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Evaluation Board User Guide

UG-012

One

 

Technology

 

Way

 

 

P.O.

 

Box

 

9106

 

 

Norwood,

 

MA

 

02062-9106,

 

U.S.A.

 

 

Tel:

 

781.329.4700

 

 

Fax:

 

781.461.3113

 

 

www.analog.com 

 

i

MEMS ADXL346 Inertial Sensor Evaluation System 

 

 

 
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT  
WARNING AND LEGAL TERMS AND CONDITIONS.

 

Rev. 0 | Page 1 of 12 

FEATURES 

Ultralow power 

ADXL346

 accelerometer  

Inertial sensor evaluation board 
Inertial sensor-specific satellite for evaluation 
Standard USB cable for power and communications 
PC-based graphical user interface (GUI) 
Separates DUT from controller for accurate environmental 

testing 

 

 

08

25

8-

00

1

 

Figure 1. Inertial Sensor Evaluation System 

 

 

GENERAL DESCRIPTION 

The 

i

MEMS® ADXL346 inertial sensor evaluation system  

is an easy-to-use evaluation tool targeting bench or desktop 
characterization of Analog Devices, Inc., inertial sensor 
products. The system consists of the inertial sensor evaluation 
board (ISEB), or main board, and a satellite board for any 
Analog Devices inertial sensor product. The ISEB connects 
directly to a PC via its USB, where the USB connection provides 
both power and communications to the board. The ISEB then 
connects to the satellite board through a ribbon cable. This 
cable allows the satellite to be easily manipulated for testing or 
for being separately placed into an environmental chamber for 
temperature or humidity testing. Separating the boards 
mitigates corruption of data due to the temperature and 
humidity effects of other components. 

The ISEB is a universal main board and is intended to be used 
with various satellites of Analog Devices inertial sensors, 
including analog and digital accelerometers, as well as gyroscopes. 
The different products are evaluated by means of separate GUIs 
that are customized for performance and characterization 
measurements relevant to the inertial sensor being evaluated.  

The EVAL-ADXL346Z-M system contains the ISEB and the 
EVAL-ADXL346Z-S satellite. Also included is a USB A to Mini-
B cable to connect the ISEB to a PC and an 18-inch, 20-pin 
ribbon cable to connect the ISEB to the satellite. A CD is also 
included with the necessary drivers and executables to use the 
system and to quickly begin evaluating the ADXL346. 

 

Summary of Contents for UG-012

Page 1: ... connects directly to a PC via its USB where the USB connection provides both power and communications to the board The ISEB then connects to the satellite board through a ribbon cable This cable allows the satellite to be easily manipulated for testing or for being separately placed into an environmental chamber for temperature or humidity testing Separating the boards mitigates corruption of dat...

Page 2: ...System Setup 3 Software Configuration 3 Hardware Configuration 4 Updating Repairing the ISEB Firmware 5 Inertial Sensor Evaluation System Graphical User Interface 6 Configuration Tab 6 Real Time Measurement Tab 7 Interrupt Configuration Tab 8 Power Consumption Tab 9 Temperature Tab 10 Header Pinout 11 REVISION HISTORY 5 10 Revision 0 Initial Revision ...

Page 3: ...see Figure 2 08258 002 Figure 2 Found New Hardware Prompt 3 Select Don t search I will choose the driver to install see Figure 3 and select ADI Inertial Sensor Evaluation System from the model list see Figure 4 The ISEB should automatically be detected in the Device Manager as the ADI Inertial Sensor Evaluation System under the Ports COM LPT selection It is recommended to open the Device Manager t...

Page 4: ... ribbon cable 5 Verify that the jumpers located in the center of the ADXL346 satellite are configured as shown in Figure 5 CONNECTOR ADXL346 JUMPER POSITIONS 08258 005 Figure 5 Correct Jumper Positions for the ADXL346 Satellite 6 Place the ADXL346 ultralow power accelerometer into the socket on the satellite board The Socket Pin 1 Indicator is located inside the socket close to the hinge as shown ...

Page 5: ...hen the COM port is selected click OK to accept the changes and go back to the main screen 08258 108 Figure 8 Selecting the Correct COM Port for the Downloader When the ISEB is connected the correct firmware is selected and the downloader is fully configured follow these steps to flash the firmware 1 Click Start as shown in Figure 7 to initiate the flashing process After clicking Start the two but...

Page 6: ... ADI Inertial Sensor Evaluation System under the Ports COM LPT selection 08258 007 Figure 10 Selecting the Correct COM Port for the ISEB After selecting the COM port click on Connect to connect to the ISEB This causes the indicator under Vs Set to light up and update the Current Vs V value verifying that the board is connected see Figure 11 08258 111 Figure 11 ISEB Connected to PC Clicking the rou...

Page 7: ...ibration and offset adjustment On the Real Time Measurement tab these registers are easily accessible for programming offset values This can be done in the Offset Adjustment box by typing a value into the text box below the corresponding axis knob or by clicking and holding the knob and rotating it on the screen with the mouse cursor The value entered is directly written into the offset registers ...

Page 8: ...more details refer to the ADXL346 data sheet Clicking an indicator causes it to toggle values A lit indicator causes a value of 1 to be written to that bit and an unlit indicator causes a value of 0 to be written to that bit In the Interrupt Configuration box you can select the interrupts to enable For purposes of the GUI all enabled interrupts are mapped to the INT2 pin Selecting the checkbox nex...

Page 9: ...n indicator lights up signifying that a controller or microprocessor is actively pulling data from the part or processing it In addition to more power savings from the ADXL346 more power can be saved by powering down the microprocessor during periods of inactivity and using the ADXL346 activity interrupt to wake the microprocessor up during periods of activity The ACT INACT_CTL indicators can be u...

Page 10: ...tab shown in Figure 15 allows a maximum number of points to be set and at what rate data is acquired The testing can be stopped before reaching the maximum number of points The data rate for the accelerometer can also be set to ensure that the testing is performed under conditions most like those that the part would be configured for in a system Figure 15 Temperature Tab The data in the top graph ...

Page 11: ... of 12 HEADER PINOUT 1 S1 2 3 S2 4 5 S3 6 7 S4 8 CS2 9 VS2 10 VS1 11 12 ST1 13 ST2 14 SCL1 15 SDA1 16 CLK 17 MOSI 18 MISO 19 CS3 20 CS4 P1 3 3V CS2 VS2 VS1 ST1 ST2 SCL1 SDA1 CLK MOSI MISO CS3 CS4 AGND GND 08258 013 Figure 16 ISEB 20 Pin Header Pinout ...

Page 12: ...er party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTIONS Customer may not disassemble decompile or reverse engineer chips on the Evaluation Board Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Bo...

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