dsp_r.c

dsp2407的实验测试程序,包括存储器

#include <absacc.h>

#define   IN2BC               0x7fb9
#define   OUT2BC              0x7fC9
#define   IN2CS               0x7fb8
#define   OUT2CS              0x7fC8
#define   IN2BUF              0x7E00
#define   OUT2BUF             0x7DC0
//===================================
#define   IN4BC               0x7fBD     //P189
#define   OUT4BC              0x7fCD
#define   IN4CS               0x7fBC
#define   OUT4CS              0x7fCC
#define   IN4BUF              0x7D00    //P172
#define   OUT4BUF             0x7CC0
//==================================
#define   CPUCS               0x7f92   //P175
//==========PORT A B C 控制===========
#define   PORTACFG            0x7f93   //P176
#define   PORTBCFG            0x7f94
#define   PORTCCFG            0x7f95 

#define   OUTA                0x7f96
#define   OUTB                0x7f97
#define   OUTC                0x7f98

#define   PINSA               0x7f99
#define   PINSB               0x7f9A
#define   PINSC               0x7f9B

#define   OEA                 0x7f9C
#define   OEB                 0x7f9D
#define   OEC                 0x7f9E
//=====================================
//#define   OEA                 0x7f9C
 
void delay()
{
     unsigned  char k=10,p=0; 
     for(p=0;p<k;p++)
	 {
	 }
}
main()
{
     unsigned    char  i,j=0;
	 XBYTE[PORTACFG] = 0X00;
	 XBYTE[PORTCCFG] = 0X00;
	 XBYTE[OEA] = 0X0FF;
	 XBYTE[OEC] = 0X01;
	 XBYTE[OUTC] = 0X0;

     while(1)
     {
//          while(XBYTE[OUT4CS]&0X80);
//          while(XBYTE[IN4CS]&0X80);
          while(XBYTE[OUT4CS]&0X02);
          
		  while(!(XBYTE[PINSC]&0x10));
 		  XBYTE[OUTA] = XBYTE[OUT4BC];
          i = XBYTE[OUT4BC];
          delay();
		  XBYTE[OUTC] = 0X01;
 		  delay();
		  XBYTE[OUTC] = 0X0;
		  delay();
          for(j=0;j<i;j++)
             {
             while(!(XBYTE[PINSC]&0x10));
             XBYTE[OUTA] = XBYTE[OUT4BUF+j]; 
			 XBYTE[IN4BUF+j] = XBYTE[OUT4BUF+j]; 
//             delay();
             XBYTE[OUTC] = 0X01;
		     XBYTE[OUTC] = 0X0;
//             delay();
			 }
		  XBYTE[IN4BC]=XBYTE[OUT4BC];
		  XBYTE[OUT4BC]=XBYTE[OUT4BC];
      }	
}