hi Hayashi,

If you are using the BlueGecko App for OTA, you will find that after finishing the OTA and press the "Done" button on the UI, the App will terminate the Bluetooth connection.
So you should able to set a flag in the case "SWITCHED_MULTIPROTOCOL_OTA_DFU_COMMIT", and then start the reboot and install from the default slot in the event "gecko_evt_le_connection_closed_id".

Thanks

hi Tsung-Yi,

No, that's impossible. I think you can get some hints from the KBA_BT_0917. 

Thanks

hi Rohan,

Yes, please see the KBA_BT_0401, it guides us how to optimize the power consumption in BLE application. 
Regarding to the accelerometer, it can support motion triggered wake-up mode, the INTx of the accelerometer supposed can be used for waking up the BGM121. You can refer to KBA_BT_0305 for handling gpio interrupt triggered by the accelerometer.

Thanks

The EFR32BG1 or EFR32BG1 based module does not support Bluetooth 5 AE (Advertisement Extensions)，Please get the comparison among the SoC or modules from the KBA_BT_0101.

Please note that the EFR32 can block some channels manually as well.

hi Hayashi,

In fact, the default attribute value of the "gattdb_upload_slot" in the local GATT database is 0, so the uploader will upload the received image to the first slot by default.
Of course you can delete the characteristic of the "Upload Slot" to disable the slot section. And fill the "otaDfuSlotId" with the fixed value "0".

Thanks

hi Hayashi,

If you are using the BGM121 radio board (BRD4302A, equipped with an 8 Mbit Macronix MX25R SPI flash), please refer to the enclosed project that has application uploader. It works well on my side.

Thanks

hi Jared,

Sorry, there is no available library for Xamarin at present. If need to communicate the BGX with smartphone, the BGXCommander example is the recommended starting point.

Thanks

I have no clear idea about the schedule, please feel free to contact with our sales team for such information. BTW, I have inputted this request and will keep you be updated.

There is no standard SPP service in Bluetooth Smart. We have a SPP example demonstrates how to implement transparent serial data connection between two Blue Gecko devices.

5. Bluetooth SDK 2.11.5.0 -> SoC-Empty
6. Build SoC-Empty and run create_bl_files.bat

Did you just create a SoC-empty project by taking the example as template, and then build and flash it? And you should combine the bootloader  with the application image (.s37, hex or bin) rather than the .gbl file in step 7 above.
For accessing the external SPI flash with the uploader, you should follow the step 5-16 of the "Implementation" section in "KBA_BT_0802", create new OTA service for slot management, copy the necessary files to your application project to enable the SPI flash access ability.

Is there any debugging method in OTA uploader to figure out what's going on?

-> Yes, after finish the uploader implementation, you can add some debug log as the code snippet below in the ota_dfu_multislot.c to indicate if the uploader has received the data and also write them to the SPI flash successfully.

      /*****  OTA Data  *****/
      if (characteristic == gattdb_ota_data) {
        OTAErrorCodes_t responseVal = OTA_NoError;

        ota_data_len += charLen;

        responseVal = bleOtaDfuDataReceived(charLen, charValueData);

        printLog("Received %d bytes, total length %d, att_opcode = %d\r\n", charLen, ota_data_len, writeRequestAttOpcode);

        // Send back response in case of data was sent as a write request
        if (BLE_OPCODE_GATT_WRITE_REQUEST == writeRequestAttOpcode) {
          gecko_cmd_gatt_server_send_user_write_response(connection, characteristic, responseVal);

        }
      }