Yim worked on the Purdue-SoCET/RISCVBusiness repository, developing and enhancing a multicore RISC-V test environment over four months. He expanded the system’s parallel testing capabilities from two to eight cores, integrating AHB bus protocols and refining multicore testbench infrastructure for scalable verification. Using SystemVerilog, C, and YAML, Yim implemented assembly-based core startup, per-core task arrays, and robust synchronization, enabling thorough multicore validation and faster CI feedback. He also addressed configuration bugs, such as non-cacheable memory regions, and improved build reliability. The work demonstrated depth in embedded systems, multicore programming, and hardware verification, resulting in a more scalable and reliable validation pipeline.
May 2025: Purdue-SoCET/RISCVBusiness delivered a key feature expanding multicore testing parallelism to 8 cores, elevating validation coverage and reliability for RISC-V cores under heavier parallel workloads. This release updated Verilator options, example configurations, and C tests to support higher parallelism. A single committed change was recorded: e298a4658994bf531f3fc62cb04ceed095992747 — Update c-tests for maxmium 8 cores. No major bugs were logged this month. Overall impact includes stronger validation pipelines, earlier detection of concurrency issues, and a scalable path for CI to cover larger core counts. Technologies demonstrated include Verilator tuning, C test updates, parallel test strategies, and cross-repo collaboration, highlighting tangible business value through improved reliability and faster feedback loops.
May 2025: Purdue-SoCET/RISCVBusiness delivered a key feature expanding multicore testing parallelism to 8 cores, elevating validation coverage and reliability for RISC-V cores under heavier parallel workloads. This release updated Verilator options, example configurations, and C tests to support higher parallelism. A single committed change was recorded: e298a4658994bf531f3fc62cb04ceed095992747 — Update c-tests for maxmium 8 cores. No major bugs were logged this month. Overall impact includes stronger validation pipelines, earlier detection of concurrency issues, and a scalable path for CI to cover larger core counts. Technologies demonstrated include Verilator tuning, C test updates, parallel test strategies, and cross-repo collaboration, highlighting tangible business value through improved reliability and faster feedback loops.
Month: 2025-04 | Repository: Purdue-SoCET/RISCVBusiness. Key outcomes: Delivered Multicore Testing Framework and Verification for RISCVBusiness, enabling assembly-based core startup, per-core task arrays, synchronization, multi-hart management, and parallelized C test builds for robust multicore validation; Fixed Non-cacheable Memory Address Configuration Bug by introducing NONCACHE_START_ADDR and propagating it to bus_ctrl to ensure correct non-cacheable addressing. Result: improved multicore coverage, faster validation, and a more scalable verification backend.
Month: 2025-04 | Repository: Purdue-SoCET/RISCVBusiness. Key outcomes: Delivered Multicore Testing Framework and Verification for RISCVBusiness, enabling assembly-based core startup, per-core task arrays, synchronization, multi-hart management, and parallelized C test builds for robust multicore validation; Fixed Non-cacheable Memory Address Configuration Bug by introducing NONCACHE_START_ADDR and propagating it to bus_ctrl to ensure correct non-cacheable addressing. Result: improved multicore coverage, faster validation, and a more scalable verification backend.
March 2025 performance summary for Purdue-SoCET/RISCVBusiness. Delivered AHB bus integration for the RISC-V core with multicore readiness, including YAML configuration updates and explicit multicore role clarification. Upgraded the multicore testbench with a generic bus interface to enable scalable verification across configurations. Implemented a tracker/build configuration fix to ensure cpu_tracker is included in builds, improving reliability of automated verification. These changes reduce integration risk, accelerate verification cycles, and provide a clearer path for multicore deployments.
March 2025 performance summary for Purdue-SoCET/RISCVBusiness. Delivered AHB bus integration for the RISC-V core with multicore readiness, including YAML configuration updates and explicit multicore role clarification. Upgraded the multicore testbench with a generic bus interface to enable scalable verification across configurations. Implemented a tracker/build configuration fix to ensure cpu_tracker is included in builds, improving reliability of automated verification. These changes reduce integration risk, accelerate verification cycles, and provide a clearer path for multicore deployments.
February 2025 monthly summary for Purdue-SoCET/RISCVBusiness. Features delivered include enhancements to the RISC-V test environment such as enabling RV32C and RV32A ISA extensions, increasing the number of processing cores (harts) to two, and introducing a simulation timeout to the loop and a timeout check to prevent tests from running indefinitely. Major bugs fixed: none reported this period. Overall impact: expanded test coverage and reliability, enabling more robust validation of ISA features and faster CI feedback. Technologies/skills demonstrated: test harness configuration, ISA feature enablement, parallel test execution, and robust test execution with timeout safeguards.
February 2025 monthly summary for Purdue-SoCET/RISCVBusiness. Features delivered include enhancements to the RISC-V test environment such as enabling RV32C and RV32A ISA extensions, increasing the number of processing cores (harts) to two, and introducing a simulation timeout to the loop and a timeout check to prevent tests from running indefinitely. Major bugs fixed: none reported this period. Overall impact: expanded test coverage and reliability, enabling more robust validation of ISA features and faster CI feedback. Technologies/skills demonstrated: test harness configuration, ISA feature enablement, parallel test execution, and robust test execution with timeout safeguards.
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