STM32 LCD12864 原理和实现代码
2024-06-06 03:15:10
硬件原理图
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·´°×,ĬÈϵØַΪ¹¦ÄÜÑ¡Ôñ½çÃæ
u8 Drawy = 0x90; //--ÓÃÓÚÇå³ý·´°×,ĬÈϵØַΪ¹¦ÄÜÑ¡Ôñ½çÃæ
u8 Drwxy = 0; //--ÓÃÓÚÇå³ýÏ»®Ïß,ĬÈÏΪ¸ß×Ö½Ú
u8 Bytenum = 0;void Lcd_Delay_us(u16 x)
{while(x--);
}/** º¯ÊýÃû£ºLCD12864_GPIO_Config* ÃèÊö £ºÅäÖÃLCD12864Óõ½µÄI/O* ÊäÈë £ºÎÞ* Êä³ö £ºÎÞ* µ÷Óà £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¡¢ENGPIO_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;//RSGPIO_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;//RSTGPIO_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±³¹âGPIO_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;//¿ªÆôBʱÖÓ
// RCC->APB2ENR|=1<<6;//¿ªÆôEʱÖÓ
//
// 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) //ͨ¹ýÁ½¸öºê¶¨Ò壬ʡÊÂÒ»ÏÂ×ÓÅäÖÃÁËÆ߸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;//±ØÐëÅäÖóÉÏÂÀÊäÈëGPIO_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;//ÏÂÃæÕâ¾äºÜÖØÒªGPIOD->ODR = GPIOD->ODR&0X00ff;//ÒòLCDÊý¾ÝÒý½Å±»ÅäÖóÉÁ˸¡¿ÕÊäÈ룬ËùÒÔÔÚ¶ÁLCDÒý½ÅÊý¾ÝÇ°ÏÈд0£¬ÒÔ±£Ö¤Òý½ÅµçƽÎȶ¨£¬¶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°ÏÈд0£¬ÒÔ±£Ö¤Òý½ÅµçƽÎȶ¨£¬¶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°ÏÈд0£¬ÒÔ±£Ö¤Òý½ÅµçƽÎȶ¨£¬¶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£¬Ðèʱ4.6ms
// Lcd_Delay_us(20000); //´ËÑÓʱºÜ¹Ø¼ü£¬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); //ʹÓÃÀ©³äÖ¸Áfor(y=0; y<16; y++){ for(x=0; x<num; x++){Lcd_WriteCmd(addr_y + y);// ÏȽ«´¹Ö±µÄλԪ×é×ø±ê(Y) дÈëGDRAMLcd_WriteCmd(addr_x + x);// ÔÙ½«Ë®Æ½×ø±ê(X) дÈëGDRAMLcd_WriteData(0x00);//дÊý¾Ý¸ß°ËλLcd_WriteData(0x00);//дÊý¾ÝµÍ°Ëλ }
// Lcd_WriteCmd(0x36); // Ñ¡Ôñ8λÊý¾ÝÁ÷,À©³äÖ¸Áî, »æͼÏÔʾ¿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¸ÁLcd_WriteCmd(0x36);//¹Ø»æͼ¹¦ÄÜif(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 λÊý¾ÝÁ÷,À©³äÖ¸Áî, »æͼÏÔʾ¿ªLcd_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); //ʹÓÃÀ©³äÖ¸Áfor(x=0; x<num; x++){for(y=0; y<width; y++){ Lcd_WriteCmd(addr_y + y);// ÏȽ«´¹Ö±µÄλԪ×é×ø±ê(Y) дÈëGDRAMLcd_WriteCmd(addr_x + x);// ÔÙ½«Ë®Æ½×ø±ê(X) дÈëGDRAM// Lcd_WriteData(pAry[y+res*x]);//дÊý¾Ý¸ß°Ëλ
