showlcd.c

单片机的主控端

#include <regx52.h>
#include "sys.h"
#include "ShowLcd.h"

data UCHAR show[6] = {0,0,0,0,0,0};//显示缓冲区

float code GAINU[20]={0.0648,0.1041,0.0878,0.0654,0.0795,0.0939,0.0862,0.0776,1,1,1,1,1,1,1,1,1,1,1,1} ;//板上电压部分增益
float code GAINUb[20]={-2.0573,-2.6596,-5.4535,10.8055,-2.7239,-8.7887,-2.5181,-2.55,1,1,1,1,1,1,1,1,1,1,1,1} ;
float code GAINI[20]={1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1} ;//板上电流部分增益

extern UCHAR UIData[8];

float Ufloat(float tmp)
{
	if(tmp<0)
	{
		return (-tmp);	
	}
	else 
	{
		return tmp;
	}
}

void showFloat(UCHAR PP)
{
    float result;
    //UINT showtmp=0;
/*
   result = ( (int)((UIData[0]<<8)|UIData[1]) )/(UIData[2]&0xFF)*GAINI[PP
   ];	//UIData[2]&0xFF保持放大器增益不变，为-1,-2，-10
	if(UIData==10)
	{
		result = -result;
	}
	if(result <=0)
	{
		show[0]='-';	
	}
	else
	{
		show[0]='+';
	}
	result = Ufloat(result);
//	showtmp =(UINT)result;
    if(result<1)           //0.???
    {
        show[1] = '0';
        show[2] = '.';
        result *= 10;
        show[3] = '0'+((UCHAR)result % 10);
        result *= 10;
        show[4] = '0'+((UCHAR)result % 10);
        result *= 10;
        show[5] = '0'+((UCHAR)result % 10);
    }   //if <1
    else if(result < 10)     // ?.???
        {
            show[1] = '0'+((UCHAR)result % 10);
            show[2] = '.';
            result *= 10;
            show[3] = '0'+((UCHAR)result % 10);
            result *= 10;
            show[4] = '0'+((UCHAR)result % 10);
            result *= 10;
            show[5] = '0'+((UCHAR)result % 10);
        }   // if 1<= <10
        else if(result < 100)    // ??.??
            {
                show[2] = '0'+((UCHAR)result % 10);
                result *= 0.1;   //?.???
                show[1] = '0'+((UCHAR)result % 10);
                show[3] = '.';
                result *= 100;  //???.?
                show[4] = '0'+((UCHAR)result % 10);
                result *= 10;   //????.
                show[5] = '0'+((UCHAR)result % 10);
            }   //if 10<= <100
            else if(result < 1000)   //???.?
                {
                    show[3] = '0'+((UCHAR)result % 10);
                    show[4] = '.';
                    result *= 0.1;  //??.??
                    show[2] = '0'+((UCHAR)result % 10);
                    result *= 0.1;  //?.???
                    show[1] = '0'+((UCHAR)result % 10);
                    result *= 1000;
                    show[5] = '0'+((UCHAR)result % 10);
                }   // if 100<= <1000
                else if(result < 10000)  //????.
                    {
                        show[5] = '.';
                        show[4] = '0'+((UCHAR)result % 10);
                        result *= 0.1;  //???.?
                        show[3] = '0'+((UCHAR)result % 10);
                        result *= 0.1;  //??.??
                        show[2] = '0'+((UCHAR)result % 10);
                        result *= 0.1;  //?.???
                        show[1] = '0'+((UCHAR)result % 10);
                    }
    LCDString(19, show, 6); //show I
    LCDChar(18, 'I');
 */   


    result = ( (int)((UIData[3]<<8)|UIData[4]) )/(UIData[5]&0xFF)*GAINU[PP]-GAINU[PP];	//(UIData[5]&0x0F)无必要,保险起见
	if(UIData==10)
	{
		result = -result;
	}
	if(result <=0)
	{
		show[0]='-';	
	}
	else
	{
		show[0]='+';
	}
	result = Ufloat(result);
    if((result)<1)           //0.???
    {
        show[1] = '0';
        show[2] = '.';
        result *= 10;
        show[3] = '0'+((UCHAR)result % 10);
        result *= 10;
        show[4] = '0'+((UCHAR)result % 10);
        result *= 10;
        show[5] = '0'+((UCHAR)result % 10);
    }   //if <1
    else if(result < 10)     // ?.???
        {
            show[1] = '0'+((UCHAR)result % 10);
            show[2] = '.';
            result *= 10;
            show[3] = '0'+((UCHAR)result % 10);
            result *= 10;
            show[4] = '0'+((UCHAR)result % 10);
            result *= 10;
            show[5] = '0'+((UCHAR)result % 10);
        }   // if 1<= <10
        else if(result < 100)    // ??.??
            {
                show[2] = '0'+((UCHAR)result % 10);
                result *= 0.1;   //?.???
                show[1] = '0'+((UCHAR)result % 10);
                show[3] = '.';
                result *= 100;  //???.?
                show[4] = '0'+((UCHAR)result % 10);
                result *= 10;   //????.
                show[5] = '0'+((UCHAR)result % 10);
            }   //if 10<= <100
            else if(result < 1000)   //???.?
                {
                    show[3] = '0'+((UCHAR)result % 10);
                    show[4] = '.';
                    result *= 0.1;  //??.??
                    show[2] = '0'+((UCHAR)result % 10);
                    result *= 0.1;  //?.???
                    show[1] = '0'+((UCHAR)result % 10);
                    result *= 1000;
                    show[5] = '0'+((UCHAR)result % 10);
                }   // if 100<= <1000
                else if(result < 10000)  //????.
                    {
                        show[5] = '.';
                        show[4] = '0'+((UCHAR)result % 10);
                        result *= 0.1;  //???.?
                        show[3] = '0'+((UCHAR)result % 10);
                        result *= 0.1;  //??.??
                        show[2] = '0'+((UCHAR)result % 10);
                        result *= 0.1;  //?.???
                        show[1] = '0'+((UCHAR)result % 10);
                    }
    LCDString(21, show, 6); //show U
    LCDChar(18, 'E');
	LCDChar(19, ':');
	LCDChar(20, ' ');
	LCDChar(27, ' ');
	LCDChar(28, 'k');
	LCDChar(29, 'V');
	LCDChar(30, '/');
	LCDChar(31, 'm');
	
}