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PMODACL2

更新时间: 2024-11-25 12:27:47
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PmodACL2™ Diigiitall Accellerometer Reference Manuall

PMODACL2 数据手册

  
PmodACL2™ Digital Accelerometer  
Reference Manual  
Revision: November 9, 2012  
1300 Henley Court | Pullman, WA 99163  
(509) 334 6306 Voice and Fax  
Note: This document applies to REV A of the board  
Overview  
The PmodACL2 is a 3-axis digital  
accelerometer module powered by the Analog  
Devices ADXL362.  
Features include:  
user-selectable resolution  
single or double-tap detection  
activity and inactivity monitoring  
free fall detection  
SPI Communication  
Functional Description  
Connector J1 – SPI Communications  
Pin Signal Description  
The PmodACL2 uses a standard 12-pin  
connector and can communicate via SPI.  
While the ADXL362 is in Measurement Mode,  
it continuously measures and stores  
acceleration data in the X-data, Y-data, and Z-  
data registers.  
1
~SS  
Slave select  
2
MOSI  
MISO  
SCLK  
GND  
VCC  
INT2  
INT1  
NC  
SPI master out slave in data  
SPI master in slave out data  
Serial clock  
3
4
5
Power supply ground  
Power supply (3.3V)  
Interrupt two  
6
7
Do not exceed 3.3V on the VCC power supply.  
Exceeding this limit could permanently damage  
the ADXL362.  
8
Interrupt one  
Not connected  
9
10  
11  
12  
NC  
GND  
VCC  
Not connected  
Power supply ground  
Power supply (3.3V)  
Interface  
All communications with the device must  
specify a register address and a flag that  
indicate whether the communication is a read  
or a write. Actual data transfer always follows  
the register address and communication flag.  
Table 1. Interface Connector Signal  
Description  
The SPI standard uses four signal lines. These  
are slave select (~SS), master out slave in  
(MOSI), master in slave out (MISO), and serial  
clock (SCLK). These four signal lines map to  
the following signals on the ADXL345: ~SS  
corresponds to the chip select signal (~CS),  
MOSI corresponds to serial data input (SDI),  
MISO corresponds to serial data output (SDO),  
and SCK corresponds to the serial clock  
Perform device configuration by writing to the  
control registers within the accelerometer.  
Access accelerometer data by reading the  
device registers.  
You may find a full list of registers, their  
functionality, and communication specifications  
in the ADXL362 datasheet available at:  
www.analog.com.  
(SCLK). (See Table 1 for signal descriptions.)  
Doc: 502-255  
page 1 of 1  
Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.  

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