Method and System for Generating Circuit Schematic Diagram

Abstract

The invention provides a method for generating a schematic circuit diagram, which includes calculating the hierarchical value of the netlist device to determine the column of the netlist device, calculating the sorting value of the netlist device, and generating a pseudo-device according to the connection line or the feedback line. For the signal connection between adjacent devices, the wiring algorithm is simplified, and the netlist devices and pseudo-devices are sorted according to the sorting value to generate a sorting diagram, and the constraint diagram is generated according to the sorting diagram, with less wiring bends and forward traversal of the constraint diagram , calculate the value of the first vertical position, traverse the constraint graph in reverse, adjust the value of the first vertical position to generate the value of the second vertical position, assign the signal connection line to the vertical track, calculate the value of the horizontal position, and connect the signal Connect lines to generate circuit schematics, device layout does not need to be grid-based, and the graphical display is better. The invention also provides a circuit schematic diagram generation system for realizing the circuit schematic diagram generation method.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a method and system for generating circuit schematic diagrams. Background technique [0002] The circuit schematic diagram, also known as the circuit diagram, intuitively reflects the components and their electrical connections in the circuit in a graphical way, directly reflects the structure and working principle of the circuit, and is widely used in the design and analysis of circuits. For complex FPGA integrated circuits, the automatic generation of circuit schematic diagrams from the logic circuit netlist for graphical display is an indispensable tool for aided design software to improve the designer's interactive experience. [0003] In order to enhance the understanding of complex circuit schematic diagrams by integrated circuit designers, the automatically generated circuit diagrams need to be regular, symmetrical, readable, easy to understand, and as close as...

AI Technical Summary

Problems solved by technology

In the prior art, a grid-based circuit diagram automatic generation method is adopted, and a device is placed in each grid interval, which is more suitable for circuits with little difference in the size of the graphical display device, so it is not suitable for FPGA integrated circuits or in graphics. Use when displaying hierarchical integrated circuit designs

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