单片机STM32_ds18b20工作原理简述

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硬件原理图

在这里插入图片描述

LCD12864.c

你主要看每个功能函数是如何实现的

/**************************************** * 按照自己的硬件电路图来设置 * -------------------------- * | PB.09: (LCD_BLK) | * | PC.06: (LCD_RST) | * | PE.09: (LCD_EN,LCD_CLK) | * | PE.08: (LCD_RW,LCD_DAT) | * | PE.07: (LCD_RS,LCD_CS) | * | PD.08: (LCD_DB0) | * | PD.09: (LCD_DB1) | * | PD.10: (LCD_DB2) | * | PD.11: (LCD_DB3) | * | PD.12: (LCD_DB4) | * | PD.13: (LCD_DB5) | * | PD.14: (LCD_DB6) | * | PD.15: (LCD_DB7) | * -------------------------- **********************************************************************************/
#include "lcd12864.h"
#include "comm.h"

u8 Drawx = 0x90;	//--ÓÃÓÚÇå³ý·´°×,Ä¬ÈÏµØÖ·Îª¹¦ÄÜÑ¡Ôñ½çÃæ
u8 Drawy = 0x90;	//--ÓÃÓÚÇå³ý·´°×,Ä¬ÈÏµØÖ·Îª¹¦ÄÜÑ¡Ôñ½çÃæ
u8 Drwxy = 0;	 //--ÓÃÓÚÇå³ýÏÂ»®Ïß,Ä¬ÈÏÎª¸ß×Ö½Ú
u8 Bytenum = 0;

void 	Lcd_Delay_us(u16 x)
{ 
   
	while(x--);
}


/* * º¯ÊýÃû£ºLCD12864_GPIO_Config * ÃèÊö £ºÅäÖÃLCD12864ÓÃµ½µÄI/O * ÊäÈë £ºÎÞ * Êä³ö £ºÎÞ * µ÷ÓÃ £ºÄÚ²¿µ÷ÓÃ */
void Lcd_GPIOConfigOut(void)
{ 
   
	GPIO_InitTypeDef GPIO_InitStructure;

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOE, ENABLE);
	GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_0 | GPIO_Pin_1;//RW¡¢EN
	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOB, &GPIO_InitStructure);
	
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;//RS
	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOC, &GPIO_InitStructure);
	
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;//RST
	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOB, &GPIO_InitStructure);
	
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;//BLK±³¹â
	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOB, &GPIO_InitStructure);
	ResetLcdBLK;
// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15;//°´¼üÒý½Å
// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
// GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
// GPIO_Init(GPIOE, &GPIO_InitStructure);
	
// RCC->APB2ENR |= 0x00000020;
// RCC->APB2ENR|=1<<3;//¿ªÆôBÊ±ÖÓ
// RCC->APB2ENR|=1<<6;//¿ªÆôEÊ±ÖÓ
// 
// GPIOD->CRL = (GPIOD->CRL&0x000fffff)|0x33300000;
// GPIOD->CRH = (GPIOD->CRH&0x00000000)|0x33333333; 
// GPIOD->ODR|=0XFF00;//ÉÏÀÊä³ö 
// GPIOB->CRH = (GPIOB->CRH&0xfff0ffff)|0x00030000; 
// GPIOE->CRH = (GPIOE->CRH&0x0000ffff)|0x44440000;
}	

void Lcd_GPIOConfigIn(void)                 //Í¨¹ýÁ½¸öºê¶¨Òå£¬Ê¡ÊÂÒ»ÏÂ×ÓÅäÖÃÁËÆß¸öGPIO¿Ú
{ 
   
	GPIO_InitTypeDef GPIO_InitStructure;

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
	GPIO_InitStructure.GPIO_Pin   = LCD_DATA_PIN;
	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_IPD;//±ØÐëÅäÖÃ³ÉÏÂÀÊäÈë
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(LCD_PORT, &GPIO_InitStructure);	

