usb.h

开发环境ADS 通过编写一段程序使PC机与实验箱的从USB相连接。连接的时候

/************************************************************************
 *File	: Usb.h															*
 *By 	: hugang, [e-mail]								*
 ************************************************************************/ 

#ifndef __USB_H__
#define __USB_H__

/********************************************************************************************************
 *USB设备请求Set_Address地址掩码	wValue																*
 *																										*
 ********************************************************************************************************/
#define EP0_TX_FIFO_SIZE	0x10
#define EP0_RX_FIFO_SIZE	0x10
#define EP0_PACKET_SIZE		0x10

#define EP1_TX_FIFO_SIZE	0x10
#define EP1_RX_FIFO_SIZE	0x10
#define EP1_PACKET_SIZE		0x10

#define EP2_TX_FIFO_SIZE	0x10
#define EP2_RX_FIFO_SIZE	0x10
#define EP2_PACKET_SIZE		0x40

#define NUM_ENDPOINTS		0x04

#define USB_IDLE			0
#define USB_TRANSMIT		1
#define USB_RECEIVE			2

typedef __packed struct _IO_REQUEST {
	unsigned short	uAddressL;
	unsigned char	bAddressH;
	unsigned short	uSize;
	unsigned char	bCommand;
} IO_REQUEST, *PIO_REQUEST;

typedef __packed struct _device_request
{
	unsigned char bmRequestType;
	unsigned char bRequest;
	unsigned short wValue;
	unsigned short wIndex;
	unsigned short wLength;
} DEVICE_REQUEST;

#define MAX_CONTROLDATA_SIZE	16

typedef __packed struct _control_xfer
{
	DEVICE_REQUEST DeviceRequest;
	unsigned short wLength;
	unsigned short wCount;
	unsigned char  *pData;
	unsigned char dataBuffer[MAX_CONTROLDATA_SIZE];
} CONTROL_XFER;

void UsbSuspendChange(void);
void UsbStallEp0(void);
void UsbDisconnect(void);
void UsbConnect(void);
void UsbReconnect(void);
void UsbInitUnconfig(void);
void UsbInitConfig(void);
void UsbSingleTransmit(unsigned char* pBuf, unsigned char nLen);
void UsbCodeTransmit(unsigned char * pRomData, unsigned short nLen);
void UsbControlHandler(void);
void UsbClearAllInts(void);

#endif