基于STM32--LCD12864驱动程序.doc

基于 STM32--LCD12864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_DATAPORTGPIOD//默认LCD12864的数据口在 PD口

#define LCD_RESET_PinGPIO_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_PinGPIO_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_1LCD_CONTROL->BSRR

&=~LCD_RS_Pin;LCD_CONTROL-

>BSRR |=LCD_RS_Pin //RS 置高电平

#define LCD_RS_0LCD_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_1LCD_CONTROL->BSRR &=~LCD_EN_Pin;LCD_CONTROL->BSRR

|=LCD_EN_Pin //EN 置高电平

#define LCD_EN_0LCD_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); //

n(us)

void LCD_delayms(unsigned long n); //

n(ms)

void LCD_WriteInitcmd(uint8_t initcmd); 延时延时//

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 LCD12864

void LCD_WriteByte(uint8_t byte); //写一字节数据到 LCD12864

void LCD_pos(uint16_t pos); //LCD显示位置设置

col);// void 设定 LCD12864的显示地址，根据习惯

LCD_DispChar(char ch); //显示一个字符

void

row,uint16_t

LCD_Setpos_DispChar(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_delayus(5);

flag=(uint16_t)LCD_BF;

}while(flag);

}

// 写命令到 LCD12864

void 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 LCD12864

void LCD_WriteByte(uint8_t byte)

{

LCD_WaitLaisure();

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

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

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'; //

for(j=0;j

小数点后各位依

次右移，准备插入{

}

str[i+1]='.';//

LCD_DispString(str);// 插入小数点显示浮点小数

}

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_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)&&(da

y<10)))

LCD_DispChar(' ');

LCD_Setpos(1,15);

//if(enableclock)//如果开启闹铃，显示闹铃标志

// LCD_DispChar('@');

//else

LCD_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('@');

//else

LCD_DispChar('*');//第二行结束符显示}

void LCD_DispPicture(const unsigned char picture[])

{

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);

}