Does BANK1 gets erased after successfull OTA upgrade via BLE

[Vignesh R]

Hi,

Iam using "pca10056_s140_ble" secure bootloader example for my project.

FYI. My project gets its new firmware from internet and stores it in BANK1 memory using GSM module.

My question is:

1.Whether the secure bootloader erases the BANK1 memory by itself after an successful firmware update via BLE or do we have to erase the contents of BANK1 memory before i try to write something in it??

TIA.

[Vignesh R]

Hi, thanks for the update.

I have another doubt:

1.When does the BANK1 contents gets erased if i execute the DFU via BLE for the 2nd time?? 

[helsing]

The bank is erased on the fly during the DFU transfer. One page at a time.

[helsing]

To be more specific, the flash page is erased whenever a new dfu object is created with the Create request.