BlueNRG-MS development kits

UM1870
User manual
BlueNRG-MS development kits
Introduction
This document describes the BlueNRG-MS development kits and related hardware and
software components. The BlueNRG-MS is a very low power Bluetooth® low energy (BLE)
single-mode network processor, compliant with Bluetooth specifications core 4.1. The
BlueNRG-MS can support multiple roles simultaneously.
The following BlueNRG-MS kits are available:
1.
BlueNRG-MS development platform (order code: STEVAL-IDB005V1)
2.
BlueNRG-MS daughterboard (order code: STEVAL-IDB005V1D)
3.
BlueNRG-MS USB dongle (order code: STEVAL-IDB006V1)
The BlueNRG-MS software package includes a graphical user interface application to
control the BlueNRG-MS through a simple ACI protocol.
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Contents
1
2
Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1
STEVAL-IDB005V1 kit contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2
STEVAL-IDB005V1D kit contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3
STEVAL-IDB006V1 kit contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4
System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5
BlueNRG-MS development kit setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
2.2
3
2.1.1
Microcontroller and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1.2
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.3
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.4
Extension connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.5
Push-buttons and joystick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.6
JTAG connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.7
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1.8
Daughterboard interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
BlueNRG-MS daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2.1
Current measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.2
Hardware setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.3
STM32L preprogrammed application . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3
STEVAL-IDB005V1D Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.4
STEVAL-IDB006V1 USB dongle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.4.1
Microcontroller and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.4.2
SWD interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.4.3
RF connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.4.4
Push-buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.4.5
User LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.4.6
BALF-NRG-01D3 integrated balun . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.4.7
Hardware setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.4.8
STM32L preprogrammed application . . . . . . . . . . . . . . . . . . . . . . . . . . 20
GUI software description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1
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STEVAL-IDB005V1 motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
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3.2
4
5
3.2.1
GUI main window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.2
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2.3
GUI ACI utilities window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2.4
GUI Scripts window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.2.5
GUI Beacon window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.2.6
GUI RF Test window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Programming with BlueNRG-MS network processor . . . . . . . . . . . . . 43
4.1
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.2
Software directory structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
BlueNRG-MS sensor profile demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.1
Supported platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.2
BlueNRG-MS app for smartphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.3
BlueNRG-MS sensor profile demo: connection with a central device . . . 47
5.4
6
The BlueNRG-MS graphical user interface . . . . . . . . . . . . . . . . . . . . . . . 21
5.3.1
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.3.2
Add service and characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.3.3
Set security requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.3.4
Enter connectable mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5.3.5
Connection with central device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
BlueNRG-MS sensor demo: central profile role . . . . . . . . . . . . . . . . . . . . 49
5.4.1
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
5.4.2
Discovery a sensor peripheral device . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.4.3
Connect to discovered sensor peripheral device . . . . . . . . . . . . . . . . . . 50
5.4.4
Discovery sensor peripheral services and characteristics . . . . . . . . . . . 50
5.4.5
Enable sensor peripheral acceleration and free fall notifications . . . . . . 51
5.4.6
Read the sensor peripheral temperature sensor characteristic . . . . . . . 51
BlueNRG-MS chat demo application . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.1
Supported platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.2
BlueNRG-MS chat demo application: peripheral & central devices . . . . . 52
6.2.1
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.2.2
Add service and characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.2.3
Enter connectable mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.2.4
Connection with central device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
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BlueNRG-MS Beacon demonstration application . . . . . . . . . . . . . . . . 56
7.1
Supported platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.2
BLE Beacon application setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.2.1
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.2.2
Define advertising data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
7.2.3
Entering non-connectable mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
BLE remote control demo application . . . . . . . . . . . . . . . . . . . . . . . . . 58
8.1
Supported platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
8.2
BLE remote control application setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
8.2.1
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
8.2.2
Define advertising data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
8.2.3
Add service and characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
8.2.4
Connection with a BLE Central device . . . . . . . . . . . . . . . . . . . . . . . . . 60
9
List of acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
10
Available board schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
11
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
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1
Getting started
Getting started
This section describes all the software and hardware requirements for running the
BlueNRG-MS GUI utility as well as the related installation procedure.
1.1
STEVAL-IDB005V1 kit contents
This kit is composed of the following items:
•
1 development motherboard
•
1 BlueNRG-MS daughterboard
•
1 2.4 GHz Bluetooth antenna
•
1 USB cable
Figure 1. BlueNRG-MS kit motherboard with the STEVAL-IDB005V1 daughterboard
connected
1.2
STEVAL-IDB005V1D kit contents
This kit is composed of the following items:
• BlueNRG-MS daughterboard
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Figure 2. STEVAL-IDB005V1D BlueNRG-MS daughterboard
Note:
The STEVAL-IDB005V1D BlueNRG-MS daughterboard is identical to the BlueNRG-MS
daughterboard available within the STEVAL-IDB005V1 kit (refer to Section 1.1).
1.3
STEVAL-IDB006V1 kit contents
This kit is composed of the following items:
• 1 USB dongle
Figure 3. STEVAL-IDB006V1 BlueNRG-MS USB dongle
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1.4
Getting started
System requirements
The BlueNRG-MS graphical user interface utility has the following minimum requirements:
•
1.5
Note:
PC with Intel® or AMD® processor running one of the following Microsoft® operating
systems:
–
Windows XP SP3
–
Windows Vista
–
Windows 7
•
At least 128 Mb of RAM
•
2 USB ports
•
40 Mb of hard disk space available
•
Adobe Acrobat Reader 6.0 or later.
BlueNRG-MS development kit setup
•
Extract the content of the BlueNRG_DK_-x.x.x-Setup.zip file into a temporary directory.
•
Launch the BlueNRG-DK-x.x.x-Setup.exe file and follow the on-screen instructions.
EWARM Compiler 7.40.3 or later is required for building the BlueNRG_DK_x.x.x
demonstration applications.
BlueNRG DK software package supports both BlueNRG and BlueNRG-MS devices.
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Hardware description
The following sections describe the components of the kits.
2.1
STEVAL-IDB005V1 motherboard
The motherboard included in the development kit allows testing of the functionality of the
BlueNRG-MS processor. The board can be used as a simple interface between the
BlueNRG-MS and a GUI application on the PC. The STM32L microcontroller on the board
can also be programmed, so the board can be used to develop applications using the
BlueNRG-MS. A connector on the motherboard (Figure 1) allows access to the JTAG
interface for programming and debugging. The board can be powered through a mini-USB
connector that can also be used for I/O interaction with a USB Host. The board includes
sensors, and buttons and a joystick for user interaction. The RF daughterboard can be
easily connected through a dedicated interface.
This is a list of some of the features that are available on the boards:
•
STM32L151RBT6 64-pin microcontroller
•
Mini USB connector for power supply and I/O
•
JTAG connector
•
RF daughterboard interface
•
One RESET button and one USER button
•
One LIS3DH accelerometer
•
One STLM75 temperature sensor
•
One joystick
•
5 LEDs
•
One PWR LED
•
One battery holder for 2 AAA batteries
•
One row of test points on the interface to the RF daughterboard
Figure 4. Motherboard for the BlueNRG-MS development kit
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2.1.1
Hardware description
Microcontroller and connections
The board features an STM32L151RB microcontroller, which is an ultra low-power
microcontroller with 128 KB of Flash memory, 16 KB of RAM, 32-bit core ARM cortex-M3, 4
KB of data EEPROM, RTC, LCD, timers, USART, I2C, SPI, ADC, DAC and comparators.
The microcontroller is connected to various components such as buttons, LEDs and
connectors for external circuitry. The following table shows what functionality is available on
each microcontroller pin.
Table 1. MCU pin description versus board function
Board function
Pin
name
Pin
VLCD
1
PC13
2
PC14
3
3
PC15
4
5
OSC_IN
5
OSC_O
UT
6
NRST
7
PC0
8
LED1
PC1
9
LED2
PC2
10
PC3
11
VSSA
12
VDDA
13
PA0
14
11
PA1
15
13
PA2
16
15
PA3
17
17
VSS_4
18
VDD_4
19
PA4
20
SPI1_NSS
PA5
21
SPI1_SCK
PA6
22
SPI1_MISO
PA7
23
SPI1_MOSI
PC4
24
LED4
PC5
25
LED5
PB0
26
LEDs
DB connector
Buttons /
joystick
Acceler.
Temp.
sensor
USB
JTAG
Ext.
conn
DB_SDN_RST
RESET
7
DB_PIN3
9
JOY_DOWN
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Table 1. MCU pin description versus board function (continued)
Board function
Pin
name
Pin
PB1
27
PB2
28
PB10
29
INT1
PB11
30
INT2
VSS_1
31
VDD_1
32
PB12
33
DB_CSN(1)
PB13
34
DB_SCLK(1)
PB14
35
DB_SDO(1)
PB15
36
DB_SDI(1)
PC6
37
LEDs
DB connector
Buttons /
joystick
Acceler.
Temp.
sensor
USB
JTAG
Ext.
conn
JOY_RIGHT
18
PUSH_BTN
PC7
38
DB_IO0(1)
PC8
39
DB_IO1(1)
PC9
40
DB_IO2(1)
PA8
41
JOY_LEFT
PA9
42
JOY_CENTER
PA10
43
JOY_UP
PA11
44
USB_DM
PA12
45
USB_DP
PA13
46
VSS_2
47
VDD_2
48
PA14
JTMS
16
49
JTCK
14
PA15
50
JTDI
12
PC10
51
DB_IO3_IRQ(1)
PC11
52
DB_PIN1
PC12
53
DB_PIN2
PD2
54
PB3
55
JTDO
10
PB4
56
JNTRST
8
PB5
57
TSEN_INT
PB6
58
I2C1_SCL
PB7
59
I2C1_SDA
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Hardware description
Table 1. MCU pin description versus board function (continued)
Board function
Pin
name
Pin
BOOT0
60
PB8
61
4
PB9
62
6
VSS_3
63
VDD_3
64
LEDs
DB connector
Buttons /
joystick
Acceler.
Temp.
sensor
USB
JTAG
Ext.
conn
1. These lines are also available on the test point row
2.1.2
Power
The board can be powered either by the mini USB connector CN1 (A in Figure 4) or by 2
AAA batteries. To power the board through USB bus, jumper JP1 must be in position 1-2, as
in Figure 4 (B). To power the board using batteries, 2 AAA batteries must be inserted in the
battery holder at the rear of the board, and jumper JP1 set to position 2-3.
When the board is powered, the green LED DL6 is on (C).
If needed, the board can be powered by an external DC power supply. Connect the positive
output of the power supply to the central pin of JP1 (pin 2) and ground to one of the four test
point connectors on the motherboard (TP1, TP2, TP3 and TP4).
2.1.3
Sensors
Two sensors are available on the motherboard:
2.1.4
–
LIS3DH, an ultra-low power high performance three-axis linear accelerometer (D
in Figure 4). The sensor is connected to the STM32L through the SPI interface.
Two lines for interrupts are also connected.
–
STLM75, a high precision digital CMOS temperature sensor, with I²C interface (E
in Figure 4). The pin for the alarm function is connected to one of the STM32L
GPIOs.
Extension connector
There is the possibility to solder a connector on the motherboard to extend its functionality
(F in Figure 4). 16 pins of the microcontroller are connected to this expansion slot (Table 1).
2.1.5
Push-buttons and joystick
For user interaction the board has two buttons. One is to reset the microcontroller, while the
other is available to the application. There is also a digital joystick with 4 possible positions
(left, right, up, down) (G in Figure 4).
2.1.6
JTAG connector
A JTAG connector on the board (H in Figure 4) allows the programming and debugging of
the STM32L microcontroller on board(a), using an in-circuit debugger and programmer such
as the ST-LINK/V2.
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LEDs
Five LEDs are available (I in Figure 4).
2.1.8
–
DL1: green
–
DL2: orange
–
DL3: red
–
DL4: blue
–
DL5: yellow
Daughterboard interface
The main feature of the motherboard is the capability to control an external board,
connected to the J4 and J5 connectors (L in Figure 4). Table 1 shows which pins of the
microcontroller are connected to the daughterboard.
Some of the lines are connected also to a row of test points (M).
a. The STM32L is preprogrammed with a DFU firmware that allows the downloading of a firmware image without
the use of a programmer. If an user accidentally erases DFU firmware, he can reprogram it through STLink
using the hex image DFU_Bootloader.hex available on BlueNRG-MS DK SW package, firmware folder.
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2.2
Hardware description
BlueNRG-MS daughterboard
The BlueNRG-MS daughterboard (Figure 5) included in the development kit is a small
circuit board to be connected to the main board. It contains the BlueNRG-MS network
processor (in a QFN32 package), an SMA antenna connector, discrete passive components
for RF matching and balun, and small number of additional components required by the
BlueNRG-MS for proper operation (see the schematic diagram in Figure 26).
Figure 5. BlueNRG-MS daughterboard
The main features of the BlueNRG-MS daughterboard are:
–
BlueNRG-MS low power network processor for Bluetooth low energy (BLE), with
embedded host stack
–
High frequency 16 MHz crystal
–
Low frequency 32 kHz crystal for the lowest power consumption
–
Integrated balun and harmonic filter
–
SMA connector
The daughterboard is also equipped with a discrete inductor for the integrated highefficiency DC-DC converter, for best-in-class power consumption. It is still possible to
disable the DC-DC converter. In this case the following changes must be performed on the
daughterboard (see Figure 26):
–
Remove inductor from solder pads 1 and 2 of D1
–
Place a 0 ohm resistor between pads 1 and 3
–
Move resistor on R2 to R1
For proper operation, jumpers must be set as indicated in Figure 5.
The following tables show the connections between the daughterboard and the main board.
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Table 2. Connections between BlueNRG-MS board and motherboard on left connector
Pin
J4 motherboard
J3 daughterboard
1
DB_PIN1
NC
2
3V3
3V3
3
DB_PIN3
NC
4
NC
NC
5
GND
GND
6
DB_PIN2
nS
7
GND
GND
8
3V3
U2 pin 1
9
DB_SDN_RST
RST
10
3V3
U2 pin 1
Table 3. Connections between BlueNRG-MS board and motherboard on right
connector
2.2.1
Pin
J5 motherboard
J4 daughterboard
1
GND
GND
2
GND
GND
3
DB_CSN
CSN
4
DB_IO3_IRQ
IRQ
5
DB_SCLK
CLK
6
DB_IO2
NC
7
DB_SDI
MOSI
8
DB_IO1
NC
9
DB_SDO
MISO
10
DB_IO0
NC
Current measurements
To monitor power consumption of the entire BlueNRG-MS daughterboard, remove the
jumper from U2 and insert an ammeter between pins 1 and 2 of the connector. Since power
consumption of the BlueNRG-MS during most operation time is very low, an accurate
instrument in the range of few microamps may be required.
2.2.2
Hardware setup
1.
2.2.3
Plug the BlueNRG-MS daughterboard into J4 and J5 connectors as in Figure 1.
2.
Ensure the jumper configuration on the daughterboard is as in Figure 1
3.
Connect the motherboard to the PC with an USB cable (through connector CN1).
4.
Verify the PWR LED lights is on.
STM32L preprogrammed application
The STM32L on STEVAL-IDB005V1 motherboard is preprogrammed with the sensor demo
application when the kits components are assembled (refer to Section 5 for the application
description).
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2.3
Hardware description
STEVAL-IDB005V1D Kit
The STEVAL-IDB005V1D kit is a standalone RF daughterboard which features the
BlueNRG-MS device, an SMA connector for an antenna or measuring instruments and an
SPI connector for external microcontroller. It can be connected to the STM32L
motherboards available with the STEVAL-IDB002V1 and STEVAL-IDB005V1 kits.
The STEVAL-IDB005V1D BlueNRG-MS daughterboard is identical to the BlueNRG-MS
daughterboard available within the STEVAL-IDB005V1 kit (refer to Section 2.2 BlueNRGMS daughterboard).
Figure 6. STEVAL-IDB005V1D BlueNRG-MS daughterboard
2.4
STEVAL-IDB006V1 USB dongle
The BlueNRG-MS USB dongle allows users to easily add BLE functionalities to their PC by
plugging the dongle into a USB port. The USB dongle can be used as a simple interface
between the BlueNRG-MS and a GUI application on the PC. The on-board STM32L
microcontroller can also be programmed, so the board can be used to develop applications
that use the BlueNRG-MS.
The board can be powered through the USB connector, which can also be used for I/O
interaction with a USB host. The board also has two buttons and two LEDs for user
interaction.
Below is a list of some of the main features that are available on the board (see Figure 2):
• BlueNRG-MS network coprocessor
• STM32L151CBU6 48-pin microcontroller
• USB connector for power supply and I/O
• One row of pins with SWD interface
• Chip antenna
• Two user buttons (SW1, SW2)
• Two LEDs (D2, D3)
• BALF-NRG-01D3 integrated balun
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Microcontroller and connections
The board utilizes an STM32L151CBU6, which is an ultra low-power microcontroller with
128 KB of Flash memory, 16 KB of RAM, 32-bit core ARM cortex-M3, 4 KB of data
EEPROM, RTC, timers, USART, I2C, SPI, ADC, DAC and comparators.
The microcontroller is connected to various components such as buttons, LEDs and
connectors for external circuitry. The following table shows which functionality is available
on each microcontroller pin.
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Table 4. MCU pin description versus board function
Board function
Pin name
Pin
num.
LEDs
BlueNRG
Buttons
USB
VLCD
1
PC13
2
PC14
3
PC15
4
OSC_IN
5
OSC_OUT
6
NRST
7
VSS_A
8
VDD_A
9
PA0
10
PA1
11
PA2
12
PA3
13
PA4
14
PA5
15
PA6
16
PA7
17
PB0
18
Led D2
PB1
19
Led D3
PB2
20
PB10
21
PB11
22
VSS1
23
VDD1
24
PB12
25
SPI2_CS
PB13
26
SPI2_CLK
PB14
27
SPI2_MISO
PB15
28
SPI2_MOSI
PA8
29
PA9
30
PA10
31
PA11
32
USB_DM
PA12
33
USB_DP
SWD
VBAT
Button SW2
Button SW1
BlueNRG_IRQ
EEPROM_CS
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Table 4. MCU pin description versus board function (continued)
Board function
Pin name
Pin
num.
LEDs
2.4.2
PA13
34
VSS2
35
VDD2
36
PA14
37
PA15
38
PB3
39
PB4
40
PB5
41
PB6
42
PB7
43
BOOT0
44
PB8
45
PB9
46
VSS_3
47
VDD_4
48
BlueNRG
Buttons
USB
SWD
SWDIO
SWCLK
SWO
SWD interface
The SWD interface is available through the J2 pins. The SWD interface allows programming
and debugging of the STM32L microcontroller on the board, using an in-circuit debugger
and programmer like the ST-LINK/V2. In Figure 7 the connection scheme illustrating how to
connect the ST-LINK/V2 with the board pins is shown.
Figure 7. SWD connection scheme with ST-LINK/V2
The signals available on the STEVAL-IDB006V1 are:
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1.
GND
2.
VDD
3.
nRESET
4.
SWDIO
5.
SWO/TRACE
6.
SWCLK
The connection to the ST-LINK/V2 interface is given in the table below, as shown in
Figure 7:
Table 5. SWD connection
STEVAL-IDB006V1
ST-LINK/V2
pin number
pin number
GND
1
14 /6
VDD
2
2/1
nRESET
3
15
SWDIO
4
7
SWO/TRACE
5
13
SWCLK
6
9
Signal name
2.4.3
RF connector
The STEVAL-IDB006V1 provides two different RF connections: antenna (chip antenna,
default configuration) and UFL connector. Although the default configuration allows
communication on air, it can be useful to switch to the UFL connector in order to connect the
STEVAL-IDB006V1 to RF equipment such as a spectrum analyzer or RF signal generator.
To switch from antenna to UFL connector, capacitor C10 must be removed and capacitor
C42 must be soldered. To restore the default configuration and use the antenna, capacitor
C42 must be removed and capacitor C10 must be soldered. Both capacitors C10 and C42
have the same value: 56 pF. In Figure 8, the two pads for C10 and C42 are shown together
with the chip antenna and UFL connector.
