基于某STM32LCD12864驱动程序

STM32 LCD12864驱动程序（头文件）(2012-05-29 21:25:08)转载▼标签：杂谈#ifndef LCD12864_H#define LCD12864_H#define LCD_CONTROL GPIOD //默认LCD12864的控制口在PD口#define LCD_DATAPORT GPIOD //默认LCD12864的数据口在PD口#define LCD_RESET_Pin GPIO_Pin_12 //默认LCD12864的复位引脚连接到PD.12 也可不用#define LCD_RS_Pin GPIO_Pin_13 //默认LCD12864 RS -- PD.13#define LCD_RW_Pin GPIO_Pin_14 //默认LCD12864 RW -- PD.14#define LCD_EN_Pin GPIO_Pin_15 //默认LCD12864 E -- PD.15#define LCD_CONTROL_CLOCK RCC_APB2Periph_GPIOD //默认LCD12864的控制口时钟#define LCD_DATAPORT_CLOCK RCC_APB2Periph_GPIOD //默认LCD12864的数据口时钟#define LCD_RS_1 LCD_CONTROL->BSRR &=~LCD_RS_Pin;LCD_CONTROL->BSRR |=LCD_RS_Pin //RS置高电平#define LCD_RS_0 LCD_CONTROL->BRR &=~LCD_RS_Pin;LCD_CONTROL->BRR |=LCD_RS_Pin //RS置低电平#define LCD_RW_1 LCD_CONTROL->BSRR &=~LCD_RW_Pin;LCD_CONTROL->BSRR |=LCD_RW_Pin //RW置高电平#define LCD_RW_0 LCD_CONTROL->BRR &=~LCD_RW_Pin;LCD_CONTROL->BRR |=LCD_RW_Pin //RW置低电平#define LCD_EN_1 LCD_CONTROL->BSRR &=~LCD_EN_Pin;LCD_CONTROL->BSRR |=LCD_EN_Pin //EN置高电平#define LCD_EN_0 LCD_CONTROL->BRR &=~LCD_EN_Pin;LCD_CONTROL->BRR |=LCD_EN_Pin //EN置低电平#define LCD_RESET_0 LCD_CONTROL->BRR = LCD_RESET_Pin // 复位#define LCD_RESET_1 LCD_CONTROL->BSRR = LCD_RESET_Pin // 复位脚拉高#define DATAOUT LCD_DATAPORT->ODR &=0xff00;LCD_DATAPORT->ODR // 数据输出寄存器#define DATAIN LCD_DATAPORT->IDR // 数据输入寄存器#define LCD_BF ((DATAIN)& 0x0080) // 忙状态void LCD_delayus(unsigned long n); //延时n(us)void LCD_delayms(unsigned long n); //延时n(ms)void LCD_WriteInitcmd(uint8_t initcmd); //写初始化命令void LCD_WaitLaisure(void); //一直等待到LCD内部操作完成，变为空闲状态void LCD_Writecmd(uint8_t cmd); //写命令到LCD12864void LCD_WriteByte(uint8_t byte); //写一字节数据到LCD12864void LCD_pos(uint16_t pos); //LCD显示位置设置void LCD_Setpos(uint16_t row,uint16_t col);//设定LCD12864的显示地址，根据习惯void LCD_DispChar(char ch); //显示一个字符void LCD_Setpos_DispChar(uint16_t row,uint16_t col,char ch);//在指定位置显示一个字符void LCD_DispString(char str[]); //显示一个字符串，显示位置需提前设定//在指定位置显示一个字符串void LCD_Setpos_DispString(uint16_t row,uint16_t col,char str[]);void LCD_Dispnum(uint32_t num); //显示一个不超过8位的整数，显示位置需提前设置//在指定位置显示一个不超过8位的整数void LCD_Setpos_Dispnum(uint16_t row,uint16_t col,uint32_t num);void LCD_DispDecimal(uint32_t num,uint16_t dot);//显示一个有效位不超过8位的浮点数,显示位置需要提前设定//在指定位置显示一个有效位不超过8位的浮点数void LCD_Setpos_DispDecimal(uint16_t row,uint16_t col,uint32_t num,uint16_t dot);//显示日历，显示日期与时间void LCD_DispDateTime(uint32_t year,uint16_t month,uint16_t day,uint16_t hour,uint16_t min,uint16_t sec);void LCD_DispPicture(const unsigned char picture[]); //显示一幅图像128*64//屏幕整体左移一格，用于滚动显示void