proteus仿真LCD1602只亮不显示附单片机程序麻烦各位看看是什么问题? -

#include "1602.h"
#include "delay.h"
xdata LCD_Type LCD; //LCD设备
static void LCD_CheckBusy(void) //检测LCD状态，看它是不是还在忙呢
{
do
{
LCD_EN=0;
LCD_RS=0;
LCD_RW=1;
LCDIO=0xff;
LCD_EN=1;
}
while(LCD_BUSY==1);
LCD_EN=LOW;
}
static void LCD_SendCommand(unsigned char command)
{
LCD_CheckBusy();
LCD_RS=LOW;
LCD_RW=LOW;
LCD_EN=HIGH;
LCDIO=command;
LCD_EN=LOW;
}
static void LCD_SendData(unsigned char dat)
{
LCD_CheckBusy();
LCD_RS=HIGH;
LCD_RW=LOW;
LCD_EN=HIGH;
LCDIO=dat;
LCD_EN=LOW;
}
/*---------------------光标设置函数-------------------------*/
static void LCD_Pos(unsigned char pos) //写入的是实际的地址
{
if(pos>31) //光标地址0-31 共32个
return;
/*----------------------------------------------------------*/
if(pos<16) //第一行
{
LCD_SendCommand(0x80+pos);
}
else //第二行
{
LCD_SendCommand(0xC0+pos-16);
}
}
//add 0-31对应两行
//void LCD_DisPlayChar(unsigned char add,unsigned char ch)
//{
//LCD.RefFlag = 0;
//LCD.Buf[add]=ch;
//LCD.RefFlag = 1;
//}
void LCD_DisplayString(unsigned char add,unsigned char *str)
{
unsigned char i;
LCD.RefFlag = 0;
i = 0;
while(*str)
{
LCD.Buf[add+i]=*str;
str++;
i++;
}
LCD.RefFlag = 1;
}
void LCD_ScreenClear(void)
{
unsigned char i = 0;
LCD.RefFlag = 0;
for(i=0;i<32;i++)
{
LCD.Buf[i]=' ';
}
LCD.RefFlag = 1;
}
void LCD_Init(void)
{
LCD_SendCommand(0x38);
LCD_SendCommand(0x38);
LCD_SendCommand(0x38);
LCD_SendCommand(0x06);
LCD_SendCommand(0x0c);
LCD_SendCommand(0x01);
LCD.BlinkEN = 0;
LCD.BlinkAdd = 0;
LCD.BlinkLen = 1;
LCD.BlinkCon = 0;
LCD_ScreenClear();
}
void LCD_Refresh(void)
{
unsigned char i=0;
/*------------------闪烁设置---------------------------*/
if(LCD.BlinkEN) //如果闪烁开关打开
{
LCD.BlinkCon++;
if(LCD.BlinkCon==1)
{
LCD_Pos(LCD.BlinkAdd); //设置地址
for(i=0;i<LCD.BlinkLen;i++)
{
if(LCD.BlinkAdd+i==16)
LCD_Pos(16);
LCD_SendData(0x20); //隐藏显示
}
}
else if(LCD.BlinkCon==10) //开启显示
{
LCD_Pos(LCD.BlinkAdd);
for(i=0;i<LCD.BlinkLen;i++)
{
if(LCD.BlinkAdd+i==16)
LCD_Pos(16);
LCD_SendData(LCD.Buf[LCD.BlinkAdd+i]); //显示缓存直接写入
}
}
else if(LCD.BlinkCon>=20)
{
LCD.BlinkCon = 0;
LCD.RefFlag = 1;
}
}
/*-----------------LCD刷新显示----------------------------*/
if(LCD.RefFlag ==1) //有待刷新
{
LCD_Pos(0);
for(i=0;i<32;i++) //从闪烁开始的地址就不要写数据了
{
/*-------------------换行------------------------------*/
if(i==16)
LCD_Pos(16);
/*-------------------闪烁功能打开并且到了开始闪烁的地址----------------------------------*/