Figure 8. RF connector scheme
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Push-buttons
For user interaction the board has two buttons, both available to the application
–
SW1
–
SW2
Note:
SW1 is the DFU button. The BlueNRG-MS USB dongle is preprogrammed with a DFU
application allowing upgrades to the STM32L firmware image through USB and using the
BlueNRG GUI. To activate the DFU, press button SW1 and plug the BlueNRG-MS USB
dongle into a PC USB port.
2.4.5
User LEDs
Two LEDs are available:
–
D2: red
–
D3: orange
Note:
When DFU is activated, LED D3 is blinking
2.4.6
BALF-NRG-01D3 integrated balun
BALF-NRG-01D3 integrated balun is an ultra miniature balun which integrates a matching
network and harmonics filter.
2.4.7
Hardware setup
Plug the BlueNRG USB dongle into a PC USB port.
2.4.8
STM32L preprogrammed application
The STM32L on the STEVAL-IDB006V1 motherboard is preprogrammed with the
BlueNRG_VCOM_x_x.hex application when the kit components are assembled (refer to
Section 3.1 for the application description).
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GUI software description
GUI software description
The BlueNRG-MS GUI included in the software package is a graphical user interface that
can be used to interact and evaluate the capabilities of the BlueNRG-MS network
processor.
This utility can send standard and vendor-specific HCI commands to the controller and
receive events from it. It lets the user configure each field of the HCI command packets to
be sent and analyzes all received packets. In this way BlueNRG-MS can be easily managed
at low level.
3.1
Requirements
In order to use the BlueNRG-MS GUI, make sure you have correctly set up your hardware
and software (BlueNRG-MS GUI installed). The STM32L in the STEVAL-IDB005V1 kit has
been preprogrammed with a demo application (see Section 5). Hence, new firmware must
be loaded into the STM32L. Firmware images can be found within the firmware folder. The
firmware image that must be programmed is latest BlueNRG_VCOM_x_x.hex available
within the BlueNRG DK SW package. The GUI has the ability to Flash new firmware.
In order to download binary images into the internal Flash of the STM32L, the
microcontroller must be put into a special DFU (device firmware upgrade) mode. To enter
DFU mode:
1.
2.
3.2
BlueNRG-MS development platform (STEVAL-IDB005V1)
–
Power up the board
–
Press and hold USER button
–
Reset the board using RESET button (keep USER button pressed while resetting)
The orange LED DL2 will start to blink
–
Release USER button
–
Use BlueNRG-MS GUI to Flash the device with new firmware (Tools -> Flash
motherboard FW).
BlueNRG-MS USB Dongle (order code: STEVAL-IDB006V1)
–
Press and hold SW1 button
–
Plug the USB dongle on a PC USB port. The orange LED D3 will start to blink.
–
Use BlueNRG GUI to Flash the device with a new firmware (Tools -> Flash
Motherboard FW).
The BlueNRG-MS graphical user interface
This section describes the main functions of BlueNRG-MS GUI application.
You can run this utility by clicking on the BlueNRG-MS GUI icon on the Desktop or under:
Start → STMicroelectronics → BlueNRG DK X.X.X → BlueNRG-MS GUI
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GUI main window
Figure 9. BlueNRG-MS GUI main window
The BlueNRG-MS GUI main window is characterized by different zones. Some of these
zones can be resized.
Port and interface selection
The uppermost zone allows the user to open the COM port associated to the BLE controller.
When a COM port is opened the following information are displayed:
– BlueNRG-MS HW version
– BlueNRG-MS FW version
– STM32L motherboard GUI firmware (VCOM) version
HCI commands
The HCI Commands tab contains a list of all the available HCI commands. Commands can
be filtered by checking/unchecking boxes under the filter section. After clicking on one of the
commands, all the packet fields will be displayed on the command packet table in the upperright section of the tab (see Figure 10).
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Figure 10. Command packet table
The command packet table contains four columns:
•
Parameter: name of the packet field as they are named in volume 2, part E of
Bluetooth specification.
•
Value: field value represented in hexadecimal format (right-click on a cell to change its
representation format).
•
Literal: meaning of the current field value.
•
Info: description of the corresponding field.
Only the yellow cells of this table can be modified by the user. The Parameter Total Length is
fixed or automatically calculated after modifying cell content.
After the fields have been modified (if required) the command can be sent using the Send
button.
HCI Packet history and details
At the bottom of the main window, two tables show packets sent to and received from the
BLE controller, as well as other events. The left table (sent/received packets) holds a history
of all packets (see Figure 11). The right one (packet details) shows all the details of the
selected packet as is done in the command packet table (Figure 11).
Figure 11. Packet history and details
Double-clicking on a row of the sent/received packets table shows the raw packet.
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Figure 12. Raw packet dump
Some events (displayed in yellow cells) can provide other information. HCI packets sent
towards the BLE controller are displayed in gray cells while received packets are shown
inside white cells.
The Sent/received packets table can be cleared by clicking on clear list button. Update and
auto-scrolling check boxes enable or disable updating and auto-scrolling of the
Sent/received packets table while new packets are sent or received (however, information
will still be printed).
The sent/received packets can be stored and later reloaded on the GUI, by using the utilities
provided on File menu:
3.2.2
1.
Save History: it saves the current list of sent commands and received events on a CSV
file
2.
Load History: it loads a list of sent commands and received events, previously stored
on a CSV file.
3.
Save as Python Script: it allows to store the current list of sent commands and received
events as a script file (python format). This script file can be used on GUI Script
window, after proper customization (by adding specific code for handling events,
parameters), in order to address an user application scenario (refer to Section 3.2.5).
Tools
The BlueNRG-MS GUI has some functions that can be accessed through the tools menu.
These tools are described in this section.
BlueNRG-MS updater
This tool can be used to update the firmware inside the BlueNRG-MS by using its internal
bootloader. VCOM firmware must be present on the STM32L and COM port must be open,
in order to use this function.
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1.
Go to Tools -> BlueNGR updater
2.
Select the correct stack firmware (.img)
3.
Press update to start the update procedure. If the procedure completes with no errors,
the new firmware has been loaded into the BlueNRG-MS internal Flash.
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BlueNRG-MS IFR
To preserve BlueNRG-MS's flexibility, its firmware uses a table of configurable parameters.
This table resides in a sector of the Flash called Information Register (IFR). The BlueNRGMS IFR tool can read and modify this portion of BlueNRG-MS's Flash. This tool is available
in BlueNRG-MS GUI, Tools, BlueNRG IFR... item.
The BlueNRG-MS GUI IFR utility is a tool that allow the customer to define the IFR data in a
controller way. Using this utility is the only supported mode to define IFR data based on
customer needs. The utility provides the following windows:
• View/Edit view: displays the IFR regions with related fields and description. The user can
modify some of these fields according to his needs.
• Memory view: displays the IFR field memory addresses and related values that are
generated by BlueNRG-MS GUI according to the specified values.
• C view: displays the C language structure related to the IFR configuration data region
matching the View/Edit and Memory view.
Figure 13. BlueNRG GUI IFR tool: View/Edit view
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In the View/Edit view, the following operations are available:
• Select the high speed (HS) crystal (16 or 32 MHz) and the low speed oscillator source (32
kHz or the internal ring oscillator)
• Set the Power Management options (SMPS inductor or SMPS off configuration)
• Change stack mode. Each mode has a different functionality:
– Mode 1: slave/master, 1 connection only, small GATT database (RAM2 off during
sleep)
– Mode 2: slave/master, 1 connection only, large GATT database (RAM2 on during
sleep)
– Mode 3: slave/master, 8 connections, small GATT database (RAM2 on during sleep)
– Mode 4: only on BlueNRG-MS FW stack version > 7.1a, slave/master, simultaneous
advertising and scanning, up to 4 connections, small GATT database (RAM2 on
during sleep)
• Change HS startup time parameter. This parameter control the time offset between the
wakeup of the device and the start of RX/TX phase. It must be big enough to allow the
device to be ready to transmit or receive after wakeup from sleep. This time depends on
the startup time of the high speed crystal.
• Change sleep clock accuracy. This must reflect the actual clock accuracy, depending on
the low speed oscillator or crystal in use.
• Set low speed (LS) crystal period and frequency
• View/change date to distinguish between different versions of configurations.
• View registers that are written into the radio (hot and cold table)
• Set some test modes for specific tests
• Read IFR content from BlueNRG-MS.
• Write IFR configuration to BlueNRG-MS IFR.
The following general utilities are also available:
• Load button: allows to load a configuration file.
• Save button: allows to save the current parameters into a configuration file.
Flash motherboard firmware
The BlueNRG-MS GUI embeds a utility that allows to Flash firmware to the STM32L
microcontroller on the motherboard without a JTAG/SWD programmer. This utility uses a
bootloader that has been programmed in the first 12 KB of the Flash. Any application to be
programmed to the STM32L by this tool must first consider that the lower area of the Flash
is used by the bootloader(b).
OTA bootloader
OTA bootloader is a tool that allows to Flash new firmware to the STM32L of a remote
device via Bluetooth low energy technology. Refer to the dedicated application note for
more information.
b. Two precautions must be taken for any firmware: 1) change memory regions in linker script (vector table and
Flash must start at 0x08003000); 2) Change the vector table offset (NVIC_SetVectorTable())
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Get production data
From the tools menu it is possible to retrieve production information from the BlueNRG-MS
daughterboard. This data is stored in the EEPROM on the daughterboard.
Get version
The Get version tool is used to retrieve the version of the BlueNRG-MS GUI firmware
(VCOM) on the STM23L, and hardware and firmware version from the BlueNRG-MS.
Settings
This tool allows to configure the firmware stack version to be used from the GUI (when no
device is actually connected to a PC USB port). Further, it allows to configure the GUI serial
baud rate (valid only for communication over serial UART and not through USB Virtual
COM).
In order to use this function.
3.2.3
1.
Go to Settings --> select FW 7.1 for BlueNRG-MS device
2.
Go to Settings --> select Set Baud Rate… and choose the value (default is 115200)
GUI ACI utilities window
The BlueNRG-MS GUI ACI utilities window provides several tabs to allow testing of some
BlueNRG-MS application scenarios.
Figure 14. BlueNRG-MS GUI ACI utilities window
Central and Peripheral roles are supported with the BLE operations described in Table 6,
Table 7 and Table 8.
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Table 6. GUI ACI utilities window: available general operations
Operation
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Associated actions
Notes
Init Device…
Allows to initialize a device by selecting:
- Role
- Stack Mode (1,2,3,4);
- Address type (Public, Random) and value
- Tx power level
- Power mode
- Device Name
Service
Management…
Allows to add a service by selecting:
- UUID type (16 or 128 bits)
- Service Type (Primary or Secondary)
- Set max number of records
For each service, it allows to add a characteristic
and related descriptors by selecting:
- UUID type (16 or 128 bits)
- Properties
- Security permissions
- Variable length or not
- Length
- GATT Event mask
- Encryption key size
After a characteristic is
defined, the user can
edit its parameters
and/or delete it.
Once a service and its
characteristics,
descriptors have been
defined, click OK to add
them to the GATT
database. The defined
GATT database is
showed on a specific
view.
Service Discovery ..
Allows to discover all services and related
characteristics of available connections.
Service start handle,
end handle and UUID
are showed.
For each selected
Service the related
Characteristics
information are showed
(attribute handle,
property, value handle
and UUID).
For the available
characteristic with Notify
or Indication Property
it’s possible to enable
the
Notification/Indication.
Terminate
Connection...
Allows to terminate the available connections
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Table 7. GUI ACI utilities window: available central operations
Operation
Scanning
Connection
Associated actions
Notes
Allows to put device in scanning mode by selecting:
- GAP Procedure (Limited, general, general-connection
establishment and terminate general-connection
establishment procedures)
- Enable or Disable filters
- Set own address type
- Set passive or active scan
- Set Scanning interval and Window
Allows to connect to a peer device by:
- Searching for devices in Advertising
- Select the device to which to connect
- Select the connection parameters
- Peer address and type
- Scan Interval and Window
- Connection Interval (min & max)
- Latency
- Supervision timeout
- Connection event length (min & max)
The addresses of the
detected advertising
devices are displayed
Allows to update the connection parameters of available
connections by:
- Selecting the specific connection to be updated
- Set the new connection parameters
Update
Connections
- Connection interval (min & max)
- Latency
- Supervision timeout
- Connection event length (min & max)
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Table 8. GUI ACI utilities window: available peripheral operations
Operation
3.2.4
Associated actions
Advertising
Allows to put a Peripheral device in Advertising mode by
selecting:
- Discoverable mode (limited, non discoverable and
general discoverable)
- Type (ADV_IND, ADV_SCAN_IND,
ADV_NONCONN_IND)
- Set Local name and type (complete or short)
- Advertising intervals (min & max)
- Policy:
- Allow scan request from any, allow connect request
from any
- Allow scan request from white list only, allow connect request from any
- Allow scan request from any, allow connect request
from white list only
Update
Advertising
Data
It allows to update the advertising data;
It allows to set the scan response data;
It allows to update the location UUID, major and minor
number defined on the Beacon window
Notes
GUI Scripts window
The GUI Scripts window allows the user to load and run a python script built using the
available set of BlueNRG-MS ACI commands and the related events. For a list of supported
HCI and ACI script commands and related parameters, refer to the commands available in
the BlueNRG-MS GUI ACI Commands window.
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Figure 15. BlueNRG-MS GUI Scripts window section
Moreover, the script engine supports other utility commands:
Table 9. GUI Scripts window: utility commands
Command name
Parameters
Description
HW_BOOTLOADER
None
Hardware bootloader activation
HW_RESET
None
HW reset
INFO
String to be
displayed
Open a message window and show the input
parameter. Script is blocked until user presses
OK button
ERROR
User message
Raises an exception with a user-defined debug
message
GET_CHAR
None
It allows to enter a specific char as input (as the
C get_char() API)
GET_FILE
None
It allows to select a specific file as input
GET_NAME
None
Returns the device name within an advertising
packet
Convert the array of bytes to an integer value.
Example:
GET_VALUE
Array of bytes
X = [0x33,0x22]
GET_VALUE(X) = 0x2233
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Table 9. GUI Scripts window: utility commands (continued)
Command name
Parameters
Description
Convert the integer value to an array of Number
of bytes.
Example:
GET_LIST
Integer, Number of
bytes
X = 0x2233
GET_LIST(X, 2) = [0x33,0x22]
GET_STACK_VERSION
None
Return the device information (HW version &
FW version) as (hw, fw)
GET_RAND_KEY
None
Returns a random number between 0 and
999999
INSERT_PASS_KEY
None
Allows to enter a pass key value used for the
security pass key method
PRINT
string
Print utility: it displays information on GUI
Sent/Received Packets
RESET
None
SW reset
SLEEP
time
It sleeps for “time” milliseconds
SET_MODE
Mode
Set stack mode (1,2,3,4). Mode 4 is supported
from BlueNRG-MS FW stack version 7.1.b
SET_PUBLIC_ADDRESS
Public address
Set public address (optional)
SENSORDEMO_GET_TE
MPERATURE
None
It allows to get the temperature value from the
ACI_ATT_READ_RESP_EVENT (only for the
SensorDemo_Central script)
SENSORDEMO_GET_AC
CELERATION
None
it allows to get the acceleration values (x,y,z)
from the ACI_GATT_NOTIFICATION_EVENT
(only for the SensorDemo_Central script)
TIME
None
It returns the time as a floating point number
expressed in seconds since the epoch, in UTC
The following pseudo code describes how to initialize a BlueNRG-MS device as a peripheral
using a simple python script:
# Reset BlueNRG-MS
HW_RESET()
# Init GATT
ACI_GATT_INIT()
# Init GAP as central device
ACI_GAP_INIT(Role=CENTRAL)
When a script is calling a command which generates specific events, the script can detect
them by using the WAIT_EVENT (event_code=None, timeout=None,
continueOnEvtMiss=False, **param_checks) command.
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Table 10. WAIT_EVENT macro-command
Command
name
Description
It waits an event
with ‘Event Code’
parameter equal
to event_code. If
no event_code is
indicated, the
WAIT_EVENT macro-command
waits any event.
Optional filtering
parameters allow
to define
additional filters
on event fields
Parameters
Return
- event_code = None
(default)
- timeout = None
(default)
- continueOnEvtMiss =
False (default)
- param_checks =
optional
filtering parameters
- An event with its parameters
- None, if a timeout occurs and the input
parameter “continueOnEvtMiss” is set to
True
- An HCITimeoutError error exception is
raised when a timeout occurs
- evt.get_param(“parameter_name”).val
is used for getting the specific event
The WAIT_EVENT macro-command waits for an event with 'Event Code' parameter equal
to event_code. If no event_code is indicated, the macro-command waits for any event.
The timeout parameter allows to set the event timeout. If no timeout is set, the macrocommand waits until an event occurs. If a timeout (greater than zero) is set and
continueOnEvtMiss is False and no event occurs before the timeout, an HCITimeoutError
error happens. Otherwise, if the input parameter continueOnEvtMiss is True and a timeout
(greater than zero) is set, the macro-command returns the value None even when no event
occurs before the timeout.
If one or more optional filtering parameters are specified, the macro-command performs a
check on them and it returns only the first detected event that satisfies these parameters.
The events received before the one returned are discarded.
The WAIT_EVENT() command return value can be:
• an event
• None, if a timeout occurs and the input parameter “continueOnEvtMiss” is set to True.
An HCITimeoutError error exception is raised when a timeout occurs.
The event_code parameter can be one of the following values:
Table 11. Event codes with related event parameter types
event_code
event par. type
event parameter type value
HCI_LE_CONNECTION_COMPLETE_EVENT
HCI_LE_ADVERTISING_REPORT_EVENT
HCI_LE_META_EVENT
Subevent_Code
HCI_LE_CONNECTION_UPDATE_COMPLETE_EVENT
HCI_LE_READ_REMOTE_USED_FEATURES_COMPLETE_
EVENT
HCI_LE_LONG_TERM_KEY_REQUEST_EVENT
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Table 11. Event codes with related event parameter types (continued)
event_code
event par. type
event parameter type value
ACI_BLUE_INITIALIZED_EVENT
ACI_GAP_LIMITED_DISCOVERABLE_EVENT
ACI_GAP_PAIRING_COMPLETE_EVENT
ACI_GAP_PASS_KEY_REQ_EVENT
ACI_GAP_AUTHORIZATION_REQ_EVENT
ACI_GAP_SLAVE_SECURITY_INITIATED_EVENT
ACI_GAP_BOND_LOST_EVENT
ACI_GAP_DEVICE_FOUND_EVENT
ACI_GAP_PROC_COMPLETE_EVENT
ACI_GAP_RECONNECTION_ADDRESS_EVENT
ACI_GAP_ADDR_NOT_RESOLVED_EVENT
ACI_L2CAP_CONNECTION_UPDATE_RESP_EVENT
ACI_L2CAP_PROC_TIMEOUT_EVENT
ACI_L2CAP_CONNECTION_UPDATE_REQ_EVENT
ACI_GATT_ATTRIBUTE_MODIFIED_EVENT
ACI_GATT_PROC_TIMEOUT_EVENT
ACI_ATT_EXCHANGE_MTU_RESP_EVENT
ACI_ATT_FIND_INFO_RESP_EVENT
HCI_VENDOR_EVENT
Ecode
ACI_ATT_FIND_BY_TYPE_VALUE_RESP_EVENT
ACI_ATT_READ_BY_TYPE_RESP_EVENT
ACI_ATT_READ_RESP_EVENT
ACI_ATT_READ_BLOB_RESP_EVENT
ACI_ATT_READ_MULTIPLE_RESP_EVENT
ACI_ATT_READ_BY_GROUP_TYPE_RESP_EVENT
ACI_ATT_WRITE_RESP_EVENT
ACI_ATT_PREPARE_WRITE_RESP_EVENT
ACI_ATT_EXEC_WRITE_RESP_EVENT
ACI_GATT_INDICATION_EVENT
ACI_GATT_NOTIFICATION_EVENT
ACI_GATT_PROC_COMPLETE_EVENT
ACI_GATT_ERROR_RESP_EVENT
ACI_GATT_DISC_READ_CHAR_BY_UUID_RESP_EVENT
ACI_GATT_WRITE_PERMIT_REQ_EVENT
ACI_GATT_READ_PERMIT_REQ_EVENT
ACI_GATT_READ_MULTI_PERMIT_REQ_EVENT
ACI_GATT_TX_POOL_AVAILABLE_EVENT
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Table 11. Event codes with related event parameter types (continued)
event_code
event par. type
event parameter type value
HCI_DISCONNECTION_COMP
LETE_EVENT
HCI_ENCRYPTION_CHANGE_
EVENT
HCI_READ_REMOTE_VERSIO
N_INFORMATION_COMPLETE
_EVENT
HCI_COMMAND_COMPLETE_
EVENT
HCI_COMMAND_STATUS_EV
ENT
HCI_HARDWARE_ERROR_EV
ENT
HCI_NUMBER_OF_COMPLET
ED_PACKETS_EVENT
HCI_DATA_BUFFER_OVERFL
OW_EVENT
HCI_ENCRYPTION_KEY_REF
RESH_COMPLETE_EVENT
Below are some code examples using the WAIT_EVENT() macro-command:
Example 1
# Wait any events
evt = WAIT_EVENT()
if evt.event_code == HCI_LE_META_EVENT
# User specific code ……
elif evt.event_code==HCI_VENDOR_EVENT
# User specific code ……
Example 2
# Wait an HCI_LE_META_EVENT
evt = WAIT_EVENT(HCI_LE_META_EVENT)
# Using evt.get_param('Subevent_Code').val it's possible to identify the specific
HCI_LE_META_EVENT
# parameter type value
evtCode = evt.get_param('Subevent_Code').val
# Check if received event is HCI_LE_CONNECTION_COMPLETE_EVENT
if (evtCode == HCI_LE_CONNECTION_COMPLETE_EVENT):
# If Connection Complete Status is success, get connection handle
if evt.get_param('Status').val==0x00:
conn_handle= evt.get_param('Connection_Handle').val
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Example 3
# Wait HCI_VENDOR_EVENT event_code
evt = WAIT_EVENT(HCI_VENDOR_EVENT)
#Using evt.get_param('Ecode').val it's possible to identify the specific
HCI_VENDOR_EVENT parameter type value
evtCode = evt.get_param('Ecode').val
if (evtCode == ACI_GATT_NOTIFICATION_EVENT):
conn_handle=evt.get_param('Connection_Handle').val
Example 4
# Wait the Ecode ACI_GATT_PROC_COMPLETE_EVENT (HCI_VENDOR_EVENT
#event_code).
# if no event occurs within the selected timeout, an exception is raised
WAIT_EVENT(HCI_VENDOR_EVENT, timeout=30,
Ecode=ACI_GATT_PROC_COMPLETE_EVENT)
Note:
If no timeout parameter is specified, it waits until the
ACI_GATT_PROC_COMPLETE_EVENT.
Example 5
# Wait an event for 10 seconds with continueOnEvtMiss set to True
# If no event occurs, the script continues (no exception is raised).
WAIT_EVENT(timeout=10, continueOnEvtMiss =True)
Note:
If continueOnEvtMiss parameter is set to False and if no event within the selected timeout
occurs, an exception is raised.
Example 6
# Wait the HCI_DISCONNECTION_COMPLETE_EVENT event_code
WAIT_EVENT(HCI_DISCONNECTION_COMPLETE _EVENT)
Example 7
# Create a Connection and wait for the HCI_LE_CONNECTION_COMPLETE_EVENT
ACI_GAP_CREATE_CONNECTION(Peer_Address=[0x12, 0x34, 0x00, 0xE1, 0x80,
0x02])
event = WAIT_EVENT(HCI_LE_META_EVENT,
timeout=30,Subevent_Code=HCI_LE_CONNECTION_COMPLETE_EVENT)
if event.get_param('Status').val==0x00:
# Store the connection handle
conn_handle= event.get_param('Connection_Handle').val
# User defined code …
GUI script engine loading and running steps
To load and run a python script using the BlueNRG-MS GUI script engine, the following
steps must be observed:
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1.
In the BlueNRG-MS GUI, Scripts window, Script Engine section, click on tab “…”,
browse to the script location and select the script
2.
Click on the “Run Script” tab to run the script. The execution flow (commands and
events) will be displayed in the BlueNRG-MS GUI “Sent/Received Packets” section
In the BlueNRG-MS DK 1.7.0 and future versions, some reference BlueNRG-MS scripts are
available in the GUI/scripts folder.
Note:
It is worthy of note that in order to write and use the BlueNRG-MS scripts, the user is
required to have some knowledge of the Python language (Python 2.7.6), and a good
understanding of the BlueNRG-MS ACI commands and related events.
3.2.5
GUI Beacon window
The BlueNRG-MS GUI Beacon window provides some tabs allowing configuration of a
BlueNRG-MS device as a BLE Beacon device which transmits advertising packets with
specific manufacturer data.
Figure 16. BlueNRG-MS GUI Beacon window
The user can configure the following advertising data fields for the BLE Beacon device,
through the BlueNRG-MS GUI Beacon window configuration parameters.
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Table 12. BlueNRG-MS GUI beacon window configuration parameters
Data field
Description
Address
Device address
Public or Random
Device address type
Company Identifier Code
SIG company identifier
Default is 0x0030 (STMicroelectronics)
ID
Beacon ID
Fixed value
Location UUID
Beacons UUID
Used to distinguish specific beacons
from others
Major number
Notes
Identifier for a group of beacons Used to group a related set of beacons
Minor number
Identifier for a single beacon
Used to identify a single beacon
Tx Power Level
2's complement of the Tx power
Used to establish how far you are from
device
To configure a BlueNRG-MS platform as a BLE beacon device, click on “Set Beacon” tab.
3.2.6
GUI RF Test window
The BlueNRG-MS GUI provides the RF Test window that permits to perform the following
tests:
1.
Start/Stop a tone on a specific BLE RF channel
2.
Perform a BLE Packer Error Rate (PER) tests using BLE Direct Test Mode (DTM)
commands
Start/Stop a Tone
For starting a tone on a specific RF BLE Channel performs these steps:
1.
Connect a BlueNRG-MS platform to PC USB port
2.
Launch an instance of BlueNRG-MS GUI
3.
Open related COM port
4.
Go to RF Test window and in the TRANSMITTER section:
– Set BLE channel by TX Frequency combo box
– Set TX power in the related combo box
– Click on "Start Tone" button
For stopping a tone on a specific RF BLE Channel performs these steps:
1.
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Go to RF Test window and in the TRANSMITTER section:
– Click on Stop Tone button (Stop button is available only when a tone is started)
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Figure 17. GUI RF Test: Start a tone
Direct Test Mode (DTM) tests
The BlueNRG-MS GUI provides RF Test that allows, using the BLE Direct Test Modes
commands, to target a packet error rate test scenario.
Two sections are available:
1.
TRANSMITTER section for transmitting reference packets at a fixed interval
2.
RECEIVER section for receiving reference packets at a fixed interval
TRANSMITTER section
This section permits to set the following items:
• The power level of Transmitter
• The Frequency of transmitter
• Length of Data to transmit in each packet
• Packet Payload format as defined on Bluetooth Low Energy specification, Direct Test
Mode section
Clicking on "Start Transmitter" button, test reference packets will be sent at a fixed interval.
RECEIVER section
This section permits to set the following items:
• The Frequency of Receiver
Clicking on "Receiver Test" button, test reference packets will be received at a fixed interval.
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Figure 18. GUI RF Test: TRANSMITTER & RECEIVER sections
Packet Error Rate (PER) test procedure
To perform a Packet Error Rate Test using standard BLE Direct Test Mode commands
(HCI_LE_Transmitter_Test, HCI_LE_Receiver_Test and HCI_LE_Test_End), the following
steps are needed:
Start PER test
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1.
Connect two BlueNRG-MS platforms (TX and RX) to PC USB ports
2.
Open two instances of BlueNRG-MS GUI (one for TX and RX BlueNRG-MS devices)
3.
In each instance of BlueNRG-MS GUI, Open COM Port related to TX/RX BlueNRG-MS
device
4.
Ensure that antennas are plugged into the BlueNRG-MS devices, where applicable.
5.
In the GUI related to RX BlueNRG-MS device,
– Go to RF Test window, RECEIVER section
– Set RX frequency
– Click on "Start Receiver" Button, to start Receiver Test
6.
In the GUI related to TX BlueNRG-MS device,
– Go to RF Test window, TRANSMITTER section
– Set TX power
– Set TX Frequency
– Set Length of Data
– Set Packet Payload format
– Click on "Start Transmitter" Button, to start Transmitter Test
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Stop PER test
1.
In the GUI related to TX BlueNRG-MS device:
– Go to RF Test window, TRANSMITTER section
– Click on "Stop Transmitter" button. The number of transmitted packets are displayed
on #Packet Transmitted field.
2.
In the GUI related to Rx BlueNRG-MS device
– Go to RF Test window, RECEIVER section
– Click on "Stop Receiver" button. The number of received packets are displayed on
#Packet Received field.
Get PER (Packet Error Rate) value
1.
In the GUI related to RX BlueNRG-MS device:
– Go to RF Test window, RECEIVER section
– In the PER section, insert the number of transmitted packet from TX device in the
Packet Transmitted field (read this value from TRANSMITTER section in the GUI
related to TX device)
– The PER (Packet Error Rate) value is showed in the Packet Error Rate field
Figure 19. GUI RF Test, PER test: TX device
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Figure 20. GUI RF Test, PER test: RX device
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4
Programming with BlueNRG-MS network processor
Programming with BlueNRG-MS network processor
The BlueNRG-MS provides a high level interface to control its operation. This interface is
called ACI (application-controller interface). The ACI is implemented as an extension to the
standard Bluetooth HCI interface. Since BlueNRG-MS is a network processor, the stack
runs inside the device itself. Hence, no library is required on the external microcontroller,
except for profiles and all the functions needed to communicate with the BlueNRG-MS SPI
interface.
