nRF9151: Hardware validation of MIPI RFFE switch

[JordanYates]

Is there an AT command (For modem firmware >= 2.0.2) that can be used to validate whether the LTE modem can communicate with an external MIPI RFFE switch (for example on a Thingy:91 X).

The context of this question is for validating correct assembly of PCBA's in a production setting in the most efficient way possible.

As an example of what I am looking for, communications with a SIM can be checked through:
 1. LTE_LC_FUNC_MODE_ACTIVATE_UICC
 2. "AT%XICCID"
 3. LTE_LC_FUNC_MODE_DEACTIVATE_UICC

[Simonr]

Hi

Please check out the MIPI AT commands in nRF91x1 AT Commands. The MIPI RFFE interface access seems to be a good place to start where you can directly access the MIPI RFFE registers on your device.

Best regards,

Simon

[JordanYates]

I have already read those AT commands, and as far as I can tell the commands described (%XMIPIRFFEDEV, %XMIPIRFFECTRL) are telling the modem what register settings to use when setting up the switch, not actually communicating with the switch.

The %XMIPIRFFEDBG command is probably the closest command, but is unfortunately limited to the PTI (and also is missing all documentation on the nRF91x1 pages)

%XRFTEST looks like it is available on the full firmware images, would that return an error if the MIPI switch configuration failed?