ST MKI080V1 User Manual

MEMS demonstration board based on the LPR410AL

Features

■ Two different working modes:

– analog (AWM)
– digital (DWM)

■ RoHS compliant

Description

The STEVAL-MKI080V1 demonstration board is
designed to provide the user with a complete,
ready-to-use platform for demonstration of the
LPR410AL product family.

STEVAL-MKI080V1

analog output 2-axis gyroscope

Data brief

The STEVAL-MKI080V1 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 uses an ST7 microcontroller
which functions as a bridge between the sensor
and the PC. This makes it possible to download
the graphical user interface (GUI) from the
website or to use dedicated software routines for
customized applications.

The STEVAL-MKI080V1 demonstration board has
been designed for use in two different working
modes: analog and digital.

In analog mode (AWM) the microcontroller is
disabled and the analog outputs of the device are
available to the user on a dedicated connector.
This is the default working mode when power is
supplied through either the USB connector or the
supply connector.

In digital mode (DWM) the microcontroller is
enabled and allows the user to digitally acquire
the output signals of the device, to view them on
the PC through the dedicated GUI, and to
manage the control pins of the device.

STEVAL-MKI080V1

March 2011 Doc ID 018524 Rev 1 1/5

For further information contact your local STMicroelectronics sales office.

www.st.com

5

Schematic diagrams STEVAL-MKI080V1

1 Schematic diagrams

Figure 1. STEVAL-MKI080V1 circuit schematics (1 of 2)

JP4

ST

JP5

PD

DFU _SEL

3
2
1

3
2
1

ST_u

Vddf

PD_u

Vddf

R8
1K

R4
10K

VCC

R11
10K

R17
10K

2

ST

PD

Q1
2STR2215

2

R5
47 0R

31

Q2
SO642

31

VCC

220nFC14

1

2

3

220n FC15

4

J2

1
3
5
7
9 10

ICP

C1-

C1+

C2-

C2+

ST662ABD

2
4
6

8

U3

SHDN

GND

VOUT

VCC

C16

4. 7uF16V

iccdata
iccclk
nRE SET
iccsel

8

7

6

JP2

1

2

iccsel

5

C12
100nF

+

+

C17

4. 7uF16V

R12
10K

SW1
NReset

C7
100nF

JP7

HP

C11
100n F

HP_ u

3
2

Vddf

1

C13

+

10uF

HP

R16
10K

JP3

Current_Measure

1

2

Vdd_ dutVddf

C18

2. 2uF

2/5 Doc ID 018524 Rev 1

U4

1
2

+

3
4

1
2
3
4

LE30 CD

8

7
6
5

VCC

8

7
6
5

C19
100n F

TP2

J4

1
2

Power Supply

GAPMSMD00007