test21.c

5402开发板附带的源程序

#include "REG5402.h"
int char1[14]={0x57,0x55,0x48,0x41,0x4e,0x20,0x5a,0x48,0x4f,0x4e,0x47,0x59,0x4f,0x55};
int char2[16]={0x54,0x65,0x6c,0x3a,0x30,0x32,0x37,0x2d,0x38,0x37,0x33,0x38,0x33,0x31,0x31,0x36};
int char3[16]={0x46,0x61,0x78,0x3a,0x30,0x32,0x37,0x2d,0x38,0x37,0x33,0x38,0x31,0x36,0x39,0x30};
int char4[15]={0x50,0x6f,0x73,0x74,0x63,0x6f,0x64,0x65,0x3a,0x34,0x33,0x30,0x30,0x37,0x30};
int char5[6]={0x01,0x04,0x0c,0x14,0x38,0x01};      

int time1_over;

void cpu_init()
{
   PMST=0x3fa0;
   SWWSR=0x7fff;
   BSCR=0x0002;
   SWCR=0x0000;
   IMR=0;
   IFR=IFR;
} 

void set_t0()    
{
   asm(" ssbx intm");
   TCR0=0x0a18;
   PRD0=0x0007;       
   IMR=IMR|0x0008;
   IFR=IFR;
   asm(" rsbx intm");
}

void busy()
{
   TCR0=0x0a28;
   PRD0=0x1800; 
   while(time1_over==0);
   time1_over=0;
}
      
main()
{
   int i; 
   cpu_init();
   set_t0();
   time1_over=0;

/*********液晶屏初始化*************/  
 for(i=0;i<6;i++)
 {  
   READS=char5[i]|0x0400;    /*rs=0,wr=0,e=1*/       
   busy();
   READS=char5[i]|0x0000;     /*e=0*/ 
   busy();   
 }  
 
 /*****the first line *****/     
   READS=0x0080|0x0400;
   busy();   
   
   READS=0x0080|0x0000;
   busy();    

 for(i=0;i<14;i++)
 {               
     READS=char1[i]|0x0500;
     busy();
          
     READS=char1[i]|0x0100;
     busy();     
 }
 
 /*****the second line *****/     
   READS=0x00c0|0x0400;
   busy();   
   
   READS=0x00c0|0x0000;
   busy();    

 for(i=0;i<16;i++)
 {             
     READS=char2[i]|0x0500;
     busy();    
     
     READS=char2[i]|0x0100;
     busy();     
 }
 
 /*****the third line *****/     
   READS=0x0094|0x0400;
   busy();
       
   READS=0x0094|0x0000;
   busy();    

 for(i=0;i<16;i++)
 {             
     READS=char3[i]|0x0500;
     busy();
         
     READS=char3[i]|0x0100;
     busy();     
 }
 
 /*****the forth line *****/     
   READS=0x00d4|0x0400;
   busy();
         
   READS=0x00d4|0x0000;
   busy();    

 for(i=0;i<15;i++)
 {                   
     READS=char4[i]|0x0500;
     busy();
         
     READS=char4[i]|0x0100;
     busy();     
 }
}

interrupt void tint0()        
{  
   time1_over=1;     
}