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标题: 12232F液晶驱动程序 [打印本页]

作者: eva 时间: 2012-8-21 14:13
标题: 12232F液晶驱动程序
#include<pic.h>//4MHZ
#define CS  RC4
#define SCK RC3
#define SDI RC2
#define LCD_COM  0xf8
#define LCD_DATA 0xfa
#define nop() asm("nop")
const unsigned char HYSY[8]={  0xbb,0xb6,//欢
                           0xd3,0xad,//迎
                           0xca,0xb9,//使
                           0xd3,0xc3,//用
                                       };
//***************12232写函数  LCD_COMM指令/ LCD_DATA 数据, 值*********************//
void lcd_comm(unsigned flag,unsigned data)
  {
unsigned char count;
CS=1;
for(count=8;count>0;count--)
{
   if(flag&0x80)
      SDI=1;
   else
      SDI=0;
SCK=1;
nop();
nop();
SCK=0;
flag=flag<<1;
   }
for(count=4;count>0;count--)
   {  if(data&0x80)
         SDI=1;
      else
         SDI=0;
         SCK=1;
         nop();
         nop();
         SCK=0;
         data=data<<1;
         }

   for(count=4;count>0;count--)
      { SDI=0;
      SCK=1;
      nop();
      nop();
      SCK=0;
      }
   for(count=4;count>0;count--)
      {
      if(data&0x80)
         SDI=1;
      else
         SDI=0;
         SCK=1;
         nop();
         nop();
         SCK=0;
         data=data<<1;
         }

      for(count=4;count>0;count--)
      { SDI=0;
      SCK=1;
      nop();
      nop();
      SCK=0;
      }
   CS=0;
}
void lcd_delay(void)
{
  unsigned int i=240;
  while(--i){;}
}
/********************12232初始化*******************************/
void lcd_init(void)
{
  PORTC=0X00;
  TRISC=0XE3;
  lcd_comm(LCD_COM,0x30);
  lcd_delay();
  lcd_comm(LCD_COM,0x0c);
  lcd_delay();
  lcd_comm(LCD_COM,0x01);
  lcd_delay();
  lcd_comm(LCD_COM,0x02);
  lcd_delay();
  lcd_comm(LCD_COM,0x80);
  lcd_delay();
}
void hysy(void)
{
   unsigned char i;
   const unsigned char *romp=HYSY;
   for(i=0x82;i<0x86;i++)
{
      lcd_comm(LCD_COM,i);
      lcd_delay();
      lcd_comm(LCD_DATA,*romp++);
      lcd_delay();
      lcd_comm(LCD_DATA,*romp++);
      lcd_delay();
   }
}
void main(void)
{
lcd_delay();
lcd_delay();
lcd_delay(); //液晶上电延时
lcd_init();
hysy();
while(1);
      }

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