text: /*
   * delay.h
   * system delays
   */
  
  #pragma once
  
  #include "_STM32F446.h"
  #include "systick.h"
  
  //System_DelayMs: delay for given time
  void System_DelayMs(unsigned theDelay);
  
  //System_DelayUs: delay for given time
  //for delay longer than 1000us call System_DelayMs
  void System_DelayUs(unsigned theDelay);
  