退出debug之后Timer精度变差

Hi,

大家好。我在试着用Timer模块来定时发送一个报文。在连接ICE，进入debug模式之后，一切都是正常，从sniffer上面能看到每10ms能收到一个包。但是当IAR退出debug模式之后，就变成每隔200ms~300ms左右才能收到一个包了。如果再次进入debug模式，又恢复成10ms了。MSA_SEND_PERIOD_EVENT是我创建的timer发送的事件。

我在Sample那个例程的基础上做了一点点改动。

大家帮我看看到底哪里有问题？我也试过把runMode改为PeriodContinue，但是也还是不行。

static void MSA_Init(void)
{UInt msaWaitPeriod = MSA_WAIT_PERIOD * 1000 / Clock_tickPeriod;UInt msaLed4Period = MSA_LED4_INITIAL_PERIOD * 1000 / Clock_tickPeriod;UInt msaSendTimerPeriod = MSA_WAIT_PERIOD * 1000; // In microseconds.Error_Block eb;Error_init(&eb);// Create TimerTimer_Params_init(&msaSendTimerParams);msaSendTimerParams.arg = (UArg)MSA_SEND_PERIOD_EVENT;msaSendTimerParams.period = 10000;msaSendTimerParams.periodType = Timer_PeriodType_MICROSECS;//msaSendTimerParams.periodType = Timer_PeriodType_COUNTS;msaSendTimerParams.runMode = Timer_RunMode_ONESHOT;msaSendTimerParams.startMode = Timer_StartMode_AUTO;timerHandle = Timer_create(Timer_ANY, MSA_ClockFxn, &msaSendTimerParams, &eb);
//msaSendTimerId = 1;
//Timer_construct(&msaSendTimer, msaSendTimerId, MSA_ClockFxn, &msaSendTimerParams, NULL);/* Open LED PIN driver *///ledPinHandle = PIN_open(&ledPinState, ledPinTable);/* Initialize clock wait parameters *///Clock_Params_init(&msaSendParams);/* Create a one-shot wait timer *///msaSendParams.period = 0;//msaSendParams.startFlag = FALSE;//msaSendParams.arg = (UArg)MSA_SEND_EVENT;//Clock_construct(&msaSend, MSA_ClockFxn, msaWaitPeriod, &msaSendParams);/* Initialize clock poll parameters */Clock_Params_init(&msaPollParams);/* Create a periodic poll timer */msaPollParams.period = msaWaitPeriod;msaPollParams.startFlag = FALSE;msaPollParams.arg = (UArg)MSA_POLL_EVENT;Clock_construct(&msaPoll, MSA_ClockFxn, msaWaitPeriod, &msaPollParams);/* Initialize clock poll parameters */Clock_Params_init(&msaLed4Params);/* Create a periodic poll timer */msaLed4Params.period = msaLed4Period;msaLed4Params.startFlag = TRUE;msaLed4Params.arg = (UArg)MSA_LED4_EVENT;Clock_construct(&msaLed4, MSA_ClockFxn, msaLed4Period, &msaLed4Params);/* Setup parameters for debounce timeout *///Clock_Params_init(&msaKeyParams);//msaKeyParams.period = 0;//msaKeyParams.startFlag = false;/* Keycallback for keys *///Clock_construct(&msaKey, MSA_keyCB, KEY_DEBOUNCE_TIMEOUT, &msaKeyParams);/* Initialize keys */MSA_initKeys();/* Register the current thread as an ICall dispatcher application* so that the application can send and receive messages.*/ICall_registerApp(&macAppEntity, &sem);/* Send a MAC init message */MAC_Init();/* initialize MAC features */
#ifdef MSA_FFDMAC_InitCoord();
#elseMAC_InitDevice();
#endif/* Reset the MAC */MAC_MlmeResetReq(TRUE);/* Initialize MAC beacon */
#ifdef MSA_FFDMAC_InitBeaconCoord();
#elseMAC_InitBeaconDevice();
#endif
 
