Simulink Interface Concepts

Simulink Interface Concepts

In Model-based Development and Embedded Software Engineering, the growing complexity requires concepts like modularization, ease of maintenance, or module reusability. In this context it is crucial to understand the interface in Simulink, which is defined by the data flow into and out of a subsystem. This blog article gives an overview about the different interfaces […]

Automatic Test of AUTOSAR Code Replacement Library Routines at Ford Motor Company

The Journey – from idea to solution It seems like every day more and more software teams are developing software in a model-based way, using Simulink models and auto-generated c-code… and Ford is no different. Many low-level math and interpolation routines have been developed by the central software team as libraries that can be used […]

AUTOSAR – What is the Best Approach to Handle Reusable Code?

AUTOSAR reusable code

Component reuse is a common use case in any type of software and this is particularly true in automotive applications. Consider the equipment in the cars such as wheels, seats, doors, lights, clutches (e.g., in a dual-clutch transmission), and so on. They are controlled by software and as they exist by pairs, it makes sense […]

Interview: How does a Model Checker work?

Model Checking is part of the Formal Methods which address formal specification, formal development, formal verification and theorem provers. Model Checking belongs to the formal verification and provides a complete mathematical proof to verify your system-under-test. BTC EmbeddedPlatform uses the model checking technology for structural test data generation to achieve full code coverage, for formal […]

ISO 26262 Functional Safety Requirement Types

With the aim to provide technical coherence, reliability and safety, requirements engineering is the process for defining, documenting and managing requirements. In the 90s, the IEEE provided a general definition of requirements engineering with five phases: elicitation, analysis, specification, verification and management. Within each industry, requirements engineering has been adapted to the specific domain of […]

Why and How to Improve Requirements

“How do you manage your requirements?” We ask this question quite often in customer meetings. The people we meet are usually developers and testers in the automotive industry. In most cases the answers range between “We do not have any requirements. The model represents them.” and “We use a requirements management system; however, the requirements […]

What You Should Know About Fixed-Point Code

Fixed-point Code - What you should know - Blog Article

Vocabulary: Floating-point code? – Fixed-point code? – Scaling? – Resolution? – LSB? Basically, we can distinguish between two kinds of datatypes in embedded code: Floating-point and Integer. An integer variable basically represents whole numbers and the value range is limited by the number of bits. For example, an (unsigned) 8bit Integer can represent 2^8=256 different values, by default […]

When and how to generate test cases automatically

The automatic test case generation has always been a controversial topic. While some people dream about stopping any manual test activities others say that test generation is not allowed. But who is right? Test Goals for automatic test case generation Let’s have a quick look at the possible test goals for which we can generate […]

The Power of Focus – How to Optimize a Model Checker for Embedded Software

1. Focus on effectiveness to solve the problem of your customer! Since day one we address exactly the problem classes our customer needs to solve, i.e. large-sized auto-generated embedded code –on the one hand– with integer, floating point and pointer arithmetic, large look-up tables, and state-flow logic but –on the other hand– even without recursive functions, memory allocation, and […]

AUTOSAR – What Every Function Developer Should Know…

AUTOSAR-Architecture

In recent decades, the demands for designing smarter and safer vehicles has caused a significant increase in the size and complexity of the automotive systems software. In a modern high-end passenger car, more than 100 million software lines of code (SLoC) are embedded and distributed across as many as 80 ECUs communicating in a network […]