ANT Forum

I am having some difficulty in putting the nRF51422 in sleep mode. I am seeing a huge delay in execution of the sleep command.

The code that I am using is the follows:

nrf_gpio_pin_toggle(LED0);
err_code = sd_app_event_wait();

The attached figure shows the GPIO status pin (LED0) and the current consumption of the chip on the scope. It can be seen that there is a 14.4 ms delay between toggling of the pin and when the chip is put to sleep. What is the reason for this huge delay? Is there a way around it i.e. can the delay in execution of the command and when the chip is put into sleep be reduced? Since, I am working on a energy constraint system, reduction of power is of utmost importance to my application.

Thanks,
Vamsi