摘要:
Method and apparatus for interfacing between a high-level modeling system and a hardware description language (HDL) co-simulation engine. A plurality of HDL co-simulation engine libraries are queried as to the capabilities of the engines. A co-simulation engine is selected based on the capabilities, and an instance of the engine is created. The selected co-simulation engine is configured, input logic vectors are provided to the selected HDL co-simulation engine, and the co-simulation engine is executed accordingly.
摘要:
Methods are provided for creating an electronic system. A subsystem hierarchy is created that includes a plurality of subsystems for the electronic system. Certain subsystems are associated with a clock domain including a first subsystem associated with one clock domain and a second subsystem associated with another clock domain. A first stub component is instantiated in the first subsystem and a second stub component is instantiated in the second subsystem. Each stub component is instantiated in a parent subsystem and is coupled to signals in the parent subsystem. Stub components are matched based on user-configurable data associated with each stub component. Each set of matching stub components is replaced with a synchronizer component selected based on type data associated with each stub component. The signals in the parent subsystem for the matched stub components are coupled to the selected synchronizer component.
摘要:
A method of specifying clock domains in electronic circuit designs in a system level design tool is disclosed. The method generally comprises steps of providing a design having a plurality of functional blocks; incorporating a clock tag block within the design; and setting a clock domain provided by the clock tag block for a functional block of the plurality of functional blocks. A design tool enabling the association of clock domains with functional blocks in a system is also disclosed. The design tool generally comprises a plurality of functional blocks; a clock tag block having a predetermined clock rate; and a user interface enabling the selection of the functional blocks and the clock tag block in a design. The clock tag block provides a clock rate for at least one functional block of the plurality of functional blocks.
摘要:
An integrated circuit with overclocked embedded logic circuitry is described. In an example, a programmable logic device includes programmable logic blocks operable using a first clock signal having a first frequency. A dedicated logic circuit embedded within the programmable logic device is operable using a second clock signal synchronized with the first clock signal and having a second frequency, the second frequency being a multiple of the first frequency. An interface coupled between one or more of the programmable logic blocks and the dedicated logic circuit includes multiplexer circuitry to multiplex output signals produced by the one or more programmable logic blocks among input terminals of the dedicated logic circuit.
摘要:
Method and system for generating an electronic circuit design. A first logic block is instantiated in the design in response to user input controls. The first logic block includes parameters that specify its interface requirements. Bus interface blocks, which are parameterizable to connect a logic block to a bus, are provided in a library. Bus interface blocks that connect the first logic block to the bus are instantiated in the design, and the bus interface blocks are parameterized in response to the requirements of, the first logic block. The bus interface blocks are connected to the first logic block in such a way that the first logic block is extended into a peripheral that can communicate with the bus.
摘要:
Disclosed are various approaches for searching for electronic information. In one embodiment, a first plurality of objects is presenting for user selection. The first plurality of objects is a first subset of a second plurality of objects that is organized by a plurality of containment categories in a data structure. A plurality of associations is stored, and each association defines a relationship between one of, two different ones of the plurality of categories, or two objects in two different ones of the plurality of containment categories. In response to user selection of one of the first plurality of objects, a second subset of the second plurality of objects is selected. Selection of the objects in the second subset is in part a function of respective weighted relevance values for associations of the selected object to each of the second plurality of objects. The second subset of objects is output.
摘要:
Various approaches are disclosed for generating an output graphical object from an input graphical object. In one approach, vector graphics data representing the input graphical object in a memory are stored. A first subset of the vector graphics components of the vectors graphics data to leave unchanged for the output graphical object, a second subset of vector graphics components to alter for the output object, and a third subset of vector graphics components to discard from the output object are determined. Each vector graphics component in the second subset is altered, and the first and altered second subsets of vector graphics components as the output graphical object.
摘要:
Methods and systems for simulating an electronic system in a high level modeling system (HLMS). A design block and certain signals of the electronic system are selected. The selected signals include internal signals of the design block that are not ports of the design block. The electronic system is simulated in the HLMS, which includes a hardware-based co-simulation platform and a software-based co-simulation platform. A hardware realization of the design block is automatically generated and the design block is emulated in the hardware based co-simulation platform using the hardware realization of the design block. A sequence of values is displayed for the selected signals of the electronic system. During the simulation of the electronic system in the HLMS, the sequence of values for the internal signals of the design block and another sequence of values for the ports of the design block are transferred between the co-simulation platforms.
摘要:
A method communicates data with efficient conversion between representations in a high-level modeling system. The data is communicated from a first block in a first external format and the data is communicated to a second block in a second external format. The first block has a first internal representation of the data and the second block has a second internal representation of the data. The first internal representation is converted to the second internal representation without intermediate representation in the first and second external formats in response to different first and second external formats or different first and second internal representations. Conversion between the representations of the data is bypassed in response to like first and second external formats and like first and second internal representations. A signal instance is created that communicates the data between the blocks. Converters between data representations are installed in the signal instance on demand.
摘要:
A method communicates data with efficient conversion between representations in a high-level modeling system. The data is communicated from a first block in a first external format and the data is communicated to a second block in a second external format. The first block has a first internal representation of the data and the second block has a second internal representation of the data. The first internal representation is converted to the second internal representation without intermediate representation in the first and second external formats in response to different first and second external formats or different first and second internal representations. Conversion between the representations of the data is bypassed in response to like first and second external formats and like first and second internal representations. A signal instance is created that communicates the data between the blocks. Converters between data representations are installed in the signal instance on demand.