Wireless MCUのトピックRe: QN9030 notification problem

QN9030 notification problem

Minh_Thien — Tue, 06 Jul 2021 03:38:08 GMT

Hi,

I'm working on QN9030 chipset and using QN9090 proximity_bm example but I facing a problem: the board can't notification after connecting to my phone.

I tried to debug a see the cccd is written, the code I printed debug below:

static void BleApp_GattServerCallback (deviceId_t deviceId, gattServerEvent_t* pServerEvent) { switch (pServerEvent->eventType) { case gEvtAttributeWrittenWithoutResponse_c: { } break; #if defined CPU_JN518X case gEvtAttributeWritten_c: { } break; #endif case gEvtCharacteristicCccdWritten_c: APP_DEBUG_TRACE("-->Event.handle: %d\r\n", pServerEvent->eventData.charCccdWrittenEvent.handle); switch(pServerEvent->eventData.charCccdWrittenEvent.handle) { case cccd_battery_level: APP_DEBUG_TRACE("-->new_cccd_battery: %d\r\n", pServerEvent->eventData.charCccdWrittenEvent.newCccd); } break; default: ; /* For MISRA compliance */ break; } }

I think cccd is 1 means the notification is enabled but in the function Bas_SendNotifications I print out the Gap_CheckNotificationStatus result: 1 (fail) and isNotifActive.

static void Bas_SendNotifications ( basConfig_t *pServiceConfig, uint16_t handle ) { uint16_t handleCccd; bool_t isNotifActive; uint8_t mClientId = 0; bleResult_t ret = gBleSuccess_c; /* Get handle of CCCD */ if (GattDb_FindCccdHandleForCharValueHandle(handle, &handleCccd) == gBleSuccess_c) { for (mClientId = 0; mClientId < pServiceConfig->validSubscriberListSize; mClientId++) { if (pServiceConfig->aValidSubscriberList[mClientId]) { ret = Gap_CheckNotificationStatus(mClientId, handleCccd, &isNotifActive); PRINTF("mClientId = %d,handleCccd = %d, ret = %d, isNotifActive = %d\r\n",mClientId, handleCccd, ret, isNotifActive); // if (ret == gBleSuccess_c && TRUE == isNotifActive) // { // (void)GattServer_SendNotification(mClientId, handle); // } // PRINTF("notify_result: %d\r\n", GattServer_SendInstantValueIndication(mClientId, handle, 1, value++)); PRINTF("notify_result: %d\r\n",GattServer_SendNotification(mClientId, handle)); } } } }

I don't understand why. Can you help me explain and how to resolve this problem?

thank you.

Re: QN9030 notification problem

nxf56274 — Wed, 07 Jul 2021 02:24:23 GMT

Hi,

Gap_CheckNotificationStatus's result means that you phone doesn't enable the ccd function. What's the app do your phone use?

Have a great day,
TIC

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Re: QN9030 notification problem

Minh_Thien — Wed, 07 Jul 2021 02:53:19 GMT

Hi,

thanks for your feedback.

I'm using NRFconnect to test. I think the app is ok because when I press the notification in the app then the gEvtCharacteristicCccdWritten_c event is triggered you can see the picture I posted.

Re: QN9030 notification problem

nxf56274 — Wed, 07 Jul 2021 02:56:45 GMT

Hi,

Please use our app 'IOT toolbox' to test the example.

Have a great day,
TIC

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