Microchip Technology CAN Bus Analyzer User manual

 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D
CAN Bus Analyzer
User’s Guide

DS50001848D-page 2  2009-2022 Microchip Technology Inc. and its subsidiaries
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CAN BUS ANALYZER
USER’S GUIDE
 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D-page 3
Table of Contents
Preface ........................................................................................................................... 5
Introduction............................................................................................................ 5
Document Layout .................................................................................................. 5
Conventions Used in this Guide ............................................................................ 6
Recommended Reading........................................................................................ 7
The Microchip Website.......................................................................................... 7
Product Change Notification Service..................................................................... 7
Customer Support ................................................................................................. 8
Document Revision History ................................................................................... 8
Chapter 1. Introduction.................................................................................................. 9
1.1 Introduction ..................................................................................................... 9
1.2 Can Bus Analyzer Kit Contents ...................................................................... 9
1.3 Overview of the CAN Bus Analyzer ................................................................ 9
1.4 CAN Bus Analyzer Hardware Features ....................................................... 10
1.5 CAN Bus Analyzer Software ........................................................................ 12
Chapter 2. Installation.................................................................................................. 13
2.1 Introduction ................................................................................................... 13
2.2 Software Installation .................................................................................... 13
2.3 Hardware Installation .................................................................................... 14
Chapter 3. Using the PC GUI....................................................................................... 17
3.1 Getting Started with a Quick Setup .............................................................. 17
3.2 Trace Feature ............................................................................................... 18
3.3 Transmit Feature .......................................................................................... 19
3.4 Hardware Setup Feature .............................................................................. 20
Appendix A. Error Messages ...................................................................................... 21
Worldwide Sales and Service .................................................................................... 24

CAN Bus Analyzer User’s Guide
DS50001848D-page 4  2009-2022 Microchip Technology Inc. and its subsidiaries
NOTES:

CAN BUS ANALYZER
USER’S GUIDE
 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D-page 5
Preface
INTRODUCTION
This chapter contains general information that will be useful to know before using the
Chapter Name. Items discussed in this chapter include:
•Document Layout
•Conventions Used in this Guide
•Recommended Reading
•The Microchip Website
•Product Change Notification Service
•Customer Support
•Document Revision History
DOCUMENT LAYOUT
This user’s guide describes how to use the Chapter Name as a development tool to
emulate and debug firmware on a target board. The topics discussed in this preface
include:
•Chapter 1. “Introduction”
•Chapter 2. “Installation”
•Chapter 3. “Using the PC GUI”
•Appendix A. “Error Messages”
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our website
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXXXXA”, where “XXXXXXXX” is the document number and “A” is the revision level
of the document.
For the most up-to-date information on development tools, see the MPLAB®IDE on-line help.
Select the Help menu, and then Topics to open a list of available on-line help files.

CAN Bus Analyzer User’s Guide
DS50001848D-page 6  2009-2022 Microchip Technology Inc. and its subsidiaries
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description Represents Examples
Arial font:
Italic characters Referenced books MPLAB®IDE User’s Guide
Emphasized text ...is the only compiler...
Initial caps A window the Output window
A dialog the Settings dialog
A menu selection select Enable Programmer
Quotes A field name in a window or
dialog
“Save project before build”
Underlined, italic text with
right angle bracket
A menu path File>Save
Bold characters A dialog button Click OK
A tab Click the Power tab
N‘Rnnnn A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
4‘b0010, 2‘hF1
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>
Courier New font:
Plain Courier New Sample source code #define START
Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’
Italic Courier New A variable argument file.o, where file can be
any valid filename
Square brackets [ ] Optional arguments mcc18 [options] file
[options]
Curly brackets and pipe
character: { | }
Choice of mutually exclusive
arguments; an OR selection
errorlevel {0|1}
Ellipses... Replaces repeated text var_name [,
var_name...]
Represents code supplied by
user
void main (void)
{ ...
}

