DC/DC with softdevice

RE: DC/DC with softdevice

Stefan Birnir Sverrisson — Fri, 04 Dec 2015 13:33:47 GMT

No, the DCDC is only used for radio operation. So if you enable the DCDC and use something else then the radio, it will have no effect on the current consumption.

RE: DC/DC with softdevice

Neodym — Thu, 03 Dec 2015 13:12:23 GMT

Hi, its there a possibility to enable the DC/DC also when the radio is not on? I think during the calculation we can save some percent of battery?

Best regards

RE: DC/DC with softdevice

Stefan Birnir Sverrisson — Wed, 02 Dec 2015 14:15:52 GMT

Info about the DCDC is on this thread. S310 v3.0 should be good to use with nRF51 third revision. Make sure you have the third revision nRF51, see the compatibility matrix for what nRF51 chips are third revision.

Yes, to enable the DCDC, you should use the sd_power_dcdc_mode_set function, as you already have mentioned. The DCDC only works however for the radio, other peripherals do not use the DCDC. So if you are not using radio, you will not see any difference. You should see the most difference when advertising, because then the radio is used a lot and the other pripherals not so much.

Yes, you are correct. With 3.6V supply voltage you should see the most difference between using DCDC and not using DCDC.