BM71 GAP Peripheral Demo (Making Connections)

Place the Module in Test Mode

After connecting the PICtail to your PC using the supplied USB cable, place the module in Test mode by setting SW7 in the ON position, then press SW5 (Reset) to reset the module. Also, ensure the jumpers are all set as shown:

​

Launch the UI Configuration Tool

Open the BLEDK3 UI Configuration Tool and load the default BM71 configuration file: IS1871SF_102_BLEDK3_UI v100.132(BM71) default.txt

​

Select Edit and ensure that the BLEDK radio button is checked and that BM71 is the device selected under the Main Feature window. Then press OK.

Change Device Name

In the Device Information pane, set the Name Fragment to lab2p-XXXX where XXXX is the last four digits of the BM71 MAC address. This identifier will become the GAP Service Device Name characteristic, as well as the Local Name identifier during advertising.

​

​

Disable UART_RX_IND

Scroll down to the Uart Setting pane, then select Disable from the UART RX_IND pull-down as shown.

When enabled, this feature places the module into a Lower Power Operating mode, shutting off its UART RX operation. The host MCU needs to drive this pin low for at least 3 ms before sending the next packet to the module, as shown.

Configure Manual Pattern (BLE GATT) Operation Mode

In the Operation Mode Setting pane, select Manual Pattern for Operation Pattern as shown.

Click OK on the pop-up dialog box that follows.

Click Next to proceed to the next tab.

General Purpose Input/Output (GPIO) Configuration

In the GPIO Configuration pane, ensure the GPIO pin radio button settings are left at default settings as shown below.

Click Next to proceed to the next tab.

ADV Packet Interval

In the LE Advertising Setting pane, set the ADV packet interval, referred to here as LE Fast Advertising Interval, to 100 ms by writing "0x00A0" in the field as shown below.

​

Leave the remaining parameters as-is.

ADV Packet Payload

In the Advertising Data Setting pane, ensure that Complete Device Name and Flag are checked and included in the payload. (The GAP Device Name characteristic will automatically be included in the ADV packet as the Local Name.)

​

SCAN_RSP Packet Payload

In the Scan Response Data Setting pane, ensure that Tx Power is enabled for the payload.

​

The remainder of the settings are left at their defaults.

Write Settings

Press Finish.

To program these settings into the BM71 module, click on Write, select the COM port you are using, and press Write again.

On the window that pops up, click Yes and lastly, OK as shown above.

Close the UI Configuration Tool.

Place the Module in Application Mode

Move dip-switch SW7 to the OFF position (1) and reset the module by pressing SW5 (button immediately above dip-switch).

Launch the Manual Pattern Test Tool

Open the Manual Pattern Test Tool, and connect to the COM port associated with the board.

Command and Response

Verify the connection by sending a Read Local Information packet. Select 0x01: Read Local Information for Opcode in the Common tab.

If the COM port connection was successful, you will see results similar to the following Log View and Local Information panes:

​

Analysis of the “Read Local Information” (0x01) Command Packet

Analysis of the “Read Local Information” (0x01) Event Packet

Mode of Operation

Verify the BM71 state/mode of operation by sending a Read BLEDK3 Status packet. Select 0x03: Read BLEDK3 Status for Opcode in the Common tab.

The module should be on Idle mode.

Set Advertising Data

On BM71, the ADV interval, as well as ADV_IND and SCAN_RSP payload data can be set statically (using the UI Configuration Tool) and dynamically (via command op-codes/packets).

Since we’ve set an appropriate ADV_IND Interval, as well as ADV_IND and SCAN_RSP payload data using the UI Configuration Tool (steps 7 thru 9 above), we will not need to update them dynamically via the Manual Pattern evaluation tool below.

If you need to update ADV and SCAN_RSP payload data dynamically, select the ADV / SR Data tab and set advertising and scan response data payload. Then, pressing Update will issue GAP Command Opcode 0x11 (Write_Adv_Data) to update the payload data sent during Advertising (Standby) mode:

If you need to update ADV Interval dynamically, GAP op-code 0x13 (Set_Adv_Parameter) may be used to dynamically alter the ADV interval:

​

Begin Advertising

​

In the GAP tab, select 0x1C: (Set Adv Enable) for Opcode. Select 0x01: (Enter Standby Mode) for Standby mode. Finally, press Send as shown:

You should see the following indicators of success:

BT Status will show "0x03: Standby Mode"

Blue LED (P2_0/LED) will blink once every three seconds (default setting - configurable via UI Config Tool):

You should also see the peripheral’s Local Name displayed in the Smart Discover App, along with RSSI and ADV Interval (Android):

Connect to the BM71 Peripheral Using SmartDiscover App

In the scan list, select the BM71 device you wish to connect to by tapping on it.

You will see the following indicators of success:

BT Status will show "0x0C: BLE Connected Mode" and LE Connection Information (provided by the Central) is also provided.

Blue LED (P2_0/LED) will blink twice every 1.5 seconds (default setting -configurable via UI Config Tool):

In SmartDiscover, the default services will have been enumerated, and the ADV and SCAN_RSP data displayed for the device:

Disconnect from the BM71 Peripheral Using SmartDiscover App

In the SmartDiscover app, disconnect from the device by tapping DISCONNECT.

You should see the following indicators of success:

BT Status will show "0x09 Idle Mode":

Blue LED (P2_0/LED) will stop blinking: