Measurement and Calibration Software for Automotive Electronic Control Units (ECUs)
channels. For most cases, it is sufficient for the toolkit to handle the
underlying CCP and XCP communication. Nevertheless, the toolkit
offers direct access to the low-level CCP and XCP commands if you
need a nonstandard timing behavior or independent user-defined
command sequence.
CCP and XCP Functions
The ECU Measurement and Calibration Toolkit channel functions do
not expose the method used for ECU memory access. However, some
applications may need specific CCP or XCP command sequences or
custom designed commands that are not included in the CCP or XCP
protocols. For these applications, the ECU Measurement and Calibration
Toolkit CCP functions and XCP functions provide access to the ECU
information at a very low level.
Channel Functions
With the toolkit channel functions, you have a number of ways to access
memory content in an ECU. The starting point is always the creation of
a database task, which is the link to a valid ASAM MCD 2MC database
file (.A2L file), and the selection of the protocol (CCP or XCP). With the
database task reference, it is possible to create an ECU task reference,
which links to the selected ECU. Depending on the application scenario,
you can use the ECU task reference to:
• Create a measurement task to measure ECU internal data
continuously or on demand
• Directly read/write 0D to 2D characteristics
• Read/write single measurement values on demand
XCP-Spy Utility
XCP-Spy is an application that monitors, records, and displays
XCP communication commands and parameters called by your ECU
Measurement and Calibration Toolkit application using the XCP protocol.
Use the included XCP-Spy to analyze your application’s XCP communication
and to verify that the communication with your ECU slave is correct.
NI ECU Measurement and Calibration Toolkit
Licensing Information
National Instruments offers three ECU Measurement and Calibration
Toolkit licenses: ECU Measurement and Calibration Toolkit Development
License for Windows, ECU Measurement and Calibration Toolkit
Deployment License for Windows, and ECU Measurement and
Calibration Toolkit Deployment License for LabVIEW Real-Time.
ECU Measurements
An ECU measurement, called
ECU Data Acquisition (DAQ)
in the CCP
and XCP specifications, is a definition of specific procedures and CAN
messages sent from the slave device (ECU) to the master device for
fast data acquisition.
The XCP protocol offers synchronous data transfer in both directions,
from Master to Slave (data acquisition list) and from Slave to Master
(STIM list). With XCP, you can have several simultaneously active data
acquisition lists. The sampling and transfer of each data acquisition list
is triggered by individual events in the slave. To reduce the transfer rate,
you can apply a transfer rate prescaler to the data acquisition lists.
ECU Measurement and Calibration Toolkit
Development License for Windows
With the ECU Measurement and Calibration Toolkit Development License
for Windows, you can install the toolkit and develop and run applications
on a single Windows machine.
ECU Characteristics
An ECU characteristic represents an ECU internal memory range with
defined access methods through the CCP protocol. The memory range
of a single characteristic can be structured in three ways:
• 0D – a single value
• 1D – a curve of values
• 2D – a field of values
A characteristic can be defined as read only or read and write accessible.
ECU Measurement and Calibration Toolkit
Deployment Licenses
If you are redistributing the ECU Measurement and Calibration Toolkit or any
of its components, you need to purchase one of the two deployment licenses
from National Instruments for each target machine – the Deployment
License for Windows and the Deployment License for LabVIEW Real-Time.
Ordering Information
NI ECU Measurement and Calibration Toolkit......................779349-01
Deployment License for LabVIEW Real-Time ..................779476-01
Deployment License for Windows....................................779477-01
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information, call 800 813 3693 (U.S.) or go to
ni.com/can.
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or
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