基于某STM32LCD12864驱动程序

1、实用文档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

2、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_GPIO/ 默认 LCD12864 的数据 口时钟#define LCD_RS_1 LCD_CONTROL-BSR&=LCD_RS_Pin;LCD_C

3、ONTROL-BSRRLCD_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_CONT

4、ROL-BSR&=LCD_EN_Pin;LCD_CONTROL-BSR=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_F/h 复位脚拉高#define DATAOUT LCD_DATAPORT-ODR &=0xff00;LCD_DATAPOR

5、T-ODR/g 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(uint

6、8_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_Di

7、spString(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

8、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

9、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_Fl

10、ickerScreen(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

11、)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 尸 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=(uin

12、t16_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 尸 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_delayu

13、s(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+13) 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_

14、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;stri!=0;i+)LCD_WriteByte(stri);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 str12;uint32_t q;ui

15、nt16_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;i0;i-)q=1;j=1;/i=1时，q=1,得到个位for(;j=10000000)wei=8;else if(num=1000000)wei=7;else if(num=10000

16、0)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;i0;i-)q=1;j=1;/i=1时，q=1,得到个位for(;j0;i-)if(stri=0)&(stri=9) break;stri+2=0;/添加字符串结束符for(j=0;jdot;j+,i-)小数点后各位依次右移，准备插入stri+1=stri;stri+1=.;/插入小数点LCD_DispString(str); 显示浮点小数void LCD

17、_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_Dispn

18、um(uint32_t)year);LCD_DispChar(-);LCD_Dispnum(uint32_t)month);LCD_DispChar(-);LCD_Dispnum(uint32_t)day);if(month10)&(day10)/清除无效位置可能残留的显示 LCD_DispChar(); LCD_DispChar(); else if(month9)|(month9)&(day10) LCD_DispChar();LCD_Setpos(1,15);/if(enableclock) 如果开启闹铃，显示闹铃标志 / LCD_DispChar(); /else LCD_DispCh

19、ar(*); /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(hour10)&(min0)&(sec10) LCD_DispChar(); 用于消隐 LCD_Setpos(2,15); /if(ena

20、bleclock) / 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;i32;i+)/ 32 行LCD_Writecmd(0x80+i);LCD_delayus(150);LCD_Writecmd(0x80);LCD_delayus(150);for(j=0;j16;j+) 一行，16 个字节LCD_WriteByte(

21、picturej);LCD_delayus(150);LCD_delayus(150);for(i=0;i32;i+)/ 32 行LCD_Writecmd(0x80+i);LCD_delayus(150);LCD_Writecmd(0x80);LCD_delayus(150);for(j=0;j16;j+) / 一行，16 个字节LCD_WriteByte(picturej);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_ShiftLe

22、ft()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,uint1

23、6_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_H

24、CLK_Div1);RCC_PCLK1Config(RCC_HCLK_Div2); /fPCLK1=36MHzRCC_APB2PeriphClockCmd(LCD_CONTROL_CLOCK ENABLE 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5VGPIO_Init(LC

25、D_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

26、);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 s

27、tm32f10x.h#include LCD12864.h”extern const unsigned char picturel口；extern const unsigned char picture2口；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_AP