main.c

四位段码液晶（lcm046）的测试程序

#include <MC9S08GB60.h>                
#include <hidef.h> 
#include "derivative.h" 
#include "pub_def.h"

void Wrcomd(UINT8 zoom);//写命令
void Wrdadd(UINT8 zoom);//写地址
void Wrdata(UINT8 zoom);//写数据
void Wrdataloop(UINT8 zoom);//循环写
void Delay1ms(UINT16 j);//1ms延时
void Delay(UINT8 j);
UINT16 i;

UINT8 command;
UINT8 lcdaddr;
UINT8 lcdaddrtemp;
UINT8 lcddata;
UINT8 lcddatatemp;
UINT8 qian,bai,ge,shi;
UINT8 qianH,qianL,baiH,baiL,shiH,shiL,geH,geL;


UINT8 mazhi[10]={0x7D,0x05,0x5B,0x1F,0x27,0x3E,0x7E,0x15,0x7F,0x3F};//码字赋值
                //0////1////2/////3///4////5/////6////7////8////9///
void main(void) 
{
  
  SOPT = 0x13; //闭关门狗                                     
  SPMSC1 = 0x1C;                                      
  SPMSC2 = 0x00;                                      
  ICGC1 = 0x44;                                      
  ICGC2 = 0x00;//FLL处于SCM模式，总线时钟为4MHZ
                                       
  PTASE = 0x00;                                   
  PTBSE = 0x00;                                      
  PTCSE = 0x00;                                      
  PTDSE = 0x00;                                      
  PTESE = 0x00;                                      
  PTFSE = 0x00;                                      
  PTGSE = 0x00; 
  
  PTBD &= (unsigned char)~0x0F; //0111 1111  PTAD6~PTAD0 A B C D E F G                            
  PTBPE &= (unsigned char)~0x0F;                              
  PTBDD |= (unsigned char)0x0F; //0111 1111置为输出模式 
  PTBD=0x0F;
  
  Delay1ms(500);
  
  Wrcomd(0x29);
  Wrcomd(0x18);
  Wrcomd(0x01);
  Wrcomd(0x03);
  
  //显示第一位  
  qian=mazhi[8];
  qianH=(qian>>4)&0x0F;
  qianL=qian&0x0F;
  Wrdadd(0x00);
  Wrdata(qianH);  
  Wrdadd(0x04);
  Wrdata(qianL);
  
  //显示第二位
  bai=mazhi[9];
  baiH=(bai>>4)&0x0F;
  baiL=bai&0x0F;  
  Wrdadd(0x08);
  Wrdata(baiH);
  Wrdadd(0x0C);
  Wrdata(baiL);
  
  //显示第三位
  shi=mazhi[0];
  shiH=((shi>>4)&0x0F)|0x08;
  shiL=shi&0x0F;//点亮小数点  
  Wrdadd(0x10);
  Wrdata(shiH);
  Wrdadd(0x14);
  Wrdata(shiL);
  
  //显示第四位
  ge=mazhi[1];
  geH=(ge>>4)&0x0F;
  geL=ge&0x0F;    
  Wrdadd(0x18);
  Wrdata(geH);
  Wrdadd(0x1C);
  Wrdata(geL);
 
  }
////////////////////////////////////
///////////////////////////////////
void Wrcomd(UINT8 zoom)//写命令
{
 UINT8 i;
 PTBD_PTBD0=1;
 Delay(1);
 PTBD_PTBD0=0;
 Delay(1);
 PTBD_PTBD1=0;
 Delay(1);
 PTBD_PTBD2=1;
 Delay(1);
 PTBD_PTBD1=1;
 Delay(1);
 PTBD_PTBD1=0;
 Delay(1);
 PTBD_PTBD2=0;
 Delay(1);
 PTBD_PTBD1=1;
 Delay(1);
 PTBD_PTBD1=0;
 Delay(1);
 PTBD_PTBD2=0;
 Delay(1);
 PTBD_PTBD1=1;
 Delay(1);
 for(i=0;i<9;i++) 
 {
  Delay(1);
  PTBD_PTBD1=0;
  Delay(1);
  if(zoom&0x80) 
   {
    PTBD_PTBD2=1; 
   } else{ PTBD_PTBD2=0;}
  Delay(1);
  PTBD_PTBD1=1;
  Delay(1);
  zoom=zoom<<1;
 }
 
}
void Wrdadd(UINT8 zoom)//写地址
{
  UINT8 i;
 PTBD_PTBD0=1;
 Delay(1);
 PTBD_PTBD0=0;
 Delay(1);
 PTBD_PTBD1=0;
 Delay(1);
 PTBD_PTBD2=1;
 Delay(1);
 PTBD_PTBD1=1;
 Delay(1);
 PTBD_PTBD1=0;
 Delay(1);
 PTBD_PTBD2=0;
 Delay(1);
 PTBD_PTBD1=1;
 Delay(1);
 PTBD_PTBD1=0;
 Delay(1);
 PTBD_PTBD2=1;
 Delay(1);
 PTBD_PTBD1=1;
 Delay(1);
 for(i=0;i<6;i++) 
 {
  Delay(1);
  PTBD_PTBD1=0;
  Delay(1);
  if(zoom&0x80) 
   {
    PTBD_PTBD2=1; 
   } else{ PTBD_PTBD2=0;}
  Delay(1);
  PTBD_PTBD1=1;
  Delay(1);
  zoom=zoom<<1;
 }
}
void Wrdata(UINT8 zoom)//写数据
{
  UINT8 i;
  for(i=0;i<4;i++) 
  {
   Delay(1);
   PTBD_PTBD1=0;
   Delay(1);
   if(zoom&0x01)
   {
    PTBD_PTBD2=1; 
   } else{ PTBD_PTBD2=0;}
   Delay(1);
   PTBD_PTBD1=1;
   Delay(1);
   zoom=zoom>>1;
  }
}

void Wrdataloop(UINT8 zoom)//循环写
{
  UINT8 y;
  UINT8 add=zoom;
  for(y=0;y<32;y++) 
  {
   
   Wrdadd(zoom);
   Wrdata(0x0F);
   add=add+0x04; 
  }
}

void Delay1ms(UINT8 j)//j=1 delay 1ms 
{
   UINT16 k;
 for(k=0;k<j;k++)
 {
  for(i=0;i<96;i++);
 }
  
}
void Delay(UINT8 j)
{
   UINT8 k;
 for(k=0;k<j;k++)
 {
  for(i=0;i<5;i++);
 }
  
}