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📄 nokia_5110.c

📁 用51单片机驱动 nokia5110和lcd1602的c程序
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#include "nokia_5110.h"
#include "english_6x8_pixel.h"
#include "write_chinese_string_pixel.h"
#include "move_chinese_string_pixel.h"


/*-----------------------------------------------------------------------
LCD_init          : 3310LCD初始化

编写日期          :2004-8-10 
最后修改日期      :2004-8-10 
-----------------------------------------------------------------------*/

void delay_1us(void)                 //1us延时函数
  {
   unsigned int i;
  for(i=0;i<1000;i++);
  }

  void delay_1ms(void)                 //1ms延时函数
  {
   unsigned int i;
   for (i=0;i<1140;i++);
  }
  
void delay_nms(unsigned int n)       //N ms延时函数
  {
   unsigned int i=0;
   for (i=0;i<n;i++)
   delay_1ms();
  }


void LCD_init(void)
  {
            // 产生一个让LCD复位的低电平脉冲
   LCD_RST = 0;
    delay_1us();

   LCD_RST = 1;
    
		// 关闭LCD
   LCD_CE = 0;
    delay_1us();
		// 使能LCD
   LCD_CE = 1;
    delay_1us();

    LCD_write_byte(0x21, 0);	// 使用扩展命令设置LCD模式
    LCD_write_byte(0xc8, 0);	// 设置偏置电压
    LCD_write_byte(0x06, 0);	// 温度校正
    LCD_write_byte(0x13, 0);	// 1:48
    LCD_write_byte(0x20, 0);	// 使用基本命令
    LCD_clear();	        // 清屏
    LCD_write_byte(0x0c, 0);	// 设定显示模式,正常显示
        
           // 关闭LCD
   LCD_CE = 0;
  }

/*-----------------------------------------------------------------------
LCD_clear         : LCD清屏函数

编写日期          :2004-8-10 
最后修改日期      :2004-8-10 
-----------------------------------------------------------------------*/
void LCD_clear(void)
  {
    unsigned int i;

    LCD_write_byte(0x0c, 0);			
    LCD_write_byte(0x80, 0);			

    for (i=0; i<504; i++)
      LCD_write_byte(0, 1);			
  }

/*-----------------------------------------------------------------------
LCD_set_XY        : 设置LCD坐标函数

输入参数:X       :0-83
          Y       :0-5

编写日期          :2004-8-10 
最后修改日期      :2004-8-10 
-----------------------------------------------------------------------*/
void LCD_set_XY(unsigned char X, unsigned char Y)
  {
    LCD_write_byte(0x40 | Y, 0);		// column
    LCD_write_byte(0x80 | X, 0);          	// row
  }

/*-----------------------------------------------------------------------
LCD_write_char    : 显示英文字符

输入参数:c       :显示的字符;

编写日期          :2004-8-10 
最后修改日期      :2004-8-10 
-----------------------------------------------------------------------*/
void LCD_write_char(unsigned char c)
  {
    unsigned char line;

    c -= 32;

    for (line=0; line<6; line++)
      LCD_write_byte(font6x8[c][line], 1);
  }

/*-----------------------------------------------------------------------
LCD_write_english_String  : 英文字符串显示函数

输入参数:*s      :英文字符串指针;
          X、Y    : 显示字符串的位置,x 0-83 ,y 0-5

编写日期          :2004-8-10 
最后修改日期      :2004-8-10 		
-----------------------------------------------------------------------*/
void LCD_write_english_string(unsigned char X,unsigned char Y,char *s)
  {
    LCD_set_XY(X,Y);
    while (*s) 
      {
	 LCD_write_char(*s);
	 s++;
      }
  }
/*-----------------------------------------------------------------------
LCD_write_chinese_string: 在LCD上显示汉字

输入参数:X、Y    :显示汉字的起始X、Y坐标;
          ch_with :汉字点阵的宽度
          num     :显示汉字的个数;  
          line    :汉字点阵数组中的起始行数
          row     :汉字显示的行间距
编写日期          :2004-8-11 
最后修改日期      :2004-8-12 
测试:
	LCD_write_chi(0,0,12,7,0,0);
	LCD_write_chi(0,2,12,7,0,0);
	LCD_write_chi(0,4,12,7,0,0);	
-----------------------------------------------------------------------*/                        
void LCD_write_chinese_string(unsigned char X, unsigned char Y, 
                   unsigned char ch_with,unsigned char num,
                   unsigned char line,unsigned char row)
  {
    unsigned char i,n;
    
