NRF528323 Low Power Modes

[CharlesCurt]

Hi Everyone,

I'm having some trouble understanding the different combinations of low power modes and how to use them.

When I first power up my board I use about 500uA and after a certain action I draw 3.5mA forever.

I wish to return to this 500uA current draw range and still use ble. I want to be connected and waiting for then next action without 3.5mA constant draw. Any info on how the low power modes work would be amazing. I'm also trying to learn how to selectively turn off RAM and GPIO lines, so any info on that would also be great!

I currently set it into: SD_POWER_DCDC_MODE_SET

Thanks so much!

Charles

 

[Marjeris Romero]

Hi Charles!

The usual problem is that the board is in DEBUG mode. You shoIuld turn off all debug logging before doing current measurements. If this does not solve your problem I will need some answers from you in order to help:

• How are you measuring the current consumption?
• Could you post some code showing how you put the device into low power mode?
• What do you mean by "a certain action"?

And for more information about the power modes I would recommend to take a look at Section 18: POWER in the product specification.

Best Regards,

Marjeris