Storing characteristic data after on_disconnect

RE: Storing characteristic data after on_disconnect

kerem — Sun, 14 Jun 2015 06:33:08 GMT

I see see some uart related stuff in your example yet it works over reboot. After using a 64 byte block my code started to work too, it just does not load the block right away but after a reconnect, i can see the correct value is loaded. Maybe you just need to wait a few milliseconds for the operation. Im still not 100% confident with this but ill do a bit more experimenting when i got the time. Thank you.

RE: Storing characteristic data after on_disconnect

michaeld — Fri, 12 Jun 2015 06:08:31 GMT

If you could post you're code I can compare it with my code maybe I spot a difference.

RE: Storing characteristic data after on_disconnect

Nikita — Fri, 12 Jun 2015 05:58:45 GMT

Here is example project based on ble_app_hrs example for pca10001 from SDK v6.1.0, tested with SD v7.3.0. I added to this project custom service with two characteristics. Second characteristic with read and write permissions allows you to read and write 1 byte value that will be stored in pstorage. The characteristic value located in pstorage will be assigned to this characteristic after reset.

ble_app_hrs_pstorage.zip

RE: Storing characteristic data after on_disconnect

kerem — Thu, 11 Jun 2015 17:26:31 GMT

Please see my edit, it did not work either. Can it be something wrong with my setup? Where else would you check if youre content with the code, i did no modifications to the linked example project. The chip is nrf51422 QFAC, im using nrf51-dk with sd 7.0.0 and sdk 6.1.0 on keil.

RE: Storing characteristic data after on_disconnect

Stefan Birnir Sverrisson — Tue, 09 Jun 2015 13:52:40 GMT

Hi kerem

Your SDK and SD combination should work fine. What hardware are you using by the way? Please read the chip markings on your nRF51 chip and report. Have you seen this example? It should work fine with SDK 6.1.0.

RE: Storing characteristic data after on_disconnect

kerem — Tue, 09 Jun 2015 02:50:05 GMT

Is it possible that pstorage is unstable on nrfdk-51 with sdk 6.1.0 and sd 7/7.1? I tried exactly as you did, made sure all store operation waits for clear callback and even load waits for callback. All called from main, outside BLE callbacks and i made sure the data im copying around is correct. What else i can try? I received all callbacks btw for clear, store and load. It's just like nothing is being stored or loaded.

RE: Storing characteristic data after on_disconnect

kerem — Mon, 08 Jun 2015 14:50:17 GMT

I was just about to try that, thank you.

RE: Storing characteristic data after on_disconnect

michaeld — Mon, 08 Jun 2015 14:03:34 GMT

As you see in my post the problem for me was that you can never execute a pstorage action on a BLE event. So try adding a if statement in your main loop and checking the disconnect from there to execute your pstorage.