攀藤G5传感器用1602显示各个变量

#include <reg52.h> #include <intrins.h> unsigned char tmp; sbit PPM = P2^0; #define uchar unsigned char #define uint unsigned int uchar code table[]="PM2.5 TMEP HRT "; uchar buff[30]; uint pm1 = 0; uint pm2 = 0; uint pm10 = 0; uchar Uart_Buf; uchar Rec_Addr=0; uchar Rec_Uart=0; uchar Recive_Buf[30]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; bit rec_ok_flag=0; sbit rs=P2^3; sbit rw=P2^4; sbit en=P2^5; void rs232_init() { TMOD=0x20; TH1=0xfd; TL1=0xfd; IT0=0; //1负跳变触发 0低电平触发 EX0=1; //允许外部中断0 TR1=1; SM0=0; SM1=1; REN=1; //先设定号工作方式，在打开允许接收 EA=1; ES=1; } void UART1_interrupt (void) interrupt 4 { EA=0; if(TI) {TI=0;}; if(RI) { RI=0; // Uart_Buf=SBUF; // switch (Rec_Uart) { case 0: // if(Uart_Buf==0x42) Rec_Uart=1; // else Rec_Uart=0; break; case 1: // if(Uart_Buf==0x4d) Rec_Uart=2; // else Rec_Uart=0; break; case 2: { Recive_Buf[Rec_Addr]=Uart_Buf; // Rec_Addr++; if(Rec_Addr>=22) { Rec_Uart=0; // rec_ok_flag=1; // Rec_Addr=0; } } break; }//end switch }//end RI EA=1; } void getdata(void)//转换数据 { pm1= Recive_Buf[2]<<8; pm1|=Recive_Buf[3]; pm2= Recive_Buf[4]<<8; pm2|=Recive_Buf[5]; pm10= Recive_Buf[6]<<8; pm10|=Recive_Buf[7]; } void delay(uint z) //延时 { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void write1602_com(uint com) //写1602地址 { rs=0; rw=0; P0=com; delay(5); en=1; delay(5); en=0; } void write1602_date(uchar date) //写1602数据 { rs=1; rw=0; P0=date; delay(5); en=1; delay(5); en=0; } void init1602(void) //初始化1602 { write1602_com(0x38); write1602_com(0x0c); write1602_com(0x06); write1602_com(0x01); } void display(uint add,temp) //显示xxx { write1602_com(add); // write1602_date(temp/1000+0x30); // delay(1); write1602_date(temp%1000/100+0x30); delay(1); write1602_date(temp%100/10+0x30); delay(1); write1602_date(temp%10+0x30); delay(1); } void display_head() //表头 { uchar num; write1602_com(0x80); //?úμúò?DD?aí·??ê? for(num=0;num<16;num++) { write1602_date(table[num]); delay(5); } } void displayall(void) //显示数据 { display(0xc0,pm2); display(0xc0+6,pm1); display(0xc0+12,pm10); } void clear(void)//清空屏幕 { uchar num; write1602_com(0x80); //第一行 for(num=0;num<16;num++) { write1602_date(0x10); delay(5); } write1602_com(0xc0); //第二行 for(num=0;num<16;num++) { write1602_date(0x10); delay(5); } } void main(void) //主函数 { init1602(); //初始化1602 rs232_init(); //初始化UART clear(); //清屏 displayall(); //数据 display_head(); //表头 ES=1; //内部中断 EA=1; //总中断使能 while(1) { if(rec_ok_flag==1) //得到UART标记位 { getdata(); //转换数据 displayall(); //显示数据 rec_ok_flag=0; //清除标记位 } } }