart.

    On the nRF9160DK board, nRF52840 works as an interface MCU. One of its function is to cover these two UART ports as USB VCOM ports, so the PC can communicate with them.

    I am not sure if you used exactly the same design. If just one UART is connected and work as AT commands shell on your design, you also need to connect UARTE1 with PC though a TTL USB converter in order to get modem trace from PC app.

    Can you share your hardware schematic, so I can have a check if both UARTs are connected with nRF52840? Also keep in mind that we offer free hardware reviewer for our customers. Please create a new ticket if you need this service.

    Best regards,

    Charlie

  • 0 in reply to Charlie

    Hi Charlie,

    OK, were able to modify our firmware and we can now connect to the Cellular Monitor.

    Thanks very much for your help.  You can close the ticket now.

    Thanks Again,

    Jack

  • 0 in reply to JackW

    Great to hear! You are welcome.

    Best regards,

    Charlie

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