How to detect gpio interrupt for 10 seconds.

[balaji]

Hi,

We are using nrf51822 custom board.

i want to hard reboot of my device whenever gpio button is pressed for longer than 10 seconds.

i am using ble_app_hrs application.

For that i started 10 second timer whenever in button_event_handler whenever button is pressed.

in time out handler i am checking whether the button gets low or not.

if it low i am calling this function.

sd_nvic_system_reset();

But my device is not reset.

Kindly suggest me how can i achieve this.

Is there any sd api to power off and on the device.

Regards Balaji

[Sébastien Despont]

Hi,

I am using NVIC_SystemReset to reset the chip and it is working.

By the way, you should implement a gpiote event on your button pin to catch if the user release the button before the end of the timer.

Because in your case, the following scenario is working :

• Press button 1 second
• Release the button and wait 8 seconds
• Press button 1 second --> BAM! hard reset

[balaji]

Hi Sebastien,

Thanks for your reply.

But you press button once again it will again start timer for 10 second.

so it will not hard do reset.

Regards Balaji

[Sébastien Despont]

Ok, cool. Have a nice day