RTOS/CC2640: SNV FLASH data getting erased on reset

Arun Joe

Part Number: CC2640
Other Parts Discussed in Thread: BLE-STACK

Tool/software: TI-RTOS

Hi,

I modified the SimpleBLEPeripheral example to store data to the SNV Flash memory, I'm able to do write and read when the

cc2640 is powered but once the power is disconnected and reconnected again, all the data in the flash is also lost,

how can I solve this issue?

Regards,

Joe

over 8 years ago

0 JXS over 8 years ago

TI__Guru** 105180 points

Hello Joe,

Are you using BLE-Stack v2.2.1 (Released Oct 2016) which as the following fixed issues from the release notes:

Best wishes

0 Arun Joe over 8 years ago in reply to JXS

Expert 1780 points

Hi, I'm using this version (2.2.1) only and I'm able to write 256 bytes and read it back as well, but that data is not retained on power loss.

Regards,
Joe

0 Arun Joe over 8 years ago in reply to Arun Joe

Expert 1780 points

Hi JXS ,
Can you reply to this?

Regards,
Joe

0 JXS over 8 years ago in reply to Arun Joe

TI__Guru** 105180 points

Hi Joe,

Can you attach a small modification to simple_peripheral that demonstrates this issue on BLE-Stack v2.2.1 with the LAUNCHXL-CC2650?
Have you checked the SNV page(s) to see if your data is there?

Best wishes

0 Arun Joe over 8 years ago in reply to JXS

Expert 1780 points

Hi JXS ,
I have an LCD interface that reads back the data stored in the SNV pages and that is how I found that the data is getting lost

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RTOS/CC2640: SNV FLASH data getting erased on reset