LCD_ShiftLeft(void);//屏幕整体右移一格，用于滚动显示void LCD_ShiftRight(void);//清屏，清除显示void LCD_Clear(void);//使光标还回原点位置void LCD_Return(void);//关显示void LCD_Close(void);//开显示void LCD_Open(void);void LCD_FlickerChar(uint16_t row,uint16_t col);//关闭字符闪烁void LCD_CloseFlicker(void);//屏幕秒闪烁一次void LCD_FlickerScreen(void);void LCD_PORT_Init(void); //LCD连接端口初始化void LCD_Init(void); //LCD配置初始化#endif#include "stm32f10x.h"#include "stm32f10x_gpio.h"#include "LCD12864.h"#include "picture.h"//延时n(us)void LCD_delayus(unsigned long n){unsigned long j;while(n--){ j=8;while(j--);}}//延时n(ms)void LCD_delayms(unsigned long n){while(n--)LCD_delayus(1100);}//写初始化命令void LCD_WriteInitcmd(uint8_t initcmd){LCD_RS_0;LCD_RW_0;LCD_EN_1;DATAOUT |= initcmd;LCD_delayus(600);LCD_EN_0;LCD_RW_1;}//一直等待到LCD内部操作完成，变为空闲状态void LCD_WaitLaisure(void){uint16_t flag=0x00;LCD_RS_0;LCD_RW_1;do{LCD_EN_0;LCD_delayus(5);LCD_EN_1;LCD_delayus(5);flag=(uint16_t)LCD_BF;}while(flag);}//写命令到LCD12864void LCD_Writecmd(uint8_t cmd){LCD_WaitLaisure();LCD_RS_0;LCD_RW_0;LCD_EN_1;DATAOUT |= cmd;LCD_delayus(600); //经过测试，取600。

550都不可以LCD_EN_0;LCD_RW_1;}//写一字节数据到LCD12864void LCD_WriteByte(uint8_t byte){LCD_WaitLaisure();LCD_RS_1;LCD_RW_0;LCD_EN_1;DATAOUT |= byte;LCD_delayus(600);LCD_EN_0;LCD_RW_1;}void LCD_pos(uint16_t pos){LCD_Writecmd(pos);}void LCD_Setpos(uint16_t row,uint16_t col){uint16_t pos=0x00;if(row+1>3) pos=0x08;if(row & 0x01) pos |= 0x80;else pos |= 0x90;pos += col-1;LCD_Writecmd(pos);}void LCD_DispChar(char ch){LCD_WriteByte(ch);}void LCD_Setpos_DispChar(uint16_t row,uint16_t col,char ch) {LCD_Setpos(row,col);LCD_WriteByte(ch);}void LCD_DispString(char str[]){uint16_t i;for(i=0;str[i]!='\0';i++){LCD_WriteByte(str[i]);}}void LCD_Setpos_DispString(uint16_t row,uint16_t col,char str[]) {LCD_Setpos(row,col);LCD_DispString(str);}void LCD_Dispnum(uint32_t num){char str[12];uint32_t q;uint16_t wei,i,j,k;if(num>=10000000)wei=8;else if(num>=1000000)wei=7;else if(num>=100000)wei=6;else if(num>=10000)wei=5;else if(num>=1000) wei=4;else if(num>=100)wei=3;else if(num>=10) wei=2;else wei=1;k=0;for(i=wei;i>0;i--){ q=1;j=1; //i=1时，q=1,得到个位for(;j<i;j++)q *=10;str[k++]=num/q +'0';num %= q;}str[k] = '\0'; //添加字符串结束标志LCD_DispString(str);//显示字符串}void LCD_Setpos_Dispnum(uint16_t row,uint16_t col,uint32_t num) {LCD_Setpos(row,col);LCD_Dispnum(num);}void LCD_DispDecimal(uint32_t num,uint16_t dot){uint32_t i=0,j,k=0,wei;uint32_t q;char str[10];if(num>=10000000)wei=8;else if(num>=1000000)wei=7;else if(num>=100000)wei=6;else if(num>=10000)wei=5;else