Run DTM features while hci_rpmsg is running on the network core

[kpreiss]

Hi,

We've migrated our product from using two processors (a STM32F7 running the application and an nRF52832 running BLE/NFC) to one, the nRF5340.  Since the nRF52832 had ample FLASH memory, we were able to incorporate the Direct Test Mode (DTM) functionality into the radio app.  This allowed us to execute the DTM tests directly from a user interface which was very convenient for doing FCC testing. 

On the nRF5340 processor, we're running the hci_rpmsg application on the network core.  Is there a way to run DTM through the HCI rpmsg interface?  Or would we have to program the network core with the DTM app?

Thanks

[Sigurd]

Hi,

Is there a way to run DTM through the HCI rpmsg interface?

We don't have support for this.

Or would we have to program the network core with the DTM app?

Correct.

[kpreiss]

What does the CONFIG_BT_CTLR_DTM_HCI=y Kconfig parameter do?  This doesn't enable DTM functionality in the softdevice controller app?

[Sigurd]

Hi,

The SoftDevice Controller does not support Direct Test Mode over HCI.