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Rapi Time, part of the Rapita Verification Suite ( R VS), is the timing analysis component of our Multicore Timing Solution. Rapita have been providing execution time analysis services and tooling since 2004. Why can I trust Rapita's Multicore worst-case execution time statistics?.These accesses can interfere with each other, potentially degrading system performance. In this simplified example, tasks running independently on the two cores may need to access main memory simultaneously via the memory controller. Rapita’s solutions for multicore timing analysis analyze the effects of this type of interference channel.Ī very simple example of a shared resource interference channel is shown below: Interference based on shared resources may occur in multicore systems when multiple cores simultaneously compete for use of shared resources such as buses, caches and main memory. Of these interference channels, interference caused by the sharing of certain resources in multicore systems is one of the most significant in terms of execution times. This definition can be applied to a range of ‘platform properties’, including thermal factors etc. In the CAST-32A position paper published by the FAA, an interference channel is defined as "a platform property that may cause interference between independent applications".
#Timing solutions iso#
Our solution can be used to produce timing evidence needed to satisfy DO-178C objectives (in line with CAST-32A guidance), and ISO 26262 standards.
#Timing solutions software#
Evidence must be produced to demonstrate that software operates within its timing deadlines. With the new X2 Server Firmware 4.0 and SDK 4.0 it is also possible to create a GPS tracking feed in your own, custom-built software.When developing safety-critical applications to DO-178C (CAST-32A) guidelines or ISO 26262 standards, there are special requirements for using multicore processors. Live results updates at the complete track Depending on the layout, environment, and location the number of X2 BaseLinks required may vary.
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Several X2 BaseLinks can be linked together and controlled by race control. With a Multi BaseLink setup, you can cover the complete track, no matter what size, height difference, and terrain. The Ethernet port connection to the LoopBox ensures a high-quality signal. This will ensure an optimized wireless connection with the RaceLink installed at the vehicles. The BaseLink connects to the LoopBox, which also powers the BaseLink.
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The BaseLink is installed at the start/finish line, on a position with a maximum line of sight, for instance on top of a finish arch. The BaseLink sends out radio frequency signals, which are picked up by the X2 RaceLink antennas mounted on each vehicle.