NRF52833 programming speed

RE: NRF52833 programming speed

Kenneth — Wed, 06 Jul 2022 12:38:34 GMT

I did a test here, and measured about ~20seconds on an nRF52833-DK:

The dump.hex is the entire flash of the nRF5233.

Best regards,
Kenneth

RE: NRF52833 programming speed

BenSiso — Wed, 06 Jul 2022 12:17:12 GMT

Thanks for the fast responding.

I burn 16 times same hex on same product(not parallelly).

commands and total time:

nrfjprog --family NRF52 --reset --sectorerase --program rev4.hex

ultra+ 03:18.667890 (3 min,18 sec...)

base 03:19.439892

nrfjprog --family NRF52 --reset --chiperase --program rev4.hex

ultra+ 40.858601 (40 sec..)

base 41.500295

nrfjprog --reset --chiperase --program rev4.hex

ultra+ 42.461306

base 43.040684

Do you have any idea ,besides having two programmers in parallel, to make it faster ?

Thanks,

Ben

RE: NRF52833 programming speed

Kenneth — Wed, 06 Jul 2022 12:09:54 GMT

The SWDCLK speed is max 8MHz: https://infocenter.nordicsemi.com/topic/ps_nrf52833/dif.html#unique_1971478971

You don't write anyting about which nrfjprog command you are executing and what time you measure? It do take some time to erase, program and verify yes.

You may consider having two programmers in paralell if the speed does not meet your requirements.

Best regads,
Kenneth