if(num>=1000) wei=4;else if(num>=100)wei=3;else if(num>=10) wei=2;else wei=1;for(i=wei;i>0;i--){ q=1;j=1; //i=1时，q=1,得到个位for(;j<i;j++)q *=10;str[k++]=num/q +'0';num %= q;}str[k] = '\0'; //添加字符串结束标志for(i=8;i>0;i--){ if((str[i]>='0')&&(str[i]<='9')) break;}str[i+2]='\0'; //添加字符串结束符for(j=0;j<dot;j++,i--)//小数点后各位依次右移，准备插入{str[i+1]=str[i];}str[i+1]='.'; //插入小数点LCD_DispString(str);//显示浮点小数}void LCD_Setpos_DispDecimal(uint16_t row,uint16_t col,uint32_t num,uint16_t dot){LCD_Setpos(row,col);LCD_DispDecimal(num,dot);}void LCD_DispDateTime(uint32_t year,uint16_t month,uint16_t day,uint16_t hour,uint16_t min,uint16_t sec){//extern uint16_t enableclock;LCD_Setpos(1,0);LCD_DispString("Date:");LCD_Dispnum((uint32_t)year);LCD_DispChar('-');LCD_Dispnum((uint32_t)month);LCD_DispChar('-');LCD_Dispnum((uint32_t)day);if((month<10)&&(day<10)) //清除无效位置可能残留的显示{LCD_DispChar(' ');LCD_DispChar(' ');}else if(((month<10)&&(day>9))||((month>9)&&(day<10)))LCD_DispChar(' ');LCD_Setpos(1,15);//if(enableclock) //如果开启闹铃，显示闹铃标志// LCD_DispChar('@');//elseLCD_DispChar('*'); //第一行结束符显示LCD_Setpos(2,0);LCD_DispString("Time:");LCD_Dispnum((uint32_t)hour);LCD_DispChar(':');LCD_Dispnum((uint32_t)min);LCD_DispChar(':');LCD_Dispnum((uint32_t)sec);if(sec==0) LCD_DispChar('0');LCD_DispChar(' ');LCD_DispChar(' ');if((hour<10)&&(min<10)&&(sec>0)&&(sec<10))LCD_DispChar(' '); //用于消隐LCD_Setpos(2,15);//if(enableclock)// LCD_DispChar('@');//elseLCD_DispChar('*');//第二行结束符显示}void LCD_DispPicture(const unsigned char picture[]) {uint16_t i,j;LCD_Writecmd(0x34); //写数据时,关闭图形显示LCD_delayms(20);for(i=0;i<32;i++) //32行{LCD_Writecmd(0x80+i);LCD_delayus(150);LCD_Writecmd(0x80);LCD_delayus(150);for(j=0;j<16;j++) //一行，16个字节{LCD_WriteByte(picture[j]);LCD_delayus(150);}LCD_delayus(150);}for(i=0;i<32;i++) //32行{LCD_Writecmd(0x80+i);LCD_delayus(150);LCD_Writecmd(0x80);LCD_delayus(150);for(j=0;j<16;j++) //一行，16个字节{LCD_WriteByte(picture[j]);LCD_delayus(150);}LCD_delayus(150);}LCD_Writecmd(0x36); //写完数据,开图形显示LCD_delayms(50);}//屏幕整体左移一格，用于滚动显示void LCD_ShiftLeft(){LCD_Writecmd(0x18);}//屏幕整体右移一格，用于滚动显示void LCD_ShiftRight(void){LCD_Writecmd(0x1C);}//清屏，清除显示void LCD_Clear(void){LCD_Writecmd(0x01);}//使光标还回原点位置void LCD_Return(void){LCD_Writecmd(0x02);}//关显示void LCD_Close(void){LCD_Writecmd(0x08);}//开显示void LCD_Open(void){LCD_Writecmd(0x0C);}void LCD_FlickerChar(uint16_t row,uint16_t col) {LCD_Writecmd(0x0D);LCD_Setpos(row,col);}//关闭字符闪烁void LCD_CloseFlicker(void){LCD_Writecmd(0x0C);}//屏幕秒闪烁一次void