Nrf5340 DTM via USB with R&S 500/270

[Hilario Lepe]

I am trying to perform DTM on our custom board using our CMW 270, but cmw  doesn't detect com port via usb cable. It appears I need  to install new driver onto cmw270. Device manager gives message Nordic Remote Shell Sample.  Can you please advice what driver I need to install to run dtm?

I am able to run DTm on my desktop via USB cable.

On our previous project we used Uart and virtual com to perform DTm on our CMW, but now we ae using nrF 5340 that uses USB to receive commands?

We used SDk 2.4 to flash DTM on our custom device.

[Sigurd]

Hi,

You can use the built-in USB on the nRF5340, or you can use UART with a UART-to-USB virtual COM port / FTDI cable.

Here is some documentation on how to use it with built-in USB: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.4.0/nrf/samples/bluetooth/direct_test_mode/README.html#usb-cdc-acm-transport-variant

[rockerderek]

Hi Sigurd,

I'm trying to use SDK v.2.3.0 nrf/samples/bluetooth/direct_test_mode with built-in USB on nRF5340 or the UART-to-USB virtual COM port with an FTDI cable that has a TC2030 connector on the end, but that hasn't worked.

The TC2030 connector looks like this on our PCB:

6242.TC2030-MCP-NL.pdf

Based on this document DTM for DUT

Our UART_DBG_TX pin is P0.28 and the UART_DBG_RX pin is P0.27. Do I need to edit the nrf5340dk_nrf5340_cpunet-pinctrl.dtsi file like so?

And do I add CONFIG_DTM_USB=y to my prj.conf file without adding any files like zephyr/drivers/usbc.h or other code to use DTM on my custom board via USB? I also added CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y to the prj.conf file since we don't have an external 32KHz oscillator between X1 and X2. Is there anything else I need to do to make the nRF Connect DTM app on my Windows 10 PC work with my custom board?

[Sigurd]

Hi rockerderek,

Please open a new case for this question.

[rockerderek]

Hi Sigurd,

I opened Case ID: 311282 if you have any ideas what could be going wrong.

Thanks,

Brad