LIPOWSKY INDUSTRIE-ELEKTRONIK Baby-LIN-RM-III Digital I-O Interface User Guide

LIPOWSKY INDUSTRIE-ELEKTRONIK Baby-LIN-RM-III Digital I-O Interface

Introduction

This getting started guide will show you how to setup the Baby-LIN-RM-III to communicate with or monitor the LIN-Bus. Simply follow the next steps.

Advice

This guide is made for new Baby-LIN-RM-III users. If you already have experience with Baby-LIN products or you are an advanced LIN-Bus user then this guide probably is not suited for you. This guide assumes you are using a Microsoft Windows operating system. If you use a Linux operating system please contact us to receive software for your distribution: “Support information”

For this purpose, we will introduce the following components to you:

• LDF
• Signal description
• Specification Diagnosis Services

From this information, the SessionDescriptionFile (SDF) can be created. The SDF is the linchpin in LINWorks-based applications. The following graphic shows the typical workflow of a LIN-based application with our \Productname.

This diagram shows how the individual LINWorks software applications are linked to each other.

Getting started

Introduction
This getting started guide will show you how to create your Lin application using the information from the LDF and the signal descriptions. In the following, you will learn how to create an LDF and integrate it into the SDF. Furthermore, the Unifeid Diagnostic Services will be introduced. After you have successfully created the SDF, the Baby-LIN-RM-III can be operated in standalone mode, LIN bus data can be logged, or macros can be defined for autostart.

Advice

This guide assumes you are using a Microsoft Windows operating system.

Installation
Before you can start using the Baby-LIN-RM-III you have to install several components of the LINWorks software. If you have not already downloaded the LINWorks software, please download it now from our website under following link:www.lipowsky.de The following components are required for this getting started guide:

• Baby-LIN driver
• SessionConf
• SimpleMenu
• LDFEdit

Session Description File (SDF)

How to create a LIN application

1. Requirement A LIN node (slave) and a suitable LDF file are available. An application is to be implemented in which a simulated LIN master allows the node to be operated in a certain way.
2. Requirement However, the information in the LDF is usually not sufficient. The LDF describes the access and interpre-tation of the signals, but the LDF does not describe the functional logic behind these signals. Therefore you need an additional signal description which describes the functional logic of the signals.
3. Requirement If the task also requires diagnostic communication, a specification of the diagnostic services supported by the nodes is also required. In the LDF, only the frames with the respective data bytes are defined, but not their meaning.

These requirements can then be defined and edited together in a Session Description file (SDF).
Introduction

The Session Description file (SDF) contains the bus simulation based on the LDF data. The logic of the individual frames and signals can be programmed by macros and events. In addition to the LDF LIN schedule, further diagnostic services can be implemented in the SDF via protocols. This makes the SDF the central working point of all LINWorks applications.

Create a SDF
The SessionConf software application is used to create and edit the SDF. For this purpose, an existing LDF is imported.

Common Setup
Emulation

Select Emulation in the navigation menu on the left. Here you can select which nodes you want to be simulated by the Baby-LIN-RM-III. If you only want to monitor the LIN-Bus, select nothing.

GUI-Elements

Select GUI-Elements in the navigation menu on the left. Here you can add signals you want to monitor.

Advice

There are other ways to monitor frames and signals, but this is a good and configurable starting point.

Virtual signals

Virtual signals can store values just like bus signals, but they do not appear on the bus. They can be used for many different tasks like:

• Temporary values, like counters
• Store constants

The size of a virtual signal can be set to 1…64 bits. important for use in the protocol feature. Each signal has a default value that is set when the SDF is loaded.

System signals
System signals are virtual signals with reserved names. When a system signal is applied, a virtual signal is created at the same time and linked to a specific behaviour.
In this way, you can access timer, input and output resources and system information.

Advice

For more information and a list of all available system signals, please check the System Signal Wizard in SessionConf.

Macros
Macros are used to combine multiple operations into a sequence. Macros can be started by events or, can also be called from other macros in the sense of a Goto or Gosub. The DLL API calls a macro with the macro_execute command.

All Macro Commands can use signals from the LDF and signals from the Virtual Signal section like the system signals. Another important function of the macros is to control the bus. The bus can be started and stopped via macro. Furthermore, the schedule can be selected and the status of the bus can be checked with the help of the system signals.

Each macro always provides 13 local signals: _LocalVariable1, _LocalVariable2, …, _LocalVarable10, _Failure, _ResultLastMacroCommand, _Return The last 3 provide a mechanism to return values to a callcontext _Return, _Failure) or to check the result of a previous macro command. The signals _LocalVariableX can be used e.g. as temporary variables in a macro.

A macro can receive up to 10 parameters when called. In the macro definition, you can give these parameters names, which are then displayed on the left in the menu tree in brackets after the macro name. The parameters end up in the signals _LocalVariable1…10 of the called. If no parameters or less than 10 parameters are are passed, the remaining _LocalVariableX signals receive the value 0.

