pulp-platform/croc
Jul 2025 – Mar 2026
5 Months active
Languages Used
SystemVerilogAssemblyCMakefileTclYAMLBashMarkdown
Technical Skills
Hardware DesignVerificationC programmingFPGA designFPGA developmentRTL design
Enrico Zelioli
PROFILE
Enrico Zelioli
Contributed to the pulp-platform/croc repository by delivering hardware and embedded systems features focused on interrupt handling, testbench reliability, and build automation. Over several months, implemented a CLINT-based interrupt system and OBI timer subsystem in C and SystemVerilog, modernizing SoC control and improving simulation determinism. Addressed hardware verification challenges by refining JTAG testbench timing and enhancing documentation clarity. Refactored project flows using Bash and Tcl scripting to improve portability and CI/CD integration, while maintaining code hygiene through targeted bug fixes and codebase cleanup. The work emphasized robust system design, reproducible builds, and maintainable RTL and driver development practices.
Overall Statistics
Feature vs Bugs
70%Features
Repository Contributions
25Total
Bugs
3
Commits
25
Features
7
Lines of code
10,270
Activity Months5
Your Network
27 peopleWork History
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026 (pulp-platform/croc) — Focused on documentation clarity and code reliability. Delivered targeted features and fixes that reduce user confusion and improve build stability. Key features delivered: Block Diagram Documentation Enhancement corrected a typographical error, improving user understanding. Major bugs fixed: Verilog Output Logic Typo Fix in cve2_core_tracing removed an extra comma, ensuring proper syntax and reliability. Overall impact: clearer onboarding, reduced risk of misinterpretation, and improved maintainability across the Croc repo. Technologies/skills demonstrated: technical writing, Verilog syntax correctness, meticulous code review, and strong commit traceability.
2 Commits • 1 Features
Mar 1, 2026March 2026 (pulp-platform/croc) — Focused on documentation clarity and code reliability. Delivered targeted features and fixes that reduce user confusion and improve build stability. Key features delivered: Block Diagram Documentation Enhancement corrected a typographical error, improving user understanding. Major bugs fixed: Verilog Output Logic Typo Fix in cve2_core_tracing removed an extra comma, ensuring proper syntax and reliability. Overall impact: clearer onboarding, reduced risk of misinterpretation, and improved maintainability across the Croc repo. Technologies/skills demonstrated: technical writing, Verilog syntax correctness, meticulous code review, and strong commit traceability.
March 2026
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for pulp-platform/croc focused on portability, automation, and cross-tech readiness. Delivered a run-script driven flow for the artistic component, refactored project flow to bash/Tcl, and tightened environment/setup scripts to improve cross-technology portability. Aligned hardware/software integration by adjusting OpenROAD die area and streamlining environment variables, enabling faster onboarding and more reliable CI/runs. No major bugs fixed this month; instead, the work established solid foundation for reproducible builds and easier maintenance. Co-authored work with Thomas Benz, Philippe Sauter, and Enrico Zelioli to advance cross-team collaboration and code hygiene.
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for pulp-platform/croc focused on portability, automation, and cross-tech readiness. Delivered a run-script driven flow for the artistic component, refactored project flow to bash/Tcl, and tightened environment/setup scripts to improve cross-technology portability. Aligned hardware/software integration by adjusting OpenROAD die area and streamlining environment variables, enabling faster onboarding and more reliable CI/runs. No major bugs fixed this month; instead, the work established solid foundation for reproducible builds and easier maintenance. Co-authored work with Thomas Benz, Philippe Sauter, and Enrico Zelioli to advance cross-team collaboration and code hygiene.
December 2025
12 Commits • 2 Features
Dec 1, 2025December 2025: Delivered a major interrupt handling overhaul and comprehensive RTL/test maintenance for pulp-platform/croc. The CLINT driver and direct interrupt mode in CVE2 improved interrupt responsiveness and timing alignment, while extensive RTL cleanup and enhanced testing tooling strengthened reliability and reduced future maintenance risk. The combined work delivers measurable business value: more deterministic simulations, faster validation cycles, and a cleaner foundation for upcoming features.
12 Commits • 2 Features
Dec 1, 2025December 2025: Delivered a major interrupt handling overhaul and comprehensive RTL/test maintenance for pulp-platform/croc. The CLINT driver and direct interrupt mode in CVE2 improved interrupt responsiveness and timing alignment, while extensive RTL cleanup and enhanced testing tooling strengthened reliability and reduced future maintenance risk. The combined work delivers measurable business value: more deterministic simulations, faster validation cycles, and a cleaner foundation for upcoming features.
December 2025
November 2025
9 Commits • 3 Features
Nov 1, 2025Month 2025-11 Monthly Summary for pulp-platform/croc focused on delivering architectural improvements, stabilizing runtime behavior, and expanding test coverage. The period emphasized hardening the OBI subsystem, modernizing interrupt and timer handling, and ensuring predictable software termination semantics. Outcomes include significant feature delivery, targeted bug fixes, and a leaner, more maintainable codebase that supports reliable boot, responsive interrupts, and robust tooling compatibility.
November 2025
9 Commits • 3 Features
Nov 1, 2025Month 2025-11 Monthly Summary for pulp-platform/croc focused on delivering architectural improvements, stabilizing runtime behavior, and expanding test coverage. The period emphasized hardening the OBI subsystem, modernizing interrupt and timer handling, and ensuring predictable software termination semantics. Outcomes include significant feature delivery, targeted bug fixes, and a leaner, more maintainable codebase that supports reliable boot, responsive interrupts, and robust tooling compatibility.
July 2025
1 Commits
Jul 1, 2025July 2025 focused on stabilizing hardware testbench timing for the Croc project to ensure reliable JTAG-based stimuli application and sampling across varying clock domains. The fix aligns timing to the JTAG clock period rather than the system clock, eliminating cross-frequency synchronization issues and reducing test flakiness. Deliverable improves hardware verification reliability and supports smoother integration with varying hardware clocks.
1 Commits
Jul 1, 2025July 2025 focused on stabilizing hardware testbench timing for the Croc project to ensure reliable JTAG-based stimuli application and sampling across varying clock domains. The fix aligns timing to the JTAG clock period rather than the system clock, eliminating cross-frequency synchronization issues and reducing test flakiness. Deliverable improves hardware verification reliability and supports smoother integration with varying hardware clocks.
July 2025
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Quality Metrics
Correctness96.8%
Maintainability90.4%
Architecture93.6%
Performance90.4%
AI Usage20.8%
Skills & Technologies
Programming Languages
AssemblyBashCMakefileMarkdownSystemVerilogTclYAML
Technical Skills
C programmingCI/CDFPGA designFPGA developmentHardware DesignRTL designSystemVerilogVerificationVerilatorVerilogautomationbuild automationconfiguration managementdebuggingdigital design
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