transferdata.c

使用Usb cy7c68013与DSP通信

#include <cdefBF533.h>

#define Rec_Buffer  0x7ff0000	

#define Ep2_Addr 	 ((volatile unsigned short *)0x20300000)
#define Ep4_Addr 	 ((volatile unsigned short *)0x20300400)
#define Ep6_Addr 	 ((volatile unsigned short *)0x20300800)
#define Ep8_Addr 	 ((volatile unsigned short *)0x20300c00)
//#define pRec_Buffer	((volatile void  **)Rec_Buffer)
//#define pRec_Buffer	(((volatile unsigned short *)0x07ff0000)
volatile unsigned short  * FifoFill(volatile unsigned short  * pBuffer,int nBytes,int EpNum);

/******************************************************************************

Author by tohope @zzuli

File Name:	TransferData.c   

Date Modified:	5/8/06				Rev 0.1

Software:       VisualDSP++4.0

Hardware:		ADSP-BF533 EZ-KIT Board

Special Connections:  
void Trans_Ram(volatile unsigned short  * pStartAddr,int nBytes,int TransFlag)
Transfer nBytes bytes from pStartAddr;TransFlag is a Flags bits here refer PF2; 

Purpose:		The file  Transfer Data thronght Ep2,4,6,8
				

*********************************************************************************/
extern TransFlag;
void Trans_Ram(volatile unsigned short  * pStartAddr,int nBytes,int TransFlag)
{
	int j=0;
//	char * 	pRec_Buffer=Rec_Buffer;
//	char * 	pSend_Buffer=Rec_Buffer;
//	char *	pStartAddr=&StartAddr;
	int 	EpNum=6;
	int i=0;  
	bool PKT_FLAG= false; 
	volatile unsigned short *  pTransAddr;                         //init Ep name
	if (TransFlag==1)
	{	

	pTransAddr = Ep6_Addr;
	bool show=(*pFIO_FLAG_D)&PF6;
	if (show) 
	{
	printf("PF6 is high"); 
	}
	else printf("PF6 is low votage");
	
	if ((nBytes%512)==0){
	    PKT_FLAG=false;
	}else PKT_FLAG= true;
	while (nBytes>0)
	{   
	   
	    if (!(((*pFIO_FLAG_D)&PF6)==PF6)){
		* pTransAddr = * pStartAddr;
		nBytes--;
		nBytes--;
	 	pStartAddr++;
	 	i++;
	 	for (j=0;j<20;j++);
	 	
	    }

	
	}
	if(PKT_FLAG) {
	    
	    *pFIO_FLAG_S=0x0080;
	    printf("\nPF4 has been set %d\n",i);
	    
	}
	printf("\nTransfer Times is %d\n",i);	
	}

}