#ifdef FEATURE_MAC_SECURITY/* Initialize the security part of the application */MSA_SecurityInit();
#endif /* FEATURE_MAC_SECURITY *//* Initialize the data packet */for (uint_least8_t i=MSA_HEADER_LENGTH; i<MSA_PACKET_LENGTH; i++){msa_Data1[i] = i-MSA_HEADER_LENGTH;}/* Initialize the echo packet */for (uint_least8_t j=0; j<MSA_ECHO_LENGTH; j++){msa_Data2[j] = 0xEE;}msa_BeaconOrder = MSA_MAC_BEACON_ORDER;msa_SuperFrameOrder = MSA_MAC_SUPERFRAME_ORDER;
#if defined( USE_FPGA )/* Send a fake UP key for FPGA to start the association */MSA_HandleKeys(Board_KEY_UP);
#endif /* USE_FPGA  */
}

static void MSA_Process(void)
{static uint8 index;static uint8 sequence;/* Forever loop */for (;;){ICall_ServiceEnum stackid;ICall_EntityID dest;TimacMSG_MacCbackEvent_t *pMsg;uint16_t events;//for(int i=0;i<1000000;i++);/* Wait for response message */if (ICall_wait(ICALL_TIMEOUT_FOREVER) == ICALL_ERRNO_SUCCESS){/* Retrieve the response message */if (ICall_fetchServiceMsg(&stackid, &dest, (void **) &pMsg)== ICALL_ERRNO_SUCCESS){if ((stackid == ICALL_SERVICE_CLASS_TIMAC) &&(dest == macAppEntity )){MSA_ProcessEvent(pMsg);}if (pMsg){ICall_freeMsg(pMsg);}}{UInt key = Hwi_disable();events = msa_events;msa_events = 0;Hwi_restore(key);}if(events & MSA_POLL_EVENT){MSA_McpsPollReq();}if(events & MSA_LED4_EVENT){PIN_setOutputValue(ledPinHandle, Board_LED4, !PIN_getOutputValue(Board_LED4));}if(events & MSA_KEY_EVENT){MSA_HandleKeys(keys);keys = 0;}if(events & MSA_SEND_PERIOD_EVENT){Timer_start(timerHandle);MSA_McpsDataReq((uint8*)msa_Data1,80,msa_DeviceRecord[index].isDirectMsg,msa_DeviceRecord[index].devShortAddr );}if(events & MSA_SEND_EVENT){/* Do it again */if (msa_State == MSA_SEND_STATE){/* Start sending */if (msa_IsCoordinator){if (MSA_PACKET_LENGTH >= MSA_HEADER_LENGTH){/* Coordinator sending to devices. Use the associated list of device to send out msg */msa_Data1[0] = MSA_PACKET_LENGTH;msa_Data1[1] = HI_UINT16(msa_DeviceRecord[index].devShortAddr);msa_Data1[2] = LO_UINT16(msa_DeviceRecord[index].devShortAddr);msa_Data1[3] = sequence;}/*MSA_McpsDataReq((uint8*)msa_Data1,MSA_PACKET_LENGTH,msa_DeviceRecord[index].isDirectMsg,msa_DeviceRecord[index].devShortAddr );*//* Reset the index if it reaches the current number of associated devices */if (++index == msa_NumOfDevices){index = 0;}}else{if (MSA_PACKET_LENGTH >= MSA_HEADER_LENGTH){/* Device sending to coordinator */msa_Data1[0] = MSA_PACKET_LENGTH;msa_Data1[1] = HI_UINT16(msa_CoordShortAddr);msa_Data1[2] = LO_UINT16(msa_CoordShortAddr);msa_Data1[3] = sequence;}/* MSA_McpsDataReq((uint8*)msa_Data1,MSA_PACKET_LENGTH,TRUE,msa_CoordShortAddr );*/}

#if defined (NV_RESTORE) && defined (FEATURE_MAC_SECURITY)msa_keyTable[0].frameCounter++;if(msa_keyTable[0].frameCounter % 1000 == 0){nv_write(MAC_NV_KEY_TABLE, 0, sizeof(msa_keyTable), &msa_keyTable);}
#endif /* defined (NV_RESTORE) && defined (FEATURE_MAC_SECURITY) */if (sequence++ == 0xFF){sequence = 0;}PIN_setOutputValue(ledPinHandle, Board_LED1, !PIN_getOutputValue(Board_LED1));}}}}
}

Yunjie ZHANG：

忘了说了，我现在用的芯片是CC2650

VV：

回复 Yunjie ZHANG:

建议用I/O翻转输出的方式，测试下timer的定时功能是否正确，然后再去无线数据的发送部分。