example code to generate different nrf52 reset cause

[yogeshiggalore]

Hi team, 

I am working on a feature to capture different reset reasons and take action. If someone has an example code to create these will be a great help.

[Jørgen Holmefjord]

Hi,

We do not have example code that can be used for all reset reasons, but we have examples for the most typical use-cases.

• OFF: System OFF example with wakeup from GPIO.
• NFC: Wake on NFC Example
• RESETPIN: Press the reset button on the DK (make sure CONFIG_GPIO_AS_PINRESET is defined in the project). Alternatively, you can connect a GPIO the Reset pin and assert the GPIO.
• SREQ: Call NVIC_SystemReset() from code.
• LOCKUP: The only way I know to cause CPU lockup is to trigger a HardFault from the HardFault handler.
• DOG: See WDT Example. Not pressing the button within 2 seconds to feed the watchdog will cause a watchdog reset.
• DIF: As far as I know, this can't be done from code, but will happen if you attach the debugger when in system OFF mode.
• VBUS: Not aware of any example codes showing this, but it should be as simple as entering System OFF mode, then connect the nRF_USB port to power.
• LPCOMP: Start out with the LPCOMP Example and extend it with going to System OFF after initialization. 

Best regards,
Jørgen

[yogeshiggalore]

thanks, jorgen

this helps a lot. I will try to create an example code as you suggest.