Events

The two push buttons of the Baby-LIN-RM-III makes it possible to link the keystroke with the execution of a macro by using events. This could be used to start or stop the bus communication, completely independently of the SimpleMenu.

Various events can be configured for all Baby-LIN devices under the Events tab in SessionConf. For the Baby-LIN-RM-III, the input events are additionally available for key presses. In addition to the event, in the 2nd step you can select an action that is to be executed when the button is pressed. In our example, the BusStart macro is executed and LIN bus communication is started. With this method, events and actions can be defined for each individual key.

Example SDF

You can download the example SDF under the section “08 | Examples SDF s” under the following link: GettingStarted_Example.sdf

Start the bus communication

Start the SimpleMenu. You should be able to find your Baby-LIN-RM-III in the device list on the left. Click the connect button and then load the SDF you created earlier.

Now you can see the variables you added to monitor. To start the simulation/monitoring click on the start button.

Now you will see the changes of these signals.

Updates

Update philosophy

The functionality and features of the Baby-LIN-RM-III are defined by the installed firmware as well as the used versions of the LINWorks and Baby-LIN- DLL. As we are permanently working on product improvements, the software and firmware are updated periodically. These updates make new features available and solve problems, which have been discovered by our internal tests or have been reported by customers with earlier versions. All the firmware updates are done in a way, that the updated Baby-LIN-RM-III will continue to work with an already installed, older LINWorks installation. So updating the Baby-LIN-RM- III firmware does not mean, that you necessarily have to update your LINWorks installation as well. Therefor it is highly recommended to always update your Baby-LIN-RM-III to the latest available firmware version. We also recommend to also update your LINWorks software and Baby-LIN-DLL, if new updates get available. Since new versions of the SessionConf may introduce new features to the SDF format, it is possible that older firmware, SimpleMenu or Baby-LIN-DLL versions are not compatible. Therefor you should also update them. If you update your LINWorks it is highly recommended updating the firmware of your Baby-LIN-RM-III to the latest available firmware version as well as distributed the used versions of the Baby-LIN-DLL. So the sole reason to stay with an older LINWorks version should be, that you use a Baby-LIN-RM-III with outdated firmware version, which you can’t upgrade for whatever reason.

It is highly recommended updating the Baby-LIN driver to the latest version.

Downloads
The latest version of our software , fimrware and documents can be found in the download area on our website www.lipowsky.de.

Advice

The LINWorks archive contains not only the LINWorks software but also the manuals, datasheets, application notes and examples. Only the device firmware packages are not included. The firmware is available as separate package.

Documents such as the data sheets or introductions to LIN bus communication are freely available for download. For all other documents and our LINWokrs software you have to log in. If you do not have a customer account yet you can register on our website. After your account has been activated by us you will receive an e-mail and then you have full access to our download offer.

Installation

The LINWorks suite is delivered with a handy setup application. If you already have installed an older version you can simply install the newer versions. The setup application will take care of overwriting the required files. Simply follow these steps:

• Start the “Setup.exe”.
• Select the components you want to install.
• Follow the instructions.

Warning

Please stop all running LINWorks applications and disconnect all Baby-LIN devices before starting the setup.

Version incompatibility

If you have used the SessionConf and SimpleMenu with version V1.x.x, the new version will be installed parallel to the old ones. Therefor you have to use the new shortcuts to start the new versions.

Check version
If you want to check the current version of the Baby-LIN-RM-III firmware or a LINWorks component the following chapter shows you how it is done: Baby-LIN- RM-III firmware
Start the SimpleMenu and connect to the Baby-LIN-RM-III. Now the firmware version is visible in the device list.

works [LDFEdit SessionConf SimpleMenu LogViewer]
Select the menu option “Help”/”About”/”Info”. The info dialog will show the software version.

Baby-LIN-DLL

Call BLC_getVersionString() . The version is returned as string.

Baby-LIN-DLL .NET Wrapper

Call GetWrapperVersion() . The version is returned as string.

Support information

In case of any questions, you can get technical support by email or phone. We can use TeamViewer to give you direct support and help on your own PC. This way we are able to sort out problems fast and direct. We have sample code and application notes available, which will help you to make your job. Lipowsky Industrie-Elektronik GmbH realized many successful LIN and CAN-related projects and therefore we can draw upon many years of experience in these fields. We also provide turnkey solutions for specific applications like EOL (End of Line) testers or programming stations. Lipowsky Industrie-Elektronik GmbH designs produces and applies the Baby-LIN products, so you can always expect qualified and fast support.

References

• LIN- and CAN-Bus Simulators Tools for Test and Production | Lipowsky Industrie Elektronik GmbH
• LIN- and CAN-Bus Simulators Tools for Test and Production | Lipowsky Industrie Elektronik GmbH
• Your contact to us | Lipowsky Industrie-Elektronik GmbH
• Downloads | Lipowsky Industrie Elektronik GmbH
• Downloads | Lipowsky Industrie Elektronik GmbH

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