Preface
 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D
RECOMMENDED READING
This user’s guide describes how to use the CAN Bus Analyzer on a CAN network. The
following Microchip documents are available on www.microchip.com and are recom-
mended as supplemental reference resources to understand CAN (Controller Area
Network) more thoroughly.
AN713, Controller Area Network (CAN) Basics (DS00713)
This application note describes the basics and key features of the CAN protocol.
AN228, A CAN Physical Layer Discussion (DS00228)
AN754, Understanding Microchip’s CAN Module Bit Timing (DS00754
These application notes discuss the MCP2551 CAN transceiver and how it fits within
the ISO 11898 specification. ISO 11898 specifies the physical layer to ensure
compatibility between CAN transceivers.
CAN Design Center
Visit the CAN design center on Microchip’s website (www.microchip.com/CAN) for
information on the latest product information and new application notes.
THE MICROCHIP WEBSITE
Microchip provides online support via our website at www.microchip.com. This website
is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the website contains the following
information:
•Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
•General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
•Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
PRODUCT CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notification whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.
To register, access the Microchip website at www.microchip.com, click on Product
Change Notification and follow the registration instructions.

CAN Bus Analyzer User’s Guide
DS50001848D-page 8  2009-2022 Microchip Technology Inc. and its subsidiaries
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
Customers should contact their distributor, representative or FAE for support. Local
sales offices are also available to help customers. A listing of sales offices and
locations is included in the back of this document.
Technical support is available through the website at: http://support.microchip.com.
DOCUMENT REVISION HISTORY
Revision A (July 2009)
• Initial Release of this Document.
Revision B (October 2011)
• Updated Sections 1.1, 1.3, 1.4 and 2.3.2. Updated the figures in Chapter 3, and
updated Sections 3.2, 3.8 and 3.9.
Revision C (November 2020)
• Removed Sections 3.4, 3.5, 3.6 and 3.8.
• Updated Chapter 1. “Introduction”, Section 1.5 “CAN Bus Analyzer
Software” and Section 3.2 “Trace Feature”.
• Typographical edits throughout document.
Revision C (February 2022)
• Updated Section 1.4 “CAN Bus Analyzer Hardware Features ”.
Revision D (April 2022)
• Updated Section 1.4 “CAN Bus Analyzer Hardware Features ”.
• Typographical edits throughout document.

CAN BUS ANALYZER
USER’S GUIDE
 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D-page 9
Chapter 1. Introduction
1.1 INTRODUCTION
The CAN Bus Analyzer tool is intended to be a simple-to-use, low-cost CAN Bus
monitor, which can be used to develop and debug a high-speed CAN network. The tool
features a broad range of functions, which allow it to be used across various market
segments, including automotive, marine, industrial and medical.
The CAN Bus Analyzer tool supports CAN 2.0b and ISO 11898-2 (high-speed CAN with
transmission rates of up to 1 Mbit/s). The tool can be connected to the CAN network
using the DB9 connector or through a screw terminal interface.
The CAN Bus Analyzer has the standard functionality expected in an industry tool, such
as trace and transmit windows. All of these features make it a very versatile tool,
allowing fast and simple debugging in any high-speed CAN network.
The chapter contains the following information:
•Can Bus Analyzer Kit Contents
•Overview of the CAN Bus Analyzer
•CAN Bus Analyzer Hardware Features
•CAN Bus Analyzer Software
1.2 CAN BUS ANALYZER KIT CONTENTS
1. CAN Bus Analyzer Hardware
2. CAN Bus Analyzer Software
3. CAN Bus Analyzer software CD, which includes three components:
• Firmware for the PIC18F2550 (Hex File)
• Firmware for the PIC18F2680 (Hex File)
• The CAN Bus Analyzer PC Graphical User Interface (GUI)
4. USB mini-cable to connect the CAN Bus Analyzer to the PC
1.3 OVERVIEW OF THE CAN BUS ANALYZER
The CAN Bus Analyzer provides similar features available in a high-end CAN network
analyzer tool at a fraction of the cost. The CAN Bus Analyzer tool can be used to
monitor and debug a CAN network with an easy-to-use Graphical User Interface. The
tool allows the user to view and log received and transmitted messages from the CAN
Bus. The user is also able to transmit single or periodic CAN messages onto a CAN
Bus, which is useful during development or testing of a CAN network.
Using this CAN Bus Analyzer tool has many advantages over the traditional debugging
methods embedded engineers typically rely on. For example, the tool trace window will
show the user the received and transmitted CAN messages in an easy to read format
(ID, DLC, data bytes and timestamp).