if((LCD.BlinkEN)&&(i==LCD.BlinkAdd)) //跳过LCD.BlinkLen个显示地址
{
do
{
i++;
}
while(i<(LCD.BlinkAdd+LCD.BlinkLen)); // 0 1
LCD_Pos(LCD.BlinkAdd+LCD.BlinkLen+1);
}
else //正常模式写入
{
LCD_SendData(LCD.Buf[i]);
}
}
LCD.RefFlag =0;
}
}
//显示地址Add：0-31 *time //时分秒
void LCD_DisplayTime(unsigned char add,unsigned char *time)
{
LCD.RefFlag =0;
/*-------------小时----------------------*/
LCD.Buf[add+0] = time[0]/10+'0';
LCD.Buf[add+1] = time[0]%10+'0';
LCD.Buf[add+2] = ':';
LCD.Buf[add+3] = time[1]/10+'0';
LCD.Buf[add+4] = time[1]%10+'0';
LCD.Buf[add+5] = ':';
LCD.Buf[add+6] = time[2]/10+'0';
LCD.Buf[add+7] = time[2]%10+'0';
LCD.RefFlag = 1;
}
/*----------------------------年月日显示显示函数-------------------------------------*/
void LCD_DisplayDate(unsigned char add,unsigned char *date)
{
LCD.RefFlag =0;
/*-------------小时----------------------*/
LCD.Buf[add+0] = '2';
LCD.Buf[add+1] = '0';
LCD.Buf[add+2] = date[0]/10+'0'; //年
LCD.Buf[add+3] = date[0]%10+'0';
LCD.Buf[add+4] = '-';
LCD.Buf[add+5] = date[1]/10+'0'; //月
LCD.Buf[add+6] = date[1]%10+'0';
LCD.Buf[add+7] = '-';
LCD.Buf[add+8] = date[2]/10+'0'; //日期
LCD.Buf[add+9] = date[2]%10+'0';
LCD.Buf[add+10]= 0x20;
switch(date[3])
{
case 1:{LCD_DisplayString(add+11,"Mon");}break;
case 2:{LCD_DisplayString(add+11,"Tue");}break;
case 3:{LCD_DisplayString(add+11,"Wed");}break;
case 4:{LCD_DisplayString(add+11,"Thu");}break;
case 5:{LCD_DisplayString(add+11,"Fri");}break;
case 6:{LCD_DisplayString(add+11,"Sat");}break;
case 7:{LCD_DisplayString(add+11,"Sun");}break;
default:break;
}
LCD.RefFlag = 1;
}
void DisplayU16(unsigned char add,unsigned int num,unsigned char hide) //hide =1 隐藏0 =0的时候不隐藏0
{
xdata unsigned char temp[6]={0};
unsigned char i = 0;
for(i=0;i<5;i++)
{
temp[4-i]= num % 10 +'0';
num = num / 10;
}
temp[5]='\0';
if(hide)
{
for(i=0;i<4;i++)
{
if(temp[i]=='0')
temp[i]=0x20;
else
break;
}
}
LCD_DisplayString(add,temp);
}
//温度显示函数
void TempDisplay(unsigned char add,float Temp)
{
unsigned char DisBuff[8]={0,0,0,0,0};
unsigned int Change = 0;
Change = 10*Temp; //温度数据放大10倍 102.8 1028
DisBuff[0] = Change / 1000+'0'; //百位
DisBuff[1] = Change % 1000 / 100+'0'; //十位
DisBuff[2] = Change % 100 / 10+'0'; //个位
DisBuff[3] = '.';
DisBuff[4] = Change % 10+'0';
if(DisBuff[0]=='0') //百位消0
{
DisBuff[0] = 0x20;
if(DisBuff[1]=='0')
{ DisBuff[1]= 0x20; }
}
DisBuff[5]=0xdf,
DisBuff[6]=0x43;
DisBuff[7]='\0';
LCD_DisplayString(add,DisBuff);
}

复制代码