// GPIOD->CRH = (GPIOD->CRH&0x00000000)|0x44444444; 
}

void Lcd_GPIOD_Out(void)
{ 
   
	GPIOD->CRH = (GPIOD->CRH&0x00000000)|0x33333333;	
}

void Lcd_CheckBusy(void)
{ 
   	
	ResetLcdRS;
	SetLcdRW;
	SetLcdEN;
	//ÏÂÃæÕâ¾äºÜÖØÒª
	GPIOD->ODR = GPIOD->ODR&0X00ff;//ÒòLCDÊý¾ÝÒý½Å±»ÅäÖÃ³ÉÁË¸¡¿ÕÊäÈë£¬ËùÒÔÔÚ¶ÁLCDÒý½ÅÊý¾ÝÇ°ÏÈÐ´0£¬ÒÔ±£Ö¤Òý½ÅµçÆ½ÎÈ¶¨£¬¶ÁÈ¡µÄÊý¾Ý¿É¿¿
	Lcd_GPIOConfigIn();

	while((GPIOD->IDR>>8)&0x80);
	ResetLcdEN;
	
	Lcd_GPIOD_Out();		
}

void Lcd_WriteCmd(uint8_t cmd)
{ 
   
	Lcd_CheckBusy();

	ResetLcdRS;
	ResetLcdRW;
	SetLcdEN;
	LCD_PORT->ODR = ((LCD_PORT->ODR&0x00ff)|(cmd<<8));  //¶ÁLCDÒý½ÅÊý¾ÝÇ°ÏÈÐ´0£¬ÒÔ±£Ö¤Òý½ÅµçÆ½ÎÈ¶¨£¬¶ÁÈ¡µÄÊý¾Ý¿É¿¿

	ResetLcdEN;
}

void Lcd_WriteData(uint8_t dat)
{ 
   
	Lcd_CheckBusy();

	SetLcdRS;
	ResetLcdRW;
	SetLcdEN;
	
	LCD_PORT->ODR = ((LCD_PORT->ODR&0x00ff)|(dat<<8));  //¶ÁLCDÒý½ÅÊý¾ÝÇ°ÏÈÐ´0£¬ÒÔ±£Ö¤Òý½ÅµçÆ½ÎÈ¶¨£¬¶ÁÈ¡µÄÊý¾Ý¿É¿¿

	ResetLcdEN;
}

unsigned char ReadByte_12864(void)
{ 
   
	unsigned char dat;
	
	Lcd_CheckBusy();
	Lcd_GPIOConfigIn();	

	SetLcdRS;
	SetLcdRW;
  SetLcdEN;
	dat = (uint8_t)(LCD_PORT->IDR>>8); 
	ResetLcdEN;	
	
	Lcd_GPIOD_Out();
	
	return dat;		
}

void Lcd_Init(void)
{ 
   
	Lcd_Delay_us(100);
	SetLcdRST;
// SetLcdPSB;
	Lcd_Delay_us(LCD_DELAY);
	Lcd_WriteCmd(0x30);
	Lcd_Delay_us(LCD_DELAY);
	Lcd_WriteCmd(0x0c);
	Lcd_Delay_us(LCD_DELAY);
	Lcd_WriteCmd(0x01);
	Lcd_Delay_us(LCD_DELAY);
	Lcd_WriteCmd(0x06);
	Lcd_Delay_us(LCD_DELAY);
}

void Lcd_ClearDRAM(void)
{ 
   
	Lcd_WriteCmd(0x30);
	Lcd_WriteCmd(0x01);//ÇåDDRAM£¬ÐèÊ±4.6ms
// Lcd_Delay_us(20000); //´ËÑÓÊ±ºÜ¹Ø¼ü£¬Ö±½ÓÓ°Ïìµ½LCDË¢ÆÁËÙ¶È
}

void Lcd_ClearLineFB(uint8_t addr_x, uint8_t addr_y, uint8_t num)
{ 
   
	uint8_t x = 0, y = 0;

	Lcd_WriteCmd(0x34); //Ê¹ÓÃÀ©³äÖ¸Áî¼¯

	for(y=0; y<16; y++)
	{ 
   	 		
		for(x=0; x<num; x++)
		{ 
   
		  Lcd_WriteCmd(addr_y + y);// ÏÈ½«´¹Ö±µÄÎ»Ôª×é×ø±ê(Y) Ð´ÈëGDRAM
			Lcd_WriteCmd(addr_x + x);// ÔÙ½«Ë®Æ½×ø±ê(X) Ð´ÈëGDRAM
			
