How to always Write to FLASH

RE: How to always Write to FLASH

Simonr — Fri, 24 May 2019 09:16:35 GMT

[quote user="BartoszT"]but now it is ok and this "ok" or "no ok" looks like SoftDevice propability dependend.[/quote]

What does this mean? And why would you need to disable (switch off) the SoftDevice, do you mean going to deep sleep to save power?

Best regards,

Simon

RE: How to always Write to FLASH

BartoszT — Fri, 24 May 2019 08:55:38 GMT

This is my SDK: nRF5_SDK_15.2.0_9412b96

Yes, I'm using SoftDevice 132.

For now I can switch off SoftDevice before erasing, because after that NRF52832 goes to NVIC_SystemReset() and it works fine. I have also few situation when i can't switch off the SoftDevice but now it is ok and this "ok" or "no ok" looks like SoftDevice propability dependend.

RE: How to always Write to FLASH

Simonr — Wed, 22 May 2019 10:51:59 GMT

Hi Bartosz

Sorry about the late reply, but Ketil has been busy lately and I just now got to this case.

First off. What SDK version are you using? What example (if any) is your application based on, and do you use the SoftDevice or not?

If you're using SDK version 14.0 or newer, you should check out the nrf_fstorage_erase function in nrf_fstorage.h within the SDK, to see how that function works.

If you're using an older SDK version you should check out the fs_erase function in fstorage.h

Best regards,

Simon

RE: How to always Write to FLASH

BartoszT — Fri, 17 May 2019 08:50:24 GMT

Now im working witj DEV KIT nRF52. Previous problem disappeared.

Now FlashErase doesn't work each time I use it.

It means that at the beginning when the device starts, FlashErase works, but later during the work of the device no longer.

My code for erasing:

what is the cause of the problem?

RE: How to always Write to FLASH

ketiljo — Thu, 21 Mar 2019 15:14:12 GMT

Sounds like the supply voltage is being too low. Can you share the schematic? Do you have the correct value on all the decoupling capacitors?