The development kit software includes sample code that shows how to configure BlueNRGMS and send commands or parsing events. The source library is called simple BlueNRGMS HCI to distinguish it from the library for the complete profile framework (not present in
the software development kit). This library is able to handle multiple profiles at the same
time and supports several Bluetooth GATT-based profiles for BlueNRG-MS. Documentation
on the ACI is provided in a separate document.
Figure 21. Profile framework structure
Proximity
FindMe
HOGP
...
...
...
Basic profile framework
4.1
Requirements
In order to communicate with BlueNRG-MS network processor very few resources are
needed by the main processor. These are listed below:
–
SPI interface
–
Platform-dependent code to write/read to/from SPI
–
A timer to handle SPI timeouts or to run Bluetooth LE Profiles
Minimum requirements in terms of Flash and RAM space largely depend on the functionality
needed by the application, on the microprocessor that will run the code and on the compiler
toolchain used to build the firmware.
4.2
Software directory structure
The Projects folder contains some sample code that can be used on the application
processor to control the BlueNRG-MS. Platform-dependent code is also provided for
STM32L1 platforms. The example project provided in the package will run “as is” on the
development kit.
The files are organized using the following folder structure:
–
Drivers. It contains all the STM32L1xx Cube library framework files.
–
Middlewares\ST\STM32_BlueNRG\SimpleBlueNRG_HCI. Contains the code
that is used to send ACI commands to the BlueNRG-MS network processor. It
contains also definitions of BlueNRG-MS events.
–
platform. Contains all the platform-dependent files (only on STM32L1xx standard
library framework). These can be taken as an example to build applications that
can be run on other platforms.
–
Project_Cube, Projects_STD_Library. Contains source based, respectively, on
STM32L1xx Cube library and on STM32L1xx standard library frameworks, that
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can be used as an example to build other applications that will use the Bluetooth
technology with the BlueNRG-MS. Project files for IAR embedded workbench are
also available.
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5
BlueNRG-MS sensor profile demo
BlueNRG-MS sensor profile demo
The software development kit contains an example, which implements a proprietary
Bluetooth profile: the sensor profile. This example is useful for building new profiles and
applications that use the BlueNRG-MS network processor. This GATT profile is not
compliant to any existing specification. The purpose of this project is simply to show how to
implement a given profile.
This profile exposes two services: acceleration service and environmental service.
Figure 22 shows the whole GATT database, including the GATT and GAP services that are
automatically added by the stack.
One of the acceleration service’s characteristics has been called free-fall characteristic. This
characteristic cannot be read or written but can be notified. The application will send a
notification on this characteristic (with value equal to 0x01) if a free-fall condition has been
detected by the LIS3DH MEMS sensor (the condition is detected if the acceleration on the 3
axes is near zero for a certain amount of time). Notifications can be enabled or disabled by
writing on the related client characteristic configuration descriptor.
The other characteristic exposed by the service gives the current value of the acceleration
that is measured by the accelerometer. The value is made up of six bytes. Each couple of
bytes contains the acceleration on one of the 3 axes. The values are given in mg. This
characteristic is readable and can be notified if notifications are enabled.
Another service is also defined. This service contains characteristics that expose data from
some environmental sensors: temperature, pressure and humidity(c). For each
characteristic, a characteristic format descriptor is present to describe the type of data
contained inside the characteristic. All of the characteristics have read-only properties
c. An expansion board with LPS25H pressure sensor and HTS221 humidity sensor can be connected to the
motherboard through the expansion connector (F in Figure 4). If the expansion board is not detected, only
temperature from STLM75 will be used.
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Figure 22. BlueNRG-MS sensor demo GATT database
5.1
Supported platforms
The BlueNRG-MS sensor profile demo is supported only on the BlueNRG-MS development
platform (STEVAL-IDB005V1) and on BlueNRG-MS daughterboard (STEVAL-IDB005V1D).
5.2
BlueNRG-MS app for smartphones
An application is available for smartphones (iOS and android), that works with the sensor
profile demo. The development kits are preprogrammed with the sensor profile demo
firmware. If the development board has been flashed with another firmware, it can be
programmed with the correct firmware. Refer to Section 4.1 for the programming procedure
using the device firmware upgrade feature and BlueNRG-MS GUI. The correct pre-compiled
firmware can be found inside firmware folder (BlueNRG-MS_SensorDemo.hex). The source
file for the demo is inside the project folder.
This app enables notifications on the acceleration characteristic and displays the value on
the screen. Data from environmental sensors are also periodically read and displayed.
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Figure 23. BlueNRG-MS app
5.3
BlueNRG-MS sensor profile demo: connection with a central
device
This section describes how to interact with a central device, while BlueNRG-MS is acting as
a peripheral. The central device can be another BlueNRG-MS acting as a master, or any
other Bluetooth smart or smart-ready device.
First, BlueNRG-MS must be set up. In order to do this, a series of ACI command need to be
sent to the processor.
5.3.1
Initialization
BlueNRG-MS’s stack must be correctly initialized before establishing a connection with
another Bluetooth LE device. This is done with two commands:
–
aci_gatt_init()
–
aci_gap_init(GAP_PERIPHERAL_ROLE, 0, 0x07, &service_handle,
&dev_name_char_handle, &appearance_char_handle);
Where: Role = GAP_PERIPHERAL_ROLE, privacy_enabled = 0, device_name_char_len =
0x07.
See ACI documentation for more information on these commands and on those that follow
as well. Peripheral role, privacy enabled or not, device name length must be specified inside
the aci_gap_init command.
5.3.2
Add service and characteristics
BlueNRG-MS’s Bluetooth LE stack has both server and client capabilities. A characteristic is
an element in the server database where data are exposed. A service contains one or more
characteristics. Add a service using the following command. Parameters are provided only
as an example.
–
aci_gatt_add_serv(0x01, 0xA001, 0x01, 0x06, &Service_Handle);
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Where: Service_UUID_Type=0x01, Service_UUID_16=0xA001, Service_Type=0x01,
Max_Attributes_Records=0x06.
The command will return the service handle on variable Service_Handle (e.g., 0x000C). A
characteristic must now be added to this service. This service is identified by the service
handle.
–
aci_gatt_add_char (Service_Handle, 0x01, 0xA002, 10, 0x1A,0x00, 0x01, 0x07,
0x01, &Char_Handle);
Where: Char_UUID_Type=0x01, Char_UUID_16=0xA002, Char_Value_Length=10,
Char_Properties=0x1A,Security_Permissions=0x00, GATT_Evt_Mask=0x01,
Enc_Key_Size=0x07, Is_Variable=0x01.
With this command a variable-length characteristic has been added, with read, write and
notify properties. The characteristic handle is also returned on variable Char_Handle.
5.3.3
Set security requirements
BlueNRG-MS exposes a command that the application can use to specify its security
requirements. If a characteristic has security restrictions, a pairing procedure must be
initiated by the central in order to access that characteristic. Let's assume we want the user
to insert a passcode during the pairing procedure.
–
aci_gap_set_authentication_requirement (0x01, 0,0, 7, 16, 123456, 1);
Where: MITM_Mode=0x01, OOB_Enable=0,OOB_Data=0, Min_Encryption_Key_Size=7,
Max_Encryption_Key_Size=16, Use_Fixed_Pin=0, Fixed_Pin=123456, Bonding_Mode=1.
5.3.4
Enter connectable mode
Use GAP ACI commands to enter one of the discoverable and connectable modes.
–
aci_gap_set_discoverable (0x00, 0x800,0x900, 0x00, 0x00, 0x08, local_name,
0x00, 0x00, 0x0000, 0x0000);
Where: Advertising_Type=0x00, Advertising_Interval_Min=0x800,
Advertising_Interval_Max=0x900, Own_Address_Type=0x00,
Advertising_Filter_Policy=0x00, Local_Name_Length=0x08, local_name[] =
{AD_TYPE_COMPLETE_LOCAL_NAME,'B','l','u','e','N','R','G'};
Service_UUID_Length=0x00, Service_UUID_List=0x00,
Slave_Connection_Interval_Min=0x0000, Slave_Connection_Interval_Max=0x0000.
The Local_Name parameter contains the name that will be present in advertising data, as
described in Bluetooth core specification version 4.1, Vol. 3, Part C, Ch. 11.
5.3.5
Connection with central device
Once BlueNRG-MS is put in a discoverable mode, it can be seen by a central device in
scanning.
Any Bluetooth smart and smart-ready device can connect to BlueNRG-MS, such as a
smartphone. LightBlue is one of the applications in the Apple store for iPhone® 4S/5 and
later versions of Apple’s iPhone.
Start the LightBlue application. It will start to scan for peripherals. A device with the
BlueNRG-MS name will appear on the screen. Tap on the box to connect to the device. A
list of all the available services will be shown on the screen. Touching a service will show the
characteristics for that service.
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BlueNRG-MS has added two standard services: GATT Service (0x1801) and GAP service
(0x1800).
Try to read the characteristic from the service just added (0xA001). The characteristic has a
variable length attribute, so you will not see any value. Write a string into the characteristic
and read it back.
BlueNRG-MS can send notifications of the characteristic that has been previously added,
with UUID 0xA002 (after notifications have been enabled). This can be done using the
following command:
–
aci_gatt_update_char_value (Service_Handle, Char_Handle, 0,0x05,'hello');
where: Val_Offset=0, Char_Value_Length=0x05, Char_Value='hello'.
Once this ACI command has been sent, the new value of the characteristic will be displayed
on the phone.
5.4
BlueNRG-MS sensor demo: central profile role
This application implements a basic version of the BlueNRG-MS Sensor Profile Central role
which emulates the BlueNRG-MS Sensor Demo applications available for smartphones
(iOS and Android).
It configures a BlueNRG-MS device as a BlueNRG-MS Sensor device, Central role which is
able to find, connect and properly configure the free fall, acceleration and environment
sensor characteristics provided by a BlueNRG-MS development platform, configured as a
BlueNRG-MS Sensor device, Peripheral role.
