pressure.c

此为本人今期一个项目的部分C51源程序

#include <STC12C5412.H>
#include <port.h>                        //mcu端口的使用定义
#include <intrins.h>
#include <stc12c5412ad_adc.h>

#define K 1                     //压力值放大系数
#define Pressure_Max 40         //水压力保护阈值

 struct Pressure{
    unsigned int  Pressure;         //扩大100倍的水压值
    unsigned char Pressure_Mode;        //设定的水压级别
    unsigned int  Pressure_control_time_count;    //压强调整超过一定的次数后
                                                  //仍不行，则报警
    unsigned char xx;                  //当前角度
    unsigned char yy;                  //目标角度
 };
 
//?????结构如何指定存储器类型
 struct Pressure  My_Pressure={0,3,0,53,53};
  
//电动阀控制表格
 unsigned char code Tab1[8]={0,52,51,53,55,56,57,61};  //从小开大
 unsigned char code Tab2[8]={0,37,38,39,41,42,44,48};  //从大关小

  



  
/*---------------------------------------------------------------------------------------
                                    长延时程序
输入参数为1，延时0.1S
          2，延时0.9S 
          3, 延时1.8S
          4, 延时2.6S
          11,延时8.6S                                   
-----------------------------------------------------------------------------------------*/
static void Delay_100ms(unsigned char x)
{
  unsigned int count=7700;
  while(x--){
      while(count--){
      _nop_();
      }
  }
 
}
/*-----------------------------------------------------------------------------------------
                                   短延时程序
--------------------------------------------------------------------------------------------*/
void Delay_40ms(unsigned char x)
{
    unsigned int count=2000;
    while(x--){
        while(count--){
            _nop_();
        }
    }
}
 
/*----------------------------------------------------------------------------------------
                                     水压检测
说明：返回值扩大了100倍                                    
-----------------------------------------------------------------------------------------*/
void Get_Pressure(void)  
{
  //static unsigned int  Sum_Pressure=0;  //扩大100倍使用
  //static unsigned char Sum_Count=0;
  //unsigned int         Pressure;        //压强变量  扩大100倍使用
  unsigned int  My_ADC_Result;
 
  My_ADC_Result=stc12c512ad(4);;       //p1.4为水压检测端口
  My_Pressure.Pressure=(unsigned int)(100*((5.02/1024)*My_ADC_Result)); //3.00为单片机供电电压  8位转换精度
  //Sum_Pressure=Sum_Pressure+Pressure;
  //Sum_Count++;
  
  //if(Sum_Count==3){                       //计算3次平均值
  //    Sum_Count=0;
  //    Jun_Pressure=(unsigned int)(Sum_Pressure/3/10);        //扩大10倍的值
  //    Sum_Pressure=0;
  //}
 // return(Pressure);
  

}
/*--------------------------------------------------------------------------------------------------
                                       水压控制程序                                   
-----------------------------------------------------------------------------------------------------*/
void Pressure_Control(void)
{
    if(My_Pressure.xx<My_Pressure.yy){
        Motor_TurnDown=1;
        Motor_TurnUp=0;
        My_Pressure.xx++;
    }
    else if(My_Pressure.xx>My_Pressure.yy){
        Motor_TurnUp=1;
        Motor_TurnDown=0;
        My_Pressure.xx--;
    }
    else{
        Motor_TurnUp=1;
        Motor_TurnDown=1;
    } 

}
/*-------------------------------------------------------------------------------------------
                              电动阀门控制参数更新
----------------------------------------------------------------------------------------------*/
void Motor_Parament_UpData(void)
{
    
}

/*-------------------------------------------------------------------------------------------
                             电动阀门开机位置初始化程序
功能：先将电动阀门关死，然后控制打开一个合适的角度                           
---------------------------------------------------------------------------------------------*/
void Motor_Position_Init(void)
{
 Motor_TurnUp=1;                            
 Motor_TurnDown =0;                         //电动阀门初始关死
 Delay_100ms(11);                           
 Motor_TurnDown=1;
 
 Motor_TurnUp=0;
 Delay_100ms(2);//延时0.9s
 Delay_100ms(1);//延时0.1s
 Delay_100ms(1);//延时0.1s
 Delay_100ms(1);//延时0.1s
 
// Delay_40ms(1);
 
 
 Motor_TurnUp=1;                            //经过合适延时，电动阀门转到合适位置后，停转
 
 My_Pressure.xx=53;                                     //初始化电动阀门已转过的角度，计算的此数值
 
 Delay_100ms(4);                            //延时3s,让整个水管中充满较大压力
 magnet_valve3=0;                           //突然打开电磁阀门，靠水压排除管中空气 


}
/*------------------------------------------------------------------------------------------
                             水压突燃增大保护控制程序
-------------------------------------------------------------------------------------------*/
/*void Over_Pressure_Protecting(void)
{
  if(My_Pressure.Jun_Pressure>=Pressure_Max){
      magnet_valve3=1;    //出水电磁阀关
    
      magnet_valve1=0;    //排水电磁阀打开
  } 

}*/