stm32_19264液晶LCD驱动程序

弄了两天，终于调通了stm32 LCD19264液晶驱动程序

系统采用stm32f103ze微处理器，3.3v供电

液晶为:深圳兴宇合公司的JBG19264E00-08W-A31 , 无字库,视角6:00

编译器为:MDK4.0

注意:若显示出现乱码的现象请适当修改延时函数

/****************************lcd.h********************************************/

#ifndef __LCD_H

#define __LCD_H

#include "sys.h"

#define LCD_RS PFout(0)// PF.0

#define LCD_E PFout(1)// PF.1

#define LCD_CS1 PFout(2)// PF.2

#define LCD_RST PFout(3)// PF.3

#define LCD_CS2 PFout(4)// PF.4

#define LCD_CS3 PFout(5)// PF.5

#define LCD_DATA(x) GPIOE->ODR=(GPIOB->ODR&0x807F)|((x & 0x00FF)<<7) //PE7~14,作为数据线

#define LCD_PAGE_ADDR 0xb8

#define LCD_COL_ADDR 0x40

void LCDPortSet(void); //LCD IO口配置

void LcdInit(void); //初始化程序

void LcdClear(void); //清屏程序

void WriteChr16x16(u8 pag,u8 col, u8 *chr); //写一个汉字

#endif

/******************************************************lcd.c************************************************/

#include <stm32f10x_lib.h>

#include "lcd.h"

#include "delay.h"

//LCD IO口配置

void LCDPortSet(void)

{

RCC->APB2ENR|=1<<6; //使能PORTE时钟

RCC->APB2ENR|=1<<7; //使能PORTF时钟

GPIOE->CRH&=0XF0000000;//PE8-14数据口

GPIOE->CRH|=0X03333333;

GPIOE->CRL&=0X0FFFFFFF;//PE7数据口

GPIOE->CRL|=0X30000000;

GPIOE->ODR|=0X7F80; //上拉

GPIOF->CRL&=0XF0000000;

GPIOF->CRL|=0X03333333; //PF.0 1 2 3 4 5 6推挽输出

GPIOF->ODR|=1<<0; //PF.0 输出高

GPIOF->ODR|=1<<1; //PF.1 输出高

GPIOF->ODR|=1<<2; //PF.2 输出高

GPIOF->ODR|=1<<3; //PF.3 输出高

GPIOF->ODR|=1<<4; //PF.4 输出高

GPIOF->ODR|=1<<5; //PF.5 输出高

GPIOF->ODR|=1<<6; //PF.6 输出高

}

void SelectChip1(void) //选择第1屏

{

LCD_CS1=0;

LCD_CS2=1;

LCD_CS3=1;

}

void SelectChip2(void) //选择第2屏

{

LCD_CS1=1;

LCD_CS2=0;

LCD_CS3=1;

}

void SelectChip3(void) //选择第3屏

{

LCD_CS1=1;

LCD_CS2=1;

LCD_CS3=0;

}

void WriteCommand(u8 cmd) //写命令

{

LCD_RS=0; //写命令

//RW=0;

LCD_DATA(cmd);

LCD_E=1;

delay_us(10);

LCD_E=0;

}

void WriteData(u8 dat) //写数据

{

LCD_RS=1;//写数据

//RW=0;

LCD_DATA(dat);//数据输出到数据口

LCD_E=1; //写入到LCD

delay_us(10);

LCD_E=0;

}

void LcdClear(void) //清屏

{

u16 j = 0;

u16 k = 0;

LCD_CS1 = 0;

LCD_CS2 = 0;

LCD_CS3 = 0;

WriteCommand(LCD_PAGE_ADDR + 0);

WriteCommand(LCD_COL_ADDR + 0);

for(k=0;k<8;k++)

{

WriteCommand(LCD_PAGE_ADDR+k);

for(j=0;j<64;j++)

{

WriteData(0x00);

}

LCD_CS1 = 1;

LCD_CS2 = 1;

LCD_CS3 = 1;

}

void LcdInit(void) //初始化程序

{

LCD_RST = 0;

delay_us(20);

LCD_RST = 1;

delay_us(5);

LCD_CS1=0;

LCD_CS2=0;

LCD_CS3=0;

WriteCommand(0x3f); //设置开显示命令

WriteCommand(0xc0);//设置起始位置

LCD_CS1 = 1;

LCD_CS2 = 1;

LCD_CS3 = 1;

LcdClear(); //清屏

}

void WriteChr16x16(u8 pag,u8 col,u8 *chr) //写一个汉字

{

u8 i = 0;

u8 j = 0;

u8 col_t = 0;

WriteCommand(0xc0);

col_t = col;

for(i=0;i<2;i++)

{

for(j=0;j<16;j++)

{

switch(col_t&0xc0)

{

case 0:

SelectChip1();

WriteCommand(LCD_PAGE_ADDR + pag + i);

WriteCommand(LCD_COL_ADDR + col_t - 0 );

WriteData(chr[16*i + j]);

col_t++;

break;

case 0x40:

SelectChip2();

WriteCommand(LCD_PAGE_ADDR + pag + i);

WriteCommand(LCD_COL_ADDR + col_t - 64);

WriteData(chr[16*i + j]);

col_t++;

break;

case 0x80:

SelectChip3();

WriteCommand(LCD_PAGE_ADDR + pag + i);

WriteCommand(LCD_COL_ADDR + col_t - 128);

WriteData(chr[16*i + j]);

col_t++;

break;

default: break;

}

col_t=col_t-16;

}

/***************************************************main.c******************************************************/

/**

@说明：JBG19264 LCD测试程序

#include <stm32f10x_lib.h>

#include "sys.h"

#include "delay.h"

#include "lcd.h"

u8 table[][32]={

/*-- 文字: 我 --*/