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51单片机负载平衡监控系统仿真电路原理图
51单片机负载平衡监控系统源程序如下：
- #include <AT89X52.h>
- unsigned char code SEGtable[]=
- {
- 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,0x00
- };
- sbit sw7 = P0 ^ 7;
- sbit sw6 = P0 ^ 6;
- sbit sw5 = P0 ^ 5;
- sbit sw4 = P0 ^ 4;
- sbit sw3 = P0 ^ 3;
- sbit sw2 = P0 ^ 2;
- sbit sw1 = P0 ^ 1;
- sbit sw0 = P0 ^ 0;
- sbit FMQ = P1 ^ 7;
- bit alarmflg = 0;
- unsigned RxByte = 0x00;
- unsigned char counter = 0;
- unsigned char Scounter,Lcounter; //分别存放自己的水位状态和远方的水位状态
- unsigned char FMcounter = 0x02; //报警状态参数
- void DelayFM(unsigned int x)
- {
- unsigned char t;
- while(x--)
- {
- for(t=0;t<120;t++);
- }
- }
- //蜂鸣器驱动函数，参数为发声声调
- void FM(unsigned char x)
- {
- unsigned char i;
- for(i=0;i<100;i++)
- {
- FMQ = ~FMQ;
- DelayFM(x);
- }
- FMQ = 0;
- }
- void Delayms(unsigned int MS) //延时ms函数
- {
- unsigned int i,j;
- for( i=0;i<MS;i++)
- for(j=0;j<1141;j++);
- }
- void InitUART(void)
- {
- TMOD = 0x20; //9600bps
- SCON = 0x50;
- TH1 = 0xFD;
- TL1 = TH1;
- PCON = 0x00;
- EA = 1;
- ES = 1;
- TR1 = 1;
- }
- void Send(unsigned char x)
- {
- SBUF = x;
- while(TI == 0);
- TI = 0;
- }
- void Serial(void) interrupt 4 using 1
- {
- unsigned char RxByte;
- if(RI == 1)
- {
- RxByte = SBUF;
- RI = 0;
- P2 = RxByte;
- switch(RxByte)
- {
- case 0x00: Lcounter = 0;break;
- case 0xf9: Lcounter = 1;break;
- case 0xa4: Lcounter = 2;break;
- case 0xb0: Lcounter = 3;break;
- case 0x99: Lcounter = 4;break;
- case 0x92: Lcounter = 5;break;
- case 0x82: Lcounter = 6;break;
- case 0xF8: Lcounter = 7;break;
- case 0x80: Lcounter = 8;break;
- default:{};
- }
- if(Scounter > Lcounter)
- {
- if((Scounter - Lcounter) > 2) //如果超过2%
- {
- FMcounter = Scounter - Lcounter;
- alarmflg = 1; //报警标志位
- }
- else
- {
- alarmflg = 0;
- }
- }
- else
- {
- alarmflg = 0; //清除
- }
- }
- }
- main(void)
- {
- InitUART();
- while(1)
- {
- Delayms(100);
- P0 = 0xFF;
- counter = 0;
- counter = counter + (unsigned char)sw7;
- counter = counter + (unsigned char)sw6;
- counter = counter + (unsigned char)sw5;
- counter = counter + (unsigned char)sw4;
- counter = counter + (unsigned char)sw3;
- counter = counter + (unsigned char)sw2;
- counter = counter + (unsigned char)sw1;
- counter = counter + (unsigned char)sw0; //计算当前的负载
- Scounter = counter;
- Send(SEGtable[counter]);
- if(alarmflg == 1)
- {
- FM(FMcounter);
- }
- }
- }
51单片机负载平衡监控系统仿真工程文件及所有资料下载：http://www.51hei.com/bbs/dpj-54940-1.html
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