Radio_test commands giving diff results

[Rakshita]

Hi, I am using a module named MS12SF1 (nrf5340 + nrf7002). I was trying to write the Mac address for one time programming by using radio_test sample code.
Before doing this I executed one more command which is wifi_radio_test show_config as per mentioned in https://docs.nordicsemi.com/bundle/ncs-2.6.1/page/nrf/samples/wifi/radio_test/sample_description.html this link

I tested this on 2 different modules and they are giving different results. Attaching 2 images to show the difference.
I wanted to know what exactly is the reason behind this as the modules are same

......

[Håkon Alseth]

Hi,

 

Unfortunately, there seems to have been a problem in the uploading of the images. Could you share these again?

 

Kind regards,

Håkon

[Rakshita]

Yes sure

[Håkon Alseth]

The first one has problems detecting the nRF7002 module, indicated by the <err> prints in the beginning.

Have you checked the soldering on that specific board?

 

Kind regards,

Håkon

[Rakshita]

Yes checked the soldering and actually we have around 15pcbs and we are facing issues in all of them but this was not happening with the older pcbs (which were exactly same, same module is used)

[Håkon Alseth]

Could you verify that the voltages going into the module is correct?

Have you checked that your pin-configuration is as per the datasheet of the module?

https://en.minewsemi.com/file/MS12SF1-WiFi+BLE-Combo-Specification-MinewSemi.pdf

 

Based on page 12, there are differences in how this module enables the different internal voltage networks, for instance "VDDIO70" as compared to nrf7002dk.

Could you share how you setup the device tree for your board?

 

Kind regards,

Håkon

[Rakshita]

Yes we have made a separate board file for configuring pins as per the module
3.3V is going into the module
I am sharing the code of radio test

8535.radio_test.zip

[Håkon Alseth]

Thank you for sharing these, the pin outs in zephyr.dts seems to match the module you're using.

Rakshita said:

3.3V is going into the module

This is within the electrical specs of both nRF5340 and nRF7002, so that should be OK.

Rakshita said:

Yes checked the soldering and actually we have around 15pcbs and we are facing issues in all of them but this was not happening with the older pcbs (which were exactly same, same module is used)

If all, ie. 15 out of 15 devices, of your new PCBs are not functional, it is highly likely a hardware issue.

When you say that the old PCB is exactly the same, do you mean that this is just a new batch of PCBs?

Do you have equipment to do a swap-test between a good PCB and a bad PCB to see if the issue follows the module?

 

Kind regards,

Håkon