硬件错误中断，求解！！！

废墟崛起之厦 · 发表于 2014-11-18 13:54:12

我用结构体指针：结构体定义如下

__packed typedef struct
{
u8 DeviceCaption;//?è±?????
u16 DeviceAddress;//?è±????·
u8 MainMenuNum;//?÷??????
u8 CmdWord[4];//?ü??×?
u8 DataCaptionSize;//×????????ó??
}ComFrameCaptionTypDef;//?¨???????ì???é????--?????é?·?????ó?®??×???

__packed typedef struct
{
u8 DataBuf[2];
u8 DefaultFlag;
}ComTestDataCapTypeDef;//?¨?????????é?????????¨??

__packed typedef struct
{
u8 DataBuf[4];
u8 DefaultFlag;
}RegCodeDataCapTypeDef;//×??á?????é?????????¨??

__packed typedef struct
{
u8 DataBuf[4];
u8 DefaultFlag;
}StaticDataCapTypeDef;//???????????é?????????¨??

__packed typedef struct
{
u8 DataBuf[4];
u8 DefaultFlag;
}ShineDataCapTypeDef;//???????????é?????????¨??

__packed typedef struct
{
u8 DataBuf[4];
u8 DefaultFlag;
}SleepDataCapTypeDef;//???????????é?????????¨??

__packed typedef struct
{
u8 DataBufStatic[6];//????????
u8 DataBufActive[24];//????????
u8 DefaultFlag;
}CycelDataCapTypeDef;//???·???????é?????????¨??

__packed typedef struct
{
u8 DataBuf[4];
u8 DefaultFlag;
}CurrentBreakDataCapTypeDef;//???÷???????????é?????????¨??

__packed typedef struct
{
u8 DataBuf[8];
u8 DefaultFlag;
}CommunicationErrorTypeDef;//?¨???í?ó?????¨??

__packed typedef struct
{
ComFrameCaptionTypDef* ComFrameIniStruct;
ComTestDataCapTypeDef* ComTestDataCapIniStruct;
RegCodeDataCapTypeDef* RegCodeDataCapIniStruct;
StaticDataCapTypeDef* StaticDataCapIniStruct;
ShineDataCapTypeDef* ShineDataCapIniStruct;
/*SleepDataCapTypeDef* SleepDataCapIniStruct;
CycelDataCapTypeDef* CycelDataCapIniStruct;
CurrentBreakDataCapTypeDef* CurrentBreakDataCapIniStruct;
CommunicationErrorTypeDef* CommunicationErrorTIniStruct;*/

}FrameProtocolTypeDef;//?ì?????á?????¨??

然后在主函数里定义一个结构体测试：FrameProtocolTypeDef FrameProInitSttuct;
FrameProInitSttuct.ComFrameIniStruct->DeviceCaption=20;
FrameProInitSttuct.StaticDataCapIniStruct->DefaultFlag=0;

经测试发现，在结构体中定义的结构体指针大于4个（上面紫色部分）的时候，程序就进入硬件错误中断。
难道是指针溢出？？
求大侠解答!