This application uses a new set of APIs that allow the performance of the following
operations on a BlueNRG-MS Master/Central device:
– Master Configuration Functions
– Master Device Discovery Functions
– Master Device Connection Functions
– Master Discovery Services & Characteristics Functions
– Master Data Exchange Functions
– Master Security Functions
– Master Common Services Functions
These APIs are provided through binary libraries available on Projects\Bluetooth
LE\Profile_Framework_Central\library. The master library APIs are documented in doxygen
format within the SW package.
The BlueNRG-MS Sensor Demo Central role is supported on the BlueNRG-MS
development platform (STEVAL_IDB005V1), BlueNRG-MS daughterboard (STEVALIDB005V1D) and on BlueNRG-MS USB dongle (STEVAL_IDB006V1).
The sections that follow describe how to use the master library APIs for configuring a
BlueNRG-MS Sensor Demo Central device.
5.4.1
Initialization
BlueNRG-MS's master library must be correctly initialized before establishing a connection
with another Bluetooth LE device. This is done with this command:
– Master_Init(&param)
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param variable allows to set the initialization parameters (device address, name, …).
Refer to the master library doxygen documentation for more information about the
command and related parameters.
On the application main loop, the Master_Process() API has to be called in order to process
the Master library state machines.
5.4.2
Discovery a sensor peripheral device
In order to discover a Sensor Peripheral device, a discovery procedure has to be started
with the master library command:
– Master_DeviceDiscovery(&devDiscParam);
devDiscParam variable allows to set the discovery parameters (discovery procedure,
interval, window, …).
Refer to the master library doxygen documentation for more information about the
command and related parameters.
The found devices are returned through the Master_DeviceDiscovery_CB() master library
callback (DEVICE_DISCOVERED status).
5.4.3
Connect to discovered sensor peripheral device
Once a Sensor Peripheral device has been found, the Sensor Central device connects to it
by using the following master library command:
– Master_DeviceConnection(&connParam);
connParam variable allows to set the connection parameters (connection procedure, scan
duration, window,…).
Refer to the master library doxygen documentation for more information about the
command and related parameters.
When the connection is established with success, the Master_Connection_CB() master
library callback is called with CONNECTION_ESTABLISHED_EVT event.
5.4.4
Discovery sensor peripheral services and characteristics
Once a Sensor Peripheral device has been connected, the Sensor Central device starts
discovery all primary service procedure, by using the following master library command:
– Master_GetPrimaryServices()
Refer to the master library doxygen documentation for more information about the
command and related parameters.
When services are discovered, the Master_ServiceCharacPeerDiscovery_CB master library
callback is called with PRIMARY_SERVICE_DISCOVERY code. In particular the sensor
and environmental services are discovered.
For each discovered service, the related characteristics are discovered by using the
following master library command:
– Master_GetCharacOfService()
Refer to the master library doxygen documentation for more information about the
command and related parameters.
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When the characteristics of a service are discovered, the
Master_ServiceCharacPeerDiscovery_CB master library callback is called with
GET_CHARACTERISTICS_OF_A_SERVICE code. In particular the sensor acceleration,
free fall and temperature characteristics are discovered.
5.4.5
Enable sensor peripheral acceleration and free fall notifications
Once the Sensor Peripheral device sensor acceleration and free fall characteristics have
been discovered, the Sensor Central device can enable the related characteristics
notification by using the following master library command:
– Master_NotifIndic_Status(masterContext.connHandle, handle, TRUE, FALSE);
Refer to the master library doxygen documentation for more information about the
command and related parameters.
When a characteristic notification is enabled, the Master_PeerDataExchange_CB() master
library callback is called with NOTIFICATION_INDICATION_CHANGE_STATUS code. On a
Sensor Central device context, the sensor acceleration and free fall characteristics
notifications coming from the Sensor Peripheral device are received through the
Master_PeerDataExchange_CB() master library callback,
NOTIFICATION_DATA_RECEIVED code. Each received values is displayed on the
connected hyper terminal (115200, 8, N, 1).
5.4.6
Read the sensor peripheral temperature sensor characteristic
Once the Sensor Peripheral device sensor temperature characteristic is discovered, the
Sensor Central device can read the related characteristic value by using the following
master library command:
– Master_Read_Value()
Refer to the master library doxygen documentation for more information about the
command and related parameters.
The characteristic value is received though the Master_PeerDataExchange_CB() master
library callback, READ_VALUE_STATUS code. Each received value is also displayed on
the connected hyper terminal (115200, 8, N, 1).
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BlueNRG-MS chat demo application
The software development kit contains another example, which implements a simple 2-way
communication between two BlueNRG-MS devices. It shows a simple point-to-point
wireless communication using the BlueNRG-MS product.
This demo application exposes one service: chat service.
The chat service contains 2 characteristics:
•
The TX characteristic: the client can enable notifications on this characteristic. When
the server has data to be sent, it will send notifications which will contain the value of
the TX characteristic.
•
The RX characteristic: this is a writable characteristic. When the client has data to be
sent to the server, it will write a value into this characteristic.
•
The maximum length of the characteristic value is 20 bytes.
There are 2 device roles which can be selected through the specific EWARM workspace:
–
The “Server” that exposes the chat service (BLE peripheral device).
–
The “Client” that uses the chat service (BLE central device).
The application requires 2 devices to be programmed respectively with the 2 devices roles:
server and client. The user must connect the 2 devices to a PC through USB and open a
serial terminal on both, with the following configurations:
Table 13. Serial port configuration
Baudrate
115200
bit/sec
Data bits
8
bit
Parity
None
bit
Stop bits
1
bit
The application will listen for keys typed into one device and upon pressing the keyboard
return key, it will send them to the remote device. The remote device will listen for RF
messages and will output them in the serial port. In other words, anything typed in one
device will be visible to the other device.
6.1
Supported platforms
The BlueNRG-MS chat demo (server & client roles) is supported on the BlueNRG-MS
development platform (STEVAL_IDB005V1), BlueNRG-MS daughterboard (STEVALIDB005V1D) and on BlueNRG-MS USB dongle (STEVAL_IDB006V1).
6.2
BlueNRG-MS chat demo application: peripheral & central
devices
This section describes how two BLE chat devices (server-peripheral & client-central)
interact with each other in order to set up a point-to-point wireless chat communication.
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BlueNRG-MS chat demo application
First, BlueNRG-MS must be set up on both devices. In order to do this, a series of ACI
commands need to be sent to the processor.
6.2.1
Initialization
BlueNRG-MS’s stack must be correctly initialized before establishing a connection with
another Bluetooth LE device. This is done with two commands
•
aci_gatt_init()
•
BLE Chat, “Server” role:
–
aci_gap_init(GAP_PERIPHERAL_ROLE, 0, 0x07, &service_handle,
&dev_name_char_handle, &appearance_char_handle);
BLE Chat, “Client role:
–
aci_gap_init(GAP_CENTRAL_ROLE, 0, 0x07, &service_handle,
&dev_name_char_handle, &appearance_char_handle);
Peripheral & central BLE roles must be specified inside the GAP_INIT command. See ACI
documentation for more information on these commands and on those that follow.
6.2.2
Add service and characteristics
The chat service is added on the BLE chat, server role device using the following command:
aci_gatt_add_serv(UUID_TYPE_128, service_uuid, PRIMARY_SERVICE, 7,
&chatServHandle);
Where service_uuid is the private service UUID 128 bits allocated for the chat service
(Primary service).
The command will return the service handle in chatServHandle.
The TX characteristic is added using the following command (on BLE Chat, Server role
device):
aci_gatt_add_char(chatServHandle, UUID_TYPE_128, charUuidTX, 20,
CHAR_PROP_NOTIFY, ATTR_PERMISSION_NONE, 0, 16, 1, &TXCharHandle);
Where charUuidTX is the private characteristic UUID 128 bits allocated for the TX
characteristic (notify property). The characteristic handle is also returned (on
TXCharHandle).
The RX characteristic is added using the following command (on BLE Chat, Server role
device):
aci_gatt_add_char(chatServHandle, UUID_TYPE_128, charUuidRX, 20,
CHAR_PROP_WRITE|CHAR_PROP_WRITE_WITHOUT_RESP,
ATTR_PERMISSION_NONE, GATT_SERVER_ATTR_WRITE,16, 1, &RXCharHandle);
Where charUuidRX is the private characteristic UUID 128 bits allocated for the RX
characteristic (write property). The characteristic handle is also returned (on
RXCharHandle).
See ACI documentation for more information on these commands as well as those that
follow.
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BlueNRG-MS chat demo application
6.2.3
UM1870
Enter connectable mode
On BLE chat, server role device uses GAP ACI commands to enter into general
discoverable mode:
aci_gap_set_discoverable(ADV_IND, 0, 0, PUBLIC_ADDR, NO_WHITE_LIST_USE,8,
local_name, 0, NULL, 0, 0);
The local_name parameter contains the name that will be present in advertising data, as
described in the Bluetooth core specification version 4.1, Vol. 3, Part C, Ch. 11.
6.2.4
Connection with central device
Once the BLE chat, server role device is put in a discoverable mode, it can be seen by the
BLE chat, client role device in order to create a Bluetooth low energy connection.
On BLE chat, client role device uses GAP ACI commands to connect with the BLE chat,
server role device in advertising mode:
aci_gap_create_connection(0x4000, 0x4000, PUBLIC_ADDR, bdaddr, PUBLIC_ADDR, 9,
9, 0, 60, 1000, 1000);
where bdaddr is the peer address of the BLE chat, client role device.
Once the 2 devices are connected, the user can set up a serial terminal and type into each
of them. The typed characters will be respectively stored in 2 buffers and upon pressing the
keyboard return key, BLE communication will work as follows:
1.
On BLE chat, server role device, the typed characters will be sent to BLE chat, client
role device by notifying the TX characteristic that has been previously added (after
notifications have been enabled). This can be done using the following command:
aci_gatt_update_char_value(chatServHandle,TXCharHandle,0,len,(tHalUint8 *)cmd+j)
2.
On BLE chat, client role device, the typed characters will be sent to the BLE chat,
server role device, by writing the RX characteristic that has been previously added.
