{
        base    = 16;
        string += 2;
    }
    
    lastIndex = strlen(string) - 1;
    
    if(lastIndex<0)
        return -1;
    
    if(string[lastIndex]=='h' || string[lastIndex]=='H' )
    {
        base = 16;
        string[lastIndex] = 0;
        lastIndex--;
    }

    if(base==10)
    {
        result = atoi(string);
        result = minus ? (-1*result):result;
    }
    else
    {
        for(i=0;i<=lastIndex;i++)
        {
            if(isalpha(string[i]))
            {
                if(isupper(string[i]))
                    result = (result<<4) + string[i] - 'A' + 10;
                else
                    result = (result<<4) + string[i] - 'a' + 10;
            }
            else
                result = (result<<4) + string[i] - '0';
        }
        result = minus ? (-1*result):result;
    }
    return result;
}

//*****************************************************************************
//get a number for the uart
//*****************************************************************************
int Uart_GetIntNum_GJ(void)
{
    char string[16] ;
    char *p_string = string ;
    char c;
    int i = 0 ;
    int data = 0 ;

    while(   (c=getch()) != '\r'  )
    {
		if(c=='\b')		p_string--;
		else		*p_string++=c;
		
		putch( c ) ;
    }

    *p_string = '\0';

	i = 0 ;
	while( string[i] != '\0' )
	{
		data = data * 10 ;
		if( string[i]<'0'||string[i]>'9' )
			return -1 ;
		data = data + ( string[i]-'0' ) ;
		i++ ;		
	}	
	
	return data ;
}
//*****************************************************************************

//=====================================================================
void wait_print_end(void)
{
	int i;
	while(!(rUTRSTAT0 & 0x2));	
	i = 10000;
	while(i--);	
}
void putch(int data)
{
    if(whichUart==0)
    {
        if(data=='\n')
        {
            while(!(rUTRSTAT0 & 0x2));
            Delay(1);                 //because the slow response of hyper_terminal 
            WrUTXH0('\r');
        }
        while(!(rUTRSTAT0 & 0x2));   //Wait until THR is empty.
        Delay(1);
        WrUTXH0(data);
    }
    else if(whichUart==1)
    {
        if(data=='\n')
        {
            while(!(rUTRSTAT1 & 0x2));
            Delay(1);                 //because the slow response of hyper_terminal 
            rUTXH1 = '\r';
        }
        while(!(rUTRSTAT1 & 0x2));   //Wait until THR is empty.
        Delay(1);
        rUTXH1 = data;
    }   
    else if(whichUart==2)
    {
        if(data=='\n')
        {
            while(!(rUTRSTAT2 & 0x2));
            Delay(1);                 //because the slow response of hyper_terminal 
            rUTXH2 = '\r';
        }
        while(!(rUTRSTAT2 & 0x2));   //Wait until THR is empty.
        Delay(1);
        rUTXH2 = data;
    }       
}               

//====================================================================
void puts(char *pt)
{
    while(*pt)
        putch(*pt++);
}

//=====================================================================
//If you don't use vsprintf(), the code size is reduced very much.
typedef int *__va_list[1];
int vsprintf(char * /*s*/, const char * /*format*/, __va_list /*arg*/);

void printf(char *fmt,...)
{
    va_list ap;
    char string[256];

    va_start(ap,fmt);
    vsprintf(string,fmt,ap);
    puts(string);
    va_end(ap);
}

//=============================================================
char DbgPause(char *str)
{
	if(str)
		puts(str);
	else	
		puts("Debug breakpoint, press any key to continue...\n");
	return getch();
}

//**************************[ BOARD LED ]*********************************
void Led_Display(int data)
{
          //Active is low.(LED On)
          // GPF7  GPF6   GPF5   GPF4
          //nLED_8 nLED4 nLED_2 nLED_1
//    rGPFDAT = (rGPFDAT & 0xf) | !((data & 0xf)<<4);
    rGPFDAT = (rGPFDAT & ~(0xf<<4)) | ((~data & 0xf)<<4);    
}

void Led_Test( void )
{
	Uart_Printf( "\nLED TEST\n" );
	Uart_Printf( "Press 'ESC' key to Exit this program !\n\n" );
	while( Uart_GetKey() != ESC_KEY )
	{
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 8<<4 ) ;
		Delay( 3000 ) ;
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 4<<4 ) ;
		Delay( 3000 ) ;
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 2<<4 ) ;
		Delay( 3000 ) ;
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 1<<4 ) ;
		Delay( 3000 ) ;
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 0<<4 ) ;
		Delay( 3000 ) ;
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 1<<4 ) ;
		Delay( 3000 ) ;
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 2<<4 ) ;
		Delay( 3000 ) ;
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 4<<4 ) ;
		Delay( 3000 ) ;
		rGPFDAT = rGPFDAT & (~(0xf<<4)) | ( 8<<4 ) ;
		Delay( 3000 ) ;
	}
}

