ST EMotion STEVAL-MKI109V1 Manuel utilisateur

March 2011 Doc ID 17768 Rev 1 1/32

UM0979

User manual

STEVAL-MKI109V1 - eMotion

motherboard for MEMS adapter board

Introduction

The STEVAL-MKI109V1 (eMotion) is a motherboard designed to provide the user with a

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

boards.

The eMotion board uses an STM32F102RB microcontroller which functions as a bridge

between the sensor on the adapter board and the PC, on which it is possible to use 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 kit and provides

the information required to install and run the demonstration kit user interface.

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

each individual device.

www.st.com

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Contents UM0979

2/32 Doc ID 17768 Rev 1

Contents

1 Demonstration kit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 eMotion board installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1 Hardware installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 DFU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

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 . . . . . . . . . . . . . . 21

4.2.3 Analog output accelerometers: supported commands . . . . . . . . . . . . . 22

4.2.4 Digital output gyroscopes: supported commands . . . . . . . . . . . . . . . . . 23

4.2.5 Analog output gyroscopes: supported commands . . . . . . . . . . . . . . . . . 24

4.2.6 Digital output pressure sensor: supported commands . . . . . . . . . . . . . 25

4.3 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

6 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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UM0979 List of tables

Doc ID 17768 Rev 1 3/32

List of tables

Table 1. Jumper configuration for power-down (PD), self test (ST) and high-pass filter reset (HP). . 8

Table 2. List of supported MEMS adapter boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 3. Supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 4. Returned values for *start command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 5. Returned values for *debug command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 6. Digital output accelerometers: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 7. Analog Output Accelerometers: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 8. Digital output gyroscopes: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 9. Analog output gyroscopes: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 10. Digital output pressure sensor: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 11. Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 12. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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List of figures UM0979

4/32 Doc ID 17768 Rev 1

List of figures

Figure 1. Demonstration board block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2. Top silk screen of the eMotion kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3. Board top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 4. Notify icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 5. Hardware update Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 6. Virtual COM driver port assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 7. Schematic diagram of the eMotion board (power supply and USB) . . . . . . . . . . . . . . . . . . 26

Figure 8. Schematic diagram of the eMotion board (STM32 and connectors). . . . . . . . . . . . . . . . . . 27

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UM0979 Demonstration kit description

Doc ID 17768 Rev 1 5/32

1 Demonstration kit description

The eMotion is a complete demonstration kit that allows 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 kit is shown in Figure 1.

Figure 1. Demonstration board block diagram

As shown in the Figure 1, the eMotion demonstration kit is based on the STM32F102RB

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

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

The eMotion also implements the DFU (device firmware upgrade) feature, therefore, in the

case of a new firmware release, it can be reprogrammed without the need to use a

programmer. See www.st.com/mems for new firmware release.

The eMotion also integrates three general purpose LEDs, two LEDs connected directly to

the interrupt pins of digital adapters and the power/USB LED. Moreover, the eMotion

integrates three buttons: two are available to the user on a dedicated GPIO of the

microcontroller, while the other is used as reset for the microcontroller.

All the MEMS adapter pins are available on two connectors placed on the board (Figure 2

JP2 and JP3).

The top silk screen view and image of the full board are shown in Figure 2 and Figure 3

respectively.

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Demonstration kit description UM0979

6/32 Doc ID 17768 Rev 1

Figure 2. Top silk screen of the eMotion kit

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UM0979 Demonstration kit description

Doc ID 17768 Rev 1 7/32

Figure 3. Board top view

In order to use the eMotion demonstration kit, installation of a dedicated driver is required,

which is included in the installation pack, together with a GUI interface which allows simple

interaction with the sensor. The steps required for driver and software installation are

described in the following sections.

In Figure 3 some main components placed on the top layer of the eMotion kit are

highlighted.

