51单片机各类源程序集锦

				//***********************************************************************
				//									     								*
				//                P H I L I P S   P R O P R I E T A R Y          		*
				//                                                                      *
				//          COPYRIGHT (c)   1999 BY PHILIPS SINGAPORE (APIC).    		*
				//                    --  ALL RIGHTS RESERVED  --                 		*	
				//                                                                      *
				// 	File Name	:       USB.h                                      *
				// 	Author		:       Albert Goh					 					*
				// 	Created		:      	3 March 2000                               		*
				//                  	                                                *
				//***********************************************************************
				//***********************************************************************
				//                                                                      *
				//  Module History														*
				//  **************														*
				//																		*
				//  Date   	Version			Author				Changes					*
				//  ====	=======			======				=======					*
				//  030300	  0.1 			Albert				Created    				*
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				//                                                                      *
				//***********************************************************************
				
				
				//#define	ENDPT_NUMBER			8
				//#define	INTERFACE_NO			2
				
				#define	ENDPT_NUMBER			4
				#define	INTERFACE_NO			1
				
				
				#define SWAP(x)   				((((x) & 0xFF) > 8) & 0xFF))
				
				#define	CONFIG_LENGTH			sizeof(CONFIGURATION_DESCRIPTOR) + \
												(INTERFACE_NO * sizeof(INTERFACE_DESCRIPTOR)) + \
												(ENDPT_NUMBER * sizeof(ENDPOINT_DESCRIPTOR))
												
				typedef struct DEVICE_DESCRIPTOR 
				{
				
				    UC bLength;
				    UC bDescriptorType;
				    UI bcdUSB;
				    UC bDeviceClass;
				    UC bDeviceSubClass;
				    UC bDeviceProtocol;
				    UC bMaxPacketSize0;
				    UI idVendor;
				    UI idProduct;
				    UI bcdDevice;
				    UC iManufacturer;
				    UC iProduct;
				    UC iSerialNumber;
				    UC bNumConfigurations;
				
				} DEVICE_DESCRIPTOR;
				
				
				typedef struct HS_DEVICE_QUALIFIER
				{
				
					UC	bLength;			//length of HS Device Descriptor
					UC	bQualifier; 		//HS Device Qualifier Type
					UI	wVersion;			// USB 2.0 version
					UC	bDeviceClass;		//Device class
					UC	bDeviceSubClasss;	//Device SubClass
					UC	bProtocol;			//Device Protocol Code
					UC	MaxPktSize;			//Maximum Packet SIze for other speed
					UC	bOther_Config;		//Number of Other speed configurations
					UC	Reserved;			//Reserved
				
				}HS_DEVICE_QUALIFIER;
				
				
				typedef struct CONFIGURATION_DESCRIPTOR 
				{
				    UC bLength;
				    UC bDescriptorType;
				    UI wTotalLength;
				    UC bNumInterfaces;
				    UC bConfigurationValue;
				    UC iConfiguration;
				    UC bmAttributes;
				    UC MaxPower;
				
				} CONFIGURATION_DESCRIPTOR;
				
				typedef struct	OTHER_SPEED_CONFIG_DESCRIPTOR
				{
				
					UC	bLength;					//length of other speed configuration descriptor
					UC	bDescriptorType;			//Other speed configuration Type
					UI	bTotalLength;				//Total length
					UC	No_Interface;				//No of interface supported
					UC	Configuration_Value;		//Configuration Value
					UC	String_Index_Descriptor;	//Index of string descriptor
					UC	Config_Characteristic;		//Configurations Characteristic
					UC	Max_Power;					//Maximun Power
				
				}OTHER_SPEED_CONFIG_DESCRIPTOR;
				
				
				typedef struct INTERFACE_DESCRIPTOR 
				{
				    UC bLength;
				    UC bDescriptorType;
				    UC bInterfaceNumber;
				    UC bAlternateSetting;
				    UC bNumEndpoints;
				    UC bInterfaceClass;
				    UC bInterfaceSubClass;
				    UC bInterfaceProtocol;
				    UC iInterface;
				
				} INTERFACE_DESCRIPTOR;
				
				
				typedef struct ENDPOINT_DESCRIPTOR 
				{
				    UC bLength;
				    UC bDescriptorType;
				    UC bEndpointAddress;
				    UC bmAttributes;
				    UI wMaxPacketSize;
				    UC bInterval;
				
				} ENDPOINT_DESCRIPTOR;
				
				
				
				typedef struct STRING_ID 
				{
				    UC bLength;
				    UC bDescriptorType;
				    UC bString[2];
				
				} STRING_ID;
				
				
				typedef struct STRING_DESCRIPTOR 
				{
				    UC bLength;
				    UC bDescriptorType;
				    UC bString[30];
				
				} STRING_DESCRIPTOR;