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Protobus mag and canbus tdm toolset differences, Serial data debug solutions 72 – Teledyne LeCroy Serial Data Debug Solutions User Manual

Page 72

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Serial Data Debug Solutions

72

919586 RevA

The # Bits can be any value from 1 to 64. If you enter a value less than 1, it defaults to 1. If you enter a
value more than 64, it defaults to 64.

Sign Type - Choose between signed and unsigned integer format.

Data Value and Data Value To - The Data Value is set in Binary or Hexadecimal format. For Hexadecimal,
if desired, you can precede the ID value with 0x, but this is not necessary. Be sure to enter a Data Value
that matches the DLC Value.

When using an in range or out of range Data Condition (previous), specify a Data Value To value for
triggering.

PROTObus MAG and CANbus TDM Toolset Differences

PROTObus MAG and CANbus TDM both provide powerful tools for your specific protocol measurement uses.
These tools allow you to quickly and easily accumulate statistical information on a wide variety of events while
using the graphical display tools to visualize the data on your oscilloscope screen. These sophisticated
measurement and graphical display tools are the missing link between standard oscilloscope and protocol
analyzer capability. PROTObus MAG and CANbus TDM tools provide the capability to trigger on defined events,
observe actions/reactions, measure timing among MSG or CAN and Analog signals while viewing results directly
on the display, all with no complicated data exporting. Data on tens of thousands of events can be automatically
and quickly gathered and analyzed in a fraction of the time it takes to manually perform the same testing.

However, there are a few differences between the two products as follows:

PROTO

BUS

MAG

A

DVANTAGES

PROTObus MAG provides Gating controls over your measurements.

PROTObus MAG provides Holdoff (event) controls over your measurements as they apply to MSG-MSG,
MSG-Analog, and Analog-MSG.

PROTObus MAG provides a Message to Value measurement parameter allowing you to apply your own
symbolic lookup file.

PLEASE NOTE THE FOLLOWING:

The Message to Value parameter only interprets Intel Format (not Motorola as CANbus TDM does).

PROTObus MAG does not accept .dbc lookup files.

CAN

BUS

TDM

A

DVANTAGES

CANbus TDM interprets Motorola format when using the CAN2Value measurement parameter and
applying your own symbolic lookup file.

CANbus TDM accepts .dbc lookup files.

CANbus TDM provides FRAME Type support.

Measurement parameter tools for PROTObus MAG and CANbus TDM provide similar functionality, but currently
have different names for each respective parameter set. PROTObus MAG parameters are more generically
named as covered in Accessing and Using The PROTObus MAG Supported Protocol Toolset (on page 23), while
CANbus TDM parameters have CAN-specific names as follows:

Measure Timing Δ Between CAN and Analog Signals and Accumulate Statistics - Measure the time
difference between an analog signal and CAN signal generated in response to it (or vice-versa). View the
mean, minimum, and maximum timing values, the number of samples, and the standard deviation of the
measurements.

Measure Timing Δ Between Two CAN Messages and Accumulate Statistics - Same as previous, but with
two CAN signals.

Measure Timing Δ From the Trigger Point to a CAN Message - Same as previous, but the trigger point can
be anything - a CAN message, an Analog signal, a Pattern of signals, a Dropout condition, etc.