Configuring nRF5340 for RF measurements

[arun12]

How to configure nRF5340 for RF measurements. which programs can be flashed to the device to get 100% TX and 100% RX and measure the RF parameters

[runsiv]

Hi, As you can see here it does not make sense to measure both VDD_HV and VDD."

By default, the high voltage regulator is configured to source external components from the VDD pin. To save power this feature must be disabled. For details, see High voltage mode."
Is the device running in HV mode? Also, is this a custom board? I'm not sure that you would gain anything to measure the current consumption since if it is a custom boards you it can be hard to correlate power consumption with RX effect. 

Regards

Runar

[arun12]

Hi Runar,

What did you mean by custom mode I'm using a nRF5340 DK and putting it into modes like advertisement using nRF connect in V S Code. 

So my question here is at that time, which of these rails(VDD & VDD_HV) can give the chips current consumption at these modes.

Regards,

Arun

[runsiv]

I was supposed  to write custom board. Since you are using the DK we have guide for current measurement here. 

I would also suggest to upgrade to a newer version of NCS for doing the radio test sample. I'm not sure what is going on v2.3 but I have tested a few newer versions and they all build. 

Regards

Runar

[arun12]

Hi Runar,

I've updated the NCS version now but I'm facing these error on building an example,

this issue is facing in Both NCS versions, v2.3 and v2.5.2.

please help me resolve this.

Regards,

Arun

[arun12]

Hi Runar,

Here the documentation is discussing on how to carry out the measurement right?

I'm asking you which number to be taken into consideration as the chips current consumption in these different states.

Regards,

Arun

[runsiv]

I'm a bit unsure of what you mean. if you want to measure the current draw of the DK you should follow the guide so your setup is correct. Since the DK has a extra circuits outside the nrf5340 you need to have the correct setup so you don't measure the current draw of the whole DK. As for numbers, you could for example compare your numbers to the online power profiler tool 

Regards

Runar

[arun12]

Hi Runar,

Other than measuring the current consumption using Online power profile tool, is there anyway I can measure the current consumed by nRF5340 at these states?

The tool chain issue is solved on setting " set default toolchain". 

can you also guide me in achieving the below states?

1, sleep

2, BLE Advertisement

3, BLE Scan

4,BLE Connected 

5,active TX and RX

Regards,

Arun

[runsiv]

Good to hear that is fixed

I don't think we have a samples that covers all that you are asking for. But we do have a BLE power profiling sample

If you have more questions regarding optimizing for current I would suggest to create a new ticket as we try to keep it to one topic for each thread

Regards

Runar

[arun12]

I'm not asking one example to execute all these states but all the examples that can put the device in these states.

Regards,

Arun

[runsiv]

We don't have any list of which examples enters the different states. I would recommend to either use the mentioned sample as it is made for power profiling or create a sample that suits your needs. If I misunderstood you, please try to reword the question. 

Regards

Runar