This can be done using the following command:
aci_gatt_write_without_response(connection_handle, RX_HANDLE+1, len, (tHalUint8
*)cmd+j)
Where connection_handle is the handle returned on connection creation as a
parameter of the EVT_LE_CONN_COMPLETE event.
Once these ACI commands have been sent, the values of the TX, RX characteristics are
displayed on the serial terminals.
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BlueNRG-MS chat demo application
Figure 24. BLE chat client example
Figure 25. BLE chat server example
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BlueNRG-MS Beacon demonstration application
7
UM1870
BlueNRG-MS Beacon demonstration application
The software development kit contains another example, which shows how to configure a
BlueNRG-MS device to advertise specific manufacturing data and allow another BLE device
to know if it is in the range of the BlueNRG-MS beacon device.
7.1
Supported platforms
The BlueNRG-MS Beacon demo is supported by the BlueNRG-MS development platform
(STEVAL_IDB005V1), BlueNRG-MS daughterboard (STEVAL-IDB005V1D) and on
BlueNRG-MS USB dongle (STEVAL_IDB006V1).
7.2
BLE Beacon application setup
This section describes how to configure a BlueNRG-MS device for acting as a beacon
device.
7.2.1
Initialization
The BlueNRG-MS stack must be correctly initialized as follows:
– aci_gatt_init()
– aci_gap_init(GAP_PERIPHERAL_ROLE, 0, 0x07, &service_handle,
&dev_name_char_handle, &appearance_char_handle)
7.2.2
Define advertising data
The BLE Beacon application advertises the following manufacturing data:
Table 14. BlueNRG-MS Beacon advertising manufacturing data
Note:
Data field
Description
Notes
Company identifier code
SIG company identifier
Default is 0x0030
(STMicroelectronics)
ID
Beacon ID
Fixed value
Location UUID
Beacons UUID
Used to distinguish specific
beacons from others
Major number
Identifier for a group of beacons
Used to group a related set of
beacons
Minor number
Identifier for a single beacon
Used to identify a single beacon
Tx Power
2's complement of the Tx power
Used to establish how far you
are from device
SIG company identifiers are available at:
https://www.bluetooth.org/en-us/specification/assigned-numbers/company-identifiers
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7.2.3
BlueNRG-MS Beacon demonstration application
Entering non-connectable mode
The BLE Beacon device uses the GAP ACI command to enter non-connectable mode as
follows:
aci_gap_set_discoverable(ADV_NONCONN_IND, 160, 160, PUBLIC_ADDR,
NO_WHITE_LIST_USE,0, NULL, 0, NULL, 0, 0);
In order to advertise the specific selected manufacturer data, the BLE Beacon application
uses the following GAP ACIs:
/* Remove TX power level field from the advertising data: it is necessary to have enough
space for the beacon manufacturing data */
ret = aci_gap_delete_ad_type(AD_TYPE_TX_POWER_LEVEL);
/* Define the beacon manufacturing payload */
const uint8_t manuf_data[] = {26, AD_TYPE_MANUFACTURER_SPECIFIC_DATA,
0x30, 0x00, //Company identifier code (Default is 0x0030 - STMicroelectronics)
0x02,
// ID
0x15,
//Length of the remaining payload
0xE2, 0x0A, 0x39, 0xF4, 0x73, 0xF5, 0x4B, 0xC4, //Location UUID
0xA1, 0x2F, 0x17, 0xD1, 0xAD, 0x07, 0xA9, 0x61,
0x00, 0x00, // Major number
0x00, 0x00, // Minor number
0xC8
//2's complement of the Tx power (-56dB)};
};
/* Set the beacon manufacturing data on the advertising packet */
ret = aci_gap_update_adv_data(27, manuf_data);
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BLE remote control demo application
8
UM1870
BLE remote control demo application
This demo application shows how to control a remote device (like an actuator) using a
BlueNRG-MS device.This application periodically sends broadcast data (temperature
values) that can be read by any device. The broadcast data is encapsulated in a
manufacturer-specific AD type. The data content (besides the manufacturer ID, i.e. 0x0030
for STMicroelectronics) is as follows:
Table 15. BLE remote advertising data
Byte 0
Byte 1
App ID (0x05)
Byte2
Temperature value (little-endian)
The temperature value is given in tenths of degrees Celsius.
The device is also connectable and exposes a characteristic used to control the LEDs on
the BlueNRG-MS platform. The value of this characteristic is a bitmap of 1 byte. Each bit
controls one of the LEDs:
• bit 0 is the status of LED 1
• bit 1 is the status of LED 2.
• bit 2 is the status of LED 3.
• bit 3 is the status of LED 4.
• bit 4 is the status of LED 5.
As a consequence, a remote device can connect and write this byte to change or read the
status of these LEDs (1 for LED ON, 0 for LED OFF).
The peripheral disconnects after a timeout (DISCONNECT_TIMEOUT), to prevent that a
central is always connected to the device.
By default, no security is used, but it can be enabled with ENABLE_SECURITY (refer to file
BLE_RC_main.h). When security is enabled the central has to be authenticated before
reading or writing the device characteristic.
In order to interact with a BlueNRG-MS device configured as a BLE Remote control, another
BLE device (a BlueNRG-MS or any SMART READY device) can be used to scan and see
broadcast data.
To control one of the LEDs, the device has to connect to a BlueNRG-MS BLE Remote
Control device and write into the exposed control point characteristic. The Service UUID is
ed0ef62e-9b0d-11e4-89d3-123b93f75cba. The control point characteristic UUID is
ed0efb1a-9b0d-11e4-89d3-123b93f75cba.
8.1
Supported platforms
The BlueNRG-MS BLE Remote Control is supported on the BlueNRG-MS development
platform (STEVAL_IDB005V1), BlueNRG-MS daughterboard (STEVAL-IDB005V1D) and on
BlueNRG-MS USB dongle (STEVAL_IDB006V1).
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8.2
BLE remote control demo application
BLE remote control application setup
This section describes how to configure a BlueNRG-MS device to acting as a remote control
device.
8.2.1
Initialization
The BlueNRG-MS's stack must be correctly initialized before establishing a connection with
another Bluetooth LE device. This is done with two commands
• aci_gatt_init()
• aci_gap_init(GAP_PERIPHERAL_ROLE, 0, 0x07, &service_handle,
&dev_name_char_handle, &appearance_char_handle);
8.2.2
Define advertising data
The BLE Remote Control application advertises some manufacturing data as follows:
/* Set advertising device name as Node */
const uint8_t scan_resp_data[] =
{0x05,AD_TYPE_COMPLETE_LOCAL_NAME,'N','o','d','e'}
/* Set scan response data */
hci_le_set_scan_resp_data(sizeof(scan_resp_data),scan_resp_data);
/* Set Undirected Connectable Mode */
ret = aci_gap_set_discoverable(ADV_IND, (ADV_INTERVAL_MIN_MS*1000)/625,
(ADV_INTERVAL_MAX_MS*1000)/625, PUBLIC_ADDR, NO_WHITE_LIST_USE, 0,
NULL, 0, NULL, 0, 0);
/* Set advertising data */
ret = hci_le_set_advertising_data(sizeof(adv_data),adv_data);
On the BlueNRG-MS development platform (STEVAL-IDB005V1), the temperature sensor
value is set within the adv_data variable.
8.2.3
Add service and characteristics
The BLE Remote Control service is added using the following command:
aci_gatt_add_serv(UUID_TYPE_128, service_uuid, PRIMARY_SERVICE, 7,
&RCServHandle);
Where service_uuid is the private service 128-bit UUID allocated for the BLE remote service
(ed0ef62e-9b0d-11e4-89d3-123b93f75cba).
The command returns the service handle in RCServHandle.
The BLE Remote Control characteristic is added using the following command:
#if ENABLE_SECURITY
ret = aci_gatt_add_char(RCServHandle, UUID_TYPE_128, controlPointUuid, 1,
CHAR_PROP_READ|CHAR_PROP_WRITE|CHAR_PROP_WRITE_WITHOUT_RESP|CH
AR_PROP_SIGNED_WRITE,
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BLE remote control demo application
UM1870
ATTR_PERMISSION_AUTHEN_READ|ATTR_PERMISSION_AUTHEN_WRITE,
GATT_NOTIFY_ATTRIBUTE_WRITE, 16, 1, &controlPointHandle);
#else
ret = aci_gatt_add_char(RCServHandle, UUID_TYPE_128, controlPointUuid, 1,
CHAR_PROP_READ|CHAR_PROP_WRITE|CHAR_PROP_WRITE_WITHOUT_RESP,
ATTR_PERMISSION_NONE, GATT_NOTIFY_ATTRIBUTE_WRITE, 16, 1,
&controlPointHandle);
#endif
Where controlPointUuid is the private characteristic 128-bit UUID allocated for BLE Remote
Control characteristic (ed0efb1a-9b0d-11e4-89d3-123b93f75cba).
If security is enabled, the characteristic properties must be set accordingly to enable
authentication on controlPointUuid characteristic read and write.
8.2.4
Connection with a BLE Central device
When connected to a BLE Central device (another BlueNRG-MS device or any SMART
READY device), the controlPointUuid characteristic is used to control the BLE Remote
Control platform LED. Each time a write operation is done on controlPointUuid, the
EVT_BLUE_GATT_ATTRIBUTE_MODIFIED event is raised on the HCI_Event_CB ()
callback and the selected LED/LEDs are turned on or off.
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9
List of acronyms
List of acronyms
Table 16. List of acronyms used in this document
Term
Meaning
BLE
Bluetooth low energy
IFR
Information register
USB
Universal serial bus
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DocID027602 Rev 2
UM1870
Available board schematics
Figure 36. STEVAL-IDB006V1 USB dongle schematics
*63*6*
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71
Revision history
11
UM1870
Revision history
Table 17. Document revision history
Date
Revision
14-May-2015
1
Initial release
2
Added:
- Section 2.4: STEVAL-IDB006V1 USB dongle
- Figure 36: STEVAL-IDB006V1 USB dongle schematics
Updated:
- Figure 3, Figure 9, Figure 13, Figure 14, Figure 15 and
Figure 16.
03-Dec-2015
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Changes
DocID027602 Rev 2
UM1870
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