SAADC in polling mode instead of interrupt/callback

[himanshu pande]

Hello,

Can the SAADC driver be modified to be used in a polling mode instead of interrupt?

E.g. I modify the driver to not use any interrupt(comment out interrupt enabling calls). And then in a periodic task(thread)

Sample pseudo code below

int16_t buffer[5];

void Task_5ms()

{

if(NRF_SAADC.EVENTS_RESULTDONE == 1)

{

nrf_drv_saadc_buffer_convert(&buffer, 5)

for (i = 0; i < 5; i++)
        {
            //Retrieve elements from buffer[0] through buffer[4]
        }

}

}

Will this approach work? The reason to do it as we need as few interrupts in system as possible for safety reasons.

Best Regards,

Himanshu.

[Steven Bauer]

The SAADC driver can be modified to be used in a polling mode instead of interrupting. This is done by changing the SAADC driver to be configured as a polling driver. This means that the SAADC driver will only be activated when the polling mode is enabled slope unblocked. This is useful for situations where a polling mode is required but the SAADC driver is not required to mapquest driving directions. For example, a polling mode may be required for a polling application but the SAADC driver is not required.