LCD_FlickerScreen(void){LCD_Writecmd(0x08);//关显示LCD_delayms(500);LCD_Writecmd(0x0C);//开显示LCD_delayms(500);}//LCD连接端口初始化void LCD_PORT_Init(void){GPIO_InitTypeDef LCD_port;RCC_PCLK2Config(RCC_HCLK_Div1);RCC_PCLK1Config(RCC_HCLK_Div2); //fPCLK1=36MHzRCC_APB2PeriphClockCmd(LCD_CONTROL_CLOCK ,ENABLE); //时钟使能RCC_APB2PeriphClockCmd(LCD_DATAPORT_CLOCK ,ENABLE);LCD_port.GPIO_Pin = (uint16_t)0x00ff;LCD_port.GPIO_Speed= GPIO_Speed_50MHz;LCD_port.GPIO_Mode = GPIO_Mode_Out_OD;//OD开路输出，外接上拉电阻到5V GPIO_Init(LCD_DATAPORT,&LCD_port);LCD_port.GPIO_Pin = LCD_RESET_Pin | LCD_RS_Pin | LCD_RW_Pin | LCD_EN_Pin; LCD_port.GPIO_Speed= GPIO_Speed_50MHz;LCD_port.GPIO_Mode = GPIO_Mode_Out_OD;//OD开路输出GPIO_Init(LCD_CONTROL,&LCD_port);}void LCD_Init(void){LCD_RESET_0;LCD_delayms(300); //复位LCD12864LCD_RESET_1;LCD_delayms(300);LCD_Writecmd(0x34); //写数据时,关闭图形显示LCD_delayus(400);LCD_WriteInitcmd(0x38); //并行，8位，基本指令操作LCD_delayus(200); //150LCD_WriteInitcmd(0x38);LCD_delayus(100);LCD_WriteInitcmd(0x0C); //开显示，显示光标，用于测试LCD_delayus(150);LCD_WriteInitcmd(0x01); //清屏LCD_delayms(12);LCD_Writecmd(0x06); //地址自动增加LCD_delayus(150);}#include "stm32f10x.h"#include "LCD12864.h"extern const unsigned char picture1[];extern const unsigned char picture2[];void GPIO_Configuration(void);//延时n usvoid delay_nus(unsigned long n){unsigned long j;while(n--){ j=8;while(j--);}}//延时n msvoid delay_nms(unsigned long n){while(n--)delay_nus(1100);}//时钟配置函数72MHz 端口配置void RCC_Configuration(){RCC_PCLK2Config(RCC_HCLK_Div1);RCC_PCLK1Config(RCC_HCLK_Div2); //fPCLK1=36MHz//RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC|\// RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE,ENABLE);}int main(void){//uint16_t i;//char str1[]={"Happy everyday!"};//char str2[]={"天天向上"};RCC_Configuration();LCD_PORT_Init();LCD_Init();//LCD_Writecmd(0x90);//LCD_WriteByte('a');//delay_nms(10); //至少延时1usLCD_Setpos_DispString(1,3,"好好学习");delay_nms(10); //至少延时1usLCD_Setpos_DispString(3,3,"天天向上");delay_nms(300);LCD_FlickerChar(3,3);//LCD_Setpos_DispString(2,1,"天天sr向上");//delay_nms(2000);//LCD_Setpos_Dispnum(3,1,12345678);//LCD_Setpos_Dispnum(4,1,12345678);//LCD_Setpos_DispDecimal(4,1,1234567,6);//delay_nms(1); //必要的延时//LCD_Setpos_DispString(3,1,"Have a good time!"); //delay_nms(1); //必要的延时//LCD_Setpos_DispString(4,1,"天天向上天天向上");//LCD_Setpos_DispString(3,1,"进步每一天!");//LCD_Setpos_DispString(3,1,"Happy everyday！"); //LCD_Setpos_DispString(4,1,"认真学习STM32"); //LCD_Setpos_DispString(2,2,str1);//LCD_DispPicture(picture1);//LCD_WriteByte('d');//LCD_WriteByte('e');//delay_nms(1000);while (1){};}。