HX711称重模块程序

去年省比赛准备51模块程序之一.

  

 

 

以上部分截自于厂家数据手册。

#include <STC12C5A60S2.H>
#include"lcd12864.h"
unsigned long HX711_Buffer = 0;
unsigned long Weight_Maopi = 0;
unsigned long Weight_Maopi_0 = 0;
long Weight_Shiwu = 0;
long wsbeep=200;    //系统设定值为200g
uint chazhi=20;     //重量正常值在180-220之间
sbit HX711_SCK=P1^0;
sbit HX711_DOUT=P1^1;
#define GapValue 4500		//灵敏度
void Delay__hx711_us()
{
	_nop_();
	_nop_();
}

unsigned long HX711_Read(void)	//增益128
{
	unsigned long count; 
	unsigned char i; 
  	HX711_DOUT=1; 
		Delay__hx711_us();
  	HX711_SCK=0; 
  	count=0; 
  	while(HX711_DOUT); 
  	for(i=0;i<24;i++)				
	{ 
	  	HX711_SCK=1; 
	  	count=count<<1; 
			HX711_SCK=0; 
	  	if(HX711_DOUT)
			count++; 
	} 
 	HX711_SCK=1; 
    count=count^0x800000;//第25个脉冲下降沿来时，转换数据
	Delay__hx711_us();
	HX711_SCK=0;  
	return(count);
}
void Display_Weight()
{
	wcode(0x80);
//	lcd_wdat(Weight_Shiwu/10000);
	wrnum(Weight_Shiwu%10000/1000);
	wdata('.');
  wrnum(Weight_Shiwu%1000/100);
  wrnum(Weight_Shiwu%100/10);
  wrnum(Weight_Shiwu%10);
	wdata('k');
	wdata('g');
}

void Get_Weight()
{
	HX711_Buffer = HX711_Read();
	Weight_Shiwu=HX711_Buffer;
//	Weight_Shiwu = Weight_Shiwu - Weight_Maopi;		//获取净重															
		if(Weight_Shiwu > 0)			
	{	
		Weight_Shiwu = (unsigned int)((float)Weight_Shiwu*10/GapValue)-8530; 	//计算实物的实际重量
									
//																		
//		if(Weight_Shiwu > 3000)		//超重报警
//		{
//			Flag_ERROR = 1;	
//		}
//		else
//		{
//			Flag_ERROR = 0;
//		}
//	}
//	else
//	{
//		Weight_Shiwu = 0;
//	//	Flag_ERROR = 1;				//负重报警
//	}
	}
	delay(5);
		Display_Weight();
	
}

//****************************************************
//获取毛皮重量
//****************************************************
//void Get_Maopi()
//{
//	unsigned char clear;
//mm:	Weight_Maopi_0 = HX711_Read();
//	for(clear=0;clear<10;clear++)
//	{
//		Buzzer=1;
//		LED=0;
//		Delay_ms(100);
//		LED=1;
//		Delay_ms(100);	
//	}
//	Weight_Maopi = HX711_Read();
//	if(Weight_Maopi/GapValue!=Weight_Maopi_0/GapValue)
//	goto mm;
//	Buzzer=0;
//	Delay_ms(500);
//	Buzzer=1;
//}



void main()
{
	initlcd();
	while(1)
	{
			Get_Weight();
	}
}