ELM325P データシートの表示（PDF） - Elm Electronics

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ELM325P

J1708 Interpreter

Elm Electronics 

ELM325

Contents

Electrical Information

Copyright and Disclaimer............................................................. 2

Pin Descriptions........................................................................... 3

Absolute Maximum Ratings......................................................... 4

Electrical Characteristics..............................................................4

Using the ELM325

Overview...................................................................................... 5

Communicating with the ELM325................................................ 5

AT Commands............................................................................. 7

AT Command Summary...............................................................7

AT Command Descriptions.......................................................... 8

Sending AT Commands............................................................. 11

J1587 Commands...................................................................... 12

Listening to a Vehicle................................................................. 13

Receive Filtering........................................................................ 14

Getting Trouble Codes............................................................... 15

Making Requests....................................................................... 16

Automatic Receive Filters.......................................................... 17

Setting the MID.......................................................................... 18

Multiline Responses................................................................... 18

Setting the Timeout.................................................................... 20

About J1922............................................................................... 21

Restoring Order..........................................................................21

Design Discussions

Microprocessor Interfaces..........................................................22

Example Applications.................................................................23

Tester Connectors......................................................................27

Misc

Error Messages and Alerts.........................................................28

Outline Diagrams....................................................................... 29

Ordering Information.................................................................. 29

Index.......................................................................................... 30

All rights reserved. Copyright 2012 by Elm Electronics Inc.

Every effort is made to verify the accuracy of information provided in this document, but no representation or warranty can be

given and no liability assumed by Elm Electronics with respect to the accuracy and/or use of any products or information

described in this document. Elm Electronics will not be responsible for any patent infringements arising from the use of these

products or information, and does not authorize or warrant the use of any Elm Electronics product in life support devices and/or

systems. Elm Electronics reserves the right to make changes to the device(s) described in this document in order to improve

reliability, function, or design.

ELM325DSA

Elm Electronics – Circuits for the Hobbyist

www.elmelectronics.com

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