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UM0855: DescriptionDemonstration kit for single; File Size1MB，35 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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UM0855 Overview

Demonstration kit for single

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UM0855

User manual

Demonstration kit for single and

double axis gyroscopes in a 4 x 5 mm package

Introduction

This document applies to all demonstration kits related to ST MEMS single and double axis

gyroscopes in 4 x 5 mm packages, hereafter referred to as “STEVAL-MKI0xxV1”.

The STEVAL-MKI0xxV1 is a demonstration kit designed to provide the user with a complete,

ready-to-use platform for demonstration of the LPR4xxAL and LPR4xxxAL product families.

The device includes a sensing element and an IC interface capable of translating

information from the sensing element into a measured signal that can be used for external

applications.

In addition to the MEMS sensor, the demonstration board utilizes an ST72651AR6

microcontroller which functions as a bridge between the sensor and the PC, on which it is

possible to use the downloadable graphical user interface (GUI), 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 member of the LPR4xxAL and LPR4xxxAL sensor

families, please refer to the datasheets available for each single device.

November 2009

Doc ID 16617 Rev 1

1/35

www.st.com

Contents

UM0855

Contents

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

Working modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1

2.2

2.3

Analog working mode (AWM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Digital working mode (DWM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Additional settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

STEVAL-MKI0xxV1 GUI installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1

3.2

3.3

PC system requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Software installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Hardware installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Graphical user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.1

4.2

Connecting to the virtual COM port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

GUI main window functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2.1

4.2.2

4.2.3

4.2.4

4.2.5

4.2.6

4.2.7

“Easy Start” button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

“Home” tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

“Options” tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

“Bars” tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

“Plot” tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

“Data” tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

“FFT” tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Data acquisition quick start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

STEVAL-MKI0xxV1 Lite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.1

7.2

Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.2.1

7.2.2

7.2.3

7.2.4

Start command (DWM only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Debug command (DWM only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Stop command (DWM only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Zon and Zoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2/35

Doc ID 16617 Rev 1

UM0855

List of figures

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

Figure 11.

Figure 12.

Figure 13.

Figure 14.

Figure 15.

Figure 16.

Figure 17.

Figure 18.

Figure 19.

Figure 20.

Figure 21.

Figure 22.

Demonstration board block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Top silk screen of the STEVAL-MKI0xxV1 demonstration board . . . . . . . . . . . . . . . . . . . . . 6

Top view of the STEVAL-MKI0xxV1 demonstration board . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Software installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Notify icon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Driver installation using the device manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

USB driver installation using the hardware update wizard . . . . . . . . . . . . . . . . . . . . . . . . . 12

Virtual COM driver port assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Graphical user interface: main window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Home tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Options tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Bars tab - angular rate data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Plot tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Plot tab - zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Data tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

FFT tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

STEVAL-MKI0xxV1 Lite GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Demonstration kit correctly recognized. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Select new firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Flash erasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Flash upgrading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Schematic diagram of the STEVAL-MKI0xxV1 board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Doc ID 16617 Rev 1

5/35

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