maybe app data overflow under bootloader..

[cucu]

[Dev Env]

• nRF52 DK ( Tech Tour) (PCA10040)

• IoT SoftDevice (s1xx-iot-prototype3_nrf52_softdevice.hex)

• IoT SDK 0.9

• coap server example Base

[Question]

• my project use pstorage, twi0, saadc, gatt service(custom) , gatt bas service, ibeacon, eddystone....

• my project work well (app + softdevice)

**- if boot loader is loaded , my app is not work (app + softdevice + boot loader) **

• i guess app data is overflow under bootloader..

how can i debug it?

[cucu]

i tested pstorage data is not right. when bootloader + app +softdevice.. the reason is what??

[bjorn-spockeli]

The app data starts at 0x7B000 when a bootloader is present, i.e. located below the bootloader, please refer this InfoCenter page. Consequently, the bootloader will not overwrite the app data.

You can readout the data written to the app data using this nrfjprog command

nrfjprog –memrd 0x0007B000 –n 8192