			Lcd_WriteData(0x00);//Ð´Êý¾Ý¸ß°ËÎ»
			Lcd_WriteData(0x00);//Ð´Êý¾ÝµÍ°ËÎ» 
		}
// Lcd_WriteCmd(0x36); // Ñ¡Ôñ8Î»Êý¾ÝÁ÷,À©³äÖ¸Áî, »æÍ¼ÏÔÊ¾¿ª
	}
	Lcd_WriteCmd(0x36);
	Lcd_WriteCmd(0x30);	
}

void Lcd_LineFB(uint8_t addr_x, uint8_t addr_y, uint8_t num)
{ 
   
	uint8_t x = 0, y = 0;
	
	if((Drawx!=addr_x) || (Drawy!=addr_y) || (Bytenum!=num))
	{ 
   
		Lcd_ClearLineFB(Drawx, Drawy, Bytenum);
		Drawx = addr_x;
		Drawy = addr_y;
		Bytenum = num;	
	}

	Lcd_WriteCmd(0x34); 

	for(y=0; y<16; y++)
	{ 
   			
		for(x=0; x<num; x++)
		{ 
   
			Lcd_WriteCmd(addr_y + y);
			Lcd_WriteCmd(addr_x + x);
			
			Lcd_WriteData(0xff);
			Lcd_WriteData(0xff);	
		}
		Lcd_WriteCmd(0x36);
	}
	Lcd_WriteCmd(0x30);	
}

void Draw_Pic(uint8_t addr_x, uint8_t addr_y, uint8_t const *pdat, uint8_t wide, uint8_t high)
{ 
   
	uint16_t hang, lie;
	
	Lcd_WriteCmd(0x34);//À©Õ¹Ö¸Áî¼¯
	Lcd_WriteCmd(0x36);//¹Ø»æÍ¼¹¦ÄÜ
	
	if(wide%8 == 0) wide >>= 3;
	else wide = (wide>>3)+1;
	
	for(hang=0; hang<high; hang++)
	{ 
   
		if(addr_y+hang>31)
		{ 
   
			Lcd_WriteCmd(0x80+addr_y+hang-32);
			Lcd_WriteCmd(0x88+addr_x);
		}
		else
		{ 
   
			Lcd_WriteCmd(0x80+addr_y+hang);
			Lcd_WriteCmd(0x80+addr_x);
		}
		for(lie=0; lie<wide; lie++)
		{ 
   
			Lcd_WriteData(pdat[hang*wide+lie]);
		}
	}
		Lcd_WriteCmd(0x36);// Ñ¡Ôñ8 Î»Êý¾ÝÁ÷,À©³äÖ¸Áî, »æÍ¼ÏÔÊ¾¿ª
		Lcd_WriteCmd(0x30);
}


void Lcd_Pos(unsigned char x,unsigned char y)
{ 
   
	unsigned char pos;
	switch(x)
	{ 
   
		case 0:x=0x80;break;
		case 1:x=0x90;break;
		case 2:x=0x88;break;
		case 3:x=0x98;break;
		default:x=0x80;
			break;
	}
	pos=x+y;
	Lcd_WriteCmd(pos);
}

void Draw_Font_16x16(uint8_t addr_x, uint8_t addr_y, uint8_t width, uint8_t const *pAry, uint8_t num)
{ 
   
	uint8_t x = 0, y = 0;
// uint8_t res = 2*width;

	Lcd_WriteCmd(0x34); //Ê¹ÓÃÀ©³äÖ¸Áî¼¯
	
	for(x=0; x<num; x++)
	{ 
   
			for(y=0; y<width; y++)
			{ 
   	 		
					Lcd_WriteCmd(addr_y + y);// ÏÈ½«´¹Ö±µÄÎ»Ôª×é×ø±ê(Y) Ð´ÈëGDRAM
					Lcd_WriteCmd(addr_x + x);// ÔÙ½«Ë®Æ½×ø±ê(X) Ð´ÈëGDRAM

