这么点破玩艺，昨天我为了学会它，花了六小时

#define GLOBAL_CLK 1
#include <stdlib.h>
#include <string.h>
#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#include "mmu.h"
#include "profile.h"
#include "memtest.h"
void LEDInit()
{
rGPBCON &= ~(3<<10 | 3<<12 | 3<<14 | 3<<16);
rGPBCON |= (1<<10 | 1<<12 | 1<<14 | 1<<16);
}
void LEDOpen()
{
rGPBDAT &= ~(1<<5 | 1<<6 | 1<<7 | 1<<8);
}
void LEDClose()
{
rGPBDAT |= (1<<5 | 1<<6 | 1<<7 | 1<<8);
}
int LEDOpenI( int index )
{
if( index <= 0 )
{
return 0;
}
if( index >= 5 )
{
return 0;
}
rGPBDAT &= ~( 1 << ( index + 4 ) );
return 1;
}
int LEDCloseI( int index )
{
if( index <= 0 )
{
return 0;
}
if( index >= 5 )
{
return 0;
}
rGPBDAT |= ( 1 << ( index + 4 ) );
return 1;
}
void BeepInit()
{
rGPBCON &= ~3;
rGPBCON |= 1;
}
void BeepStop()
{
rGPBDAT &= ~( 0x01 );
}
void BeepRun()
{
rGPBDAT |= 0x01;
}
__inline void ButtonProc1()
{
LEDOpenI( 1 );
}
__inline void ButtonProc2()
{
LEDOpenI( 2 );
}
__inline void ButtonProc3()
{
LEDOpenI( 3 );
}
__inline void ButtonProc4()
{
LEDOpenI( 4 );
}
__inline void ButtonProc5()
{
BeepRun();
}
__inline void ButtonProc6()
{
LEDClose();
BeepStop();
}
static void __irq ButtonCallBack()
{
if( rEINTPEND & ( 1 << 8 ) )
{
ButtonProc1();
rEINTPEND |= ( 1 << 8 );
ClearPending( BIT_EINT8_23 );
}
if( rEINTPEND & ( 1 << 11 ) )
{
ButtonProc2();
rEINTPEND |= ( 1 << 11 );
ClearPending( BIT_EINT8_23 );
}
if( rEINTPEND & ( 1 << 13 ) )
{
ButtonProc3();
rEINTPEND |= ( 1 << 13 );
ClearPending( BIT_EINT8_23 );
}
if( rEINTPEND & ( 1 << 14 ) )
{
ButtonProc4();
rEINTPEND |= ( 1 << 14 );
ClearPending( BIT_EINT8_23 );
}
if( rEINTPEND & ( 1 << 15 ) )
{
ButtonProc5();
rEINTPEND |= ( 1 << 15 );
ClearPending( BIT_EINT8_23 );
}
if( rEINTPEND & ( 1 << 19 ) )
{
ButtonProc6();
rEINTPEND |= ( 1 << 19 );
ClearPending( BIT_EINT8_23 );
}
}
void ButtonInit( unsigned unFunCallBack )
{
rGPGCON &= ~3;
rGPGCON |= 2;
rGPGCON &= ~( 3 << ( 2 * 3 ) );
rGPGCON |= ( 2 << ( 2 * 3 ) );
rGPGCON &= ~( 3 << ( 2 * 5 ) );
rGPGCON |= ( 2 << ( 2 * 5 ) );
rGPGCON &= ~( 3 << ( 2 * 6 ) );
rGPGCON |= ( 2 << ( 2 * 6 ) );
rGPGCON &= ~( 3 << ( 2 * 7 ) );
rGPGCON |= ( 2 << ( 2 * 7 ) );
rGPGCON &= ~( 3 << ( 2 * 11 ) );
rGPGCON |= ( 2 << ( 2 * 11 ) );
rEXTINT1 &= ~ 0xf;
rEXTINT1 &= ~ 0xf000;
rEXTINT1 &= ~ 0xf00000;
rEXTINT1 &= ~ 0xf000000;
rEXTINT1 &= ~0xf0000000;
rEXTINT2 &= ~ 0xf000;
rEINTPEND |= 1<<8;
rEINTPEND |= 1<<11;
rEINTPEND |= 1<<13;
rEINTPEND |= 1<<14;
rEINTPEND |= 1<<15;
rEINTPEND |= 1<<19;
rEINTMASK &= ~( 1 << 8 );
rEINTMASK &= ~( 1 << 11 );
rEINTMASK &= ~( 1 << 13 );
rEINTMASK &= ~( 1 << 14 );
rEINTMASK &= ~( 1 << 15 );
rEINTMASK &= ~( 1 << 19 );
pISR_EINT8_23 = ( ( 0 == unFunCallBack ) ? ( (unsigned)ButtonCallBack ) : ( unFunCallBack ) ) ;
rINTMSK &= ~(BIT_EINT8_23);
}
__inline void TimerCallBackProc()
{
if( rGPBDAT & ( 1 << 5 ) )
{
rGPBDAT &= ~( 1 << 5 );
}
else
{
rGPBDAT |= ( 1 << 5 );
}
}
static void __irq TimerCallBack()
{
ClearPending( BIT_TIMER0 );
TimerCallBackProc();
}
void TimerInit()
{
rTCFG0 = 49;
rTCFG1 = 0x03;
rTCNTB0 = 62500/2;
rTCMPB0 = 0;
rTCON |= (1<<1);
rTCON = 0x09;
rPRIORITY = 0x00000000;
rINTMOD |= 0x00000000;
ClearPending(BIT_TIMER0);
pISR_TIMER0 = (U32)TimerCallBack;
EnableIrq(BIT_TIMER0);
}
void MySetClock()
{
U32 UPLL;
U8 m, p, s, hdiv, pdiv;
m = 92;
p = 1;
s = 1;
hdiv = 2;
pdiv = 1;
rMPLLCON = (m<<12 | p<<4 | s);
rCLKDIVN = (hdiv<<1 | pdiv);
MMU_SetAsyncBusMode();
FCLK = ((m+8)*(FIN/100) *2)/((p+2)*(1<<s))*100;
HCLK = FCLK/4;
PCLK = HCLK/2;
UPLL = ((56+8)*FIN)/((2+2)*(1<<2));
UCLK = UPLL;
}

void Main()
{
MMU_Init();
LEDInit();
ButtonInit( 0 );
BeepInit();
MySetClock();
TimerInit();
while( 1 );
}