36.2-LCD128x64显示图形文字-ST7920，STC32G12K128实验箱演示程序，STC32G8K64,STC32C
36.2-LCD128x64显示图形文字-ST7920，STC32G12K128实验箱演示程序，STC32G8K64,STC32CL8K64主程序main.C代码如下（汇编版本在附件中）：
/*---------------------------------------------------------------------*/
/* --- Web: www.STCAI.com ---------------------------------------------*/
/* --- BBS: www.STCAIMCU.com-----------------------------------------*/
/* 如果要在程序中使用此代码,请在程序中注明使用了STC的资料及程序 */
/*---------------------------------------------------------------------*/
/*************功能说明 **************
本例程基于STC32G为主控芯片的实验箱9.6版本进行编写测试。
使用Keil C251编译器，Memory Model推荐设置XSmall模式，默认定义变量在edata，单时钟存取访问速度快。
edata建议保留1K给堆栈使用，空间不够时可将大数组、不常用变量加xdata关键字定义到xdata空间。
128*64的LCD显示程序
显示图形，汉字，英文，数字
下载时, 选择时钟 24MHz (用户可自行修改频率).
******************************************/
#include "..\comm\STC32G.h"
#include "stdio.h"
#include "intrins.h"
typedef unsigned char u8;
typedef unsigned int u16;
typedef unsigned long u32;
#define MAIN_Fosc 24000000UL
/****************************** 用户定义宏 ***********************************/
sbit LCD_RS = P4^5;//定义引脚
sbit LCD_RW = P4^2;//9.5版本之前实验箱需要将P42与P44对调才能正常使用
sbit LCD_E= P4^4;
//sbit PSB = P3^5; //PSB脚为12864的串、并通讯功能切换，我们使用8位并行接口，PSB=1
sbit LCD_RESET = P3^4; //17---RESETL-->Enable
#define LCD_Data P6
#define Busy 0x80 //用于检测LCD状态字中的Busy标识
/*****************************************************************************/
/*************本地常量声明 **************/
u8code uctech[] = {"南通国芯微电子"};
u8code net[] = {" www.stcmcu.com "};
u8code mcu[] = {"专业制造51单片机"};
u8code qq[] = {" QQ: 800003751"};
//128*64点阵图形数据
u8 code gImage_gxw = { /* 0X10,0X01,0X00,0X80,0X00,0X40, */
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X00,0X3F,0X03,0XF0,0X3F,0X03,0XF0,0X00,0X00,0X00,0X0C,0X00,0X00,0X00,0XC0,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X00,0X00,0X0C,0X00,0X18,0XFF,0XE0,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X00,0X00,0X08,0X1C,0X1C,0X1B,0X00,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X00,0X1F,0XFF,0XFE,0X0C,0X0E,0X00,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X00,0X00,0X0C,0X00,0X00,0X8C,0X60,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X00,0X04,0X0C,0X10,0X00,0XFF,0XF0,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X00,0X07,0XFF,0XF8,0X0C,0XCC,0X60,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X00,0X06,0X63,0X18,0X7E,0XCC,0X60,0X00,
0X7F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF8,0X00,0X06,0X33,0X98,0X0C,0XFF,0XE0,0X00,
0X7F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF8,0X00,0X06,0X32,0X18,0X0C,0XCC,0X60,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X05,0XD8,0X0C,0XCC,0X60,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0XFF,0X78,0X0C,0XFF,0XE0,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X08,0XD8,0X0C,0XCC,0X60,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X07,0XFF,0XF8,0X0C,0XCC,0X60,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X0C,0X18,0X0C,0XCF,0XE0,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X0C,0X18,0X3E,0X80,0X40,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X0C,0X18,0X73,0XC0,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X0D,0XF0,0X20,0X7F,0XF8,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X00,0X30,0X00,0X00,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X00,0X18,0X01,0X84,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X07,0XFF,0XFC,0X01,0XC6,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X06,0X00,0X58,0X01,0X86,0X30,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X07,0XFF,0XD8,0X7F,0XFF,0XF8,0X00,
0X60,0X00,0XFD,0X1F,0XF0,0X7A,0X00,0X18,0X00,0X06,0X0C,0X18,0X01,0X86,0X00,0X00,
0X60,0X01,0X87,0X13,0X30,0XC6,0X00,0X18,0X00,0X06,0X0C,0X18,0X01,0X86,0X00,0X00,
0X60,0X03,0X03,0X33,0X11,0X83,0X00,0X18,0X00,0X06,0X0C,0X18,0X00,0X40,0X00,0X00,
0X60,0X03,0X03,0X03,0X01,0X83,0X00,0X18,0X00,0X06,0X0C,0XD8,0X00,0X30,0X00,0X00,
0X60,0X03,0X80,0X03,0X03,0X80,0X00,0X18,0X00,0X06,0XFF,0XF8,0X03,0X38,0X00,0X00,
0X60,0X01,0XC0,0X03,0X03,0X00,0X00,0X18,0X00,0X06,0X0F,0X18,0X0B,0X98,0X80,0X00,
0X60,0X00,0X78,0X03,0X03,0X00,0X00,0X18,0X00,0X06,0X0D,0X98,0X0B,0X18,0XC0,0X00,
0X60,0X00,0X1E,0X03,0X03,0X00,0X00,0X18,0X00,0X06,0X0C,0XD8,0X1B,0X00,0X70,0X00,
0X60,0X00,0X07,0X03,0X03,0X00,0X00,0X18,0X00,0X06,0X0C,0X18,0X1B,0X01,0X30,0X00,
0X60,0X00,0X03,0X03,0X03,0X80,0X00,0X18,0X00,0X06,0X0C,0XD8,0X3B,0X01,0X30,0X00,
0X60,0X03,0X03,0X03,0X03,0X83,0X00,0X18,0X00,0X07,0XF7,0XB8,0X33,0X01,0X80,0X00,
0X60,0X03,0X03,0X03,0X01,0X82,0X00,0X18,0X00,0X06,0X00,0X18,0X03,0X01,0X80,0X00,
0X60,0X01,0XC6,0X03,0X01,0XC6,0X00,0X18,0X00,0X07,0XFF,0XF8,0X01,0XFF,0X80,0X00,
0X60,0X01,0X7C,0X07,0XC0,0X7C,0X00,0X18,0X00,0X06,0X00,0X18,0X00,0X00,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X04,0X00,0X00,0X00,0X00,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X21,0X86,0X00,0X07,0X00,0X00,0X00,0X10,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X31,0X86,0X00,0X07,0X00,0X03,0XFF,0XF8,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X65,0X66,0X00,0X02,0X00,0X00,0X00,0X68,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0XC7,0X7C,0X00,0X02,0X08,0X00,0X00,0XC0,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X95,0X6C,0X41,0XFF,0XFC,0X00,0X03,0X80,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X19,0X3D,0X6F,0XE1,0X82,0X0C,0X00,0X0E,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X3E,0XE9,0XA1,0X82,0X0C,0X00,0X0E,0X00,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X60,0X59,0X81,0X82,0X0C,0X00,0X0C,0X0C,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0X6F,0XFD,0X81,0XFF,0XFC,0X1F,0XFF,0XFE,
0X60,0X00,0X00,0X00,0X00,0X00,0X00,0X18,0XE0,0X15,0X81,0X82,0X0C,0X00,0X0C,0X02,
0X7F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF8,0XA6,0X45,0X81,0X82,0X0C,0X00,0X0C,0X00,
0X7F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XF9,0X27,0XC7,0X01,0X82,0X0C,0X00,0X0C,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X26,0X47,0X01,0XFF,0XFC,0X00,0X0C,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X26,0X5F,0X01,0X82,0X0B,0X00,0X0C,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X26,0X77,0X01,0X02,0X03,0X00,0X0C,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X26,0XEF,0X80,0X02,0X03,0X00,0X0C,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X24,0X59,0XC0,0X02,0X03,0X00,0X0C,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X38,0X30,0XE0,0X03,0XFF,0X80,0X7C,0X00,
0X00,0X21,0X02,0X10,0X21,0X02,0X10,0X00,0X38,0XE0,0X00,0X00,0X00,0X00,0X18,0X00,
0X00,0X3F,0X03,0XF0,0X3F,0X03,0XF0,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
};
/*************本地变量声明 **************/
/*************本地函数声明 **************/
void delay_ms(u16 ms);
void WriteDataLCD(u8 WDLCD);
void WriteCommandLCD(u8 WCLCD,u8 BuysC);
u8 ReadDataLCD(void);
u8 ReadStatusLCD(void);
void LCDInit(void);
void LCDClear(void);
void LCDFlash(void);
void DisplayOneChar(u8 X, u8 Y, u8 DData);
void DisplayListChar(u8 X, u8 Y, u8 code *DData);
void DisplayImage (u8 code *DData);
/********************* 主函数 *************************/
void main(void)
{
WTST = 0;//设置程序指令延时参数，赋值为0可将CPU执行指令的速度设置为最快
EAXFR = 1; //扩展寄存器(XFR)访问使能
CKCON = 0; //提高访问XRAM速度
P0M1 = 0x30; P0M0 = 0x30; //设置P0.4、P0.5为漏极开路(实验箱加了上拉电阻到3.3V)
P1M1 = 0x3a; P1M0 = 0x32; //设置P1.1、P1.4、P1.5为漏极开路(实验箱加了上拉电阻到3.3V), P1.1在PWM当DAC电路通过电阻串联到P2.3,P1.3 为 ADC 高阻输入
P2M1 = 0x3c; P2M0 = 0x3c; //设置P2.2~P2.5为漏极开路(实验箱加了上拉电阻到3.3V)
P3M1 = 0x50; P3M0 = 0x50; //设置P3.4、P3.6为漏极开路(实验箱加了上拉电阻到3.3V)
P4M1 = 0x3c; P4M0 = 0x3c; //设置P4.2~P4.5为漏极开路(实验箱加了上拉电阻到3.3V)
P5M1 = 0x0c; P5M0 = 0x0c; //设置P5.2、P5.3为漏极开路(实验箱加了上拉电阻到3.3V)
P6M1 = 0xff; P6M0 = 0xff; //设置为漏极开路(实验箱加了上拉电阻到3.3V)
P7M1 = 0x00; P7M0 = 0x00; //设置为准双向口
delay_ms(100); //启动等待，等LCD讲入工作状态
LCDInit(); //LCM初始化
delay_ms(5); //延时片刻(可不要)
while(1)
{
LCDClear();
DisplayImage(gImage_gxw);//显示图形
delay_ms(3000);
LCDClear();
DisplayListChar(0,1,uctech); //显示字库中的中文数字
DisplayListChar(0,2,net); //显示字库中的中文数字
DisplayListChar(0,3,mcu); //显示字库中的中文
DisplayListChar(0,4,qq); //显示字库中的中文数字
delay_ms(3000);
}
}
//========================================================================
// 函数: void delay_ms(u8 ms)
// 描述: 延时函数。
// 参数: ms,要延时的ms数, 这里只支持1~255ms. 自动适应主时钟.
// 返回: none.
// 版本: VER1.0
// 日期: 2013-4-1
// 备注:
//========================================================================
void delay_ms(u16 ms)
{
u16 i;
do{
i = MAIN_Fosc / 6000;
while(--i);
}while(--ms);
}
//******************************************
void LCD_delay(void)
{
NOP(30); //电压降低，IO口翻转速度变慢，驱动信号需要增加延时时间
NOP(30);
}
//写数据
void WriteDataLCD(u8 WDLCD)
{
ReadStatusLCD(); //检测忙
LCD_RS = 1;
LCD_delay();
LCD_RW = 0;
LCD_Data = WDLCD;
LCD_delay();
LCD_E = 1;
LCD_delay();
LCD_E = 0;
}
//写指令
void WriteCommandLCD(u8 WCLCD,u8 BuysC) //BuysC为0时忽略忙检测
{
if (BuysC) ReadStatusLCD(); //根据需要检测忙
LCD_RS = 0;
LCD_delay();
LCD_RW = 0;
LCD_Data = WCLCD;
LCD_delay();
LCD_E = 1;
LCD_delay();
LCD_E = 0;
}
//读状态
u8 ReadStatusLCD(void)
{
LCD_Data = 0xFF;
LCD_RS = 0;
LCD_delay();
LCD_RW = 1;
LCD_delay();
LCD_E = 1;
LCD_delay();
while (LCD_Data & Busy); //检测忙信号
LCD_E = 0;
return(LCD_Data);
}
void LCDInit(void) //LCM初始化
{
//PSB = 1; //并口
//PSB = 0; //SPI口
delay_ms(10);
LCD_RESET = 0;
delay_ms(10);
LCD_RESET = 1;
delay_ms(100);
WriteCommandLCD(0x30,1); //显示模式设置,开始要求每次检测忙信号
WriteCommandLCD(0x01,1); //显示清屏
WriteCommandLCD(0x06,1); // 显示光标移动设置
WriteCommandLCD(0x0C,1); // 显示开及光标设置
}
void LCDClear(void) //清屏
{
WriteCommandLCD(0x01,1); //显示清屏
WriteCommandLCD(0x34,1); // 显示光标移动设置
WriteCommandLCD(0x30,1); // 显示开及光标设置
}
//按指定位置显示一串字符
void DisplayListChar(u8 X, u8 Y, u8 code *DData)
{
u8 ListLength,X2;
ListLength = 0;
X2 = X;
if(Y < 1) Y=1;
if(Y > 4) Y=4;
X &= 0x0F; //限制X不能大于16，Y在1-4之内
switch(Y)
{
case 1: X2 |= 0X80; break;//根据行数来选择相应地址
case 2: X2 |= 0X90; break;
case 3: X2 |= 0X88; break;
case 4: X2 |= 0X98; break;
}
WriteCommandLCD(X2, 1); //发送地址码
while (DData >= 0x20) //若到达字串尾则退出
{
if (X <= 0x0F) //X坐标应小于0xF
{
WriteDataLCD(DData); //
ListLength++;
X++;
}
}
}
//图形显示122*32
void DisplayImage (u8 code *DData)
{
u8 x,y,i;
unsigned int tmp=0;
for(i=0;i<9;) //分两屏，上半屏和下半屏，因为起始地址不同，需要分开
{
for(x=0;x<32;x++) //32行
{
WriteCommandLCD(0x34,1);
WriteCommandLCD((u8)(0x80+x),1);//列地址
WriteCommandLCD((u8)(0x80+i),1); //行地址，下半屏，即第三行地址0X88
WriteCommandLCD(0x30,1);
for(y=0;y<16;y++)
WriteDataLCD(DData);//读取数据写入LCD
tmp+=16;
}
i+=8;
}
WriteCommandLCD(0x36,1); //扩充功能设定
WriteCommandLCD(0x30,1);
}
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