// Lcd_WriteData(pAry[y+res*x]);//Ð´Êý¾Ý¸ß°ËÎ»
// Lcd_WriteData(pAry[y+width+res*x]);//Ð´Êý¾ÝµÍ°ËÎ» 
					Lcd_WriteData(pAry[y]);//Ð´Êý¾Ý¸ß°ËÎ»
					Lcd_WriteData(pAry[y+width]);//Ð´Êý¾ÝµÍ°ËÎ» 
			}
// Lcd_WriteCmd(0x36); // Ñ¡Ôñ8Î»Êý¾ÝÁ÷,À©³äÖ¸Áî, »æÍ¼ÏÔÊ¾¿ª
	}	
	Lcd_WriteCmd(0x36);
	Lcd_WriteCmd(0x30);		
}


void Draw_Dot(unsigned char x, unsigned char y)
{ 
   
	unsigned char x_byte,x_bit;//ÔÚºá×ø±êµÄÄÄÒ»¸ö×Ö½Ú£¬ÄÄÒ»¸öÎ»
	unsigned char y_byte,y_bit;//ÔÚÄÄÒ»Ò³
	unsigned char temp_h,temp_l; //ÕâÁ½±äÁ¿ÓÃÀ´´æ·Å¶Á³öÀ´µÄÊý¾Ý
	x &= 0x7f; //ÏÞ¶¨xµÄÊýÖµ·¶Î§ÔÚ0¡«127Ö®¼ä
	y &= 0x3f; //ÏÞ¶¨yµÄÊýÖµ·¶Î§ÔÚ0¡«63Ö®¼ä
	x_byte = x >> 4;//Ëã³öÔÚÄÄÒ»¸ö×Ö½Ú£¨µØÖ·£©£¬Ò»¸öµØÖ·ÊÇ16Î»
	x_bit = x & 0x0f;//Ëã³öÔÚÄÄÒ»¸öÎ»
	y_byte = y >> 5; //È·¶¨ÔÚÉÏ°ëÆÁ»¹ÊÇÏÂ°ëÆÁ 0-ÉÏ 1-ÏÂ 
	y_bit = y & 0x1f;
	Lcd_WriteCmd(0x34);//À©Õ¹Ö¸Áî¼¯
	Lcd_WriteCmd(0x36);//¹Ø»æÍ¼¹¦ÄÜ
	Lcd_WriteCmd(0x80 + y_bit);//ÏÈÐ´´¹Ö±µØÖ·£¬×î¸ßÎ»±ØÐëÎª1
	Lcd_WriteCmd(0x80 + x_byte + 8 * y_byte);//Ë®Æ½×ø±ê
	//ÏÂ°ëÆÁµÄË®Æ½×ø±êÆðÊ¼µØÖ·Îª0X88
	//8 * y_byte ¾ÍÊÇÓÃÀ´È·¶¨ÔÚÉÏ°ëÆÁ»¹ÊÇÏÂ°ëÆÁ
	ReadByte_12864();//ÏÈ¿Õ¶ÁÒ»´Î
  temp_h = ReadByte_12864();//¶Á¸ßÎ»
	temp_l = ReadByte_12864();	//¶ÁµÍÎ»
	//¶Á²Ù×÷»á¸Ä±äAC£¬ËùÒÔÒªÖØÐÂÉèÖÃÒ»´Î
	Lcd_WriteCmd(0x80 + y_bit);//ÏÈÐ´´¹Ö±µØÖ·£¬×î¸ßÎ»±ØÐëÎª1
	Lcd_WriteCmd(0x80 + x_byte + 8 * y_byte);//Ë®Æ½×ø±ê
	if(x_bit < 8)
	{ 
   
		Lcd_WriteData(temp_h | (0x01 << (7 - x_bit)));//Ð´¸ß×Ö½Ú¡£ÒòÎª×ø±êÊÇ´Ó×óÏòÓÒµÄ,//¶øGDRAM¸ßÎ»ÔÚ×ó£¬µ×Î»ÔÚÓÒ 
		Lcd_WriteData(temp_l); //ÔÊý¾ÝËÍ»Ø 
	}
	else
	{ 
   	 
