I don't think there is way to check the type of wireless stack once installed as it would be located in a secure protected area which is not accessible by the application.
I would like to correct my statement above.
There is indeed a way to get conformation data on the FW currently running on the M0+ core, calling the SHCI_GetWirelessFwInfo() command.
SHCI_GetWirelessFwInfo() command reads the informations relative to the loaded wireless binary.
A description of this command is available in AN5289 chapter 4.10 Device information table. Returned information is the Wireless firmware version, the Wireless Firmware Memory required by the wireless firmware and the Wireless firmware information.
Thanks. Is there (beside ReleaseNote.html) any application note that describes in detail characteristic and functionality of each firmware binaries and its API?
Yes, I asked of type of BLE firmware. Now I'm using the HCILayer_fw with stm32wb55VGY on Zephyr. And I would want to know that is there more appropriate firmware. And is there (over ReleaseNotes.html) some detailed description of characteristics of particular binaries of wireless stack for this MCU?
It is located there STM32Cube_FW_WB_V1.13.0\Projects\STM32WB_Copro_Wireless_Binaries\STM32WB5x but you may have to apply the V1.13.1 which is a patch containing this stack.
Extract from the release notes:
tm32wb5x_BLE_Stack_full_extended_fw.bin
Full BLE Stack 5.2 certified : Link Layer, HCI, L2CAP, ATT, SM, GAP and GATT database
GAP peripheral, central (LL Master up to 6 links with Slave up to 2 links/ Master up to 7 links with Slave up to 1 links/ Master up to 8 links )
BLE Extended advertizing (under application flag selection with predefined fixed configuration: 2 sets maximum number, 1650 bytes maximum advertizing data length)
GATT server, client
Data length extension
2Mbit PHY / PHY update
Privacy
White list
Legacy Pairing, LE secure connections
HCI interface (full, like stm32wb5x_BLE_HCILayer_fw.bin)
Direct Test Mode
L2CAP connection oriented channels support (IP over BLE enabler)
Channel selection #2 (under application flag selection)