// Lcd_WriteData(pAry[y+width+res*x]);//дÊý¾ÝµÍ°Ëλ Lcd_WriteData(pAry[y]);//дÊý¾Ý¸ß°ËλLcd_WriteData(pAry[y+width]);//дÊý¾ÝµÍ°Ëλ }
// Lcd_WriteCmd(0x36); // Ñ¡Ôñ8λÊý¾ÝÁ÷,À©³äÖ¸Áî, »æͼÏÔʾ¿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»¸öλunsigned char y_byte,y_bit;//ÔÚÄÄÒ»Ò³unsigned char temp_h,temp_l; //ÕâÁ½±äÁ¿ÓÃÀ´´æ·Å¶Á³öÀ´µÄÊý¾Ýx &= 0x7f; //ÏÞ¶¨xµÄÊýÖµ·¶Î§ÔÚ0¡«127Ö®¼äy &= 0x3f; //ÏÞ¶¨yµÄÊýÖµ·¶Î§ÔÚ0¡«63Ö®¼äx_byte = x >> 4;//Ëã³öÔÚÄÄÒ»¸ö×Ö½Ú£¨µØÖ·£©£¬Ò»¸öµØÖ·ÊÇ16λx_bit = x & 0x0f;//Ëã³öÔÚÄÄÒ»¸öλy_byte = y >> 5; //È·¶¨ÔÚÉÏ°ëÆÁ»¹ÊÇÏ°ëÆÁ 0-ÉÏ 1-Ï y_bit = y & 0x1f;Lcd_WriteCmd(0x34);//À©Õ¹Ö¸ÁLcd_WriteCmd(0x36);//¹Ø»æͼ¹¦ÄÜLcd_WriteCmd(0x80 + y_bit);//ÏÈд´¹Ö±µØÖ·£¬×î¸ßλ±ØÐëΪ1Lcd_WriteCmd(0x80 + x_byte + 8 * y_byte);//ˮƽ×ø±ê//Ï°ëÆÁµÄˮƽ×ø±êÆðʼµØַΪ0X88//8 * y_byte ¾ÍÊÇÓÃÀ´È·¶¨ÔÚÉÏ°ëÆÁ»¹ÊÇÏ°ëÆÁReadByte_12864();//ÏÈ¿Õ¶ÁÒ»´Îtemp_h = ReadByte_12864();//¶Á¸ßλtemp_l = ReadByte_12864(); //¶ÁµÍλ//¶Á²Ù×÷»á¸Ä±äAC£¬ËùÒÔÒªÖØÐÂÉèÖÃÒ»´ÎLcd_WriteCmd(0x80 + y_bit);//ÏÈд´¹Ö±µØÖ·£¬×î¸ßλ±ØÐëΪ1Lcd_WriteCmd(0x80 + x_byte + 8 * y_byte);//ˮƽ×ø±êif(x_bit < 8){Lcd_WriteData(temp_h | (0x01 << (7 - x_bit)));//д¸ß×Ö½Ú¡£ÒòΪ×ø±êÊÇ´Ó×óÏòÓÒµÄ,//¶øGDRAM¸ßλÔÚ×󣬵×λÔÚÓÒ Lcd_WriteData(temp_l); //ÔÊý¾ÝËÍ»Ø }else{ Lcd_WriteData(temp_h);Lcd_WriteData(temp_l | (0x01 << (15 - x_bit))); }Lcd_WriteCmd(0x36);// Ñ¡Ôñ8 λÊý¾ÝÁ÷,À©³äÖ¸Áî, »æͼÏÔʾ¿ªLcd_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;elses1 = -1;if(y2>y1)s2 = 1;elses2 = -1;if(dy > dx){temp = dx;dx = dy;dy = temp;interchange = 1;}elseinterchange = 0;p = (dy << 1) - dx;for(i = 0;i <= dx;i++){Draw_Dot(x,y);if(p >= 0){if(interchange == 0)y = y + s2;elsex = x + s1;p = p - (dx << 1);}if(interchange == 0)x = x + s1; elsey = 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±µÄλԪ×é×ø±ê( Y) дÈëGDRAMLcd_WriteCmd(addr_x+x); // ÏȽ«Ë®Æ½µ¥ÔªÐ´Èëºá×ø±ê£¨X£©) дÈëGDRAM Lcd_WriteData(0x00); //дÊý¾Ý¸ß°Ë룬16*16Lcd_WriteData(0x00); //дÊý¾ÝµÍ°Ëλ}//for(x=0; x<8; x++) endLcd_WriteCmd(0x36); // Ñ¡Ôñ8 λÊý¾ÝÁ÷,À©³äÖ¸Áî, »æͼÏÔʾ¿ª}//for(y=0; y<32; y++) endaddr_x = 0x88;}//for(z=0; z<2; z++) endLcd_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¡ÏûÏ»®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); // ÏȽ«´¹Ö±µÄλԪ×é×ø±ê( Y) дÈëGDRAMLcd_WriteCmd(addr_x+x); // ÔÙ½«Ë®Æ½×ø±ê( X) дÈëGDRAM Lcd_WriteData(0x00); //дÊý¾Ý¸ß°ËλLcd_WriteData(0x00); //дÊý¾ÝµÍ°Ëλ}//for(x=0; x<1; x++) end Lcd_WriteCmd(0x36); // Ñ¡Ôñ8 λÊý¾ÝÁ÷,À©³äÖ¸Áî, »æͼÏÔʾ¿ª}//for(y=0; y<16; y++) endLcd_WriteCmd(0x30);
}/*----------------µ¥×Ö½Ú·´°×/»Ï»®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)) endLcd_WriteCmd(0x34);for(y=i; y<15; y++){for(x=0; x<1; x++){Lcd_WriteCmd(addr_y+y); // ÏȽ«´¹Ö±µÄλԪ×é×ø±ê( Y) дÈëGDRAMLcd_WriteCmd(addr_x+x); // ÔÙ½«Ë®Æ½×ø±ê( X) дÈëGDRAM if (num == 0)//Ê××Ö½Ú·´°×{Lcd_WriteData(0xff); //дÊý¾Ý¸ß°ËλLcd_WriteData(0x00); //дÊý¾ÝµÍ°Ëλ}//if (num == 0) endelse if (num == 1)//´Î×Ö½Ú·´°×{Lcd_WriteData(0x00); //дÊý¾Ý¸ß°ËλLcd_WriteData(0xff); //дÊý¾ÝµÍ°Ëλ }//else if (num == 1) end}//for(x=0; x<1; x++) end Lcd_WriteCmd(0x36); // Ñ¡Ôñ8 λÊý¾ÝÁ÷,À©³äÖ¸Áî, »æͼÏÔʾ¿ª}//for(y=0; y<16; y++) end Lcd_WriteCmd(0x30);
}/*----------------×Ö·´°×/»Ï»®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)) endLcd_WriteCmd(0x34);for(y=i; y<15; y++){for(x=0; x<1; x++){Lcd_WriteCmd(addr_y+y); // ÏȽ«´¹Ö±µÄλԪ×é×ø±ê( Y) дÈëGDRAMLcd_WriteCmd(addr_x+x); // ÔÙ½«Ë®Æ½×ø±ê( X) дÈëGDRAMLcd_WriteData(0xff); //дÊý¾Ý¸ß°ËλLcd_WriteData(0xff); //дÊý¾ÝµÍ°Ëλ} Lcd_WriteCmd(0x36); // Ñ¡Ôñ8 λÊý¾ÝÁ÷,À©³äÖ¸Áî, »æͼÏÔʾ¿ª}//for(y=0; y<16; y++) endLcd_WriteCmd(0x30);
}// * º¯ÊýÃû£ºLCD12864_Init
// * ÃèÊö £ºLCD12864³õʼ»¯
// * ÊäÈë £ºÎÞ
// * Êä³ö £ºÎÞ
// * µ÷Óà £ºÍⲿµ÷ÓÃ
// */
void LCD12864_Init(void)
{Lcd_GPIOConfigOut();Lcd_Init();SetLcdBLK; Lcd_ClearDRAM();Lcd_ClearGRAM();
}//1¡¢80-87
//2¡¢90-97
//3¡¢88-8f
//4¡¢98-9fvoid 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·´°×ÏÔʾ
#define LINE 1 //LCDµ¥×Ö½ÚÏ»®ÏßÏÔʾ#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 */LCD12864参考手册
这个网上一大堆，程序都是按照手册来写的，你可以去某个卖LCD12864的淘宝店，淘宝店页面就会分享有各种配套资料。
找不到的就私聊我
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