   lastStatus = millis();
 }
 
-// subroutine to display the frequency...
+// Display the frequency...
 void display_frequency(double frequency) {  
   int currentCursor;
   byte currentDigit;

  }
}

// subroutine to update status line
void update_status() {
  clear_line(1);
  lcd.setCursor(0,1);

  lcd.print("0 MHz");
}  

// Generate a positive pulse on 'pin'...
void pulseHigh(int pin) {
  digitalWrite(pin, HIGH); 
  digitalWrite(pin, LOW); 
}

// Calculate and send frequency code to DDS Module...
void send_frequency(double frequency) {
  int32_t freq = (frequency) * 4294967295/124997797;
  for (int b=0; b<4; b++, freq>>=8) {
