main.c

用89C51SND1C实现的USB存储器的代码,包括USB通信和FLASH的读写操作.

/****************************************************************/
/*					UP-MP3DIY100								*/
/*		Beijing Universal Pioneering Technology Co., LTD		*/
/*		CopyRighted,All right Reserved	www.up-tech.com			*/
/*						July,2003								*/
/*				010-62387873  62381842							*/
/****************************************************************/

#include <REGSND1.H>
#include "uart.h"
#include "atmelusbci.h"

//三、读取端点0数据
unsigned char ReadEp(unsigned char EpNum,unsigned char *Data)
{
	unsigned char i=0,nLength;
	UEPNUM=EpNum;

	nLength=UBYCTX;
	while(nLength--) {Data[i++]=UEPDATX;/*printuf("%x ",Data[i]);*/}

	UEPSTAX&=~(RXOUTB0|RXOUTB1|RXSETUP);
	return(i);
}

void Ep0Int()
{
 unsigned char i,j;
 unsigned char ControlData[32]={0,};
 printu("\nEp0 Interrrupted!");
 i=ReadEp(0,ControlData);
 for(j=0;j<i;j++) printuf("%x ",ControlData[j]);
}

void main_txdone()
{}
void main_rxdone()
{}
void main()
{
	printu("Test Ep0 Intterupt\n");
	AtmelUSBInit(0,2,0);
	EpEnable();
	while(1){
		if(UEPINT&EP0INT) Ep0Int();
		if(UEPINT&EP1INT) main_txdone();
		if(UEPINT&EP2INT) main_rxdone();
		UEPINT=0;
	}
}
//读取端点0数据


/*
//二、测试中断产生
void Ep0Int()
{

 printu("Ep0 Interrrupted!\n");
 UEPNUM=0;
 //UEPSTAX&=~(RXOUTB0|RXOUTB1|RXSETUP); 
 UEPSTAX&=~(RXSETUP);//clear RXSETUP
}
void main_txdone()
{}
void main_rxdone()
{}
void main()
{
	printu("Test Ep0 Intterupt\n");
	AtmelUSBInit(0,2,0);
	EpEnable();
	while(1){
		if(UEPINT&EP0INT) Ep0Int();
		if(UEPINT&EP1INT) main_txdone();
		if(UEPINT&EP2INT) main_rxdone();
		UEPINT=0;
	}
}
//测试中断产生
*/


	
/*
//一、测试寄存器读写
main()
{
 int i=0;
 printu("Test Register Write and Read!\n");

 USBCON&=(~USBE);//USB控制器禁止
 for(i=0;i<3000;i++)
 USBCON|=USBE;//USB控制器使能

 for(i=0;i<3;i++){
 UEPNUM = i;
 printuf("UEPNUM = %x\n",UEPNUM);
 }
  while(1); 
}
//测试寄存器读写
*/