Complete

LPR Signal Validation:

// Comprehensive test of LPR signal functionality
bool comprehensive_lpr_test() {
    bool test_result = true;
 
    // Test forced high state
    configure_lpr_override(LowPowerRequestOutputOverride::FORCED_HIGH);
    delay_ms(10);
 
    if (!verify_pin_voltage_high(LPR_PIN)) {
        log_error("LPR pin not driven to high level");
        test_result = false;
    }
 
    if (!verify_external_circuit_high_response()) {
        log_error("External circuit does not respond to high LPR signal");
        test_result = false;
    }
 
    // Test forced low state
    configure_lpr_override(LowPowerRequestOutputOverride::FORCED_LOW);
    delay_ms(10);
 
    if (!verify_pin_voltage_low(LPR_PIN)) {
        log_error("LPR pin not driven to low level");
        test_result = false;
    }
 
    // Test automatic mode restoration
    configure_lpr_override(LowPowerRequestOutputOverride::NOT_FORCED);
 
    if (!verify_automatic_lpr_operation()) {
        log_error("LPR automatic mode not functioning");
        test_result = false;
    }
 
    return test_result;
}