CAN Bus Analyzer User’s Guide
DS50001848D-page 10  2009-2022 Microchip Technology Inc. and its subsidiaries
1.4 CAN BUS ANALYZER HARDWARE FEATURES
The CAN Bus Analyzer hardware is a compact tool that includes the following hardware
features. Refer to Section 1.5 “CAN Bus Analyzer Software” for more information
about the software features.
FIGURE 1-1: CAN BUS ANALYZER
• Mini-USB Connector
This connector provides the CAN Bus Analyzer a communication medium to the
PC, but it can also provide a power supply if the external power supply is not
plugged into the CAN Bus Analyzer.
• 9-24 Volt Power Supply Connector
• DB9 Connector for the CAN Bus
• Termination Resistor (software controllable)
The user can turn on or off the 120 Ohm CAN Bus termination through the PC GUI.
•StatusLEDs
Displays the USB status.
•CANTrafficLEDs
Shows the actual RX CAN Bus traffic from the high-speed transceiver.
Shows the actual TX CAN Bus traffic from the high-speed transceiver.
• CAN Bus Error LED
Shows the Error Active (Green), Error Passive (Yellow), Bus Off (Red) state of the
CAN Bus Analyzer.
• Direct Access to the CANH and CANL Pins through a Screw Terminal
Allows the user access to the CAN Bus for connecting an oscilloscope without
having to modify the CAN Bus wire harness.
• Direct Access to the CAN TX and CAN RX Pins through a Screw Terminal
Allows the user access to the digital side of the CAN Bus transceiver.

