Polarity

Testing and Validation:

// Test both polarity configurations to determine correct setting
bool determine_correct_polarity() {
    LowPowerRequestConfig test_config = {
        .enable = true,
        .override = LowPowerRequestOutputOverride::NOT_FORCED
    };
 
    // Test active-low polarity
    test_config.polarity = LowPowerRequestPinPolarity::LOW_TRUE_POLARITY;
    configure_low_power_request(&test_config);
 
    if (test_external_circuit_response_to_low_active()) {
        log_info("External circuit responds to active-low LPR signaling");
        return true;  // Keep active-low configuration
    }
 
    // Test active-high polarity
    test_config.polarity = LowPowerRequestPinPolarity::HIGH_TRUE_POLARITY;
    configure_low_power_request(&test_config);
 
    if (test_external_circuit_response_to_high_active()) {
        log_info("External circuit responds to active-high LPR signaling");
        return true;  // Keep active-high configuration
    }
 
    log_error("External circuit does not respond to either polarity");
    return false;  // Configuration error
}