就兩個文件，LCD12864.h和LCD12864.c，自己復制過去后，改一下引腳即可
（如果你連改引腳都不會，那你看來是初初學者，那你自己百度吧），單片機主頻：72MHZ
LCD12864.h如下所示
#ifndef __LCD12864_H
#define __LCD12864_H
#include "sys.h"
#define LCD1602_RS PEout(0) // PE0 go define之后我們會發現，這個宏最后就是在這個io的地址這里賦值
// #define MEM_ADDR(addr) *((volatile unsigned long *)(addr))
#define LCD1602_RW PEout(1) // PE1
#define LCD1602_E PAout(3) // PA3
void LCD12864IO_Init(void);
void LCD1602_DB_IO_outputMode(void);
void LCD1602_DB_IO_inputMode(void);
void write_LCD1602_DB(uint8_t data);
uint8_t read_LCD1602_DB(void);
void InitLcd1602(void);
void LcdShowStr(unsigned char row, unsigned char column, unsigned char *str);
void LcdWriteCmd(unsigned char cmd);
void LcdShowImage(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t *img);
void LcdClearArea(uint8_t x, uint8_t y, uint8_t w, uint8_t h);
//#ifndef _HE_
extern uint8_t HE[];
extern uint8_t QQ[];
extern uint8_t myVX[];
//#endif
#endif
LCD12864.c如下所示：
#include "lcd12864.h"
#include "delay.h"
//#define _HE_
uint8_t HE[]=
{
0x20,0x00,0x70,0x00,0x1E,0x00,0x10,0x3E,0x10,0x22,0xFF,0x22,0x10,0x22,0x18,0x22,0x38,0x22,0x54,0x22,0x54,0x22,0x12,0x22,0x11,0x3E,0x10,0x22,0x10,0x00,0x10,0x00/*"和",0*/
/* (16 X 16 , 宋體 )*/
};
uint8_t QQ[]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x0F,0xE0,0x3F,0xE0,0x7F,0xF0,0x7F,0xF8,0x7D,0xF0,0x3C,0xD0,0x2C,0x30,0x30,0x70,0x38,0xE0,0x1F,0x00,0x00,0x00,0x00/*"C:\Users\Administrator\Desktop\qqXiaoBing.bmp",0*/
/* (16 X 16 )*/
};
u8 myVX[]=
{
0x00,0x0D,0xFC,0xC8,0x0F,0x3F,0xB0,0x00,0x00,0x0D,0xFC,0xC8,0x0F,0x3F,0xB0,0x00,
0x3F,0xCC,0x7C,0x0F,0x93,0x26,0x33,0xFC,0x20,0xCD,0x80,0x31,0xF0,0x9F,0xB3,0x04,
0x20,0xCD,0x80,0x31,0xF0,0xDF,0xB3,0x04,0x20,0xCF,0xFF,0xC6,0x0C,0xD9,0xB3,0x04,
0x20,0xCF,0xFF,0xC6,0x0C,0x99,0xB3,0x04,0x20,0xCF,0x80,0xCE,0x1C,0xE1,0xB3,0x04,
0x20,0xCF,0xC0,0xCE,0x1C,0xE1,0x33,0x04,0x3F,0xCD,0xE0,0x30,0x00,0xC6,0x33,0xFC,
0x00,0x0D,0x9B,0x36,0x6C,0xD9,0xB0,0x00,0x00,0x0D,0x9B,0x36,0x6C,0xD9,0xB0,0x00,
0xFF,0xFD,0x9F,0xC9,0x83,0x9F,0xBF,0xFF,0xFF,0xFD,0x9F,0xC9,0x83,0x9F,0xBF,0xFF,
0xE0,0xCD,0xFC,0x07,0xF0,0x27,0xC0,0xE0,0x06,0x32,0x79,0xC6,0x33,0x39,0xBC,0x99,
0x06,0x32,0x7B,0xC6,0x13,0x39,0xBC,0x9B,0xF9,0x01,0x9E,0x0F,0x9C,0x18,0x33,0x64,
0xF9,0x01,0x9C,0x0F,0x9C,0x18,0x33,0x64,0x06,0xFC,0x63,0x08,0x73,0x18,0x33,0x1C,
0x06,0xFC,0x61,0x08,0x73,0x18,0x33,0x1C,0xD8,0x03,0x9F,0x01,0x8F,0xE7,0xF3,0xE3,
0xD8,0x03,0x9F,0x01,0x8F,0xE7,0xF3,0xE3,0xFE,0x31,0x98,0xC9,0xFC,0x87,0x8C,0x87,