		Lcd_WriteData(temp_h);
		Lcd_WriteData(temp_l | (0x01 << (15 - x_bit)));			
	}
	Lcd_WriteCmd(0x36);// Ñ¡Ôñ8 Î»Êý¾ÝÁ÷,À©³äÖ¸Áî, »æÍ¼ÏÔÊ¾¿ª
	Lcd_WriteCmd(0x30);
}

void Draw_Line(unsigned char  x1, unsigned char y1, unsigned char x2, unsigned char y2)
{ 
   
	int x, y, dx, dy, s1, s2, p, temp, interchange, i;
	x = x1;
	y = y1;
	dx = x2 > x1 ? (x2 - x1) : (x1 - x2);
	dy = y2 > y1 ? (y2 - y1) : (y1 - y2);
	if(x2 > x1)
	   s1 = 1;
	else
	   s1 = -1;
	if(y2>y1)
	   s2 = 1;
	else
	   s2 = -1;
	if(dy > dx)
	{ 
   
	   temp = dx;
	   dx = dy;
	   dy = temp;
	   interchange = 1;
	}
	else
	   interchange = 0;
	p = (dy << 1) - dx;
	for(i = 0;i <= dx;i++)
	{ 
   
	  	Draw_Dot(x,y);
	   	if(p >= 0)
	   	{ 
   
	    	if(interchange == 0)
	     		y = y + s2;
	   		else
	     		x = x + s1;
	     	p = p - (dx << 1);
	   	}
	   	if(interchange == 0)
	   		x = x + s1; 
	   	else
		   y = y + s2;
		p = p + (dy << 1);
	}
}

void Lcd_ClearGRAM(void)
{ 
   
	uint8_t y, x,z;
  	uint8_t addr_y, addr_x;
  	addr_y = 0x80;
  	addr_x = 0x80;
  	Lcd_WriteCmd(0x34);
  	for(z=0; z<2; z++)
  	{ 
   
    	for(y=0; y<32; y++)
    	{ 
   
      		for(x=0; x<8; x++)//°Ë¸öÖÐÎÄ×Ö
      		{ 
   
        		Lcd_WriteCmd(addr_y+y); // ½«´¹Ö±µÄÎ»Ôª×é×ø±ê( Y) Ð´ÈëGDRAM
  	    		Lcd_WriteCmd(addr_x+x); // ÏÈ½«Ë®Æ½µ¥ÔªÐ´Èëºá×ø±ê£¨X£©) Ð´ÈëGDRAM 
        		Lcd_WriteData(0x00);	//Ð´Êý¾Ý¸ß°ËÎ»£¬16*16
        		Lcd_WriteData(0x00); //Ð´Êý¾ÝµÍ°ËÎ»
       		}//for(x=0; x<8; x++) end
       		Lcd_WriteCmd(0x36);  // Ñ¡Ôñ8 Î»Êý¾ÝÁ÷,À©³äÖ¸Áî, »æÍ¼ÏÔÊ¾¿ª
	 	}//for(y=0; y<32; y++) end
		addr_x = 0x88;
  	}//for(z=0; z<2; z++) end
		Lcd_WriteCmd(0x30); 
}

void Lcd_Printf(uint8_t add, uint8_t *pdat)
{ 
   
	Lcd_WriteCmd(add);
	while(*pdat != '\0')
	{ 
   
		Lcd_WriteData(*pdat++);
	// Lcd_Delay_us(5);
	}
}

/
/*----------------È¡ÏûÏÂ»®Ïß/Ìî³äº¯Êý---------------------------------*/
void UnLcdDrw(uint8_t addr_x, uint8_t addr_y)
{ 
   
  	uint8_t y, x;

  	Lcd_WriteCmd(0x34);
  	for(y=0; y<15; y++)
  	{ 
   
    	for(x=0; x<1; x++)
    	{ 
   
	   		Lcd_WriteCmd(addr_y+y); // ÏÈ½«´¹Ö±µÄÎ»Ôª×é×ø±ê( Y) Ð´ÈëGDRAM
       		Lcd_WriteCmd(addr_x+x); // ÔÙ½«Ë®Æ½×ø±ê( X) Ð´ÈëGDRAM 
	   		Lcd_WriteData(0x00);	//Ð´Êý¾Ý¸ß°ËÎ»
       		Lcd_WriteData(0x00); //Ð´Êý¾ÝµÍ°ËÎ»
    	}//for(x=0; x<1; x++) end 
    	Lcd_WriteCmd(0x36);  // Ñ¡Ôñ8 Î»Êý¾ÝÁ÷,À©³äÖ¸Áî, »æÍ¼ÏÔÊ¾¿ª
  	}//for(y=0; y<16; y++) end
		