    LCD_set_XY(X,Y);                             //设置初始位置
    
    for (i=0;i<num;)
      {
      	for (n=0; n<ch_with*2; n++)              //写一个汉字
      	  { 
      	    if (n==ch_with)                      //写汉字的下半部分
      	      {
      	        if (i==0) LCD_set_XY(X,Y+1);
      	        else
      	           LCD_set_XY((X+(ch_with+row)*i),Y+1);
              }
      	    LCD_write_byte(write_chinese[line+i][n],1);
      	  }
      	i++;
      	LCD_set_XY((X+(ch_with+row)*i),Y);
      }
  }
  
/*-----------------------------------------------------------------------
LCD_move_chinese_string: 汉字移动

输入参数:X、Y    :显示汉字的起始X、Y坐标;
          T       :移动速度;

编写日期          :2004-8-13 
最后修改日期      :2004-8-13 
-----------------------------------------------------------------------*/                        
void chinese_string (unsigned char X, unsigned char Y, unsigned char T)
  {
    unsigned char i,n,j=0;
    unsigned char buffer_h[84]={0};
    unsigned char buffer_l[84]={0};
      
    for (i=0; i<156; i++)
      {
        buffer_h[83] = move_chinese_string[i/12][j];
        buffer_l[83] = move_chinese_string[i/12][j+12];
        j++;
        if (j==12) j=0;
        
        for (n=0; n<83; n++)
          { 
            buffer_h[n]=buffer_h[n+1];
            buffer_l[n]=buffer_l[n+1];
          } 
        
        LCD_set_XY(X,Y);
        for (n=0; n<83; n++)
          { 
            LCD_write_byte(buffer_h[n],1);
          } 
        
        LCD_set_XY(X,Y+1); 
        for (n=0; n<83; n++)
          { 
            LCD_write_byte(buffer_l[n],1);
          } 
          
       delay_nms(T);
      }
}

/*-----------------------------------------------------------------------
LCD_draw_map      : 位图绘制函数

输入参数:X、Y    :位图绘制的起始X、Y坐标;
          *map    :位图点阵数据;
          Pix_x   :位图像素(长)
          Pix_y   :位图像素(宽)

编写日期          :2004-8-13
最后修改日期      :2004-8-13 
-----------------------------------------------------------------------*/
void LCD_draw_bmp_pixel(unsigned char X,unsigned char Y,unsigned char *map,
                  unsigned char Pix_x,unsigned char Pix_y)
  {
    unsigned int i,n;
    unsigned char row;
    
    if (Pix_y%8==0) row=Pix_y/8;      //计算位图所占行数
      else
        row=Pix_y/8+1;
    
    for (n=0;n<row;n++)
      {
      	LCD_set_XY(X,Y);
        for(i=0; i<Pix_x; i++)
          {
            LCD_write_byte(map[i+n*Pix_x], 1);
          }
        Y++;                         //换行
      }      
  }

/*-----------------------------------------------------------------------
LCD_write_byte    : 使用SPI接口写数据到LCD

输入参数:data    :写入的数据;
          command :写数据/命令选择;

编写日期          :2004-8-10 
最后修改日期      :2004-8-13 
-----------------------------------------------------------------------*/
void LCD_write_byte(unsigned char dat, unsigned char command)
  {
    unsigned char i;
    //PORTB &= ~LCD_CE ;		        // 使能LCD
    LCD_CE = 0;
    
    if (command == 0)
     // PORTB &= ~LCD_DC ;	        // 传送命令
     LCD_DC = 0;
    else
     // PORTB |= LCD_DC ;		        // 传送数据
     LCD_DC = 1;
		for(i=0;i<8;i++)
		{
			if(dat&0x80)
				SDIN = 1;
			else
				SDIN = 0;
			SCLK = 0;
			dat = dat << 1;
			SCLK = 1;
		}
   // SPDR = data;			// 传送数据到SPI寄存器

    //while ((SPSR & 0x80) == 0);         // 等待数据传送完毕
	
    //PORTB |= LCD_CE ;			// 关闭LCD
     LCD_CE = 1;
  }


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