/*參考程序B.LCDA.c程序功能;在該液晶模塊上顯示二行字符:
Welcom To NCD
www.xhl.com.cn*/
#include <c8051f020.h>                 
unsigned long x;  //www.xhl.com.cn
unsigned 	char 	xdata Netdata[15]={0x77,0x77,0x77,0x2e,0x78,0x68,0x6c,0x2e,0x63,0x6f,//|
                                0x6d,0x2e,0x63,0x6e};//                              |
    unsigned 	char 	xdata NCDdata[15]={0x57,0x65,0x6c,0x63,0x6f,0x6d,0x65,0x20,0x74,0x6f,//|
                                0x20,0x4e,0x43,0x44};//                              |
unsigned char *lcdpoint;         //指向 lcddata數組的指針
unsigned char lcd_data_count;        //要顯示的數據個數 
void SYSCLK_Init (void);
void PORT_Init (void);
void LCD_Init(void);
void SEND_LCD(unsigned char lcd_data_count);
void main (void)
 {
static unsigned char data1,data2;
    WDTCN = 0xde;
    WDTCN = 0xad;                       //禁止看門狗定時器
    SYSCLK_Init ();                        // 系統時鐘初始化
                                          
    PORT_Init ();                          // 交叉開關和通用I/O口初始化
 	while(1){
	    LCD_Init();                            //LCD初始化
	    //P6  = 0x0d;                             //準備送數據
	    for(x=0;x<5000;x++);
	    lcdpoint=&NCDdata;
	    for(lcd_data_count=14;lcd_data_count>0;lcd_data_count--)     //顯示第一行字符
	    { 
		    data1=*lcdpoint;
		    P7 = data1; //向LCD送數據
			P6 = 0x05;
	        P6 = 0x04;
			lcdpoint++;
			for(x=0;x<100;x++);
		}
	   	    P7 = 0xc0;
   	    	P6 = 0x1;	
   	     	P6 = 0x0; 		
   		for(x=0;x<1000;x++);
	    lcdpoint=&Netdata;
	    for(lcd_data_count=14;lcd_data_count>0;lcd_data_count--)     //顯示第一行字符
	    { 
		    data1=*lcdpoint;   //向LCD送數據
		    P7 = data1; 
			P6 = 0x04;
	        P6 = 0x05;
			lcdpoint++;
			for(x=0;x<100;x++);
		}
	}
}
//函數名稱:      SYSCLK_Init ()
//函數功能:      系統時鐘初始化
void SYSCLK_Init (void)
{

   OSCICN = 0x05;                          // 系統時鐘初始化為片內的 24.5MHz / 8                       
                                         
 }
void PORT_Init (void)
{
   XBR0     = 0x00;                       // 沒有選擇數字外設
   P74OUT  = 0xf0;                       // P6,P7口設為推挽方式
}
void LCD_Init(void) //向LCD送命令
{
	P6 = 0x01;
	for(x=0;x<50000;x++);
   //P7 = 0x30;				/*一行顯示*/
   P7 = 0x38;				/*兩行顯示*/
   P6 = 0x1;
   P6 = 0x0;                //向LCD送命令
   for(x=0;x<1000;x++);
   P7 = 0x0e;				/*開顯示，開光標，字符不閃爍*/
   P6 = 0x1;
   P6 = 0x0;
   for(x=0;x<1000;x++);
   P7= 0x06;				/*I/D=1,AC自動增1；S=0,整體顯示不移動*/
   P6 = 0x1;
   P6 = 0x0;
   for(x=0;x<5000;x++);
   P7 = 0x01;				/*清除DDRAM,置AC=0*/
   P6 = 0x1;
   P6 = 0x0; 
   for(x=0;x<5000;x++);
}