NRF52832 flash endurance

RE: NRF52832 flash endurance

Somesh Burkule — Thu, 30 Apr 2020 11:26:09 GMT

I am using following config.

SDK 15.2

nrf52832 chip

softdevice 6.1.0

s132

any change for this?

RE: NRF52832 flash endurance

Sigurd — Thu, 30 Apr 2020 10:14:29 GMT

Somesh Burkule

[quote user="Somesh Burkule"]is there any limit on read cycles in nrf52832?[/quote]

No.

[quote user="Somesh Burkule"]can we read fds infinite times?[/quote]

There is no limit here.

Note that this case is ~3 years old. If you have more questions, please create new case: https://devzone.nordicsemi.com/support/add

RE: NRF52832 flash endurance

Somesh Burkule — Tue, 28 Apr 2020 05:33:43 GMT

is there any limit on read cycles in nrf52832?

can we read fds infinite times?

RE: NRF52832 flash endurance

genis — Thu, 06 Apr 2017 08:20:19 GMT

Ok thank you. Apparently I didn't :)

RE: NRF52832 flash endurance

endnode — Wed, 29 Mar 2017 09:35:41 GMT

Hi,

No, erase always work on page level, it's flash technology. This clears whole page to 0xFF..FF and you can then write word by word, even to the same address, and set any bit to 0 (obviously once you do it for particular bit it won't become 1 until next page erase but you can be "rewriting" it to 0 several times;). Note that there is another fenomenon on nRF5x flash and that's "Amount of writes allowed in a block between erase". You can read more about it here.

Now once you exceed guaranteed number of erase/write cycles on particular page it can be unpredictable. Very likely nothing will be happening for some time and then it might be failing on some operations (but still fixable by retry) and in the end page will become inaccessible at all. That can be long process and it can be fast. Here is answer from Nordic on the same topic (have you searched the forum before asking... or not?:)