Penguin ID - Question about HCI USB

[zachary.davis]

My customer Penguin ID has the following question about HCI USB for the nRF54LM20A. He claims this is only on the old Zephyr stack and not on the new one. Can you please comment on this issue? Is there a misunderstanding in his knowledge? I thought the HCI USB zephyr project could be targeted towards any Nordic BLE MCU, is this is not the case?

From Penguin ID: 

Is there any development from Nordic on HCI USB working on nRF54?

Like this:

HCI USB — Zephyr Project Documentation

But instead of old stack, for the new one.

[Hung Bui]

Hi Zachary, 

Could you give me more information about why you think hci usb is not supported on nRF54LM20A ? Which is the old one and which is the new one ? 

Please be noted that we don't develop the Zephyr BLE stack, what we recommend is the Nordic's Softdevice BLE stack. I did a quick test here and can build the hci_usb sample fine with nrf54lm20dk/nrf54lm20a/cpuapp board. (NCS v3.2.0)

[zachary.davis]

Hello Hung, just to clarify this is for my customer (I am an FAE at Avnet). The customer is the one saying that HCI USB seems to be only supported on the "old stack".

I will follow up with them and get back to you with comments.