concordia-fsae/firmware
Oct 2024 – Feb 2026
14 Months active
Languages Used
RustCC++MakoPythonYAMLyamlAssembly
Technical Skills
Automotive DiagnosticsCommand Line Interface (CLI)Embedded SystemsFirmware DevelopmentUDS ProtocolBuild Automation
JoshLafleur
PROFILE
Joshlafleur
Josh Lafleur developed and maintained the concordia-fsae/firmware platform over 14 months, delivering 189 features and 65 bug fixes focused on embedded automotive systems. He engineered robust CAN bus networking, battery management, and vehicle control modules, applying C, Python, and Rust to build scalable, safety-critical firmware. His work included modernizing build systems with Buck2 and SCons, integrating real-time diagnostics, and enabling over-the-air updates for field reliability. Josh’s technical approach emphasized modular driver development, rigorous configuration management, and data integrity, resulting in a maintainable codebase that improved deployment efficiency, hardware compatibility, and operational safety across the vehicle’s embedded ecosystem.
Overall Statistics
Feature vs Bugs
74%Features
Repository Contributions
403Total
Bugs
65
Commits
403
Features
189
Lines of code
86,736
Activity Months14
Your Network
15 peopleWork History
February 2026
23 Commits • 10 Features
Feb 1, 2026February 2026 delivered substantial sensor, safety, and configurability improvements in concordia-fsae/firmware, driving reliability and faster iteration cycles. Key IMU work stabilized orientation estimation and fault handling, with tuning and init improvements, rotation mapping corrections, and calibration resets, supported by expanded IMU buffers and logging. A new SWS configuration UI and driver actions bring-up enables in-field tuning and configurable behavior without code changes. Safety and calibration capabilities were extended with VCPDU support for steering-angle calibration requests, IMU calibration flow, and integration of safety circuit HSD state, complemented by crash sensor alert notifications for reliable downstream signaling. Data integrity and diagnostics were strengthened through fixes to wheel distance calculation, odometer integration, and a dedicated vehicle speed message, plus GPS sentence tracking on CAN. Additional enhancements included dynamic Madgwick beta adaptation based on acceleration, improved IMU activity and sleep handling, and targeted fixes in BMS and test-build behaviors. Overall, these changes improve reliability, safety, and operator effectiveness, enabling safer field operation and faster development iteration.
23 Commits • 10 Features
Feb 1, 2026February 2026 delivered substantial sensor, safety, and configurability improvements in concordia-fsae/firmware, driving reliability and faster iteration cycles. Key IMU work stabilized orientation estimation and fault handling, with tuning and init improvements, rotation mapping corrections, and calibration resets, supported by expanded IMU buffers and logging. A new SWS configuration UI and driver actions bring-up enables in-field tuning and configurable behavior without code changes. Safety and calibration capabilities were extended with VCPDU support for steering-angle calibration requests, IMU calibration flow, and integration of safety circuit HSD state, complemented by crash sensor alert notifications for reliable downstream signaling. Data integrity and diagnostics were strengthened through fixes to wheel distance calculation, odometer integration, and a dedicated vehicle speed message, plus GPS sentence tracking on CAN. Additional enhancements included dynamic Madgwick beta adaptation based on acceleration, improved IMU activity and sleep handling, and targeted fixes in BMS and test-build behaviors. Overall, these changes improve reliability, safety, and operator effectiveness, enabling safer field operation and faster development iteration.
February 2026
January 2026
96 Commits • 42 Features
Jan 1, 2026January 2026 (2026-01) firmware monthly summary for concordia-fsae/firmware: Delivered core platform features, reliability enhancements, and performance improvements across the firmware stack. Key outcomes include a motor torque limit update aligned with motor spec, foundational tooling and bringup for the Cascadia Programmer, robust yamcan messaging enhancements with header refactoring and bridged injection support, bridged PM100DX EEPROM commands via tooling, and GPS-enabled vehicle speed improvements with enhanced data integrity and telemetry. These efforts improved safety, testing velocity, and data visibility across the vehicle system.
January 2026
96 Commits • 42 Features
Jan 1, 2026January 2026 (2026-01) firmware monthly summary for concordia-fsae/firmware: Delivered core platform features, reliability enhancements, and performance improvements across the firmware stack. Key outcomes include a motor torque limit update aligned with motor spec, foundational tooling and bringup for the Cascadia Programmer, robust yamcan messaging enhancements with header refactoring and bridged injection support, bridged PM100DX EEPROM commands via tooling, and GPS-enabled vehicle speed improvements with enhanced data integrity and telemetry. These efforts improved safety, testing velocity, and data visibility across the vehicle system.
