Code

Copy-paste the following code to your user application:

ac_chan_trigger_single_shot(&ac_instance, AC_COMPARATOR_CHANNEL);

uint8_t last_comparison = AC_CHAN_STATUS_UNKNOWN;
port_pin_set_output_level(LED_0_PIN, true);
while (true) {
    if (callback_status == true) {
        do
        {
            last_comparison = ac_chan_get_status(&ac_instance,
                    AC_COMPARATOR_CHANNEL);
        } while (last_comparison & AC_CHAN_STATUS_UNKNOWN);
        port_pin_set_output_level(LED_0_PIN,
                (last_comparison & AC_CHAN_STATUS_NEG_ABOVE_POS));
        callback_status = false;
        ac_chan_trigger_single_shot(&ac_instance, AC_COMPARATOR_CHANNEL);
    }
}