Abstract:
A method for routing a circuit device having an array of bump pads includes identifying a routing direction associated with a bump, generating a power strap and a ground strap based on the routing direction, forming a routing channel in accordance with the routing direction, setting a start point and an endpoint in the routing channel, and connecting the start point and the endpoint using a wire within the routing channel. The method further includes placing the start point to a power or ground strap in response to a target power/ground ratio.
Abstract:
A system, apparatus and computer-implemented method for manipulating a parameterized cell device into a custom layout design. The method begins by receiving at least one parameterized cell representing a physical circuit from, for example, a database or configuration file. The parameterized cell has a plurality of configurable attributes. The method continues by adjusting one of the configurable attributes of the parameterized cell according to a capability associated with the one attribute. The attributes may include one or more of a parameter mapping capability, a port mapping capability, an abutment capability, a directional extension capability, a channel width capability, and a boundary layer capability. The method then calculates a new configuration for the parameterized cell based upon the adjustment, and applies the new configuration for the parameterized cell to a layout of the represented physical circuit.
Abstract:
A computer implemented method of routing a net of an electronic circuit is disclosed. The net connects a plurality of pins of the electronic circuit. The method includes selecting, using one or more computer systems, first and second main spine routing tracks for respective first and second groups of pins of the net. The method also includes generating, using one or more computer systems, a first main spine wire on the selected first main spine routing track and a second main spine wire on the selected second main spine routing track. A router configured to perform the method is also disclosed.
Abstract:
User's register transfer level (RTL) design is analyzed and instrumented so that signals of interest are preserved and can be located in the netlist after synthesis. Then, the user's original flow of RTL synthesis and design partition is performed. The output is analyzed to locate the signals of interest. Latches are selectively inserted to the netlist to ensure that signal values can be accessed at runtime. After that, a place and route (P&R) process is performed, and the outputs are analyzed to correlate signal names to registers (flip-flops and latches) or memory blocks locations is field programmable gate array (FPGA) devices. A correlation database is built and kept for runtime use. During runtime, a software component may be provided on a workstation for the user to query signal values corresponding to RTL hierarchical signal names.
Abstract:
Methods and apparatus for recording and visualizing transactions of a test bench simulation are disclosed. Transaction-specific data generated from a test bench simulation may be displayed in a sequence diagram view to provide a view of the transactions arranged sequentially in time.
Abstract:
In one or more embodiments, a caching apparatus includes functionality to persist evaluation results associated with pcells in a design across sessions of an EDA application as well as across design libraries. The caching apparatus may create and maintain a mirror cache in a design library with only subMasters referenced by the design library. The contents of a central cache file or a mirror cache in the design library are examined for an evaluation result. If the evaluation result is not found in the central cache file, the evaluation result may be retrieved from the mirror cache if present.
Abstract:
A computer implemented method of routing a net of an electronic circuit is disclosed. The net connects a plurality of pins of the electronic circuit. The method includes selecting, using one or more computer systems, first and second main spine routing tracks for respective first and second groups of pins of the net. The method also includes generating, using one or more computer systems, a first main spine wire on the selected first main spine routing track and a second main spine wire on the selected second main spine routing track. A router configured to perform the method is also disclosed.
Abstract:
A test system for testing prototype designs includes a host workstation, multiple interface devices, and multiple prototype boards. The prototype boards include programmable devices which implement one or more partitions of a user design and an associated verification modules. The verification modules probe signals of the partitions and transmit the probed signals to the interface devices. The verification modules can also transmit output signals generated by one or more partitions on the prototype boards to the host workstation via the interface devices, and transmit input signals, which are received from the host workstation via the interface devices, to one or more partitions on the prototype boards.
Abstract:
A computer-implemented method to debug testbench code of a testbench associated with a circuit design by recording a trace of call frames along with activities of the circuit design. By correlating and displaying the recorded trace of call frames, the method enables users to easily trace as execution history of subroutines executed by the testbench thereby to debug the testbench code. In addition, users can trace source code of the testbench code by using the recorded trace of call frames. Furthermore, users can debug the testbench code utilizing a virtual simulation, which is done by post-processing records of the virtual simulation stored in a database.
Abstract:
A computer-implemented method for routing at least one conductor includes generating the at least one conductor within a bounded region on a planar surface in accordance with a template, and placing at least one slit in the conductor when the conductor overlaps a specified region of the bounded region in accordance with a specified pattern.