I have a custom block of MAC addresses for a product containing an embedded ESP32, and am assigning Wifi, Bluetooth, and Ethernet MAC addresses. I understand that only the Wifi MAC address should be burned into the custom slot of efuse, and that the Bluetooth and Ethernet addresses are calculated as offsets.
However, I've run into an issue where my Wifi MAC address is set as "XX:XX:XX:02:05:FE", meaning the Bluetooth MAC address should be "XX:XX:XX:02:06:00". However, the device broadcasts Bluetooth (using protocomm component) as "XX:XX:XX:02:05:00". It seems to me that esp-idf (release 4.4) maybe isn't handling the rollover of MAC addresses? Or am I missing some soft standard that says not to assign a MAC within the possible offsets of a rollover?