		Lcd_WriteCmd(0x30);
}

/*----------------µ¥×Ö½Ú·´°×/»ÏÂ»®Ïß---------------------------------*/

void LcdDrw(uint8_t addr_x, uint8_t addr_y, uint8_t num, uint8_t fl)
{ 
   
  	uint8_t y, x, i;
	if(fl == LINE) i = 14;
	else i = 0;

  	if((Drawx!=addr_x)||(Drawy!=addr_y)||(Drwxy!=num))
  	{ 
   	
	   	UnLcdDrw(Drawx,Drawy);
	   	Drawx=addr_x;   
       	Drawy=addr_y;
       	Drwxy=num;
  	}//if((Drawx!=addr_x)||(Drawy!=addr_y)||(Drwxy!=num)) end
  	Lcd_WriteCmd(0x34);
  	for(y=i; y<15; y++)
  	{ 
   
    	for(x=0; x<1; x++)
    	{ 
   
	   		Lcd_WriteCmd(addr_y+y); // ÏÈ½«´¹Ö±µÄÎ»Ôª×é×ø±ê( Y) Ð´ÈëGDRAM
       	Lcd_WriteCmd(addr_x+x); // ÔÙ½«Ë®Æ½×ø±ê( X) Ð´ÈëGDRAM 
	   		if (num == 0)//Ê××Ö½Ú·´°×
       	{ 
   
		  		Lcd_WriteData(0xff);	//Ð´Êý¾Ý¸ß°ËÎ»
          Lcd_WriteData(0x00); //Ð´Êý¾ÝµÍ°ËÎ»
       	}//if (num == 0) end
	   		else if (num == 1)//´Î×Ö½Ú·´°×
       	{ 
   
          Lcd_WriteData(0x00);	//Ð´Êý¾Ý¸ß°ËÎ»
          Lcd_WriteData(0xff); //Ð´Êý¾ÝµÍ°ËÎ» 
	   		}//else if (num == 1) end
    	}//for(x=0; x<1; x++) end 
    	Lcd_WriteCmd(0x36);  // Ñ¡Ôñ8 Î»Êý¾ÝÁ÷,À©³äÖ¸Áî, »æÍ¼ÏÔÊ¾¿ª
  	}//for(y=0; y<16; y++) end 
		Lcd_WriteCmd(0x30);
}

/*----------------×Ö·´°×/»ÏÂ»®Ïß---------------------------------*/
void LcdDrwWord(uint8_t addr_x, uint8_t addr_y, uint8_t fl)
{ 
   
  uint8_t y, x, i;
	if(fl == LINE) i = 14;
	else i = 0;

  	if((Drawx!=addr_x)||(Drawy!=addr_y))
  	{ 
   	
	   	UnLcdDrw(Drawx, Drawy);
	   	Drawx=addr_x;   
      Drawy=addr_y;
  	}//if((Drawx!=addr_x)||(Drawy!=addr_y)||(Drwxy!=num)) end
  	Lcd_WriteCmd(0x34);
  	for(y=i; y<15; y++)
  	{ 
   
    	for(x=0; x<1; x++)
    	{ 
   
	   		Lcd_WriteCmd(addr_y+y); // ÏÈ½«´¹Ö±µÄÎ»Ôª×é×ø±ê( Y) Ð´ÈëGDRAM
       	Lcd_WriteCmd(addr_x+x); // ÔÙ½«Ë®Æ½×ø±ê( X) Ð´ÈëGDRAM
			  Lcd_WriteData(0xff);	//Ð´Êý¾Ý¸ß°ËÎ»
        Lcd_WriteData(0xff); //Ð´Êý¾ÝµÍ°ËÎ»
		  }	               
   	Lcd_WriteCmd(0x36);  // Ñ¡Ôñ8 Î»Êý¾ÝÁ÷,À©³äÖ¸Áî, »æÍ¼ÏÔÊ¾¿ª
  	}//for(y=0; y<16; y++) end
	Lcd_WriteCmd(0x30);	
}

