BlueNRG missing LE Advertising Report Event

alessandro morniroli · ‎2022-02-28

Hi,

the same question was already reported in this topic some years ago.

https://community.st.com/s/question/0D50X00009Xkh0DSAR/bluenrg-missing-le-advertising-report-event

I have the same problem: if I use HCI standard commands, (HCI_LE_SET_SCAN_PARAMETERS & HCI_LET_SET_SCAN_ENABLE) I'm not receiving LE advertising report event.

I'm usign a x-nucleo-bnrg2a1 board w/ BlueNRG GUI 4.2 to send HCI command.

Question: is it possible to use RAW HCI standard commands or only ACI commands are implemented? I'm getting correctly HCI_COMMAND_COMPLETE_EVENT but no LE advertising report event.

This is my setup:

BlueNRG-2 HW 1.2
BlueNRG-2 FW v2.1e - DTM SPI v3.3.0
Motherboard FW v1.6

Alessandro

Sebastien DENOUAL · ‎2022-02-28

Hi @alessandro morniroli ,

I did a quick test using my board and PC GUI and confirm by default I'm receiving advertising reports (ACI commands).

For test purpose, you may use "ACI utilities" test panel :

1- "Init devices" - you can select roles "All"

2- In central mode : you can select "Scanning" -> General Discovery procedure.

This

In this case, are you receiving Advertising reports ?

In case of HCI standard commands :

To use the HCI commands the BlueNRG-2 stack shall be configured like "LL_WITHOUT_HOST". This mode enable all the HCI commands and events.

So, to execute the scan using the HCI commands, you need to follow the sequence below:

1) Reset the BlueNRG, button "HW Reset" of the GUI

2) ACI_HAL_WRITE_CONFIG_DATA with parameters:

Offset=0x2C (this offset is to enable the LL_Without_Host mode)

Length=1

Value=1

3) HCI_LE_SET_SCAN_PARAMETERS with parameters:

LE_Scan_Type=0x0 for Passive Scanning or 0x01 for Active Scanning

LE_Scan_Interval=0x7D0 (for example)

LE_Scan_Window=0x7D0 (for example)

Own_Address_Type=0x00

Scanning_Filter_Policy=0x00

4) HCI_LE_SET_SCAN_ENABLE with parameters:

LE_Scan_Enable=0x01

Filter_Duplicates=0x00 (for example)

With this sequence you can read the EVENT with the ADV report information.

Remember, when the BlueNRG-1 enters in LL_Without_Host mode the GATT commands are DISABLED.

Please let me know if is OK.

Regards,

Sebastien.

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Sebastien DENOUAL · ‎2022-02-28