usb_a.c

USB便携多道系统单片机固件程序.单片机固件程序采用CodeWarrior Development Studio for HC(S)08 Microcontrollers集成开发环境开发

//===================================================================//
//     Project Name : MOTOROLA-PDIUSBD12 USB-MCS CARD
//      Module Name : Master Firmware Program
//     Product Type : License
//      OS/Dev Tool : CodeWarrior Development Studio for HC(S)08 Microcontrollers
//  Original Author : Ming Zeng
//     Organization : Tsinghua University , DEP 
//    Original Date : Feb, 20, 2003
//             Addr : Tsinghua University, Beijing City
//              TEL : 
//            EMail : [e-mail]
//          Website : http://www.zming.net
//		  Copyright : Copyright ZMing.net, 2003
//         Comments : 
//                    
//			
//===================================================================//

#include "COMMON.H"
#include "USB.H"
#include "USBD12.H"
#include "CHAP9.H"
#include "VDOR.H"
#include "HAL.H"

extern COMMONFLAGS bCOMMONFlags;
//*************************************************************************
//  Public static data
//*************************************************************************



////////////////
// Functions 
/////////////////
void USB_Suspend_Change(void)
{
}

void USB_Stall_EP0(void)
{
	USBD12_SetEndpointStatus(0, 1);
	USBD12_SetEndpointStatus(1, 1);
}

void USB_Disconnect(void)
{
	INTSCR |= 0x02; //关闭int中断
	// Initialize D12 configuration
	USBD12_SetMode(USBD12_NOLAZYCLOCK | USBD12_CLOCKRUNNING,
        USBD12_SETTOONE | USBD12_CLOCK_12M);
}

void USB_Connect(void)
{
	// reset event flags
	bCOMMONFlags.nValue = 0;

	USBD12_SetEndpointStatus(4, 0);
	USBD12_SetEndpointStatus(5, 0);
	USBD12_SetDMA(USBD12_ENDP4INTENABLE | USBD12_ENDP5INTENABLE);

	// Initialize D12 configuration
	USBD12_SetMode(USBD12_NOLAZYCLOCK | USBD12_CLOCKRUNNING | USBD12_SOFTCONNECT, USBD12_SETTOONE | USBD12_CLOCK_12M);
	INTSCR &= 0xfd; //打开int中断  //	EX0 = 1;
}


void USB_Reconnect(void)
{
	int i;
	bCOMMONFlags.bits.bIN_ISR = 1;
	USB_ClearAllInts();
	USB_Disconnect();

	Delay(0xff);
	
	for (i=0;i<6;i++)
	{
		DelayMs(250);
	}
	
	USB_Connect();

	bCOMMONFlags.bits.bIN_ISR = 0;

}

void USB_Init_Unconfig(void)
{
	USBD12_SetEndpointEnable(0);	/* Disable all endpoints but EPP0. */
}

void USB_Init_Config(void)
{
	USBD12_SetEndpointEnable(1);	/* Enable  generic/iso endpoints. */
}