Problem connecting with Bluetooth UART sample with nRF Connect SDK on nRF5340

RE: Problem connecting with Bluetooth UART sample with nRF Connect SDK on nRF5340

Kenneth — Wed, 20 May 2020 10:48:12 GMT

I am not familiar enough, but I assume that when you include scan.h (and indirectly scan.c) to your project, that the compiler check the Kconfig.scan, which I can see have CONFIG_BT_SCAN_UUID_CNT.

RE: Problem connecting with Bluetooth UART sample with nRF Connect SDK on nRF5340

supershirobon — Fri, 15 May 2020 20:39:58 GMT

Hi, sorry for the delay.

Since I need access to the UART, I've been attempting to integrate the UART Central example into the hci_rpmsg example running on the network core.

Some of the header files are presenting issues.

bluetooth/gatt.h fails with

'CONFIG_BT_MAX_PAIRED' undeclared here (not in a function); did you mean 'CONFIG_BT_RX_PRIO'?

and bluetooth/scan.h fails with

'CONFIG_BT_SCAN_UUID_CNT' undeclared here (not in a function); did you mean 'CONFIG_BT_HCI_CMD_COUNT'?

Searching for those led me to https://docs.zephyrproject.org/1.13.0/reference/kconfig/CONFIG_BT_MAX_PAIRED.html and https://developer.nordicsemi.com/nRF_Connect_SDK/doc/0.4.0/nrf/reference/kconfig/CONFIG_BT_SCAN_UUID_CNT.html

BT_MAX_PAIRED was already in its Kconfig file, and BT_SCAN_UUID_CNT wasn't in its Kconfig file, so I manually added it as per the above link, but it didn't seem to do anything.

Where is the compiler looking for those definitions when it's compiling the project?

Thanks

RE: Problem connecting with Bluetooth UART sample with nRF Connect SDK on nRF5340

Kenneth — Mon, 04 May 2020 14:28:26 GMT

Not tried this myself, but are you using the latest examples on the master branch, and followed the description?
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/bluetooth/peripheral_uart/README.html
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/bluetooth/central_uart/README.html

[quote user=""]Another thing I will mention is that on the nRF53 side, none of the central UART sample seems to be printing to the console, the only output seems to be from the HCI RPMsg sample running on the network core, even though I would expect the central UART to be outputting as well.[/quote]

This is due to only one UART is currently functional and that one is used for the application UART (not debug):
https://infocenter.nordicsemi.com/topic/errata_nRF5340_EngA/ERR/nRF5340/EngineeringA/latest/anomaly_340_84.html