Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Jared — Tue, 23 Aug 2022 13:41:05 GMT

Hi,

I understand, and I really would want to get to the bottom of this. It would be of huge help if you're able to verify that the data is sent correctly from the nRF to the UART bridge. If you have a logical analyzer, then you can take a trace of the UART lines that is connected to the bridge and verify that the correct data is sent.

regards
Jared

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Piwy — Thu, 18 Aug 2022 15:30:48 GMT

The probleme is that i need to exeperiment more with the board EV-BT840XE because it have a FEM and i need it in my porject for the long range

I need to do manysome of your collegue have more information about this kind of problem keep me in touch please

Regards,

Pierre-Yves

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Jared — Wed, 17 Aug 2022 08:23:55 GMT

Hi,

Ok, then I would just continue using the bridge that works. Alternatively, you can contact the manufacturer of the bridge and ask them for suggestions.

regards

Jared

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Piwy — Tue, 16 Aug 2022 14:32:49 GMT

Sry for the delay i was in holidays...

I can't verify it, i just know that with a nRF52840 (custom board) it works and that the only difference between them is the bridge

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Jared — Thu, 04 Aug 2022 13:48:36 GMT

Hi,

Are you able to verify that the data is sent from the nRF to UART-to-USB bridge by probing the TX and RX? At least that would clarify whether the data is actually sent from the nRF on the correct pins.

regards

Jared

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Piwy — Wed, 03 Aug 2022 13:54:18 GMT

I don't really have a good experience with it also that's why i make a ticket here.

Yes SW6 is ON, i also used a Voltmeter to check SW6 on Both RX and TX

regards

Pierre-Yves

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Jared — Wed, 03 Aug 2022 11:12:00 GMT

Hi,

I'm not sure to be honest. The bridge is a third party product which I don't really have any experience with. Doing a quick look at the schematics, I see that there is a switch SW6 on the UART RX and TX lines. Have you turned this on?

regards

Jared

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Piwy — Tue, 02 Aug 2022 13:10:12 GMT

even *

Thanks you for your support

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Piwy — Tue, 02 Aug 2022 13:08:51 GMT

I used nRF52840 on two different custom board, one with USB directly connect to the nrf52840 (this is the board that i'm succefully able to use pc-ble-driver), one with a UART to USB Bridge FT234XD, it's not the same but it UART works with it and not with the one of the BT840XE (CP2102) event if it's connected the same way, that's why i don't understand...

The first custom board with USB directly connected works as a dongle and not as the others board, i can't use the same connectivity for the others.

But if UART works on the board with the UART to USB Bridge FT234XD, it's strange that it's not working with ev-bt840xe, i think i miss something basic or maybe the bridge isn't compatible , i don't know , do you have any idea about this ?

RE: Use PC-BLE-DRIVER on FENSTEL EV-BT840XE (nRF52840 MCU)

Jared — Tue, 02 Aug 2022 12:46:17 GMT

Hi,

[quote user=""]I am successfully able to use pc-ble-driver on nRF52840 by using pre-compiled files or by use patch for SDK 415.3 with ble_connectivity\pca10056\ser_s140_usb_hci example.[/quote]

Did you use the nRF52840 development kit or the nRF52840 on a custom board?

[quote user=""]

I think for EV-BT840XE to work with pc-ble-driver i need to use connectivity\ble_connectivity\pca10056\ser_s140_uart example because ev-bt840xe have a bridge USB to UART

1 ) => Could you confirm that it's the example i need to use or not ?

First of all i don't succed in the use of UART in this board, i tried to use app_uart example with PIN_RX =11 and PIN_TX=12 according to the schematics of the EV-BT840 board,

I don't understand how to use Uart with EV-840xe and if it's the right way of think to use pc-ble-driver with it ?

Can you help me understand how to configure this board for this use ?

[/quote]

The schematics shows a UART to USB bridge somewhat similar to the one on the development kit. I therefore think you should use the same file that you use for the DK for the Evaluation kit.

regards

Jared