Introduction

2009-2022
Microchip Technology Inc. and its subsidiaries DS50001848D
FIGURE 1-2: CAN BUS ANALYZER SCHEMATIC
CAN_RES
BUSY
Vඌඌ
Vඊඝඛ
VBB
CANRXD
CANTXD
Vcc
Vcc
VccVcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vඌඌ
Vඊඝඛ
Vඌඌ
Vcc
Vඌඌ
Triggers In/Out
PICkit 2
PICkit™ 2
CAN Bus
Not Suspend
USB Busy
CAN Rxd
CAN Txd
Trigger Status
CAN Bus Status
Ext Pwr On
CAN Bus
Note: np = not populated
5
9
4
8
3
7
2
6
1
P2P2
R16
1K
R16
1K
IOVL1
2IOVCC1 13
3-State
8
Vඔ
1
Vcc
14
U4-1
MAX3378E
U4-1
MAX3378E
C16C16
4.7 pF
R30 470R30 470
1 2
E1E1
LED5
Yel LED
LED5
Yel LED
C19C19
.01 μF
C3C3 27 pF
D2 S1GD2 S1G
D7
S1G
D7
S1G
R31 470R31 470
R33
4.7K
R33
4.7K
LED4
Yel LED
LED4
Yel LED
IN 1 OUT
3
GND
2
REG1
LM2937-5.0V
REG1
LM2937-5.0V
C2 27 pF
Y2Y2 10 MHz
Y1Y1
12 MHz
1TP1TP1
R22
470
R22
470
R32 470R32 470
LED9
Blue LED
LED9
Blue LED
D3 1N4148WSD3 1N4148WS
1TP9TP9
D1 S1GD1 S1G
R1810K R1810K
R24
56
R24
56
R19
1K
R19
1K
R17
470
1
2
3
4
5
6
J1J1
C18C18
10.0 μF
R5
np
R5
np
R1 470R1 470
D4
1N4148WS
D4
1N4148WS
R15
470
LED1Yellow LED LED1Yellow LED
TP6TP6
R10
10K
R10
10K
D8S1G D8S1G
R2 470R2 470
R13 4.7K
Q1
FDN352AP Q1 FDN352AP
Q2
FDN352AP
Q2
FDN352AP
1
TP8TP8
R8 10KR8 10K
1TP2TP2 R9 1KR9 1K
R3
100K
R3
100K
LED8
WP3VEGW
LED8
WP3VEGW
LED3
WP3VEGW
LED3
WP3VEGW
R29 470R29 470
D9
P6SMB43AT3G
D9
P6SMB43AT3G
R21
470
R21
470
1
TP7TP7
MCLR/V඘඘/RE3
1
OSC1/CLKIN/RA7
9
OSC2/CLKOUT/RA6
10
GND
8
GND
19 Vඌඌ 20
RA0/AN0
2
RA1/AN1
3
RA2/AN2/Vකඍඎ-
4
RA3/AN3/Vකඍඎ+
5
RA4/T0CLI
6
RA5/AN4/SS/LVDIN
7
RB0/INT0/AN10 21
RB1/INT1/AN8 22
RB2/CANTX 23
RB3/CANRX 24
RB4/AN9 25
RB5 26
RB6 27
RB7 28
RC0/T1OSO/T13CKI 11
RC1/T1OSI 12
RC2/CCP1 13
RC3/SCK/SCL 14
RC4/SDI/SDA 15
RC5/SDO 16
RC6/TX/CK 17
RC7/RX/DT 18
U2
PIC18F2680
U2
PIC18F2680
MCLR/V඘඘/RE3 1
OSC1/CLKIN 9
OSC2/CLKOUT/RA6 10
GND
8
GND
19
Vඌඌ 20
RA0/AN0 2
RA1/AN1 3
RA2/AN2/Vකඍඎ-/CVකඍඎ 4
RA3/AN3/Vකඍඎ+5
RA4/T0CLI/C1OUT/RCV 6
RA5/AN4/SS/LVDINC2OUT 7
RB0/INT0/AN12/FLT0/SDI/SDA
21
RB1/INT1/AN10/SCK/SCL
22
RB2/AN8/INT2/VMO
23
RB3/AN9/CCP2/VPO
24
RB4/AN11/KBI0
25
RB5/KBI1/PGM
26
RB6KBI2/PGC
27
RB7/KBI3/PGD
28
RC0/T1OSO/T13CKI
11
RC1/T1OSI/CCP2/UOE
12
RC2/CCP1
13
Vඝඛඊ
14
RC4/D-/VM
15
RC5/D+/VP
16
RC6/TX/CK
17
RC7/RX/DT/SDO
18
U1
PIC18F2550
U1
PIC18F2550
R6 0R6 0
R20 1KR20 1K
C8C8
0.1 μF
R28
100K
R28
100K
R27
33K
R27
33K
D5 NSR0620P2T5GD5 NSR0620P2T5G
C4
0.1 μF
LED7
WP3VEGW
LED7
WP3VEGW
R7 0R7 0
R11
0
R11
0
2
3
1
P3P3
R12 20KR12 20K
Q3
FDN352AP
Q3
FDN352AP
4.7pF
C15
4.7pF
C17
.01 μF
IOVL2
3IOVCC2 12
U5-2U5-2
1
2
3
4
5
6
J2J2
C1C1
0.1 μF
S1S1
LED6
Purple LED
LED6
Purple LED
C14
4.7 pF
C13
tbd
C13
tbd
C7C7
470 nF
R23
np
R23
np
1TP5TP51
2
3
4
J3J3
LED2Green LED LED2Green LED
R4
1K
R4
1K
C10 22 pF
TP4TP4
Vඊඝඛ 1
D- 2
D+ 3
nc 4
GND 5
P1
USB Mini-B
P1
USB Mini-B
1
2
3
4
5
6
JP1JP1
C5C5
0.1 μF
R26
0
C9 0.1 μF
TP3TP3
C11 22 pF
CANH 7
GND
2
CANL 6
Vcc
3
TXD
1RXD
4
REF 5
RS 8
U3
MCP2551
U3
MCP2551
C20C20
10 μF
S2S2
2
3
1
D6
NUP2105LD6 NUP2105L
5656
C12C12
0.1 μF
C6
0.1 μF
1TP10TP10
R14 100KR14 100K
R25

CAN Bus Analyzer User’s Guide
DS50001848D-page 12  2009-2022 Microchip Technology Inc. and its subsidiaries
1.5 CAN BUS ANALYZER SOFTWARE
The CAN Bus Analyzer comes with two firmware Hex files and PC software which
provide the user with a graphical interface to configure the tool, and analyze a CAN
network. It has the following software tool features:
1. Trace: Monitor the CAN Bus traffic.
2. Transmit: Transmit single-shot, periodic or periodic messages with a limited
repeat onto the CAN Bus.
3. Log File Setup: Save CAN Bus traffic.
4. Hardware Setup: Configure the CAN Bus Analyzer for the CAN network.

