The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2017
Filed:
Mar. 28, 2013
Dspace Digital Signal Processing and Control Engineering Gmbh, Paderborn, DE;
Ralf Grosse Boerger, Paderborn, DE;
Marco Schmidt, Paderborn, DE;
dSPACE digital signal processing and control engineering GmbH, Paderborn, DE;
Abstract
A method for providing a timestamp in a real-time system, whereby the real-time system has an FPGA and a CPU, which cooperate with one another, and at least one register, which contains a system time, is implemented in the FPGA. The method includes the steps of providing a CPU counter for the system time, which is driven by a clock signal of the CPU, providing a synchronization counter in the CPU, whereby the synchronization counter is driven by a clock signal of the CPU, reading of the counter for providing the system time by a real-time application, querying the synchronization counter in the real-time application, and synchronizing the counter with the system time in the real-time application, when the synchronization counter outputs a value that corresponds to more than a predefined time period since the last synchronization of the CPU counter with the system time.