main.c

lcd 1602A 底层函数

#include <msp430x14x.h>
char TAB0[] ={0x00,0x00,0x04,0x04,0x04,0x0d,0x05,0x04,0x00,0x10,0x10,0x14,0x18,0x10,0x11,0x1f,
             0x05,0x01,0x01,0x0f,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x1e,0x00,0x00,0x00,0x00,//华
             0x00,0x00,0x01,0x01,0x0f,0x09,0x09,0x09,0x00,0x00,0x00,0x00,0x1e,0x02,0x02,0x02,
             0x09,0x0f,0x09,0x01,0x01,0x01,0x01,0x00,0x02,0x1e,0x02,0x00,0x00,0x00,0x00,0x00,//中
             };
char TAB1[] ={0x00,0x00,0x00,0x0F,0x09,0x09,0x01,0x02,0x00,0x10,0x10,0x1E,0x02,0x02,0x00,0x14,
             0x02,0x06,0x0E,0x0A,0x02,0x03,0x02,0x00,0x14,0x08,0x08,0x08,0x04,0x06,0x00,0x00,
             0x00,0x00,0x00,0x00,0x02,0x02,0x0A,0x0A,0x00,0x00,0x00,0x00,0x08,0x08,0x0A,0x0A,
             0x0A,0x06,0x02,0x02,0x02,0x1f,0x00,0x00,0x0A,0x0C,0x08,0x08,0x08,0x1f,0x00,0x00,
};
char TAB2[] ={0x00,0x00,0x00,0x00,0x00,0x1f,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x1F,0x10,0x10,0x01,0x02,0x04,0x08,0x00,0x00,0x00,0x00,0x08,0x04,0x02,0x01,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0x05,0x05,0x1F,0x10,0x07,0x00,0x00,0x00,0x04,0x04,0x0F,0x01,0x0C,0x00,0x01,0x1F,0x01,0x03,0x01,0x00,0x00,0x10,0x00,0x1f,0x00,0x00,0x00,0x00,0x00,
            
};
char zx[] = {0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39};
void Init_Keypad(void);
void Check_Key(void);
void delay();
void Key_Event(void);
void DispStr(unsigned char x,unsigned char y,unsigned char *ptr);
void DispNChar(unsigned char x,unsigned char y, unsigned char n,unsigned char *ptr);
void LocateXY(unsigned char x,unsigned char y);
void Disp1Char(unsigned char x,unsigned char y,unsigned char data);
void LcdReset(void);
void LcdWriteCommand(unsigned char cmd,unsigned char chk);
void LcdWriteData( unsigned char data );
void WaitForEnable(void);
void Delay5ms(void);
extern unsigned char key_Pressed;      
extern unsigned char key_val;         
extern unsigned char key_Flag; 

void write_CGRAM( char TAB[], char n )     //定义输入CGRAM的字模代码，字模的个数
{
    char tmp;
    char i;
    char j;
        char k;
    tmp = 0x40;                       //设置CGRAM地址的格式字
    k = 0;
        for( j = 0; j < n; j++)
        {
                 for(i = 0; i < 8; i++)
             {
        LcdWriteCommand( tmp + i,1); // 设置自定义字符的 CGRAM 地址
          LcdWriteData(TAB[k]);   // 向CGRAM写入自定义字符表的数据
           k++;
             }
                 tmp = tmp + 0x08;
        }
}
int s=0;
/********************主函数********************/
void main(void)
{
    WDTCTL = WDTPW + WDTHOLD; 
    
   
   LcdReset();
   TACCR0 = 2408;
   CCTL0 |= CCIE;
   TACTL = TASSEL0 + ID_3 + MC0;
   
    _EINT();
    LPM0;
    
}
#pragma vector = TIMERA0_VECTOR
__interrupt void Timer_A (void)
{  
   char c;                  //定义显示的列位置
    char i;
    char j=0;
    switch(s)
    {
    case 0:
      write_CGRAM(TAB0,8);
      break;
    case 1:
      write_CGRAM(TAB1,8);
      break;
     case 2:
      write_CGRAM(TAB2,8);
      break;
    }
    
  LocateXY(0,9);
  for( i = 0, c = 6; i < 2; i++)  
    {
      Disp1Char(c, 0, j);
     c++;
     j++;
      Disp1Char(c, 0, j);  
      c--;
     j++;
       Disp1Char(c, 1, j); 
       c++;
     j++;
       Disp1Char(c, 1, j);  
      c++;
     j++; 
       }
  s+=1;
  if(s==3)
     s=0;
    }