CAN BUS ANALYZER
USER’S GUIDE
 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D-page 13
Chapter 2. Installation
2.1 INTRODUCTION
The following chapter describes the procedures for installing the CAN Bus Analyzer
hardware and software.
This chapter contains the following information:
•Software Installation
•Hardware Installation
2.2 SOFTWARE INSTALLATION
2.2.1 Installing the GUI
Install .NET Framework Version 3.5 before installing the CAN Bus Analyzer.
1. Run “CANAnalyzer_verXYZ.exe”, where “XYZ” is the version number of the
software. By default, this will install the files to: C:\Program Files\
Microchip Technology Inc\CANAnalyzer_verXYZ.
2. Run the setup.exe from folder: C:\Program Files\Microchip
Technology Inc\CANAnalyzer_verXYZ\GUI.
3. The setup will create a shortcut in the Programs menu under “Microchip
Technology Inc” as Microchip CAN Tool ver XYZ.
4. If the CAN Bus Analyzer PC software is being upgraded to a newer version, the
firmware should be updated to match the revision level of the PC software. When
updating the firmware, ensure that the Hex files are programmed into their
respective PIC18F microcontrollers on the CAN Bus Analyzer hardware.
2.2.2 Upgrading the Firmware
If upgrading the firmware in the CAN Bus Analyzer, the user will need to import the Hex
files into MBLAB®IDE and program the PIC®MCUs. When programming the
PIC18F2680, the user may power the CAN Bus Analyzer by an external power supply
or by the mini-USB cable. When programming the PIC18F550, the user needs to power
the CAN Bus Analyzer by an external power supply. Additionally, when programming
Hex files into PIC MCUs, it is recommended to check the firmware version from the
GUI. This can be done by clicking on the Help>About menu option.

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2.3 HARDWARE INSTALLATION
2.3.1 System Requirements
•Windows
®XP
• .NET Framework Version 3.5
• USB Serial Port
2.3.2 Power Requirements
• A power supply (9 to 24-Volt) is needed when operating without the PC and when
updating firmware in the USB PIC MCU
• The CAN Bus Analyzer tool can also be powered using the USB port
2.3.3 Cable Requirements
• Mini-USB cable – for communicating with the PC software
• The CAN Bus Analyzer tool can be connected to a CAN network using the
following:
- Via the DB9 connector
- Via screw-in terminals
2.3.4 Connecting the CAN Bus Analyzer to the PC and CAN Bus
1. Connect the CAN Bus Analyzer via the USB connector to the PC. You will be
prompted to install the USB drivers for the tool. The drivers can be found in this
location:
C:\Program Files\Microchip Technology Inc\CANAnalyzer_verXYZ
2. Connect the tool to the CAN network using the DB9 connector or the screw-in
terminals. Please refer to Figure 2-1 and Figure 2-2 for the DB9 connector, and
the screw terminals for connecting the network to the tool.
TABLE 2-1: 9-PIN (MALE) D-SUB CAN BUS PINOUT
Pin Number Signal Name Signal Description
1 No Connect N/A
2 CAN_L Dominant Low
3 GND Ground
4 No Connect N/A
5 No Connect N/A
6 GND Ground
7 CAN_H Dominant High
8 No Connect N/A
9 No Connect N/A

Installation
 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D
FIGURE 2-1: PINOUT FOR THE DB9 CONNECTOR
FIGURE 2-2: PINOUT FOR THE SCREW-IN TERMINALS
TABLE 2-2: 6-PIN SCREW CONNECTOR PINOUT
Pin Number Signal Names Signal Description
1Vcc PIC
®MCU Power Supply
2 CAN_L Dominant Low
3 CAN_H Dominant High
4 RXD CAN Digital Signal from Transceiver
5 TXD CAN Digital Signal from PIC18F2680
6 GND Ground
JP1
VCC
CANL
CANH
RXD
TXD
1
2
3
4
5
6

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NOTES:

CAN BUS ANALYZER
USER’S GUIDE
 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D-page 17
Chapter 3. Using the PC GUI
Once the hardware is connected and the software is installed, open the PC GUI using
the shortcut in the Programs Menu under “Microchip Technology Inc”, labeled as
‘Microchip CAN Tool ver XYZ’. Figure 3-1 is a screen shot of the default view for the
CAN Bus Analyzer.
FIGURE 3-1: CAN BUS ANALYZER DEFAULT VIEW
3.1 GETTING STARTED WITH A QUICK SETUP
The following are setup steps to quickly start transmitting and receiving on the CAN
Bus. For more details, refer to the individual sections for the different PC GUI features.
1. Connect the CAN Bus Analyzer to the PC with the mini-USB cable.
2. Open the CAN Bus Analyzer PC GUI.
3. Open the Hardware Setup and select the CAN Bus bit rate on the CAN Bus.
4. Connect the CAN Bus Analyzer to the CAN Bus.
5. Open the Trace window.
6. Open the Transmit window.

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3.2 TRACE FEATURE
There are two types of Trace windows: Fixed and Rolling. To activate either Trace
window, select the option from the main Tools menu.
FIGURE 3-2: FIXED TRACE WINDOW
FIGURE 3-3: ROLLING TRACE WINDOW
The Trace window displays the CAN Bus traffic in a readable form. This window will list
the ID (Extended is signified with a preceding ‘x’ or Standard), DLC, DATA Bytes, the
Timestamp and the time difference from the last CAN Bus message on the bus. The
Rolling Trace window will show the CAN messages sequentially as they appear on the
CAN Bus. The time delta between messages will be based on the last received
message, regardless of THE CAN ID.
The Fixed Trace window will show the CAN messages in a fixed position on the Trace
window. The message will still be updated, but the time delta between messages will
be based on the previous message with the same CAN ID.

Using the PC GUI
 2009-2022 Microchip Technology Inc. and its subsidiaries DS50001848D
3.3 TRANSMIT FEATURE
To activate the Transmit window, select “TRANSMIT” from the main Tools menu.
FIGURE 3-4: TRANSMIT WINDOW
The Transmit window allows the user to interact with other nodes on the CAN Bus by
transmitting messages. The user is able to enter any ID (Extended or Standard), DLC
or DATA bytes combination for single message transmittal. The Transmit window also
allows the user to transmit a maximum of nine separate and unique messages, either
periodically, or periodically with a limited “Repeat” mode. When using the limited
Repeat mode, the message will be sent out at the periodic rate for a number of “repeat”
times.
3.3.1 Steps to Transmit a Single-Shot Message
1. Populate the CAN message fields, which include the ID, DLC and DATA.
2. Populate the Periodic and Repeat fields with “0”.
3. Click on the Send button for that row.
3.3.2 Steps to Transmit a Periodic Message
1. Populate the CAN message fields, which include the ID, DLC and DATA.
2. Populate the Periodic field (50 ms to 5000 ms).
3. Populate the Repeat field with “0” (which translates to “repeat forever”).
4. Click on the Send button for that row.
3.3.3 Steps to Transmit a Periodic Message with Limited Repeats
1. Populate the CAN message fields, which include the ID, DLC and DATA.
2. Populate the Periodic field (50 ms to 5000 ms).
3. Populate the Repeat field (with a value from 1 to 10).
4. Click on the Send button for that row.

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3.4 HARDWARE SETUP FEATURE
To activate the Hardware Setup window, select “HARDWARE SETUP” from the main
Tools menu.
FIGURE 3-5: HARDWARE SETUP WINDOW
The Hardware Setup window allows the user to set up the CAN Bus Analyzer for com-
munication on the CAN Bus. This feature also gives the user the ability to quickly test
the hardware on the CAN Bus Analyzer.
To set up the tool to communicate on the CAN Bus:
1. Select the CAN bit rate from the drop-down combo box.
2. Click the Set button. Confirm that the bit rate has changed by viewing the bit rate
setting on the bottom of the main CAN Bus Analyzer window.
3. If the CAN Bus needs the termination resistor active, then turn it on by clicking
the Turn On button for the Bus Termination.
Test the CAN Bus Analyzer hardware:
1. Ensure that the CAN Bus Analyzer is connected. You can confirm this by viewing
the tool connection status on the status strip on the bottom of the main CAN Bus
Analyzer window.
2. To confirm that the communication is working between the USB PIC®MCU and
the CAN PIC MCU, click on the Help->About main menu option to view the
version numbers of the firmware loaded into each PIC MCU.