saadc sample cant use with sd_power_system_off()

[liu_zhixiang]

When I use saadc to sample battery's power,the software restart ceaselessly.I use the steps as following:

1.void saadc_init(void).

2.void saadc_callback(nrf_drv_saadc_evt_t const * p_event).read the sample value.

3.use nrf_drv_saadc_sample() in bsp_event_handler function. When button has pushed,saadc sample.

If I comment out saadc,software can go to sleep with sd_power_system_off().If do this ,device cant sample battery.

If I comment out sd_power_system_off(),software can work with saadc,but cant sleep.

So I don't know how to use saadc to sample and device can sleep not restart ceaselessly. 

[liu_zhixiang]

I found the source of question . In saadc_callback() , I compare saadc value with 0.9V. When saadc value is less than 0.9v, I call sleep_mode_enter() to deepest sleep. In my project, I have a button pushed to sample battery level. So , in this way , my software restarts continuously, when I push the button. If I comment out sleep_mode_enter(), the software can work normally. But the device cannt sleep to save power.

[liu_zhixiang]

I see. This is normal.When I push button, bsp_btn_ble_sleep_mode_prepare() function judge that the button is pressed all the time.So software restart continuously.  When I  release button, the device can sleep. 

[FormerMember]

From what I understand, you have solved the problem?

[liu_zhixiang]

Yet. This question has been solved. Thinks.