Hi Team,
we have one doubt regarding sleep current when we try to measure with power analyzer(nrf52840 EVM Board) .we got 5.23 micro amps instead of 2.35 micro amps.
we used this example code D:\santhosh\Penny\nrf52840\nrf-NRF52840\nRF5_SDK_17.1.0_ddde560\nRF5_SDK_17.1.0_ddde560\examples\peripheral\ram_retention for current measurement can you help regarding this so it will be so helpful for our team
Hello Santhosh,
Any current measuring device that can accurately measure down in the uA should be ok with measuring current. Unfortunately we do not have official documentation of measuring current by power analyzer.
However, You can try using source mode of your power analyzer which will power the board on the external header and will measure current simultaneously. The DK setup will be same as I mentioned before.
''You can find a switch (SW10) on the PCA10056 where you can choose to supply nRF52 directly using the supply header. This switch is called VEXT-> nRF. So if you now connect the PPK to the external supply header, flip this switch, and leave the USB connected to power the rest of the board, you should be powering the nRF52 from the PPK. You also have to turn the switch (SW6) to nRF Only from DEFAULT to avoid the leakage current. Also remember to reset the board or power on and off after flashing.
''
Try this and see what would be the outcome.
Best Regards,
Kazi Afroza Sultana
Hello Santhosh,
Any current measuring device that can accurately measure down in the uA should be ok with measuring current. Unfortunately we do not have official documentation of measuring current by power analyzer.
However, You can try using source mode of your power analyzer which will power the board on the external header and will measure current simultaneously. The DK setup will be same as I mentioned before.
''You can find a switch (SW10) on the PCA10056 where you can choose to supply nRF52 directly using the supply header. This switch is called VEXT-> nRF. So if you now connect the PPK to the external supply header, flip this switch, and leave the USB connected to power the rest of the board, you should be powering the nRF52 from the PPK. You also have to turn the switch (SW6) to nRF Only from DEFAULT to avoid the leakage current. Also remember to reset the board or power on and off after flashing.
''
Try this and see what would be the outcome.
Best Regards,
Kazi Afroza Sultana