// * º¯ÊýÃû£ºLCD12864_Init
// * ÃèÊö £ºLCD12864³õÊ¼»¯
// * ÊäÈë £ºÎÞ
// * Êä³ö £ºÎÞ
// * µ÷ÓÃ £ºÍâ²¿µ÷ÓÃ
// */
void LCD12864_Init(void)
{ 
   
	Lcd_GPIOConfigOut();

	Lcd_Init();
	SetLcdBLK;	
	
	Lcd_ClearDRAM();
	Lcd_ClearGRAM(); 
}

//1¡¢80-87
//2¡¢90-97
//3¡¢88-8f
//4¡¢98-9f

void Ready_Mea_Scr(void)
{ 
   
	Lcd_Printf(0x81, "");
	Lcd_Printf(0x90, " ÕýÔÚ×¼±¸²âÁ¿" );
	Lcd_Printf(0x88, " ÇëÉÔµÈ... " );

}

LCD12864.h

#ifndef __LCD12864_H
#define __LCD12864_H

#include "stm32f10x.h"

#define FB 0 //LCDµ¥×Ö½Ú·´°×ÏÔÊ¾
#define LINE 1 //LCDµ¥×Ö½ÚÏÂ»®ÏßÏÔÊ¾

#define LCD_DELAY 30

#define LCD_PORT GPIOD

#define LCD_DATA_PIN GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15
#define LCD_RS_PIN GPIO_Pin_5
#define LCD_RW_PIN GPIO_Pin_0
#define LCD_EN_PIN GPIO_Pin_1

#define LCD_BLK_PIN GPIO_Pin_9
#define LCD_RST_PIN GPIO_Pin_12

#define SetLcdRS GPIO_SetBits (GPIOC, LCD_RS_PIN)
#define ResetLcdRS GPIO_ResetBits(GPIOC, LCD_RS_PIN)

#define SetLcdRW GPIO_SetBits (GPIOB, LCD_RW_PIN)
#define ResetLcdRW GPIO_ResetBits(GPIOB, LCD_RW_PIN)

#define SetLcdEN GPIO_SetBits (GPIOB, LCD_EN_PIN)
#define ResetLcdEN GPIO_ResetBits(GPIOB, LCD_EN_PIN)

#define SetLcdBLK GPIO_SetBits(GPIOB, LCD_BLK_PIN)
#define ResetLcdBLK GPIO_ResetBits(GPIOB, LCD_BLK_PIN)

//#define SetLcdRST GPIO_SetBits (GPIOC, LCD_RST_PIN)
#define SetLcdRST GPIO_SetBits (GPIOB, LCD_RST_PIN)
#define ResetLcdRST GPIO_ResetBits(GPIOB, LCD_RST_PIN)

void Lcd_Delay_us(u16 x);
void LCD12864_Init(void);
//void Scr1(void);
void Lcd_WriteCmd(uint8_t cmd);
void Lcd_WriteData(uint8_t dat);
void Draw_Font_16x16(uint8_t addr_x, uint8_t addr_y, uint8_t width, uint8_t const *pAry, uint8_t num);
void Draw_Line(unsigned char  x1, unsigned char y1, unsigned char x2, unsigned char y2);
void LCD_12864_DrawLine(u16 x1, u16 y1, u16 x2, u16 y2);
void Set_12864_point(u8 x,u8 y);
void Draw_Dot(unsigned char x, unsigned char y);
void Lcd_Pos(unsigned char x,unsigned char y);
void Draw_Pic(uint8_t addr_x, uint8_t addr_y, uint8_t const *pdat, uint8_t wide, uint8_t high);
void Lcd_ClearLineFB(uint8_t addr_x, uint8_t addr_y, uint8_t num);
void Lcd_ClearGRAM(void);
void Lcd_ClearDRAM(void);
void Lcd_Printf(uint8_t add, uint8_t *pdat);
void LcdDrw(uint8_t addr_x, uint8_t addr_y, uint8_t num, uint8_t fl);
void LcdDrwWord(uint8_t addr_x, uint8_t addr_y, uint8_t fl);
void Lcd_LineFB(uint8_t addr_x, uint8_t addr_y, uint8_t num);
void Ready_Mea_Scr(void);
void Show_Uarms_Scr(char *string);


#endif /* __LCD12864_H */