December 2025
79 Commits • 41 Features
Dec 1, 2025December 2025 focused on delivering safer, faster vehicle launches and robust power management while enhancing operator UX and system visibility. Key outcomes include a launch-control overhaul spanning SWS, torque management, and YamCAN, a strengthened traction-control feedback loop, and substantial UX/improvement work across screen/driver input paths. This period also advanced CI manifest reliability and fault visibility for operators and engineers.
79 Commits • 41 Features
Dec 1, 2025December 2025 focused on delivering safer, faster vehicle launches and robust power management while enhancing operator UX and system visibility. Key outcomes include a launch-control overhaul spanning SWS, torque management, and YamCAN, a strengthened traction-control feedback loop, and substantial UX/improvement work across screen/driver input paths. This period also advanced CI manifest reliability and fault visibility for operators and engineers.
December 2025
November 2025
22 Commits • 4 Features
Nov 1, 2025November 2025 month summary focused on delivering feature-rich firmware improvements, strengthening reliability, and modernizing the build-and-deploy pipeline. Key feature work delivered includes SWS Bringup and Driver Interface with Buck2-build integration, new userInput/driverInput modules, a driver request interface, and migration of STW driver controls into the torque manager to enable robust vehicle state transitions and torque command handling across CAN messages. Major reliability and safety hardening encompassed: conUDS receive timeout increase for high-load reliability, OTA Agent stability fixes, and CAN-Bridge/BMS safety enhancements to prevent fault cascades during OTA and ensure safe recovery; a set of related hardening commits also addressed side effects and mapping fixes (e.g., SWS GPIO handling and BL CAN_SLEEP behavior). Build modernization and CI improvements were achieved through Buck2-based reorganizations, integration of SWS into builds, and removal of macOS 13 CI support to reduce fragility and streamline pipelines. Additional stabilization work included NVM init/cleanup fixes to reduce lifecycle bugs. Technologies and skills demonstrated include Buck2, SWS, yamcan, torque manager integration, CAN message choreography, and release-stage CI optimization, all contributing to higher platform reliability, faster iteration cycles, and safer OTA/BMS operations.
November 2025
22 Commits • 4 Features
Nov 1, 2025November 2025 month summary focused on delivering feature-rich firmware improvements, strengthening reliability, and modernizing the build-and-deploy pipeline. Key feature work delivered includes SWS Bringup and Driver Interface with Buck2-build integration, new userInput/driverInput modules, a driver request interface, and migration of STW driver controls into the torque manager to enable robust vehicle state transitions and torque command handling across CAN messages. Major reliability and safety hardening encompassed: conUDS receive timeout increase for high-load reliability, OTA Agent stability fixes, and CAN-Bridge/BMS safety enhancements to prevent fault cascades during OTA and ensure safe recovery; a set of related hardening commits also addressed side effects and mapping fixes (e.g., SWS GPIO handling and BL CAN_SLEEP behavior). Build modernization and CI improvements were achieved through Buck2-based reorganizations, integration of SWS into builds, and removal of macOS 13 CI support to reduce fragility and streamline pipelines. Additional stabilization work included NVM init/cleanup fixes to reduce lifecycle bugs. Technologies and skills demonstrated include Buck2, SWS, yamcan, torque manager integration, CAN message choreography, and release-stage CI optimization, all contributing to higher platform reliability, faster iteration cycles, and safer OTA/BMS operations.
October 2025
22 Commits • 10 Features
Oct 1, 20252025-10 monthly summary for concordia-fsae/firmware: Focus on reliability, diagnostics, and deployment, delivering measurable business value including improved field uptime, faster update cycles, and richer telemetry. Key work spans BMSB sensor accuracy fixes, diagnostics/stack monitoring, OTA agent readiness, and build/deploy workflow improvements.
22 Commits • 10 Features
Oct 1, 20252025-10 monthly summary for concordia-fsae/firmware: Focus on reliability, diagnostics, and deployment, delivering measurable business value including improved field uptime, faster update cycles, and richer telemetry. Key work spans BMSB sensor accuracy fixes, diagnostics/stack monitoring, OTA agent readiness, and build/deploy workflow improvements.
