switching to bootloader without a system reset nrf51822

[Sachin bejgamwar]

Hi,

we are currently using nrf51822AC device and nrf SDK12 . we need to do "switching to bootloader without a system reset nrf51822" as mention in subject . actually we want to run bootloader in some cases from application so in some conditions we should be able to run bootloader again. please suggest us the methods that we can do for this task . thank you.

[Kenneth]

Hi,

We don't have any background DFU that can work in parallel with application. Our DFU require a system reset to enter bootloader mode for firmware updates. There are several reasons why this approach have been selected, for instance it ensure that you have more flash available during firmware update and you have less risk of application issue to prevent DFU to fail.

[Sachin bejgamwar]

Ok, understood. can you suggests me out any of the method by which i can put my device in to bootloader mode without pressing the button at time of restart. i am ok with restarting device but what i dont want to do is pressing button at restart, it should go to bootloader mode when i restart it from my application code.... may be i will use (NVIC system reset )to restart my device and it should go to bootloader mode after that.. is it possible ? if so please suggest me out any method by which i can perform this. thank you

[Kenneth]

Have you checked out:
http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.3.0/ble_sdk_app_buttonless_dfu.html?cp=4_0_6_4_3_2