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F
Features, 1
Figure 9, 80
Filter and Mask, CAN, 47
Flow Control Messages, Altering, 60
FMS Standard, 58
Frequency Matching, CAN, 62
H
Headers, setting them, 39-41
Higher RS232 Baud Rates, 50-51
History, Version, 90-91
I
Initiation, Bus, 33
Inputs, unused, 6
Interface, Microprocessor, 76-77
Interpreting Trouble Codes, 34
J
J1939,
FMS Standard, 58
Messages, 53-54
NMEA 2000, 59
Number of responses, 56
Using, 55-58
K
KeepAlive (Wakeup) Messages, 59
L
Low Power Operation,
Description, 64-67
Modifications, 84-86
M
Mask and Filter, CAN, 47
Maximum CAN Data Rates, 74
Maximum Ratings, Absolute, 6
Messages and Filtering, CAN, 46
Messages, Error, 87-89
Message Formats, OBD, 38-39
Message Types, CAN, 44
Microprocessor Interfaces, 76-77
Modifications for Low Power, 84-86
Monitoring the Bus, 48
Multiline Responses, 42-43
Multiple PID Requests, 45
Index
A
Absolute Maximum Ratings, 6
Activity Monitor, 64
Altering Flow Control Messages, 60
Applications, Example, 78-83
AT Commands, 10
AT Command
Descriptions, 12-28
Summary, 10-12
Alerts, Error Messages and, 87-89
B
Battery Voltage, Reading the, 29
Baud Rates, Using Higher RS232, 50-51
Block Diagram, 1
Bus FMS Standard, 58
Bus Initiation, 33
C
CAN Data Rates, Maximum, 74
CAN Extended Addresses, Using, 61
CAN Frequency Matching, 62
CAN Message Types, 46
CAN Receive Filtering, 46
Codes, Trouble,
Interpreting, 34
Resetting, 35
Commands, AT
Descriptions,12-28
Summary, 10-12
Commands, OBD, 30
Communicating with the the ELM327, 8-9
CRA, the Command, 46
D
Data Byte, Saving, 63
Description and Features, 1
E
Electrical Characteristics, 7
Error Messages, 87-89
Example Applications
Basic, 78-80
Connecting to 3.3V, 83
Figure 9, 80
Low Power, 84
USB, 80, 82
Extended Addresses, CAN, 61
93 of 94
ELM327
ELM327DSJ Elm Electronics – Circuits for the Hobbyist
www.elmelectronics.com
93


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