usbdmain.c

LPC23XX USB测试代码

/*****************************************************************************
 *   usbmain.c:  main C entry file for NXP LPC23xx/24xx Family Microprocessors
 *
 *   Copyright(C) 2006, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2006.07.20  ver 1.00    Prelimnary version, first Release
 *
******************************************************************************/
#include "LPC23xx.h"                        /* LPC23xx/24xx definitions */
#include "type.h"
#include "irq.h"
#include "target.h"
#include "timer.h"
#include "lcd.h"

#include "usb.h"
#include "usbcfg.h"
#include "usbhw.h"
#include "usbcore.h"
#include "hiduser.h"

extern volatile DWORD SuspendFlag;
extern volatile DWORD timer_counter;

BYTE InReport;			/* HID Input Report */
						/*   Bit0:    Button */
						/*   Bit1..7: Reserved */
BYTE OutReport;			/* HID Out Report */
						/*   Bit0..7: LEDs */
/*
 *  Get HID Input Report -> InReport
 */
void GetInReport (void) {
  if ( FIO2PIN & (1 << 10) ) {	/* Check if push button, EXTINT0, is pressed */
    InReport = 0x00;
  } else {
    InReport = 0x01;
  }
}

/*
 *  Set HID Output Report <- OutReport
 */
void SetOutReport (void) {
  
  FIO2CLR = 0x00FF;
  FIO2SET = OutReport;	
}

/*****************************************************************************
**   Main Function  main()
******************************************************************************/
int main (void)
{
	int i;
#if POWERDOWN_MODE_USB_WAKEUP
    DWORD WakeupFlag = 0;

    init_timer(TIME_INTERVAL);		/* the timer is for USB suspend and resume */
#endif

    USB_Init();					/* USB Initialization */
    USB_Connect(TRUE);			/* USB Connect */

	FIO2DIR |= 0x000000FF;		/* LEDs, port 2, bit 0~7 output only */

#if POWERDOWN_MODE_USB_WAKEUP
	INTWAKE |= (1 << 5);		/* Wake up from USB activities */
#endif
  lcd_init();
  lcd_clear();
  lcd_print ("   LPC2378-EK   ");
  set_cursor (0, 1);
  lcd_print (" www.po-star.com");
//================================
  for (i = 0; i < 20000000; i++);       /* Wait for initial display           */
//================================
  lcd_init();
  lcd_clear();
  lcd_print ("   LPC2378-EK   ");  
  set_cursor (0, 1);
  lcd_print ("  USBHID  DEMO  ");  
/********* The main Function is an endless loop ***********/ 
    while( 1 ) 
    {
#if POWERDOWN_MODE_USB_WAKEUP
	if ( WakeupFlag == 1 )
	{
	    WakeupFlag = 0;
		ConfigurePLL();
		USB_Init();                               /* USB Initialization */
		USB_Connect(TRUE);                        /* USB Connect */
	}

	/* bit 8 is USB NeedClk bit. */
//	if ( (SuspendFlag == 1 ) && (USB_INT_STAT & (1 << 8)) == 0x0 )
	if ( SuspendFlag == 1 )
	{
		if ( timer_counter > 200 )
		{
			HC_CMD_STAT |= 0x01;
			OTG_CLK_CTRL = 0x00;
			while ( USB_INT_STAT & (1 << 8) );
			WakeupFlag = 1;	
			PCON = 0x2;
		}
	}
#endif
    }
    return 0;
}

/******************************************************************************
**                            End Of File
******************************************************************************/