0x1F,0x03,0x9F,0x35,0xEC,0x18,0x43,0x98,0x1F,0x03,0x9F,0x36,0xEC,0x18,0x43,0x98,
0xFE,0xF3,0xE0,0x7F,0xAC,0x39,0xB0,0xF8,0xFE,0xF3,0xE0,0xFF,0xDC,0x39,0xB0,0xF8,
0x3E,0xC3,0xFF,0xE6,0x5C,0xE6,0x70,0x60,0xF7,0xF3,0x6F,0xFD,0xCC,0x1F,0xBC,0x9F,
0xE7,0xF2,0x67,0xFE,0xFF,0x1F,0xBC,0x9F,0xC7,0xCE,0x7D,0xA1,0xFF,0x00,0x3C,0xE0,
0xC7,0xCE,0x7D,0x83,0xBB,0x80,0x3C,0xE0,0x3F,0x3E,0x1C,0x83,0xFF,0x99,0xFF,0xFB,
0x3F,0x3E,0x1C,0x43,0xFF,0x99,0xFF,0xFB,0x19,0x02,0x18,0x7F,0xFF,0xB8,0x40,0x07,
0x00,0xFC,0x79,0xF3,0xFF,0x39,0xFC,0x83,0x00,0xFC,0x7B,0xF1,0xFF,0x79,0xFC,0x83,
0xD9,0x00,0x04,0xF1,0xFF,0x18,0x0F,0xF8,0xD9,0x00,0x04,0xF1,0x83,0x18,0x0F,0xF8,
0x18,0xFC,0x19,0xF8,0x1F,0x39,0x80,0xFB,0x18,0xFC,0x19,0xF8,0x1F,0x39,0x80,0xFB,
0x27,0xCE,0x66,0x31,0xEC,0x07,0xC0,0x1C,0x38,0x30,0x07,0x0E,0x73,0xE0,0x3C,0x84,
0x38,0x30,0x07,0x0E,0x73,0xE0,0x3C,0x84,0x3E,0xC1,0x81,0xC1,0x83,0x00,0x7C,0xF8,
0x3E,0xC1,0x83,0xC1,0x83,0x00,0x7C,0xF8,0x21,0x31,0x99,0xF6,0x1C,0x3F,0xFC,0xF8,
0x21,0x31,0x9B,0xF6,0x1C,0x3F,0xFC,0xF8,0x39,0x0C,0x1B,0xC9,0x93,0x20,0x00,0x03,
0xFF,0xFC,0x03,0x0E,0x6F,0x61,0x1E,0x7F,0xFF,0xFC,0x03,0x0E,0x6F,0x21,0xBF,0x7F,
0x00,0x0F,0xE3,0xFF,0xFF,0x81,0xB3,0x18,0x00,0x0F,0xE3,0xFF,0xFF,0xC1,0xB3,0x18,
0x3F,0xCE,0x67,0x37,0x83,0xF8,0x3F,0x7B,0x3F,0xCE,0x67,0x37,0x83,0xF8,0x3E,0x79,
0x20,0xCC,0x1B,0x36,0x13,0x18,0x00,0x60,0x20,0xCD,0xE7,0x07,0xEF,0x86,0x30,0x07,
0x20,0xCD,0xE7,0x07,0xEF,0xC6,0x30,0x07,0x20,0xCC,0x7C,0xCE,0x63,0xC6,0x3C,0x9C,
0x20,0xCC,0x7C,0xCE,0x63,0xC6,0x3C,0x9C,0x3F,0xCE,0x67,0x39,0xEC,0xDE,0x0C,0xFC,
0x3F,0xCF,0x67,0x3D,0xE4,0x9E,0x0D,0xFC,0x00,0x0F,0xE4,0x3E,0x63,0x19,0xFF,0x80,/*"C:\Users\Administrator\Desktop\我的二維碼.bmp",0*/
/* (64 X 64 )*/
}
;
void LCD12864IO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOG|RCC_APB2Periph_GPIOE|RCC_APB2Periph_GPIOA, ENABLE);
//使能PG,PE,PA端口時鐘
GPIO_InitStructure.GPIO_Pin = 0XFF; //PG端口配置
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽輸出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度為50MHz
GPIO_Init(GPIOG, &GPIO_InitStructure); //根據設定參數初始化GPIOG.0
GPIO_SetBits(GPIOG,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7); //PG.0 輸出高
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1; //PE.0,PE.1,端口配置
GPIO_Init(GPIOE, &GPIO_InitStructure); //根據設定參數初始化GPIOE.0.1
GPIO_SetBits(GPIOE,GPIO_Pin_0|GPIO_Pin_1); //PE.0.1 輸出高
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3; //PA3端口配置
