NRF5340: iso_broadcast_receiver error

[nyovelt]

It has an iso_broadcast error, by GDB, it is in function   `bt_le_scan_start()` where it throws an error. The error I cannot see through since the compiler option can't adjust to O1.

nRF Connect SDK V1.8.0

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[Simonr]

Hi

I was able to reproduce this on my end as well, and have asked one of our experts on this matter for some more information. I'll get back to you when I hear from them.

In the meantime, you could check out the third party Packetcraft Controller that features a full BLE 5.2 feature set including isochronous channel support here. I'm not sure the Zephyr controller yet fully supports isochronous channels.

Best regards,

Simon

[Simonr]

Hi

The synchronized receiver is supported, and will be able to receive data. I'm able to run the sample in receiver mode with the nRF52840 DK for example. For the nRF5340, you need to enable ISO support in the Kconfig of the hci_rpmsg as well, as the Net core also need to support this feature to work correctly.

Please note that ISO is still a work in progress, and the implementation of this Kconfig will be added when ready.

Best regards,

Simon

[nyovelt]

I have changed to nRF52840 but still have problems. The following is the COM output and my config.

[Simonr]

I see you have changed to the iso_connected_benchmark now, and that it is failing there. The iso_broadcast_benchmark receiver mode is able to run on my end. The ISO broadcaster should provide a pending TX data path, and will currently only transmit dummy data to allow the receiver to maintain synchronization. 

I'm sorry that you're having trouble with these sample projects, but as mentioned, all features have yet to be added. I would recommend checking out the Packetcraft controller at the current point in time.

Best regards,

Simon