📄 main.c
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/*******************************************
文件：YJ12864.C
环境：编译为ICC AVR6.25A，仿真为AVR Studio4.10
硬件：ATMEGA16芯片
日期：2006年12月10日
功能：驱动开发板上的12864液晶
备注：参考《AVR系列单片机C语言编程与应用实例》（清华大学出版社）
/******************************************/
#include "iom16v.h" //包含型号头文件
#include "macros.h" //包含"位"操作头文件
#include "stdio.h" //标准输入输出头文件
#include "AVR_PQ1A.h"//包含自定义常量头文件
#pragma data:code //以下是字模工具取出的图片数组
const uchar GDRAM[1024]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x7F,0xFF,0xC0,0xFF,0xFF,0x80,0xFF,0xFF,0x80,0xFF,0xFF,0x83,0xFF,0xFE,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x40,0x00,0x40,0x80,0x00,0x80,0x80,0x00,0x80,0x80,0x00,0x82,0x00,0x02,0x04,
0x20,0x7F,0xFF,0xC0,0xFF,0xFF,0x80,0xFF,0xFF,0x80,0xFF,0xFF,0x83,0xFF,0xFE,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x2F,0xFF,0xFF,0xFF,0xC1,0xF8,0x7F,0xBF,0xC1,0xE3,0x9C,0x00,0x78,0x1E,0x3F,0xC4,
0x26,0xD9,0xB6,0x6D,0x80,0x60,0x33,0x1B,0x63,0x31,0x8C,0x00,0xCC,0x33,0x1B,0x64,
0x26,0xD9,0xB6,0x6D,0x80,0x60,0x1E,0x1B,0x66,0x31,0x8C,0x01,0x8C,0x61,0x9B,0x64,
0x27,0xF9,0xFE,0x7F,0x80,0x60,0x0C,0x1B,0x66,0x01,0x8C,0x01,0x80,0x61,0x9B,0x64,
0x27,0xF9,0xFE,0x7F,0x80,0x60,0x1E,0x1B,0x66,0x01,0x8C,0x01,0x80,0x61,0x9B,0x64,
0x23,0x30,0xCC,0x33,0x1C,0x6C,0x33,0x1B,0x63,0x31,0x9C,0x70,0xCC,0x33,0x1B,0x64,
0x23,0x30,0xCC,0x33,0x1C,0x78,0x7F,0xBF,0xF1,0xE0,0xFC,0x70,0x78,0x1E,0x3F,0xF4,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
#pragma data:data
/*******************************************
函数名称: LCD12864_portini
功 能: 初始化12864液晶用到的IO口
参 数: 无
返回值 : 无
/********************************************/
void LCD12864_portini(void)
{
LCDb_CTRL_DDR |= BIT(LCDb_RS)|BIT(LCDb_RW)|BIT(LCDb_E)|BIT(LCDb_RST);//配置控制管脚为输出
LCDb_DATA_DDR |= 0xFF; //配置数据管脚为输出
LCDb_SET_RST; //不使能复位端
}
/*******************************************
函数名称: LCD12864_readbyte
功 能: 从12864液晶读出一个字节数据或者指令
参 数: DatCmd--为iDat时是数据，为iCmd时是指令
返回值 : dByte--读回的数据或者指令
/********************************************/
uchar LCD12864_readbyte(uchar DatCmd)
{
uchar dByte;
if (DatCmd == iCmd) //指令操作
LCDb_CLR_RS;
else
LCDb_SET_RS;
LCDb_SET_RW; //读操作
LCDb_SET_E;
LCDb_DATA_DDR=0x00; //数据总线定义为输入
dByte=LCDb_DI; //读数据或者指令
Delayms(1); //时序调整
LCDb_CLR_E;
LCDb_DATA_DDR|=0xff; //数据总线还原为输出
return dByte;
}
/*******************************************
函数名称: LCD12864_sendbyte
功 能: 向12864液晶写入一个字节数据或者指令
参 数: DatCmd--为iDat时是数据，为iCmd时是指令
dByte--为写入12864的数据或者指令
返回值 : 无
/********************************************/
void LCD12864_sendbyte(uchar DatCmd, uchar dByte)
{
if (DatCmd == iCmd) //指令操作
LCDb_CLR_RS;
else
LCDb_SET_RS;
LCDb_CLR_RW; //写操作
LCDb_SET_E;
LCDb_DO = dByte; //写入数据
Delayus(100);
LCDb_CLR_E;
}
/*******************************************
函数名称: LCD12864_sendstr
功 能: 向12864液晶写入一个字符串
参 数: ptString--字符串指针
返回值 : 无
/********************************************/
void LCD12864_sendstr(uchar *ptString)
{
while((*ptString)!='\0') //字符串未结束一直写
{
LCD12864_sendbyte(iDat, *ptString++);
}
}
/*******************************************
函数名称: LCD12864_clear
功 能: 12864液晶清屏
参 数: 无
返回值 : 无
/********************************************/
void LCD12864_clear(void)
{
LCD12864_sendbyte(iCmd,LCDb_CLS);
Delayms(2);// 清屏指令写入后，2ms 的延时是很必要的!!!