October 2025
September 2025
53 Commits • 25 Features
Sep 1, 2025September 2025 monthly summary for concordia-fsae/firmware focused on delivering cross-component build, CAN, UDS, and power-management improvements, while tightening build automation and release readiness. Highlights include Buck2 integration across firmware components, a multi-threaded CAN bridge with DBC parsing and UI enhancements, conUDS enhancements with batch Buck2 deployment and deployment reporting, and vcrear/vcpdu power-management improvements. Major reliability fixes addressed code-generation linkscript processing, tester-present timing during app download, and CFR25-target issues in Buck2, along with CANIO signal hygiene.
September 2025
53 Commits • 25 Features
Sep 1, 2025September 2025 monthly summary for concordia-fsae/firmware focused on delivering cross-component build, CAN, UDS, and power-management improvements, while tightening build automation and release readiness. Highlights include Buck2 integration across firmware components, a multi-threaded CAN bridge with DBC parsing and UI enhancements, conUDS enhancements with batch Buck2 deployment and deployment reporting, and vcrear/vcpdu power-management improvements. Major reliability fixes addressed code-generation linkscript processing, tester-present timing during app download, and CFR25-target issues in Buck2, along with CANIO signal hygiene.
August 2025
37 Commits • 17 Features
Aug 1, 2025August 2025 was focused on strengthening reliability, integration, and performance across the firmware stack (concordia-fsae/firmware). Key work spanned BMSW improvements, YamCAN bridging, robust RTOS task sharing, targeted CAN network fixes, and power management enhancements, delivering measurable business value in signaling reliability, diagnostics, and cross-module communication.
37 Commits • 17 Features
Aug 1, 2025August 2025 was focused on strengthening reliability, integration, and performance across the firmware stack (concordia-fsae/firmware). Key work spanned BMSW improvements, YamCAN bridging, robust RTOS task sharing, targeted CAN network fixes, and power management enhancements, delivering measurable business value in signaling reliability, diagnostics, and cross-module communication.
August 2025
May 2025
1 Commits
May 1, 2025May 2025: Firmware stability and configuration reliability improvements focused on bootloader configurations for STM32F1. Key deliverable: corrected variants.yaml to ensure accurate component identification and selection. This month centered on a targeted bug fix rather than feature work, reducing risk of incorrect flashing and bootloader misbehavior.
May 2025
1 Commits
May 1, 2025May 2025: Firmware stability and configuration reliability improvements focused on bootloader configurations for STM32F1. Key deliverable: corrected variants.yaml to ensure accurate component identification and selection. This month centered on a targeted bug fix rather than feature work, reducing risk of incorrect flashing and bootloader misbehavior.
April 2025
7 Commits • 3 Features
Apr 1, 2025April 2025 firmware monthly summary for concordia-fsae/firmware: Delivered four key updates driving reliability and safety: Digital Input Driver Enhancements with configurable active states; Fault detection refinement for TPS_20xx inputs; Vehicle State Management System introducing INIT, ON_GLV, ON_HV, TS_RUN with CAN-driven transitions; and BMSB Output Drivers & CAN Signaling Modernization for status indicators, precharge, and LED signals. These changes improve fault visibility, state-transition safety, and real-time CAN signaling, delivering business value and enabling safer vehicle operations.
7 Commits • 3 Features
Apr 1, 2025April 2025 firmware monthly summary for concordia-fsae/firmware: Delivered four key updates driving reliability and safety: Digital Input Driver Enhancements with configurable active states; Fault detection refinement for TPS_20xx inputs; Vehicle State Management System introducing INIT, ON_GLV, ON_HV, TS_RUN with CAN-driven transitions; and BMSB Output Drivers & CAN Signaling Modernization for status indicators, precharge, and LED signals. These changes improve fault visibility, state-transition safety, and real-time CAN signaling, delivering business value and enabling safer vehicle operations.
April 2025
March 2025
27 Commits • 19 Features
Mar 1, 2025March 2025 saw significant hardware-software integration and quality improvements across concordia-fsae/firmware. Key governance and reliability enhancements were delivered, alongside broad driver bringups and architectural improvements that increase hardware compatibility, stability, and testability. Notable work includes introducing a standard PR template, generalizing sensor and ADC code, bringing up the TI TPS20XX HSD driver and associated timers, configuring TPS2062 power management for VCFront/VCRear, enabling cooling integration, and laying groundwork for component-specific pre-execution hooks. These efforts reduce integration risk, improve data accuracy, and accelerate future feature delivery.
