ST STEVAL-MKI109V2 Bedienungsanleitung

November 2014 DocID017768 Rev 4 1/39

UM0979

User manual

STEVAL-MKI109V2:

eMotion motherboard for MEMS adapter boards

Introduction

The STEVAL-MKI109V2 (eMotion) is a motherboard designed to provide the user with a

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

adapter boards.

The STEVAL-MKI109V2 uses an STM32F103RET6 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 the demonstration board and how to upgrade the firmware

of the microcontroller.

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

each individual device.

www.st.com

Contents UM0979

2/39 DocID017768 Rev 4

Contents

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

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

2.1 Hardware installation (Windows platforms) . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 DFU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.1 DFU on Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2.2 DFU on Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2.3 DFU on Mac OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3 Supported MEMS adapter boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4 Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2 Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2.1 Commands list and description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.2 Digital output accelerometers: supported commands . . . . . . . . . . . . . . 26

4.2.3 Analog output accelerometers: supported commands . . . . . . . . . . . . . . 27

4.2.4 Digital output gyroscopes: supported commands . . . . . . . . . . . . . . . . . 28

4.2.5 Analog output gyroscopes: supported commands . . . . . . . . . . . . . . . . . 29

4.2.6 Digital output magnetometers: supported commands . . . . . . . . . . . . . . 29

4.2.7 Digital output pressure sensor: supported commands . . . . . . . . . . . . . 30

4.2.8 Digital output humidity sensor: supported commands . . . . . . . . . . . . . . 31

4.3 Quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5 Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

DocID017768 Rev 4 3/39

UM0979 List of tables

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 3. Supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 4. Returned values for *start command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 5. Returned values for *debug command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 6. Digital output accelerometers: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Table 7. Analog output accelerometers: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . 27

Table 8. Digital output gyroscopes: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 9. Analog output gyroscopes: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 10. Digital output magnetometer: supported commands list. . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 11. Digital output pressure sensor: supported commands list . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table 12. Digital output humidity sensor: supported commands list. . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 13. Bill of materials for STEVAL-MKI109V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 14. Document revision history. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

List of figures UM0979

4/39 DocID017768 Rev 4

List of figures

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

Figure 2. Top silkscreen of the eMotion kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

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

Figure 4. Notification message. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 5. Virtual COM port assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 6. eMotion board (power supply and USB). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 7. STEVAL-MKI109V2 eMotion board (STM32F103RET6 and connectors) . . . . . . . . . . . . . 34

DocID017768 Rev 4 5/39

UM0979 Demonstration kit description

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 STM32F103RET6

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 releases.

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 silkscreen view and image of the full board are shown in Figure 2 and Figure 3

respectively.

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Demonstration kit description UM0979

6/39 DocID017768 Rev 4

Figure 2. Top silkscreen of the eMotion kit

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DocID017768 Rev 4 7/39

UM0979 Demonstration kit description

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 JP10 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 Table 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.

AM07758v1

ref 1

ref 4

ref 2 ref 3

ref 6

ref 8 ref 7ref 9

ref 11

ref 12

ref 5

ref 13

ref 10

Demonstration kit description UM0979

8/39 DocID017768 Rev 4

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 firmware states. 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 ON

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

DocID017768 Rev 4 9/39

UM0979 eMotion board installation

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. No driver is needed on Linux and Mac OS platforms, so this

directory is included in the Windows installation package only.

DFU: it contains the .dfu files and the installation package for the software needed to

upgrade the firmware of the eMotion board.

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 section below describes the procedure to install the driver for the eMotion board

(needed on Windows platforms only) and the DFU software.

2.1 Hardware installation (Windows platforms)

No driver installation is needed on Linux and Mac OS platforms.

To install the STM32 virtual COM port driver on Windows platforms, launch the

“VCPDriver_V1.1_Setup.exe” included in the Windows installation 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. A notification message should appear, as

in Figure 4.

Figure 4. Notification message

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

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 5) the COM11 has been assigned to the board.

eMotion board installation UM0979

10/39 DocID017768 Rev 4

Figure 5. Virtual COM port assignment

2.2 DFU

The MEMS STEVAL-MKI109V2 demonstration board is capable of reprogramming an

application through the USB, in accordance with the DFU class specification defined by the

USB Implementers Forum. This capability is useful because it allows reprogramming the

microcontroller directly in the field and is particularly well-suited to USB applications where

the same USB connector can be used both for the standard operating mode and for the

reprogramming process.

In order to configure the eMotion board in DFU mode button SW2 must be pressed before

supplying the board and released when the LEDs D1, D4, D5, and D6 light up.

If the firmware version in use is lower than V3.0.0.0, it’s mandatory to patch the DFU feature

using the “DFU_Patcher_V1.0.2.dfu” file available under the “DFU” folder before proceeding

with the upgrade of the firmware with a version equal to or higher than V3.0.0.0. The

procedure to patch the DFU feature corresponds to the one used during a standard

firmware upgrade with the DFU tool. At the end of this procedure, if the green LED D4 is on,

it indicates that the procedure is successfully completed; if the red LED D5 is on, the

procedure failed and has to be repeated. Before proceeding with the new firmware upgrade

the board must be reset using the SW3 button.

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