MSP430-HX711.rar_HX711 MSP430_MSP430 HX711_hx711_hx711 msp430

#include <reg52.h> #include <intrins.h> #include <stdio.h> sbit ADDO=P2^0; sbit ADSK=P2^1; sbit led1=P2^4; sbit led2=P2^5; sbit led3=P2^6; sbit led4=P2^7; //unsigned char key; unsigned char code disp_code[] = { //显示码数组 0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90, 0x88, 0x83, 0xc6, 0xa1, 0x86, 0x8e, 0xbf }; unsigned char code seg[]={0x7f,0xbf,0xdf,0xef};//分别对应相应的数码管点亮 /********************************************************** 延时子函数 **********************************************************/ void delayms(unsigned int ms) { unsigned char t; while (ms--) { for (t = 0; t < 114; t++) ; } } /********************************************************** x*0.14MS 延时子函数 **********************************************************/ void delayus(unsigned char x) { unsigned char i; while (x--) { for (i = 0; i < 14; i++) { ; } } } /********************************************************** 读711 AD数据子程序 **********************************************************/ unsigned long ReadCount(void) { unsigned long Count; unsigned int ADval; unsigned char i; ADDO=1; ADSK=0; Count=0; while(ADDO); for(i=0;i<24;i++) //读24个bit { ADSK=1; Count=Count<<1; ADSK=0; if(ADDO)Count++; } ADSK=1; //发送第25个脉冲，表示下次转换使用A通道128db // Count=Count^0x800000; ; ADSK=0; /* if((Count & 0x800000) == 0x800000) { Count = ~(Count - 1); } */ // ADval = (int)(Count >> 8);//取高十六位有效值 ADval = (int)(Count>>8); // ADDO=1; return(ADval); } /********************************************************** AD采样处理——算术平均数字滤波 **********************************************************/ unsigned long Sampling(void) { unsigned int Sam[12],tmpmax,tmpmin,sum=0,Average; unsigned char i; for(i=0;i<12;i++) { Sam[i]=ReadCount(); if(i==0) { tmpmax=Sam[0]; tmpmin=Sam[0]; } if(i>0) { if(Sam[i]>tmpmax)tmpmax=Sam[i]; if(Sam[i]<tmpmin)tmpmin=Sam[i]; } } for(i=0;i<12;i++) { if(!(Sam[i]==tmpmax||Sam[i]==tmpmin)) { sum=sum+Sam[i]; } } Average=sum/10; return(Average); } /********************************************************** 重量值数码管显示子程序 **********************************************************/ void displayheight(void) { unsigned int Lheight; float Tempheight; unsigned char i,j,height[2],discode[4]; // while(1) { Lheight = ReadCount()-1500; if(Lheight<0)Lheight=0; Tempheight=(float)(Lheight/1.4); Lheight=(int)(Tempheight); /* discode[0]=Lheight%16; discode[1]=(Lheight%256)/16; discode[2]=(Lheight%4096)/256; discode[3]=(Lheight%65536)/4096; */ // tmp10=discode[3]*4096+discode[2]*256+discode[1]*16+discode[0]; discode[0]=Lheight%10; discode[1]=(Lheight%100)/10; discode[2]=(Lheight%1000)/100; discode[3]=(Lheight%10000)/1000; for(j=0;j<250;j++) { for(i=0;i<4;i++) { if(i==0){led1=0;led2=1;led3=1;led4=1;} if(i==1){led1=1;led2=0;led3=1;led4=1;} if(i==2){led1=1;led2=1;led3=0;led4=1;} if(i==3){led1=1;led2=1;led3=1;led4=0;} P0 = disp_code[discode[i]]; delayms(2); } } led1=1;led2=1;led3=1;led4=1; Lheight=0; } } /********************************************************** 主函数 **********************************************************/ void main(void) { // unsigned long Lheight; unsigned char i; P2 = 0x0f; //数码管初始显示"-" P1 = 0xff; P0 = 0xbf; while (1) { displayheight(); /* for(i=0;i<4;i++) { P2 = seg[i]; P1 = disp_code[i]; delayms(2); }*/ } } /*********************************************************/