到井号那里就无法再执行下去了，仿佛是在中断里出不来了，请高手帮忙看一看啊，小弟急啊！！！！
#include "option.h"
#include "def.h"
#include "44b.h"
#include "44blib.h"
#define WRDATA (1)
#define RDDATA (2)
#define SETRDADDR (3)
void Isr_Init(void);
void HaltUndef(void);
void HaltSwi(void);
void HaltPabort(void);
void HaltDabort(void);
void Wr24C040(U32 slvAddr,U32 addr,U8 data);
void Rd24C040(U32 slvAddr,U32 addr,U8 *data);
void __irq IicInt(void);
volatile int _iicDataCount;
volatile int _iicMode;
U8 _iicaddr;
U8 _iicdata;
void Main(void)
{
unsigned int i;
U8 data[256];
rSYSCFG=SYSCFG_8KB;
#if (PLLON==1)
ChangePllValue(PLL_M,PLL_P,PLL_S);
#endif
Isr_Init();
Port_Init();
Uart_Init(0,115200);
Uart_Select(0);
Delay(0); //calibrate Delay()
Led_Display(7);
Delay(1000); //calibrate Delay()
Led_Display(0);
Delay(5000); //calibrate Delay()
Led_Display(7);
Uart_Printf("
start
");
pISR_IIC=(unsigned)IicInt;
rINTMSK=~(BIT_GLOBAL|BIT_IIC);
rIICCON=0xaf;
rIICSTAT=0x10;
rIICADD=0x10;
Uart_Printf("Write test data into KS24C080
");
for(i=0;i<16;i++)
Wr24C040(0xa0,(U8)i,i);
for(i=0;i<16;i++)
data=0;
Uart_Printf("Read test data from KS24C080
");
for(i=0;i<16;i++)
Rd24C040(0xa0,(U8)i,&(data));
for(i=0;i<16;i++)
{
Uart_Printf("%2x ",data);
Uart_Printf("
");
}
}
void Wr24C040(U32 slvAddr,U32 addr,U8 data)
{
_iicMode=WRDATA;
_iicaddr=addr;
_iicdata=data;
_iicDataCount=3;
rIICDS=slvAddr;
rIICSTAT=0xf0;
############################################################
Uart_Printf("
test1
");
while(_iicDataCount!=-1);
}
void Rd24C040(U32 slvAddr,U32 addr,U8 *data)
{
_iicMode=SETRDADDR;
_iicaddr=addr;
_iicDataCount=2;
rIICDS=slvAddr;
rIICSTAT=0xf0;
while(_iicDataCount!=0);
_iicMode=RDDATA;
_iicDataCount=2;
rIICDS=slvAddr;
rIICSTAT=0xb0; //MasRx,Start
rIICCON=0xaf; //resumes IIC operation.
while(_iicDataCount!=0);
*data=_iicdata;
}
void __irq IicInt(void)
{
U32 i;
switch(_iicMode)
{
case WRDATA:
if(_iicDataCount==1)
{
_iicDataCount--;
Uart_Printf("_iicDataCount3=%d
",_iicDataCount);
rIICSTAT=0xd0;
rIICCON=0xaf;
Delay(1);
}
else if(_iicDataCount==2)
{
_iicDataCount--;
Uart_Printf("_iicDataCount2=%d
",_iicDataCount);
rIICDS=_iicdata;
for(i=0;i<10;i++);
rIICCON=0xaf;
}
else if(_iicDataCount==3)
{
_iicDataCount--;
Uart_Printf("_iicDataCount1=%d
",_iicDataCount);
rIICDS=_iicaddr;
for(i=0;i<10;i++);
rIICCON=0xaf;
}
break;
case SETRDADDR:
if(_iicDataCount==2)
{
_iicDataCount--;
rIICDS=_iicaddr;
for(i=0;i<10;i++);
rIICCON=0xaf;
}
else
{
_iicDataCount--;
}
break;
case RDDATA:
if(_iicDataCount==2)
{
_iicDataCount--;
_iicdata=rIICDS;
for(i=0;i<10;i++);
rIICCON=0x2f;//resumes IIC operation with NOACK.
}
else
{
_iicDataCount--;
rIICSTAT=0x90; //stop MasRx condition
rIICCON=0xaf; //resumes IIC operation.
Delay(1); //wait until stop condtion is in effect.
//too long time...
}
break;
default:
break;
}
}
void Isr_Init(void)
{
U32 i;
pISR_UNDEF=(unsigned)HaltUndef;
pISR_SWI =(unsigned)HaltSwi;
pISR_PABORT=(unsigned)HaltPabort;
pISR_DABORT=(unsigned)HaltDabort;
for(i=_RAM_STARTADDRESS;i<(_RAM_STARTADDRESS+0x20);i+=4)
{
*((volatile unsigned *)i)=0xEA000000+0x1FFE;
}
rINTCON=0x5; // Non-vectored,IRQ enable,FIQ disable
rINTMOD=0x0; // All=IRQ mode
rINTMSK|=BIT_GLOBAL|BIT_EINT3; // All interrupt is masked.
}
void HaltUndef(void)
{
Uart_Printf("Undefined instruction exception!!!
");
while(1);
}
void HaltSwi(void)
{
Uart_Printf("SWI exception!!!
");
while(1);
}
void HaltPabort(void)
{
Uart_Printf("Pabort exception!!!
");
while(1);
}
void HaltDabort(void)
{
Uart_Printf("Dabort exception!!!
");
while(1);
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