STM32f103VC+uCOS-II 调试设置断点进入HardFault_Handler

只看该作者 · 2015-8-20 11:51

遇到奇怪问题：调试时设置断点，100%进入HardFault_Handler；而全速跑没问题，功能正常。
折腾了一天，头大了。
芯片用的是STM32F103VCT6,uCOS-II 的版本是V2.91。没进行移植，直接用野火uCOS-II模板。
部分源代码：
void AppTaskAppMgr(void *p_arg)
{
INT8U err;
APPMSG_MSG_STRUCT_Def *pmsg;
(void)p_arg;

BeepDrvInit();
LampDrvInit();
ClockDrvInit();
AppMgrClock(OS_TRUE);

BeepDrvBeep(1,1);
while(OS_TRUE)
{
pmsg = (APPMSG_MSG_STRUCT_Def*)NULL;
pmsg = OSQPend(gpOSEventAppMgr,OS_TICKS_PER_SEC*50/1000,&err);
if(OS_ERR_NONE == err)
{
if(APPMSG_SYMBOL_WIFI == pmsg->symbol)
AppMgrNetAnalyse(pmsg);
else if (APPMSG_SYMBOL_APPMGR == pmsg->symbol)
AppMgrMsgAnalyse(pmsg);
else if(APPMSG_SYMBOL_PERIPHERAL == pmsg->symbol)
{
if(PERIPHERAL_DEV_ADDR_SendCard == pmsg->type)
AppMgrMsgSendCardAnalyse((void*)pmsg);
else if(PERIPHERAL_DEV_ADDR_GetCard == pmsg->type)
AppMgrMsgGetCardAnalyse((void*)pmsg);
else if(PERIPHERAL_DEV_ADDR_Gate == pmsg->type)
AppMgrMsgGateAnalyse((void*)pmsg);
else
AppMsgFreeMsg((void*)pmsg);
}
else

AppMsgFreeMsg((void*)pmsg);
}

BeepDrv();
LampDrv();
}

屏蔽掉红色的代码可随便函数内部设置断点，单步、全速运行都正常。没屏蔽设置断点后再全速跑则进入HardFault_Handler错误。单步跟在任务切换死掉。仔细检查了程序，未能发现内存溢出的可能。指针指向错误也未没发现。

OS_EVENT *gpOSEventAppMgr;

#define APPMGR_Q_NUM_MAX 20
static void *gpAppMgrQMsg[APPMGR_Q_NUM_MAX];
//创建管理事件消息队列
do
{
gpOSEventAppMgr=OSQCreate(gpAppMgrQMsg,APPMGR_Q_NUM_MAX);
}while(NULL == gpOSEventAppMgr);