main.c

DSP5402+MP3开发板的实验例程

#include "cpu_reg.h"

#define		LCD_PORT  			port3fff
#define		IsRam				port6fff
ioport		Uint16		LCD_PORT;
ioport		Uint16		IsRam;

#define		TRUE	1
#define		FALSE	0

int ms;
void delay( int dl);
void main()
{	 
     int i;
     char *Word;
     Word = "明伟电子产品";
 	 asm("  STM #0000h,CLKMD ");  
     while(*CLKMD & 0x01 );
     asm(" NOP");
     asm(" NOP");
     asm(" NOP");
     asm(" NOP");
     asm(" NOP");
     asm("  STM #0F800h,CLKMD ");  
	*SWCR = 0X0001;
     //asm("  stm   #7240h, SWWSR ");
     asm("  stm   #0FFFFh, SWWSR ");
     asm("  stm   #00A0h, PMST  "); //MP/MC = 0, IPTR = 001,ovly=0  
     asm("  stm   #0802h, BSCR  "); //802
     asm("  STM #0h,IMR ");
     
     asm("  STM #0010h,TCR  "); //关定时器
     asm("  STM #06h,PRD  ");//0.01ms
     asm("  STM #0C2fh,TCR  "); //TCR=最后四位
     asm("  STM #0008h,IFR  ");
     asm("  ORM #0008h,*(IMR) ");/*开时间中断*/
 
     asm("  RSBX  INTM ");      /*开中断*/ 
     
      asm("  SSBX  XF ");
      delay(10000);

         
      asm("  RSBX  XF ");
      IsRam  = 0x0;    //下面进行指令操作
      delay(100);
      LCD_PORT  = 0x34;//扩展指令集
      delay(100);
      LCD_PORT = 0x30;//基本指令操作;
      delay(100);
      LCD_PORT = 0x01;//清除显示
      
      delay(100);
      LCD_PORT = 0x06;//指定在资料写入或读取时，光标的移动方向 
      delay(100);
      LCD_PORT = 0x0C;//开显示
   
      delay(100);
      LCD_PORT = 0x91;//起始位置为第2行第1列


      IsRam  = 0x100;    //下面进行数据操作
      delay(100);      
      for(i=0;i<12;i++)
      {
      delay(100);
      LCD_PORT = Word[i];
      }
     // LCD_RAM = Word[0];
      /*delay(100);
      LCD_RAM=0xD2;
      delay(100);
      LCD_RAM=0xBA;
      delay(100);
      LCD_RAM=0xBE;      
      delay(100);
      LCD_RAM=0xA7;        
      delay(100);
      LCD_RAM=0xCA;
      delay(100);
      LCD_RAM=0xBE;
      delay(100);
      LCD_RAM=0xC0;      
      delay(100);
      LCD_RAM=0xFD;      
      delay(100);
      LCD_RAM=0xB3;
      delay(100);
      LCD_RAM=0xCC;      
      delay(100);
      LCD_RAM=0xD0;      
      delay(100);
      LCD_RAM=0xF2;*/
         
     i = 0;
     while(1)
     {
      asm("  RSBX  XF ");  
      delay(10000);
      asm("  SSBX  XF "); 
      delay(10000);
     }

}





void delay( int dl)
{
   ms = 0;
   while(ms<dl);
}
	  
interrupt void  timer0()
{
     ms++;
}