Simbuck Design

Customer Statement

"A device is needed to enable the Engineering and Scientific Community to stimulate embedded software into believing it is running a system whilst sitting on the desk. What is required is the need to be able to adjust in real-time various signal types in parallel to exercise the control features of interest. The Engineer should be able to do this independantly without the need to be attached to a PC.

Ideally, the development engineer would be able to run various scenarios repeatedly from a script or a previous recording from a real System. Off-line configuration, storage and recall of the signals being used to stimulate the target system should be provided to improve flexibility of the testing "


Signal Parrot





In a world where time to market is constantly accelerating, the demand for real time embedded systems of increasing complexity and rapidly changing requirements presents new challenges to engineers with responsibility for development, testing, calibration and validation. Checkta is a range of simple-to-use, cost-effective devices for engineers to assist them in meeting these challenges by allowing the full stimulation of Electronic Control Units on the desk. For many years now, complex real time embedded systems have been tested using Hardware in the Loop (HiL) systems to simulate the plant before prototype hardware becomes available. However, HiL systems are an expensive and therefore limited resource, usually situated in their own laboratories, requiring complex and time-consuming set up and configuration. Testing is often done at a later stage during the development process than is ideal, potentially resulting in long feedback loops and greater costs.


Checkta Stimulus Generators can be used to enhance the development process prior to HiL and field validation, greatly increasing the probability that testing with valuable HiL and hardware resources will be a success. Checkta empowers the development team by providing an autonomous platform that enables early and repeated evaluation of the target system.


Engineers can evaluate early and often, giving them continual, short feedback loops, increasing productivity and reducing the risk of failure in HiL and field validation.


Electronic Control Modules have a varied range of Input and Output signals. For Simbuck-ASG, as implemented on Checkta devices, the signals of interest are the hardware INPUT signals needed to drive the embedded software system. If these INPUT signals are stimulated the software running on the target controller is co-erced into running on the desk. By monitoring the OUTPUT from the target system the engineer is able to assess the function of the software prior to applying the Controller to the real system.

By leveraging the Simbuck Device Framework the currrent capabilities of Checkta devices provision a consistant and cohesive approach to OSI Level1 signal stimulation.

An important distinction is made between a Simulated Signal and a Stimulus signal for Checkta Stimulus Generators.

A Simulated Signal is a signal that is considered to be sufficiently accurate to confirm an input stage/software feature works to specification.
A Stimulus signal is a signal that is considered to be close enough to exercise an input stage sufficiently to confirm the input stage/software feature functions.


Our overriding objective is to provide a HiL device at a cost effective price point that allows EVERY engineer and Scientist to have effective HiL stimulus capabilities on his/her desk.


contact us at: