/****************************************************************************** “天祥电子” 倾情奉献 www.txmcu.com www.txmcu.cn ************************************************************************************* 功能简介： 本程序驱动12864显示一副的图片。 ************************************************************************************/ #include #include #define uchar unsigned char #define uint unsigned int /*12864端口定义*/ #define LCD_data P0 //数据口 sbit LCD_RS = P3^5; //寄存器选择输入 sbit LCD_RW = P3^6; //液晶读/写控制 sbit LCD_EN = P3^4; //液晶使能控制 sbit LCD_PSB = P3^7; //串/并方式控制 sbit wela = P2^6; sbit dula = P2^7; unsigned char code zhu[]= //图片代码 { 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, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xD4,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 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{_nop_();_nop_();_nop_();_nop_();}; void delay0(uchar x); //x*0.14MS void beep(); void dataconv(); void lcd_pos(uchar X,uchar Y); //确定显示位置 void delay(int ms) { while(ms--) { uchar i; for(i=0;i<250;i++) { _nop_(); _nop_(); _nop_(); _nop_(); } } } /*******************************************************************/ /* */ /*检查LCD忙状态 */ /*lcd_busy为1时，忙，等待。lcd-busy为0时,闲，可写指令与数据。 */ /* */ /*******************************************************************/ bit lcd_busy() { bit result; LCD_RS = 0; LCD_RW = 1; LCD_EN = 1; delayNOP(); result = (bit)(P0&0x80); LCD_EN = 0; return(result); } /*******************************************************************/ /* */ /*写指令数据到LCD */ /*RS=L，RW=L，E=高脉冲，D0-D7=指令码。 */ /* */ /*******************************************************************/ void lcd_wcmd(uchar cmd) { while(lcd_busy()); LCD_RS = 0; LCD_RW = 0; LCD_EN = 0; _nop_(); _nop_(); P0 = cmd; delayNOP(); LCD_EN = 1; delayNOP(); LCD_EN = 0; } /*******************************************************************/ /* */ /*写显示数据到LCD */ /*RS=H，RW=L，E=高脉冲，D0-D7=数据。 */ /* */ /*******************************************************************/ void lcd_wdat(uchar dat) { while(lcd_busy()); LCD_RS = 1; LCD_RW = 0; LCD_EN = 0; P0 = dat; delayNOP(); LCD_EN = 1; delayNOP(); LCD_EN = 0; } /*******************************************************************/ /* */ /* LCD初始化设定 */ /* */ /*******************************************************************/ void lcd_init() { LCD_PSB = 1; //并口方式 lcd_wcmd(0x34); //扩充指令操作 delay(5); lcd_wcmd(0x30); //基本指令操作 delay(5); lcd_wcmd(0x0C); //显示开，关光标 delay(5); lcd_wcmd(0x01); //清除LCD的显示内容 delay(5); } /******************************************* 函数名称:Draw_PM 功 能:在整个液晶屏幕上画图 参 数:无 返回值 :无 ********************************************/ void Draw_PM(const uchar *ptr) { uchar i,j,k; wela=0; dula=0; lcd_wcmd(0x34); //打开扩展指令集 i = 0x80; for(j = 0;j < 32;j++) { lcd_wcmd(i++); lcd_wcmd(0x80); for(k = 0;k < 16;k++) { lcd_wdat(*ptr++); } } i = 0x80; for(j = 0;j < 32;j++) { lcd_wcmd(i++); lcd_wcmd(0x88); for(k = 0;k < 16;k++) { lcd_wdat(*ptr++); } } lcd_wcmd(0x36); //打开绘图显示 lcd_wcmd(0x30); //回到基本指令集 } main() { wela=0; dula=0; lcd_init(); //初始化LCD Draw_PM(zhu); //显示可爱猪的图片 while(1); }