How to see BLE Radio TX only and RX only current numbers

RE: How to see BLE Radio TX only and RX only current numbers

wlgrd — Wed, 11 Dec 2019 09:31:08 GMT

There seems to be something fishy with your kit or calibration values. Press CTRL+SHIFT+A, go to Resistor Calibration and press Reset. Your PPK is for sure not showing you the correct values.

RE: How to see BLE Radio TX only and RX only current numbers

Edvin — Mon, 08 Apr 2019 08:59:27 GMT

[quote user="Jonnavittula sridhar"]Yes we cut SB40 on nRF52840 DK.[/quote]

Sorry. I meant SB40, yes. And the pins on P22 is not shorted, right? Where did you connect the USB cable? Did you use the USB port on the DK or the PPK?

BR,

Edvin

RE: How to see BLE Radio TX only and RX only current numbers

Sridhar Jonnavittula — Thu, 04 Apr 2019 11:34:41 GMT

Yes we cut SB40 on nRF52840 DK. We are using updated PPK app only.

Switch positions - SW3 DK, SW4 DK, SW2 DK

First we want to measure Radio TX, RX only current values by nRF52840 DVK.

Please help how to measure current consumption values to be taken from power profiler app?

RE: How to see BLE Radio TX only and RX only current numbers

Edvin — Thu, 04 Apr 2019 10:53:40 GMT

Have you cut SB9 on your DK before doing the measurements? I don't think you actually have 80mA current peaks.

Also, can you try to update the power profiler app?

It should say update next to the Power Profiler app.

Does that make a difference? Remember to check if SB9 is cut. Or are you using a custom PCB?

Also, in what positions are your switches on the PPK? SW2, SW4 and SW3?

Best regards,

Edvin

RE: How to see BLE Radio TX only and RX only current numbers

Sridhar Jonnavittula — Thu, 04 Apr 2019 10:35:51 GMT

Suppose if in these below snapshots for advertising

PPK

Online_PPK

How to exactly get the TX, RX currents in PPK by comparing it to online PPK figure?

From which point to point we have to select in PPK for Radio TX, RX currents.

That's where we are confusing.

RE: How to see BLE Radio TX only and RX only current numbers

awneil — Thu, 04 Apr 2019 09:39:55 GMT

So how about posting some examples of what you are seeing ?

RE: How to see BLE Radio TX only and RX only current numbers

Sridhar Jonnavittula — Thu, 04 Apr 2019 09:33:15 GMT

Yes we were aware of the online power profiler. But what nRF connect for PPK depicted is different from the online profiler right. So we cannot depict exactly(Radio TX, Radio RX) in nRF connect application. Can you please explain us by comparing both graphs?

RE: How to see BLE Radio TX only and RX only current numbers

awneil — Thu, 04 Apr 2019 09:23:20 GMT

You might try looking at this to get a feel for what the power profiles look like:

https://devzone.nordicsemi.com/power/