●Jumpers JP9 and JP10 (Figure 3, ref 10, ref 11) are used to select the STM32 boot

mode. When the eMotion is used together with MEMS adapters, JP9 and J1P0 must be

fitted (see STM32 datasheet for more information).

●Jumper J2 (Figure 3, ref 7) can be used to directly supply the board (from 3.5 V to 6 V)

instead of using the USB connector.

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

a multimeter in series with its terminals (Figure 3, ref 9).

●Jumpers JP4, JP5, and JP6 (Figure 3, ref 8) are used to manually set some features

which are available for just some of the analog MEMS adapters (see Ta b l e 1 for more

details). JP4 is used to set the self test feature, JP5 to handle the power-down pin, and

JP6 to reset the MEMS high-pass filter. When they are fitted on pins 2-3, these

functions are handled by the firmware itself.

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Demonstration kit description UM0979

8/32 Doc ID 17768 Rev 1

●J1 connector (Figure 3, ref 3) can be used to both reprogram the STM32 and to debug

the code through the JTAG or SWD protocols.

●Jumper JP7 (Figure 3, ref 4) is used to select either JTAG (JP7 unfitted) or SWD (JP7

fitted) mode.

eMotion also integrates six LEDs and three buttons:

●LED D1 (Figure 3, ref 6) is switched on when the board is power supplied.

●LEDs D2 and D3 (Figure 3, ref 13) are directly connected to the interrupt pins of the

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

●LEDs D4, D5, and D6 (Figure 3, ref 12) are general purpose LEDs and are used to

indicate some firmware state. For example, LED D6 is switched on when a specific

firmware is selected from those available. LED D5 on indicates that the microcontroller

is well configured for communication with the sensor. Finally the LED D4, blinks

according to the sensor data rate selected.

●Button SW3 (Figure 3, ref 1) is used to reset the STM32.

●Button SW1 and SW2 (Figure 3, ref 2 and ref 5) are connected to STM32 GPIOs and

are available to the user.

Table 1. Jumper configuration for power-down (PD), self test (ST) and high-pass

filter reset (HP)

Jumper on 1-2

position

Jumper on 2-3

position Jumper unfitted

JP4

logic level 1: self test

Self test is handled by

the firmware

logic level 0: self test

OFF, default

JP5

logic level 1: power-

down mode

Power-down is handled

by the firmware

logic level 0: normal

mode, default

JP6

logic level 1: external

high-pass filter reset

High-pass filter reset is

handled by the

firmware

logic level 0: normal

mode, default

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UM0979 eMotion board installation

Doc ID 17768 Rev 1 9/32

2 eMotion board installation

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

following directory structure:

●DRIVER: it contains the installation package for the USB drivers needed to connect the

eMotion board to the PC

●DFU: it contains the installation package for the software needed to upgrade the

firmware of the eMotion board (DFU)

●FIRMWARE: it contains the source code of the firmware of the eMotion board together

with the corresponding binary file that can be flashed to the board using the DFU

software.

The sections below describe the procedure to install the driver for the eMotion board and the

DFU software.

2.1 Hardware installation

To install the STM32 virtual COM port driver, launch the “VCPDriver_V1.1_Setup.exe”

included in the package under the “DRIVER” folder and follow the instructions on the

screen. Once the driver is installed, insert the demonstration kit board into a free USB port.

The “Notify” icon should appear, as in Figure 4.

Figure 4. Notify icon

The “Hardware Update Wizard” window then appears (Figure 5), follow the instructions on

the screen to complete the procedure. When driver installations starts, the user is prompted

with the “Hardware Installation” dialog window, click the “Continue Anyway” button.

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eMotion board installation UM0979

10/32 Doc ID 17768 Rev 1

Figure 5. Hardware update Wizard

Now the eMotion should be recognized by the PC as a virtual COM. In order to check which

COM port has been assigned to the board, right click on “My Computer” and select

“Manage”, select “Device Manager” and scroll through the list until “Ports(COM & LPT)”. In

the following example (Figure 6) the COM11 has been assigned to the board.

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