stm32驅動LCD12864液晶屏驅動程式，親測可行，複製直接能用！
阿新 • • 發佈：2018-12-21
廢話不多說，直接貼程式，你自己複製過去即可，免得我通過把工程上傳的方式，你下載還得需要c幣，這個現在很貴呀！！！
就兩個檔案，LCD12864.h和LCD12864.c，自己複製過去後，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），微控制器主頻：72MHZ
LCD12864.h如下所示
#ifndef __LCD12864_H #define __LCD12864_H #include "sys.h" #define LCD1602_RS PEout(0) // PE0 go define之後我們會發現，這個巨集最後就是在這個io的地址這裡賦值 // #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\我的微信二維碼.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埠時鐘 GPIO_InitStructure.GPIO_Pin = 0XFF; //PG埠配置 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推輓輸出 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度為50MHz GPIO_Init(GPIOG, &GPIO_InitStructure); //根據設定引數初始化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,埠配置 GPIO_Init(GPIOE, &GPIO_InitStructure); //根據設定引數初始化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埠配置 GPIO_Init(GPIOA, &GPIO_InitStructure); //根據設定引數初始化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埠配置 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推輓輸出 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //IO口速度為50MHz GPIO_Init(GPIOG, &GPIO_InitStructure); //根據設定引數初始化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埠配置 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //上拉輸入 GPIO_Init(GPIOG, &GPIO_InitStructure); //根據設定引數初始化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等於1表示液晶正忙，重複檢測直到其等於0為止 } /* 向LCD1602液晶寫入一位元組命令，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液晶寫入一位元組資料，dat-待寫入資料值 */ 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); } /* 設定顯示RAM起始地址，亦即游標位置，(x,y)-對應螢幕上的字元座標 */ 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; //那麼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，這裡所有所說的漢字為單位的意思是16*16 //由起始DDRAM地址連續寫入字串 //addr的值是所有的漢字後面的地址，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); //設定ram地址 } /* 在液晶上顯示字串，(x,y)-對應螢幕上的起始座標，str-字串指標 */ void LcdShowStr(unsigned char row, unsigned char column, unsigned char *str) { unsigned char n=0,a; unsigned char *fore_str; LcdSetCursor(column, row); //設定起始地址 while (*str != '\0') //連續寫入字串資料，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指向的資料，然後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位資料介面 LcdWriteCmd(0x0C); //顯示器開，游標關閉 LcdWriteCmd(0x06); //文字不動，地址自動+1 LcdWriteCmd(0x01); //清屏 } /* * 函式名：LcdShowImage * 描 述：在顯示屏上顯示一幅影象 * 輸 入：img - 待顯示影象指標 * x - 螢幕顯示橫座標(以畫素為單位) * y - 螢幕顯示縱座標(以畫素為單位) * w - 影象寬度(以畫素為單位) * h - 影象高度(以畫素為單位) * 輸 出：無 * 備 注：x與w必須是16的整數倍，因CGRAM最小定址單位為2位元組；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，那麼來說，是多少畫素高度，這裡就填多少 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++]); } } } /* * 函式名：LcdClearArea * 描 述：清除螢幕上的一塊圖形顯示區域 * 輸 入：x - 區域起始橫座標(以畫素為單位) * y - 區域起始縱座標(以畫素為單位) * w - 區域寬度(以畫素為單位) * h - 區域高度(以畫素為單位) * 輸 出：無 * 備 注：x與w必須是16的整數倍，因CGRAM最小定址單位為2位元組；y與h可為0-63的任意值。 */ //記住，繪圖模式時候螢幕預設有亂點顯示的資料的，需要我們先呼叫這個函式後面才能正常顯示 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 } } }
主函式main（）中這樣呼叫即可：
void main()
{
LCD12864IO_Init(void);
// 為什麼驅動函式會出現1602的字樣，因為這個LCD12864的驅動程式我是從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);
}程式完全o98k，拿去用吧！