hciconfig is not showing my nrf52840 dongle on my linux terminal

[SanthoshN]

Hi,

I flashed my nrf52840 dongle by nrf Desktop connect app with ble-blinky hex file from nRF5_SDK_15.2.0_9412b96 SDK and I am able to connect to it from nrf connect ios app.

But unable to see the device on hciconfig.

Basing on this below link flashed the dongle with ble_connectivity_s140_usb_hci_pca10059.hex which I got from SDK instead of Zephyr BLE HCI_USB controller firmware as I didn't find its hex file.

devzone.nordicsemi.com/.../flashing-nrf52840-dongle-to-support-bluez

What should be done to make the dongle visible in hciconfig.. ??

[SanthoshN]

Any help is highly appreciated

[Vidar Berg]

nRF connect desktop uses serialized softdevice (Nordic BT stack) API to communicate with the connectivity chip, not HCI commands. In other words, ble_connectivity_s140_usb_hci_pca10059.hex will not work with the Bluez host. 

Do you have a programmer to program the dongle, or do you need to upload the FW through USB DFU? 

[SanthoshN]

Thanks for the reply.

I am using nrf connect desktop application to upload FW on my device.

After uploading fw on nrf52840, I am checking on linux terminal using hciconfig in which I am not able to find my device.

May I know what steps I have to follow to make my dongle as an hci usb and make it visible with the command hciconfig

[SanthoshN]

In Case ID: 211988 https://devzone.nordicsemi.com/f/nordic-q-a/37237/flashing-nrf52840-dongle-to-support-bluez

You mentioned to flash Zephyr BLE HCI_USB controller firmware on dongle.

Could you please point me to the FW as I was unable to locate the hex file.

You also mentioned to change the linker file. Please share the link of source code to change the FW start address.

Our goal is to connect dongle to raspberry Pi and use this dongle to perform BT operations instead of onboard BT chip using BLUEZ library.

Thankyou in advance.

[Vidar Berg]

Zephyr does not include any pre-compiled .hex files so the samples need to be built from source. I have built the example for you, but not verified if it works, see attached. 

zephyr.hex