ST STEVAL-MKI132V1 Manual de usuario

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January 2013 Doc ID 023744 Rev 1 1/26

UM1579

User manual

STEVAL-MKI132V1- BlueMotion motherboard for MEMS

adapter boards

Introduction

The STEVAL-MKI132V1 (BlueMotion) motherboard is designed to provide the user with a

complete ready-to-use platform for the demonstration of MEMS devices mounted on

adapter boards.

This STEVAL-MKI132V1 demonstration board uses an STM32F103TB microcontroller and

an SPBT2532C2.AT Bluetooth

module; it functions as a bridge between the sensor on the

adapter board and the PC. It is possible to connect the BlueMotion to the PC using the

Bluetooth module and using the Unico graphical user interface (GUI), downloadable from

the ST website, or dedicated software routines for customized applications.

This user manual describes the hardware included with the demonstration board and

provides the information required to install and run the demonstration board user interface.

For details regarding the features of each sensor, please refer to the datasheets available for

each individual device.

www.st.com

Contents UM1579

2/26 Doc ID 023744 Rev 1

Contents

1 Demonstration board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 BlueMotion board installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 Establishing Bluetooth connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Supported MEMS adapter boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4 Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2.1 Commands list and description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2.2 Digital output accelerometers: supported commands . . . . . . . . . . . . . . 19

4.2.3 Digital output gyroscopes: supported commands . . . . . . . . . . . . . . . . . 20

4.2.4 Digital output magnetometers: supported commands . . . . . . . . . . . . . . 20

4.3 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5 Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

UM1579 Demonstration board description

Doc ID 023744 Rev 1 3/26

1 Demonstration board description

The BlueMotion is a complete demonstration board that allows the demonstration of both

digital and analog MEMS sensors. Thanks to its DIL 24 connector, a wide range of MEMS

adapter boards can be used.

The block diagram of the demonstration board is shown in Figure 1.

Figure 1. Demonstration board block diagram

As shown in Figure 1, the BlueMotion demonstration board is based on the STM32F103TB

microcontroller and can be connected to the PC through Bluetooth. Data coming from the

MEMS sensor connected to the board can be read through the PC GUI provided with the

board.

The BlueMotion can be flashed with compatible firmware using an SWD connector or a

UART connector. See www.st.com/mems for new firmware releases.

The following steps are required to flash the board using UART:

1. Connect the BlueMotion to the PC using a UART connector (use the FS and ST pins of

the J2 connector shown in Figure 10).

2. Set the BOOT0 pin of the DIL 24 device adapter high.

3. Power up the board.

4. Use the STM32 flash loader utility to establish a UART connection with the BlueMotion.

The recommended settings are shown in Figure 2.

STM32F103TB

µC

MEMS

device Bluetooth

UART

Interrupt LEDs

General Purpose LEDs

DIL 24

Connector

I2C

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Figure 2. Connecting BlueMotion using UART

Download the hexadecimal file of the firmware on BlueMotion using the STM32 flash loader

utility. For further details, refer to the utility’s user manual.

Figure 3. Downloading firmware using UART

AM14752V1

AM14753V1

UM1579 Demonstration board description

Doc ID 023744 Rev 1 5/26

Figure 4. Connecting BlueMotion using UART

The BlueMotion also integrates one general purpose LED, and two LEDs connected directly

to the interrupt pins of the digital adapters.

The top view and the bottom view of the full board are shown in Figure 5 and Figure 6

respectively.

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Figure 5. Board top view

Figure 6. Board bottom view

The BlueMotion demonstration board can be used with the Unico GUI interface which allows

simple interaction with the sensor. The steps required for establishing a Bluetooth

connection with the board and accessing it are discussed in the following sections.

ref 2

ref 1

ref 3

ref 4

ref 5

ref 6

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In Figure 5 some of the main components placed on the top layer of the BlueMotion board

are highlighted.

●

The dual power supply connector J1 (Figure 5, ref 1) can be used to supply power in

one of the two possible modes. Pin 2 on must be connected to ground. The board can

be powered with either a 1.5 V supply, e.g. an AA battery, connected to Pin 1 or with a

supply in the range 3.5 V - 6.0 V. connected to Pin 3.

●

The SWD connector J3 can (Figure 5, ref 2) be used to program the BlueMotion board.

●

Jumper JP1 allows the user to measure the sensor current consumption by connecting

a multimeter in series with its terminals when a 1.5 V power supply is used (Figure 5,

ref 3).

●

Jumper JP2 allows the user to measure the sensor current consumption by connecting

a multimeter in series with its terminals when a power supply in the range 3.5 V - 6.0 V

is used (Figure 5, ref 4).

BlueMotion also integrates three LEDs:

●

LED D5 (Figure 5, ref 5) is a general purpose LED and is used to indicate some

firmware states.

●

LEDs D6 and D7 (Figure 5, ref 6) are directly connected to the interrupt pins of the

MEMS digital adapters (if available on the sensor mounted on the adapter board).

BlueMotion board installation UM1579

8/26 Doc ID 023744 Rev 1

2 BlueMotion board installation

The software package can be downloaded from the st.com website and includes the

following directory structure:

●

FIRMWARE: it contains the source code of the firmware of the BlueMotion board

together with the corresponding binary file that can be flashed to the board.

The section below describes the procedure for establishing a Bluetooth connection with the

BlueMotion board.

2.1 Establishing Bluetooth connection

A Bluetooth connection to the BlueMotion board can be established in three steps:

searching the BlueMotion device, pairing it and connecting to it. To search the device, open

the “Bluetooth Places” using the Bluetooth software on your PC and click on “Search

Devices“. The BlueMotion board should appear with the name “eMotion BT”, as shown in

Figure 7.

UM1579 BlueMotion board installation

Doc ID 023744 Rev 1 9/26

Figure 7. Searching the BlueMotion board

To pair the device right click on the icon “eMotion BT” and select “Pair”. Enter “1234” in the

“Passkey” field in the dialogue-box (shown in Figure 8) and click “OK”.

AM14729V1

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