lio.c~

源代码实现的是uC/OS-II在ATmega128L上的移植

#include <mega128.h>
#include "delay.h"
#include "lio.h"
#include "ucos_ii.h"

#define uchar unsigned char

/*   定义OCMJ4X8端口   */
#define data_port PORTA
#define ASK       PINE.6
#define ANSWER    PORTE.7
#define RESET     PORTC.3
/************函数声明**************/
void ocmj_init(void);
void ocmj_write(uchar data);
void bmp_tran(uchar x,uchar y,uchar high,uchar width,flash uchar *bmp_p);
void hz_tran(uchar x,uchar y,uchar flash *hz_p);
void asc_tran(uchar x,uchar y,uchar flash *asc_p);

/***************主函数*************/
void LCD_disp(void)
{
	ocmj_init();//初始化	
	ocmj_write(0xf4);               //清屏
    hz_tran(0,0,"第一路信号");        //传送内部汉字,以16*16为一个汉字单元
    asc_tran(10,6,":");
    hz_tran(0,1,"第二路信号"); 
    asc_tran(10,22,":");
    hz_tran(0,2,"第三路信号");
    asc_tran(10,38,":");
    hz_tran(0,3,"第四路信号");
    asc_tran(10,54,":");         	   
	while(1)
    {
        OSTimeDly(50);      //延时以让出CPU
    } 
}        
/*****************************************/     
/*     OCMJ4X8LCD初始化     */
void ocmj_init(void)
    {
	    RESET=0;	//LCD复位
	    delay_ms(10);
	    RESET=1; 	
	    ANSWER=0;
	    delay_ms(10);
    }
/*            写数据到LCD        */
void ocmj_write(uchar data)
{
        while(ASK!=0);
	 	data_port=data;
   	    delay_ms(2);
	    ANSWER=1;
	    delay_ms(2);
	    while(ASK==0);
	    ANSWER=0; 
}
/*         传送bmp点阵数据到LCD            */
/*         x:0~15(字节为单位)  y:0~64      */
/*         bmp_p:指向图形数据的指针        */	
/*         high:位图高度(点阵行为单位)     */
/*         width:位图宽度(以字节为单位)?  */
void bmp_tran(uchar x,uchar y,uchar high,uchar width,flash uchar *bmp_p)
 {
	  uchar i,j;
	  x+=4;
	  for(j=0;j<high;j++)
	     {
		  for(i=0;i<width;i++)
		    {
			 ocmj_write(0xf3);
			 ocmj_write(x);
			 ocmj_write(y);
			 ocmj_write(*bmp_p);
			 bmp_p++;
			 x++;
			}
		  x-=width;
		  y++;	
		 }
}	 
/*       传送LCD内部汉字数据到LCD         */
/*       x:0x00~0x07 y:0x00~0x03          */
void hz_tran(uchar x,uchar y,uchar flash *hz_p)
{
	 x+=2;
     while((*hz_p)!=0)
	    {
		 ocmj_write(0xf0);
		 ocmj_write(x);
		 ocmj_write(y);
		 ocmj_write(*hz_p-0xa0);
		 hz_p++;
		 ocmj_write(*hz_p-0xa0);
		 hz_p++;
		 if(x<0x09)
 		    x++;
		 else
		    {
			 x=0x02;
			 y++;
			}	
		}
}
/*          传送ASCII字母到LCD            */
/*          x:0x00~0x0f y:0~64            */	
void asc_tran(uchar x,uchar y,uchar flash *asc_p)
{
	 x+=4;
	 while((*asc_p)!=0)
	    {
		 ocmj_write(0xf1);
		 ocmj_write(x);
		 ocmj_write(y);
		 ocmj_write(*asc_p);
		 asc_p++;
		 if (x<0x13) 
		    x++;
		 else
		   {
		    x=0x04;
			y+=8;		    
		   }	
		}	
}