hci uart sample asserts

[Ypenburg]

Hi, I use the hci-uart sample (4.3.99) on an nRF54L15 board. The host is an esp. The setup seems to work fine, but every now and then the Nordic board gives an assert:

ASSERTION FAIL [next] @ WEST_TOPDIR/zephyr/subsys/bluetooth/controller/ll_sw/nordic/lll/lll.c:952

Tried all kind of config changes to get rid of the assert, tried to minimize traffic to the connected ble devices, but it did not help. It seems to occur at specific moments, e.g. when exchanging mtu. What am I doing wrong here?

[Kazi Afroza Sultana]

Hello,

I have added the configurations from the prj.conf file from your 3808.prj.con in the hci_uart application. NCS version 3.1.1. There was no errror in the build.

How have you used this ectra.conf file? Which NCS version you are using?

Thanks.

BR
Kazi

[Ypenburg]

Hi,

You don't get an error while compiling.

When you run the build and let the host scan for advertising devices and connect to these devices, the error will occur randomly after reading data (from whatever characteristic). I have to wait for about 6m on average when the host continuously connects, reads, disconnects.

You have to use the long range phy for scanning, advertising and connecting.

Thanks,

Renger