void Buzzer_Freq_Set( U32 freq )
{
	rGPBCON &= ~3;			//set GPB0 as tout0, pwm output
	rGPBCON |= 2;
		
	rTCFG0 &= ~0xff;
	rTCFG0 |= 15;			//prescaler = 15+1
	rTCFG1 &= ~0xf;
	rTCFG1 |= 2;			//mux = 1/8
	rTCNTB0 = (PCLK>>7)/freq;
	rTCMPB0 = rTCNTB0>>1;	// 50%
	rTCON &= ~0x1f;
	rTCON |= 0xb;			//disable deadzone, auto-reload, inv-off, update TCNTB0&TCMPB0, start timer 0
	rTCON &= ~2;			//clear manual update bit
}

void Buzzer_Stop( void )
{
	rGPBCON &= ~3;			//set GPB0 as output
	rGPBCON |= 1;
	rGPBDAT &= ~1;
}

//***************************[ BOARD BEEP ]*******************************
void Beep(U32 freq, U32 ms)
{
	Buzzer_Freq_Set( freq ) ;
	Delay( ms ) ;
	Buzzer_Stop() ;
}

/****************************************************************************
【功能說明】蜂鳴器PWM測試
****************************************************************************/
void BUZZER_PWM_Test( void )
{
	U16 freq = 2000 ;
	
	Uart_Printf( "\nBUZZER TEST ( PWM Control )\n" );
   	Uart_Printf( "Press +/- to increase/reduce the frequency of BUZZER !\n" ) ;
	Uart_Printf( "Press 'ESC' key to Exit this program !\n\n" );
	
	Buzzer_Freq_Set( freq ) ;

    while( 1 )
    {
		U8 key = Uart_Getch();

		if( key == '+' )
		{
			if( freq < 20000 )
				freq += 10 ;
				
			Buzzer_Freq_Set( freq ) ;
		}

		if( key == '-' )
		{
			if( freq > 11 )
				freq -= 10 ;
				
			Buzzer_Freq_Set( freq ) ;
		}
		
		Uart_Printf( "\tFreq = %d\n", freq ) ;
		if( key == ESC_KEY )
		{
			Buzzer_Stop() ;
			return ;
		}

	}

}


//*************************[ Timer ]********************************
void Timer_Start(int divider)  //0:16us,1:32us 2:64us 3:128us
{
    rWTCON = ((PCLK/1000000-1)<<8)|(divider<<3);  //Watch-dog timer control register
    rWTDAT = 0xffff;  //Watch-dog timer data register
    rWTCNT = 0xffff;  //Watch-dog count register

      // Watch-dog timer enable & interrupt  disable
    rWTCON = rWTCON |(1<<5) & !(1<<2);  
}

//=================================================================
int Timer_Stop(void)
{
    rWTCON = ((PCLK/1000000-1)<<8);
    return (0xffff - rWTCNT);
}


//*************************[ MPLL ]*******************************
void ChangeMPllValue(int mdiv,int pdiv,int sdiv)
{
    rMPLLCON = (mdiv<<12) | (pdiv<<4) | sdiv;
}


//************************[ HCLK, PCLK ]***************************
void ChangeClockDivider(int hdivn,int pdivn)
{
     // hdivn,pdivn FCLK:HCLK:PCLK
     //     0,0         1:1:1 
     //     0,1         1:1:2 
     //     1,0         1:2:2
     //     1,1         1:2:4
    rCLKDIVN = (hdivn<<1) | pdivn;    

    if(hdivn)
        MMU_SetAsyncBusMode();
    else 
        MMU_SetFastBusMode();
}


//**************************[ UPLL ]*******************************
void ChangeUPllValue(int mdiv,int pdiv,int sdiv)
{
    rUPLLCON = (mdiv<<12) | (pdiv<<4) | sdiv;
}


//*************************[ General Library ]**********************
void * malloc(unsigned nbyte) 
//Very simple; Use malloc() & free() like Stack
//void *mallocPt=Image$$RW$$Limit;
{
    void *returnPt = mallocPt;

    mallocPt = (int *)mallocPt+nbyte/4+((nbyte%4)>0); //To align 4byte

    if( (int)mallocPt > HEAPEND )
    {
        mallocPt = returnPt;
        return NULL;
    }
    return returnPt;
}

//-------------------------------------------------------------------
void free(void *pt)
{
    mallocPt = pt;
}