}
/*******************************************
函数名称: LCD12864_readBF
功 能: 12864液晶清屏
参 数: 无
返回值 : busy--为1时忙，为0时可以接收指令
/********************************************/
uchar LCD12864_readBF(void)
{
uchar busy;
busy=LCD12864_readbyte(iCmd); //读回BF标志和地址
if(busy&0x80) //如果忙，返回忙状态
busy=1;
else //不忙，可以写入
busy=0;
return busy;
}
/*******************************************
函数名称: LCD12864_gotoXY
功 能: 移动到指定位置
参 数: Row--指定的行
Col--指定的列
返回值 : 无
/********************************************/
void LCD12864_gotoXY(uchar Row, uchar Col)
{
switch (Row) //选择行
{
case 2:
LCD12864_sendbyte(iCmd, LCDb_L2 + Col); break; //写入第2行的指定列
case 3:
LCD12864_sendbyte(iCmd, LCDb_L3 + Col); break; //写入第3行的指定列
case 4:
LCD12864_sendbyte(iCmd, LCDb_L4 + Col); break; //写入第4行的指定列
default:
LCD12864_sendbyte(iCmd, LCDb_L1 + Col); break; //写入第1行的指定列
}
}
/*******************************************
函数名称: LCD12864_initial
功 能: 12864液晶初始化
参 数: 无
返回值 : 无
/********************************************/
void LCD12864_initial(void)
{
Delayms(100); // 等待内部复位
LCD12864_portini(); //端口初始化
LCD12864_sendbyte(iCmd, LCDb_FUNCTION); //功能、模式设定
while(LCD12864_readBF());
LCD12864_sendbyte(iCmd, LCDb_ON); //打开显示
while(LCD12864_readBF());
LCD12864_clear(); //清屏
while(LCD12864_readBF());
LCD12864_sendbyte(iCmd, LCDb_ENTRY); // 输入模式设定
}
/*******************************************
函数名称: LCD12864_opGDRAM
功 能: 向GDRAM写入数据,并显示（完成绘图功能）
参 数: ptGDRAM--GDRAM数据指针
返回值 : 无
/********************************************/
void LCD12864_opGDRAM(const uchar *ptGDRAM)
{
uchar i,j;
uint x=0;
while(LCD12864_readBF()); //读忙标志
LCD12864_sendbyte(iCmd,LCDb_EXTCMD1); //扩充指令集，并关闭绘图显示
//写入并显示上半屏幕
for(i=0;i<32;i++) //行地址计数
{
for(j=0;j<8;j++) //列地址计数
{
LCD12864_sendbyte(iCmd,0x80|i);//输入行地址
Delayus(10);
LCD12864_sendbyte(iCmd,0x80|j);//输入列地址
Delayus(10);
LCD12864_sendbyte(iDat,ptGDRAM[x++]); //输入高位字节数据
Delayus(10);
LCD12864_sendbyte(iDat,ptGDRAM[x++]); //输入低位字节数据
Delayus(10);
}
}
//写入并显示下半屏幕
for(i=0;i<32;i++)
{
for(j=8;j<16;j++)
{
LCD12864_sendbyte(iCmd,0x80|i);//输入行地址
Delayus(10);
LCD12864_sendbyte(iCmd,0x80|j);//输入列地址
Delayus(10);
LCD12864_sendbyte(iDat,ptGDRAM[x++]); //输入高位字节数据
Delayus(10);
LCD12864_sendbyte(iDat,ptGDRAM[x++]); //输入低位字节数据
Delayus(10);
}
}
Delayus(10);
LCD12864_sendbyte(iCmd,LCDb_EXTCMD2); //打开绘图显示
LCD12864_sendbyte(iCmd,LCDb_BASCMD); //还原回基本指令集模式
}
/*******************************************
函数名称: main
功 能: 12864液晶驱动主程序
参 数: 无
返回值 : 无
/********************************************/
void main(void)
{
uchar i;
Board_init( ); //初始化开发板
LCD12864_initial(); //初始化12864液晶
while(1)
{
LCD12864_clear();
while(LCD12864_readBF());
LCD12864_gotoXY(1,0); //第1行，第1列显示
LCD12864_sendstr("AVR_PQ1A 开发板");
LCD12864_gotoXY(2,2); //第2行，第3列显示
LCD12864_sendstr("皮球制作");
LCD12864_gotoXY(3,0); //第3行，第1列显示
LCD12864_sendstr("电话:13212800564");
LCD12864_gotoXY(4,1); //第4行，第2列显示
LCD12864_sendstr("www.txmcu.com ");
Delayms(2000); //延时等待
LCD12864_clear(); //清屏幕
LCD12864_opGDRAM(GDRAM); //完成绘图，绘图后返回基本指令集模式
Delayms(2000);
}
}
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