Hello, Dear Readers,   In this post, I will share some deep insights into regular pattern searching using grep, awk, and sed. In VLSI/EDA flows, engineers frequently work with large Innovus, Voltus, STA, EMIR, synthesis and simulation reports. Linux commands such as grep , awk , and sed provide a fast way to search, filter and process this data without opening huge files manually. 1. Regular Expressions: A regular expression (regex) defines a pattern for searching text. Common patterns: Pattern Meaning Example . Any character V.D * Zero or more ab* + One or more ab+ [0-9] Digit U [0-9] [a-z] Lowercase [a-z] + ^ Start of line ^VDD $ End of line VDD$ ` ` OR `VDD VSS` For example: grep -E 'ERROR|WARNING|FATAL' voltus.log Searches for any of the three patterns. 2. grep — Search and Filter: grep is mainly used to find matching lines . Basic search grep 'VIOLATION' report.rpt Case-insensitive search grep -i 'error' run.log Show line numbers grep -n 'VIOLATION...

Hello Dear Readers,   Today in this post, I will provide some deep insight about yaml langauge for CAD flow developments with detailed examples. YAML is not a programming language in the same sense as Python, Tcl, C++, or Verilog. It is primarily a human-readable data serialization/configuration language . In semiconductor EDA, that distinction is important because YAML generally describes what a flow should do , while Python/Tcl/Shell and the EDA tools execute the flow . The official YAML specification describes it as a data serialization language designed to be human-friendly and portable across programming languages. For the semiconductor angle, this becomes particularly interesting because YAML can act as a configuration layer between design methodology and EDA implementation . Frameworks such as Hammer explicitly use YAML/JSON configuration and an intermediate representation to standardize information exchanged between design, technology, and tool plugins. 1. Introduction M...

Hello Dear Readers,   Currently at SiFive vacancy for Engineer I role . As the pioneers who introduced RISC-V to the world, SiFive is transforming the future of compute by bringing the limitless potential of RISC-V to the highest performance and most data-intensive applications in the world. SiFive’s unrivaled compute platforms are continuing to enable leading technology companies around the world to innovate, optimize and deliver the most advanced solutions of tomorrow across every market segment of chip design, including artificial intelligence, machine learning, automotive, data center, mobile, and consumer. With SiFive, the future of RISC-V has no limits. Job Description:   Responsibilities: Engage in the logic design and verification of digital IPs, CPUs, peripherals, and sub-systems across various VLSI domains. Create and implement innovative designs and testbenches that are highly scalable, configurable, and efficient. Strong hands-on experience with UVM testbench devel...