I am using sdk version 2.2.10, setting KW36 as the central device, and the scan configuration is as follows, I restart scanning every 100 and print the number of times scanned.
void BleApp_Start(bool_t addDevice)
{
if (!mScanningOn)
{
/* Set low power mode */
#if defined(cPWR_UsePowerDownMode) && (cPWR_UsePowerDownMode)
#if defined(MULTICORE_APPLICATION_CORE) && (MULTICORE_APPLICATION_CORE)
#if defined(gErpcLowPowerApiServiceIncluded_c) && (gErpcLowPowerApiServiceIncluded_c)
(void)PWR_ChangeBlackBoxDeepSleepMode(gAppDeepSleepMode_c);
#endif
#else
(void)PWR_ChangeDeepSleepMode(gAppDeepSleepMode_c);
#endif
#endif
/* Range: 0U = -30dbM to 31U = +3,5dBm, steplength ~ 1dbm */
Controller_SetTxPowerLevel(31U,gConnTxChannel_c); // = 3,5 dbm
if(addDevice)
{
gScanParams.filterPolicy = gScanAll_c;
}
else
{
gScanParams.filterPolicy = gScanWithWhiteList_c;
}
/* Start scanning */
(void)App_StartScanning(&gScanParams, BleApp_ScanningCallback, gGapDuplicateFilteringEnable_c, gGapScanContinuously_d, gGapScanPeriodicDisabled_d);
}
}
static void BleApp_ScanningCallback(gapScanningEvent_t* pScanningEvent)
{
static bool_t isScanTimeout = FALSE;
switch (pScanningEvent->eventType)
{
case gDeviceScanned_c:
{
mFoundDeviceToConnect = CheckScanEvent( &pScanningEvent->eventData.scannedDevice);
if (mFoundDeviceToConnect)
{
gConnReqParams.peerAddressType = pScanningEvent->eventData.scannedDevice.addressType;
FLib_MemCpy(gConnReqParams.peerAddress, pScanningEvent->eventData.scannedDevice.aAddress, sizeof(bleDeviceAddress_t));
bleResult_t Gap_StopScanning_status = Gap_StopScanning();
#if defined(gAppUsePrivacy_d) && (gAppUsePrivacy_d)
gConnReqParams.usePeerIdentityAddress = pScanningEvent->eventData.scannedDevice.advertisingAddressResolved;
#endif
bleResult_t App_Connect_status = App_Connect(&gConnReqParams, BleApp_ConnectionCallback);
#if Debug_Support
SEGGER_RTT_printf(0, "\r\nGap_StopScanning() status:0x%X \r\n", Gap_StopScanning_status);
SEGGER_RTT_printf(0, "\r\nApp_Connect() status:0x%X \r\n", App_Connect_status);
#endif
}
mFoundDevicesCount++;
}
break;
case gScanStateChanged_c:
{
mScanningOn = !mScanningOn;
/* Node starts scanning */
if (mScanningOn)
{
mFoundDeviceToConnect = FALSE;
#if Debug_Support
SEGGER_RTT_printf(0, "\r\nScanning...\r\n");
#endif
/* Start scanning timer */
// TMR_StartLowPowerTimer(mAppTimerId,
// gTmrLowPowerSecondTimer_c, gScanningTime_c, ScanningTimeoutTimerCallback, NULL);
isScanTimeout = FALSE;
TMR_StartLowPowerTimer(mAppTimerId,
gTmrLowPowerIntervalMillisTimer_c, 100, ScanningTimeoutTimerCallback, &isScanTimeout);
#if (cPWR_UsePowerDownMode)
Led1On();
#else
LED_StopFlashingAllLeds();
Led1Flashing();
#endif
}
/* Node is not scanning */
else
{
TMR_StopTimer(mAppTimerId);
#if Debug_Support
SEGGER_RTT_printf(0, "\r\nStopped scanning!\r\n");
#endif
if (mFoundDeviceToConnect)
{
// App_Connect(&gConnReqParams, BleApp_ConnectionCallback);
}
else
{
if (mCurrentLearingKeyNum != gInvalidKeyNumber_c && isScanTimeout == FALSE)
{
BleApp_KeyLearningStateMachineHandler();
}
else
{
BleApp_Start(true);
}
#if (cPWR_UsePowerDownMode)
Led1Off();
/* Go to sleep */
#if defined(MULTICORE_APPLICATION_CORE) && (MULTICORE_APPLICATION_CORE)
#if defined(gErpcLowPowerApiServiceIncluded_c) && (gErpcLowPowerApiServiceIncluded_c)
(void)PWR_ChangeBlackBoxDeepSleepMode(cPWR_DeepSleepMode);
#endif
#else
(void)PWR_ChangeDeepSleepMode(cPWR_DeepSleepMode);
#endif
#else
#endif
}
}
}
break;
case gScanCommandFailed_c:
{
#if Debug_Support
SEGGER_RTT_printf(0, "\r\nScan command failed! Reason = 0x%X \r\n", pScanningEvent->eventData.failReason);
#endif
}
break;
default:
{
; /* No action required */
}
break;
}
}
static void ScanningTimeoutTimerCallback(void* pParam)
{
static uint32_t cnt = 0;
static uint32_t oldFoundDevicesCount = 0;
bool_t *pTimeOut = (bool_t*)pParam;
cnt++;
*pTimeOut = TRUE;
// if (oldFoundDevicesCount != mFoundDevicesCount)
// {
// oldFoundDevicesCount = mFoundDevicesCount;
// }
#if Debug_Support
SEGGER_RTT_printf(0, "\r\nDeviceScanned... %d, %d ms\r\n", mFoundDevicesCount, cnt * 100);
#endif
/* Stop scanning */
if (mScanningOn)
{
Gap_StopScanning();
}
}
but after a while no new devices are scanned, resulting in no connection.
00> DeviceScanned... 16363, 125600 ms
00>
00> Stopped scanning!
00>
00> Scanning...
00>
00> DeviceScanned... 16373, 125700 ms
00>
00> Stopped scanning!
00>
00> Scanning...
00>
00> DeviceScanned... 16384, 125800 ms
00>
00> Stopped scanning!
00>
00> Scanning...
00>
00> DeviceScanned... 16384, 125900 ms
00>
00> Stopped scanning!
00>
00> Scanning...
00>
00> DeviceScanned... 16384, 126000 ms
00>
00> Stopped scanning!
00>
00> Scanning...
00>
00> DeviceScanned... 16384, 126100 ms
00>
00> Stopped scanning!
00>
00> Scanning...
00>
00> DeviceScanned... 16384, 126200 ms
00>
00> Stopped scanning!
00>
00> Scanning...
00>
00> DeviceScanned... 16384, 126300 ms
00>
00> Stopped scanning!
00>
00> Scanning...
00>
00> DeviceScanned... 16384, 126400 ms
Hope to get your help.
