shuiweichuanganqi.rar_水位传感器

//////////////////////////////////////////////////////// // MODEL:watherhighcheck // // MCU:AT89C2051 // // Ctystal:12MHz // // Design by:huafeng // // Date:2007.05.19 // //////////////////////////////////////////////////////// #include "reg51.h" #define uchar unsigned char #define uint unsigned int #define SHOW1 P0 //定义数据输出端口 #define SHOW2 P2 //定义数据输出端口 #define DATAIN P1 //定义数据输出端口 uchar g_ucDataInStatus; uchar g_ucShowStatus = 0; uchar g_ucSoundStatus = 0; uchar g_ucSoundStatus2 = 0; //定义时分秒变量 unsigned char i = 0; //定时器增量值，用以记数 unsigned char j = 0; //定时器跟踪变量，用以记数还原 uchar code disout1[8]= {0X46, 0X05, 0X05, 0X05, 0X03, 0X03, 0X03, 0X46}; //输出口1编码 uchar code disout2[8]= {0X01, 0X09, 0X31, 0X11, 0X21, 0X00, 0x01, 0X00}; //输出口2段 //--------------------延时子函数------------------------- delay() // { uchar d2; for(d2 = 0; d2 < 0xff; d2++); } //-------------------数据输出---------------------------- ShowOut() { SHOW1 = disout1[g_ucDataInStatus]; SHOW2 = disout2[g_ucDataInStatus]; } //-------------------关闭实时显示函数------------------------- void CloseLink() { g_ucShowStatus = 1; //关闭实时显示量 TR0 = 1; //启动计时器0 } //-------------------打开实时显示函数------------------------- void OpenLink() { g_ucShowStatus = 0; //打开实时显示量 TR0 = 0; //关闭计时器0 } //-------------------声音状态恢复函数------------------------- void SoundBack() { g_ucSoundStatus = 0; g_ucSoundStatus2 = 0; } //-------------------获得输入信号------------------------- void GetSuatusNo() { if( (DATAIN & 0x04) == 0x04 ) { if(g_ucSoundStatus2 == 0) {CloseLink(); g_ucDataInStatus = 0;} else { g_ucDataInStatus = 0;} g_ucSoundStatus = 0; goto p; } if( (DATAIN & 0x08) == 0x08 ) { g_ucDataInStatus = 1; SoundBack(); goto p; } if( (DATAIN & 0x10) == 0x10 ) { g_ucDataInStatus = 2; SoundBack(); goto p; } if( (DATAIN & 0x20) == 0x20 ) { g_ucDataInStatus = 3; SoundBack(); goto p; } if( (DATAIN & 0x40) == 0x40 ) { g_ucDataInStatus = 4; SoundBack(); goto p; } if(g_ucSoundStatus == 0) { g_ucDataInStatus = 5; } else { g_ucDataInStatus = 6; } g_ucSoundStatus2 = 0; p: delay(); } //------------------------定时器------------------------- void waterhign_check() interrupt 1 //time0_int waterhign_check { TH0 = 0x3c; //定时器0初值设置 TL0 = 0xb0; // //GetSuatusNo(); // delay(); //TR0 = 1; i++; if(i==10) { i = 0; j++; if(g_ucDataInStatus == 0) {g_ucDataInStatus = 7;} else g_ucDataInStatus = 0; } if(j == 6) { j = 0; OpenLink(); g_ucSoundStatus2 = 1; } } static void soundoff(void) interrupt 0 { if( g_ucSoundStatus == 0) { g_ucSoundStatus = 1; } } //---------------------主程序函数------------------------- void main(void) { TMOD = 0X01; //设定时器工作在1模式 TH0 = 0x3c; //定时器0初值设置 TL0 = 0xb0; // EA = 0; EX0 = 1; PX0 = 1; EA = 1; //开总中断 ET0 = 1; //开定时0中断 //TR0 = 1; //启动计时器0 while(1) //无限循环 { if(g_ucShowStatus == 0) { GetSuatusNo() ; } ShowOut(); } }