March 2025
27 Commits • 19 Features
Mar 1, 2025March 2025 saw significant hardware-software integration and quality improvements across concordia-fsae/firmware. Key governance and reliability enhancements were delivered, alongside broad driver bringups and architectural improvements that increase hardware compatibility, stability, and testability. Notable work includes introducing a standard PR template, generalizing sensor and ADC code, bringing up the TI TPS20XX HSD driver and associated timers, configuring TPS2062 power management for VCFront/VCRear, enabling cooling integration, and laying groundwork for component-specific pre-execution hooks. These efforts reduce integration risk, improve data accuracy, and accelerate future feature delivery.
February 2025
12 Commits • 7 Features
Feb 1, 2025February 2025 performance summary for concordia-fsae/firmware focused on delivering robust CAN data capabilities, foundational Vehicle Control bring-up, and maintainability improvements that reduce risk and accelerate distribution. The work spans feature delivery, critical bug fixes, and architecture refinements that drive business value in reliability, data integrity, and deployment efficiency.
12 Commits • 7 Features
Feb 1, 2025February 2025 performance summary for concordia-fsae/firmware focused on delivering robust CAN data capabilities, foundational Vehicle Control bring-up, and maintainability improvements that reduce risk and accelerate distribution. The work spans feature delivery, critical bug fixes, and architecture refinements that drive business value in reliability, data integrity, and deployment efficiency.
February 2025
January 2025
13 Commits • 6 Features
Jan 1, 2025January 2025 monthly summary for concordia-fsae/firmware: Focused on strengthening real-time CAN networking, expanding hardware support, and improving build and CI reliability to accelerate delivery and reduce risk.
January 2025
13 Commits • 6 Features
Jan 1, 2025January 2025 monthly summary for concordia-fsae/firmware: Focused on strengthening real-time CAN networking, expanding hardware support, and improving build and CI reliability to accelerate delivery and reduce risk.
November 2024
9 Commits • 3 Features
Nov 1, 2024November 2024 highlights for concordia-fsae/firmware: Delivered a major CAN subsystem modernization with centralized ID management, generated network definitions, and a shared CANIO layer, enabling scalable multi-node configurations and more reliable RX/TX flows. Implemented NVM Hard Reset subcommand for robust non-volatile memory handling with logging and result checks. Added CI automation with CFR24 build workflow to validate PRs and streamline builds via GitHub Actions and SCons environment handling.
9 Commits • 3 Features
Nov 1, 2024November 2024 highlights for concordia-fsae/firmware: Delivered a major CAN subsystem modernization with centralized ID management, generated network definitions, and a shared CANIO layer, enabling scalable multi-node configurations and more reliable RX/TX flows. Implemented NVM Hard Reset subcommand for robust non-volatile memory handling with logging and result checks. Added CI automation with CFR24 build workflow to validate PRs and streamline builds via GitHub Actions and SCons environment handling.
November 2024
October 2024
2 Commits • 2 Features
Oct 1, 20242024-10 Monthly Summary for concordia-fsae/firmware: Delivered two core capabilities that improve in-field ECU maintenance and diagnostics, with a focus on reliability, usability, and business value. The work strengthens ECU update workflows, expands diagnostic access, and enhances error handling, enabling faster issue resolution and reduced downtime.
October 2024
2 Commits • 2 Features
Oct 1, 20242024-10 Monthly Summary for concordia-fsae/firmware: Delivered two core capabilities that improve in-field ECU maintenance and diagnostics, with a focus on reliability, usability, and business value. The work strengthens ECU update workflows, expands diagnostic access, and enhances error handling, enabling faster issue resolution and reduced downtime.
Activity
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Quality Metrics
Correctness88.0%
Maintainability84.6%
Architecture84.2%
Performance81.4%
AI Usage20.6%
Skills & Technologies
Programming Languages
AssemblyBUCKBashBuckCC++Git ConfigurationMakoMarkdownNone
Technical Skills
ADCAPI DevelopmentAPI developmentARM ArchitectureAnalog InputAsynchronous ProgrammingAutomotive DiagnosticsBMS designBattery Management SystemsBootloader DevelopmentBuck2Build AutomationBuild SystemBuild System ConfigurationBuild System Migration
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