Assistance Needed with BLE Application Development on nRF5340 Development Board

RE: Assistance Needed with BLE Application Development on nRF5340 Development Board

Hieu — Mon, 08 Jul 2024 15:32:14 GMT

Hi Cristian,

You will need to take offset into account when reading the data. Could you please update the callback handler to only copy len, offset, and ~10 bytes from buf to a different location and set a flag; and then in another thread or the main loop, act upon that flag and print out the value?

I would like to look at what the data is like. Printing can take time, and the handler should be quick, thus I suggest copying the value out and print in a different context.

Hieu

RE: Assistance Needed with BLE Application Development on nRF5340 Development Board

Cristian — Mon, 08 Jul 2024 15:16:08 GMT

Hi Hieu,

I am currently absolutely sure that the data from the nrF APP is being sent correctly, and the error is reproducible consistently. However, I need to notify you that the len and offset are not always zero. Specifically, the length is 3 and the offset is zero, but sometimes the offset changes and becomes different from zero.

Cristian

RE: Assistance Needed with BLE Application Development on nRF5340 Development Board

Hieu — Mon, 08 Jul 2024 13:21:01 GMT

Hi Cristian,

Data corruption all the way to the application layer is not something that should happen at all.

Have you checked if the len and offset parameters are all 0?

Also, are you able to verify that the correct data is sent from the app?

Are you able to reproduce the issue consistently?

Hieu