Power consumption with DFU

[annapalu]

Hi all,

Can you give me an estimate about the power consumption required for the update Fw on OTA. Our product has a solder batteries, so it's important know if in his life we change the FW the batteries can survive until the end of life of device.

Regards, Anna

[Hung Bui]

Hi Anna,

Doing DFU is no different from a normal BLE connection and activity. You can use this online tool to do calculation. Depend on the application size, the DFU period may last long or short. What made the DFU different is the flash activity when it receives image and when it does swapping. You can have a look at section 11 to find the times require for the CPU to be active to do flash activity.

Do actual measuring would be a good idea for calculating the current consumption required.

[annapalu]

Thanks for the answer. Section 11 of what?

Thanks, Anna

[Hung Bui]

Sorry, of the nRF52832 product spec if you are using that chip. Please let me know which chip you are using.

[annapalu]

NRF52832-CIAA

[Hung Bui]

Yes, please use the nRF52832 product spec.