text: /**
   *!
   * \file        b_util_delay.c
   * \version     v0.0.1
   * \date        2019/06/05
   * \author      Bean(notrynohigh@outlook.com)
   *******************************************************************************
   * @attention
   * 
   * Copyright (c) 2019 Bean
   * 
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   * 
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   *******************************************************************************
   */
     
  /*Includes ----------------------------------------------*/
  #include "b_util_delay.h"   
  
  /** 
   * \addtogroup B_UTILS
   * \{
   */
  
  /** 
   * \addtogroup DELAY
   * \{
   */
  
  /** 
   * \defgroup DELAY_Private_TypesDefinitions
   * \{
   */
     
  /**
   * \}
   */
     
  /** 
   * \defgroup DELAY_Private_Defines
   * \{
   */
     
  /**
   * \}
   */
     
  /** 
   * \defgroup DELAY_Private_Macros
   * \{
   */
     
  /**
   * \}
   */
     
  /** 
   * \defgroup DELAY_Private_Variables
   * \{
   */
  extern volatile uint32_t bSysTick;
  
  /**
   * \}
   */
     
  /** 
   * \defgroup DELAY_Private_FunctionPrototypes
   * \{
   */
     
  /**
   * \}
   */
     
  /** 
   * \defgroup DELAY_Private_Functions
   * \{
   */
     
  /**
   * \}
   */
     
  /** 
   * \addtogroup DELAY_Exported_Functions
   * \{
   */
  
  
  void bUtilDelayMS(uint32_t xms)
  {
    uint32_t tickstart = bSysTick;
    uint32_t wait = xms * _TICK_FRQ_HZ / 1000;
  
    while ((bSysTick - tickstart) < wait)
    {
      ;
    }
  }
  
  void bUtilDelayUS(uint32_t xus)
  {
      while(xus--)
      {
          __nop();
      }
  }
  
  uint32_t bUtilGetTick()
  {
      return bSysTick;
  }
  
  /**
   * \}
   */
  
  /**
   * \}
   */
  
  
  /**
   * \}
   */
  
  /************************ Copyright (c) 2019 Bean *****END OF FILE****/
  
  
  