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  • Case ID: 303632
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nRF52840 dongle error: PKT_SEND_MAX_RETRIES_REACHED

Gianpaolo

Hello,
I am trying to read data from a BLE training machine to use as input for another application we want to build. I installed nRF Connect on my android mobile and I was able to export a log with all the data I need, so we tought we could buy an nRF52840 Dongle to directly establish the connection between my pc and the BLE spinning bike.

So now I am trying to set the dongle up, but I am getting a timeout error when I select the device in nRF Connect for Desktop (v4.0.4).
Until now I tried on two Windows machines (Win10 and Win11), with the same results:

09:25:46.563 Using nrf-device-lib-js version: 0.4.4
09:25:46.563 Using nrf-device-lib version: 0.10.3
09:25:46.563 Using nrfjprog DLL version: 10.15.1
09:25:46.564 Using JLink version: JLink_V7.66a
09:25:46.628 Updated list of uuids with data from https://github.com/NordicSemiconductor/bluetooth-numbers-database/tree/master/v1

09:27:40.134 Selected device with s/n FDC86C66D62C
09:27:40.140 Device setup completed
09:27:40.141 Connectivity firmware version: ble-connectivity 4.1.4+Mar-11-2021-08-36-04. SoftDevice API version: 5. Baud rate: 1000000.
09:27:40.142 Opening adapter connected to COM5
09:27:41.100 Successfully opened COM5. Baud rate: 1000000. Flow control: none. Parity: none.
09:27:41.107 Reset performed on adapter COM5
09:27:42.919 Received status with code 0 PKT_SEND_MAX_RETRIES_REACHED, message: 'No response from device. Tried to send packet 6 times.'
09:27:44.102 serial port COM5 closed.
09:27:44.132 Error occured when opening port. Errorcode: NRF_ERROR_TIMEOUT (0xd)

As a result I can't obviously connect to the BLE machine.
In general, when I plug the dongle in the USB port, a red led will shortly blink, then a green led remains fixed until I disconnect the device from the USB port. I think this is the expected behaviour.

I am sure I'm missing something, but I have no clues. I've been looking for answers on infocenter (eg. infocenter.nordicsemi.com/index.jsp but I couldn't solve my problem.

Thanks for your help.

Gianpaolo

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  • 0

    Hi Gianpaolo

    I just tested this on an nRF52840 Dongle myself, and did not have any trouble. I have the same version of all the apps as you do, so it shouldn't be an issue there. When selecting the Dongle, did you press "Yes" when this message popped up? If not, that's necessary.

    To make sure it is programmed. Press the side mounted button on the Dongle after you've plugged it in to put it in bootloader mode. There should be a pulsing red LED to indicate this and it will show up in the "SELECT DEVICE" tab as Open DFU Bootloader.

    Best regards,

    Simon

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  • 0

    Hi Gianpaolo

    I just tested this on an nRF52840 Dongle myself, and did not have any trouble. I have the same version of all the apps as you do, so it shouldn't be an issue there. When selecting the Dongle, did you press "Yes" when this message popped up? If not, that's necessary.

    To make sure it is programmed. Press the side mounted button on the Dongle after you've plugged it in to put it in bootloader mode. There should be a pulsing red LED to indicate this and it will show up in the "SELECT DEVICE" tab as Open DFU Bootloader.

    Best regards,

    Simon

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