G01R31/318314

A Method, a Device and a Computer Program for Operating a Modular Test Bench Comprising at Least One Test Bench Circuit to Test a Test Object
20230047570 · 2023-02-16 · ·

An embodiment of a method for operating a modular test bench is disclosed, wherein the modular test bench comprises at least one test module to test a test object. The method comprises receiving first information on a hardware revision and on a software revision of the test module and receiving second information on a hardware revision and on a software revision of the test object. The method further comprises determining, if the combination of the first information and the second information fulfills a predetermined criterion and outputting a check signal, enabling the use of the test bench if the combination of the first information and the second information fulfills the predetermined criterion.

System design support apparatus and system design support method
11568112 · 2023-01-31 · ·

A system design support apparatus generates new user data on the basis of derived user data including: base user data reference information that is information specifying user data to be referred to; and information on an item changed from the user data specified by the base user data reference information and on changed contents. A system design support method includes a step of selecting user data to be used, a step of generating derived user data including: base user data reference information for specifying the selected user data to be used; and information on an item changed from the user data specified by the base user data reference information and on changed contents, and a step of generating new user data on the basis of the derived user data.

METHOD OF CONVERTING A SERIAL VECTOR FORMAT (SVF) FILE TO A VECTOR COMPATIBLE WITH A SEMICONDUCTOR TESTING SYSTEM

Provided is a method for enabling a semiconductor test system for testing field programmable gate arrays (FPGAs) to operate as a device programmer by converting a serial vector format (SVF) file containing a bitstream and converting the file to a vector compatible with the semiconductor test system. When executed on an HP93K test system, as an example, the vector generates JTAG (Joint Test Action Group) signals, which program the bitstream into a Field Programmable Gate Array (FPGA). The inventive method eliminates the need for a separate computer system that is normally required to run FPGA programming software and also eliminates the need to use FPGA vendor provided JTAG programming pods. Eliminating the need for the vendor software, a separate computer system, and programming pods reduces equipment cost, maintenance, and streamlines the electrical test, evaluation, and characterization of FPGAs.

Self-test system for PCIe and method thereof

A self-test system for PCIe and a method thereof are disclosed. In the system, a first circuit interconnect card and a second circuit interconnect card are inserted into CEM slots, respectively, and the first circuit interconnect card and the second circuit interconnect card are electrically connected to each other through a FFC, the central processing unit generates and provides differential signals to the first circuit interconnect card and the second circuit interconnect card; the first circuit interconnect card or the second circuit interconnect card provide differential signals to the second circuit interconnect card or the first circuit interconnect card through the first FFC interface and the second FFC interface, respectively, and the second circuit interconnect card or the first circuit interconnect card provides the differential signals to a central processing unit, so as to implement self-check for PCIe.

Hierarchical access simulation for signaling with more than two state values

A method includes instantiating a simulation of an electronic design for a device under test (DUT) in hardware design language responsive to a user selection thereof. A subset of leaf nodes from a plurality of leaf nodes from the electronic design with input/output signaling of more than two values is identified. A hierarchical path for each leaf node of the plurality of leaf nodes of the electronic design for the DUT with respect to a testbench is calculated. A bypass module for the subset of leaf nodes is generated. The bypass module is generated in response to detecting presence of the subset of leaf nodes in the electronic design with input/output signaling of more than two values. The bypass module facilitates communication between the testbench and the subset of leaf nodes. Leaf nodes other than the subset of leaf nodes communicate with the testbench without communicating through the bypass module.

SYSTEM AND METHOD FOR FORMAL FAULT PROPAGATION ANALYSIS
20220414306 · 2022-12-29 ·

A system and method are disclosed for formulating a sequential equivalency problem for fault (non)propagation with minimal circuit logic duplication by leveraging information about the location and nature of a fault. The system and method further apply formal checking to safety diagnoses and efficiently models simple and complex transient faults.

DEBUG SYSTEM AND DEBUG METHOD
20220413042 · 2022-12-29 ·

A debug system for debugging a logic design includes an adaptor and a debug station connected to the adaptor. The logic design includes a plurality of design modules. The adaptor is configured to receive an emulation output of the logic design. The emulation output includes a design snapshot of the logic design and input signals to the logic design that both are recorded during an emulation process of the logic design. The debug station is configured to generate, based on the emulation output and a netlist of a design module of the logic design, an emulation history of the design module.

METHOD AND APPARATUS AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM FOR DEBUGGING SOLID-STATE DISK (SSD) DEVICE
20220413047 · 2022-12-29 · ·

The invention relates to a method, an apparatus and a non-transitory computer-readable storage medium for debugging a solid-state disk (SSD) device. The method is performed by a processing unit of a single-board personal computer (PC) when loading and executing a function of a runtime library, to include: receiving a request to drive a General-Purpose Input/Output (GPIO) interface (I/F), which includes a parameter required for completing a Joint Test Action Group (JTAG) command; issuing a first hardware instruction to the GPIO I/F to set a register corresponding to a GPIO test data input (TDI) pin according to the parameter carried in the request for emulating to issue the JTAG command to a solid-state disk (SSD) device, wherein the single-board PC is coupled to the SSD device through the GPIO I/F; issuing a second hardware instruction to the GPIO I/F to read a value of the register corresponding to the GPIO TDI pin; and replying with a completion message in response to the request.

GENERAL DIGITAL SIGNAL PROCESSING WAVEFORM MACHINE LEARNING CONTROL APPLICATION

A test and measurement system includes a machine learning system configured to communicate with a test automation system, a user interface configured to allow a user to provide one or more user inputs and to provide results to the user, and one or more processors, the one or more processors configured to execute code that causes the one or more processors to receive one or more user inputs through the user interface, the one or more user inputs at least identifying a selected machine learning system configuration to be used to configure the machine learning system, receive a waveform created by operation of a device under test, apply the configured machine learning system to analyze the waveform, and provide an output of predicted metadata about the waveform.

MULTI-RATE SAMPLING FOR HIERARCHICAL SYSTEM ANALYSIS
20220390514 · 2022-12-08 ·

System analysis by receiving a model of a complex system design. The model includes at least one layer. The analysis includes performing a plurality of simulations of the performance of the layer. The number of simulations is determined according to a number of system components associated with the layer. The analysis further includes determining a worst-case result for a set of simulations from the plurality of simulations and assigning the worst-case result to an overall system simulation.