GPIO_Init(GPIOA, &GPIO_InitStructure); //根據設定參數初始化GPIOPA3
GPIO_SetBits(GPIOA,GPIO_Pin_3); //PA3 輸出高
}
void LCD1602_DB_IO_outputMode(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = 0XFF; //PG端口配置
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽輸出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度為50MHz
GPIO_Init(GPIOG, &GPIO_InitStructure); //根據設定參數初始化GPIOG.0
GPIO_SetBits(GPIOG,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7); //PG.0 輸出高
}
void LCD1602_DB_IO_inputMode(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = 0XFF; //PG端口配置
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //上拉輸入
GPIO_Init(GPIOG, &GPIO_InitStructure); //根據設定參數初始化GPIOG.0
GPIO_SetBits(GPIOG,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7); //PG.0 輸出高
}
void write_LCD1602_DB(uint8_t data)
{
GPIO_Write(GPIOG,(uint16_t)data);
}
uint8_t read_LCD1602_DB(void)
{
uint8_t value;
value=(uint8_t)GPIO_ReadInputData(GPIOG);
return value;
}
/* 等待液晶準備好 */
void LcdWaitReady()
{
unsigned char sta;
delay_us(1);
LCD1602_RS = 0;
delay_us(1);
LCD1602_RW = 1;
delay_us(1);
do {
LCD1602_E = 1;
delay_us(1);
LCD1602_DB_IO_inputMode();
sta = read_LCD1602_DB();
LCD1602_DB_IO_outputMode();
delay_us(1);
LCD1602_E = 0;
delay_us(1);
} while (sta & 0x80); //bit7等于1表示液晶正忙，重復檢測直到其等于0為止
}
/* 向LCD1602液晶寫入一字節命令，cmd-待寫入命令值 */
void LcdWriteCmd(unsigned char cmd)
{
delay_us(1);
LcdWaitReady();
delay_us(1);
LCD1602_RS = 0;
delay_us(1);
LCD1602_RW = 0;
delay_us(1);
write_LCD1602_DB(cmd);
delay_us(1);
LCD1602_E = 1;
delay_us(1);
LCD1602_E = 0;
delay_us(1);
}
/* 向LCD1602液晶寫入一字節數據，dat-待寫入數據值 */
void LcdWriteDat(unsigned char dat)
{
delay_us(1);
LcdWaitReady();
delay_us(1);
LCD1602_RS = 1;
delay_us(1);
LCD1602_RW = 0;
delay_us(1);
write_LCD1602_DB(dat);
delay_us(1);
LCD1602_E = 1;
delay_us(1);
LCD1602_E = 0;
delay_us(1);
}
/* 設置顯示RAM起始地址，亦即光標位置，(x,y)-對應屏幕上的字符坐標 */
void LcdSetCursor(unsigned char x, unsigned char y)
{
unsigned char addr;
if (y >= 2) //說明我們想顯示在右半屏
{
y -= 2;
x += 8; //那么x就得往右挪動8個漢字了
}
addr = y*16 + x; //現在這個是以一個漢字為單位，這里所有所說的漢字為單位的意思是16*16
//由起始DDRAM地址連續寫入字符串
//addr的值是所有的漢字后面的地址，也是漢字為單位，即ddram也是以漢字為單位的
LcdWriteCmd(0x30); //啟動DDRAM操作
LcdWriteCmd(0x80|addr); //設置ram地址
}
/* 在液晶上顯示字符串，(x,y)-對應屏幕上的起始坐標，str-字符串指針 */
void LcdShowStr(unsigned char row, unsigned char column, unsigned char *str)
{
unsigned char n=0,a;
unsigned char *fore_str;
LcdSetCursor(column, row); //設置起始地址
while (*str != '\0') //連續寫入字符串數據，直到檢測到結束符
{
if((n+1)%2==0) //奇數地址
{
fore_str=str-1;
if(*fore_str>0x80)
{
LcdWriteDat(*str++);
}
else if(*str>0x80)
LcdWriteDat(' ');
else if(*str<=0x80)
LcdWriteDat(*str++);
}
else
LcdWriteDat(*str++); //先取str指向的數據，然后str自加1
n++;
if((n+2*column)%16==0)
{
a=(n+2*column)/16;
if(row==0)
{
if(a==1)
LcdWriteCmd(0x90);
if(a==2)
LcdWriteCmd(0x88);
if(a==3)
LcdWriteCmd(0x98);
if(a==4)
LcdWriteCmd(0x80);
}
if(row==1)
{
if(a==1)
LcdWriteCmd(0x88);
if(a==2)
LcdWriteCmd(0x98);
if(a==3)
LcdWriteCmd(0x80);
if(a==4)
LcdWriteCmd(0x90);
}
if(row==2)
{
if(a==1)
LcdWriteCmd(0x98);
if(a==2)
LcdWriteCmd(0x80);
if(a==3)
LcdWriteCmd(0x90);
if(a==4)
LcdWriteCmd(0x88);
}
if(row==3)
{
if(a==1)
LcdWriteCmd(0x80);
if(a==2)
LcdWriteCmd(0x90);
if(a==3)
LcdWriteCmd(0x88);
if(a==4)
LcdWriteCmd(0x98);
}
}
}
}/* 初始化1602液晶 */
void InitLcd1602()
{
LcdWriteCmd(0x38); //16*2顯示，5*7點陣，8位數據接口
LcdWriteCmd(0x0C); //顯示器開，光標關閉
LcdWriteCmd(0x06); //文字不動，地址自動+1
LcdWriteCmd(0x01); //清屏
}
/*
* 函數名：LcdShowImage
* 描 述：在顯示屏上顯示一幅圖像
* 輸 入：img - 待顯示圖像指針
* x - 屏幕顯示橫坐標(以像素為單位)
* y - 屏幕顯示縱坐標(以像素為單位)
* w - 圖像寬度(以像素為單位)
* h - 圖像高度(以像素為單位)
* 輸 出：無
* 備 注：x與w必須是16的整數倍，因CGRAM最小尋址單位為2字節；y與h可為0-63的任意值。
*/
//經過我的不斷測試，y和h的值也是可以取到64，而且顯示漢字，也得取到16而不是15，那么來說，是多少像素高度，這里就填多少
void LcdShowImage(uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t *img)
{
uint16_t i;
uint8_t xi,yi;
uint8_t xt,yt;
x >>= 4;
w >>= 3;
i = 0;
LcdWriteCmd(0x36); //啟動CGRAM操作
for (yi=0; yi<h; yi++)
{
yt = y+yi;
xt = x;
if (yt >= 32)
{
yt -= 32;
xt += 8;
}
LcdWriteCmd(0x80|yt);
LcdWriteCmd(0x80|xt);
for (xi=0; xi<w; xi++)
{
LcdWriteDat(img[i++]);
}
}
}
/*
* 函數名：LcdClearArea
* 描 述：清除屏幕上的一塊圖形顯示區域
* 輸 入：x - 區域起始橫坐標(以像素為單位)
* y - 區域起始縱坐標(以像素為單位)
* w - 區域寬度(以像素為單位)
* h - 區域高度(以像素為單位)
* 輸 出：無
* 備 注：x與w必須是16的整數倍，因CGRAM最小尋址單位為2字節；y與h可為0-63的任意值。
*/
//記住，繪圖模式時候屏幕默認有亂點顯示的數據的，需要我們先調用這個函數后面才能正常顯示
void LcdClearArea(uint8_t x, uint8_t y, uint8_t w, uint8_t h)
{
uint8_t xi,yi;
uint8_t xt,yt;
x >>= 4;
w >>= 3;
LcdWriteCmd(0x36); //啟動CGRAM操作
for (yi=0; yi<h; yi++)
{
yt = y+yi;
xt = x;
if (yt >= 32)
{
yt -= 32;
xt += 8;
}
LcdWriteCmd(0x80|yt);
LcdWriteCmd(0x80|xt);
for (xi=0; xi<w; xi++)
{
LcdWriteDat(0x00); //寫入0x00以清除顯示
}
}
}
主函數main（）中這樣調用即可：
void main()
{
LCD12864IO_Init(void);
// 為什么驅動函數會出現1602的字樣，因為這個LCD12864的驅動程序我是從1602液晶屏移植過來的，
// 只是忘記改了名字而已，就這樣吧
InitLcd1602(void);
LcdShowStr(1,1,"hello 你好");
while(1);
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