UVicSatelliteDesign/COMP_SLIP-OBC
Feb 2025 – Oct 2025
9 Months active
Languages Used
C
Technical Skills
Embedded SystemsReal-Time SystemsRTOSTask ManagementC ProgrammingCommunication Protocols
Sydney Macdonald
PROFILE
Sydney Macdonald
Sydney MacDonald developed core real-time communication and telemetry features for the UVicSatelliteDesign/COMP_SLIP-OBC repository, focusing on embedded C and RTOS-based systems. Over nine months, Sydney architected a modular Time-Triggered Communication framework, centralized packet generation, and robust data transmission with acknowledgment and retransmission logic. The work included integrating SPI communication, refining task management, and improving error handling to ensure reliable subsystem messaging. Sydney addressed build stability and timing reliability by restructuring timer management and cleaning up FreeRTOS configurations. The resulting codebase demonstrates depth in embedded systems, firmware development, and data handling, supporting maintainable, fault-tolerant onboard communications for satellite operations.
Overall Statistics
Feature vs Bugs
69%Features
Repository Contributions
36Total
Bugs
4
Commits
36
Features
9
Lines of code
1,562
Activity Months9
Your Network
9 people
Work History
October 2025
1 Commits
Oct 1, 2025October 2025: Focused on stability and code cleanliness in UVicSatelliteDesign/COMP_SLIP-OBC. Implemented a timer initialization fix and FreeRTOSConfig cleanup, reducing compiler warnings and improving reliability of the timer subsystem. The changes enhance build quality and deployment stability for onboard timing operations.
1 Commits
Oct 1, 2025October 2025: Focused on stability and code cleanliness in UVicSatelliteDesign/COMP_SLIP-OBC. Implemented a timer initialization fix and FreeRTOSConfig cleanup, reducing compiler warnings and improving reliability of the timer subsystem. The changes enhance build quality and deployment stability for onboard timing operations.
October 2025
September 2025
1 Commits
Sep 1, 2025September 2025: Focused on stabilizing build and maintainability for UVicSatelliteDesign/COMP_SLIP-OBC; no new features released this month; major fix centralized retransmission timer definitions in main.h to resolve compile errors, moving timer handle and callback from ttc.h. This enables reliable builds and prepares for upcoming feature work. Commit 2262e3ed137d975f02d9b047b97b130d8fc4c794.
September 2025
1 Commits
Sep 1, 2025September 2025: Focused on stabilizing build and maintainability for UVicSatelliteDesign/COMP_SLIP-OBC; no new features released this month; major fix centralized retransmission timer definitions in main.h to resolve compile errors, moving timer handle and callback from ttc.h. This enables reliable builds and prepares for upcoming feature work. Commit 2262e3ed137d975f02d9b047b97b130d8fc4c794.
August 2025
1 Commits
Aug 1, 2025August 2025: Delivered crucial reliability and correctness improvements to the COMP_SLIP-OBC payload handling. Resolved a naming conflict in payload type definitions by renaming NOMINAL to REQ_NOMINAL and LOW_POWER to REQ_LOW_POWER, and implemented a timer stop mechanism to prevent timing errors when sending subsequent packets. These changes enhance mission reliability and reduce risk of misinterpreting payload data.
1 Commits
Aug 1, 2025August 2025: Delivered crucial reliability and correctness improvements to the COMP_SLIP-OBC payload handling. Resolved a naming conflict in payload type definitions by renaming NOMINAL to REQ_NOMINAL and LOW_POWER to REQ_LOW_POWER, and implemented a timer stop mechanism to prevent timing errors when sending subsequent packets. These changes enhance mission reliability and reduce risk of misinterpreting payload data.
August 2025
July 2025
20 Commits • 3 Features
Jul 1, 2025July 2025 (UVicSatelliteDesign/COMP_SLIP-OBC): Delivered an end-to-end upgrade of the data link path and RTOS integration. Key features include robust communication state management with COMM_NOMINAL/COMM_LOST and ACK-based retransmission gating; a new RTOS-aligned receive task with robust default packet handling; and a complete TTC/CC12x packet generation, buffering, and transmission pipeline with length-prefixing, sequencing, camera data handling, and SPI/CC12x transmission refinements. Major reliability improvements were achieved by aligning interfaces, updating packet length handling, and removing undefined references. These changes collectively improve data integrity, transmission efficiency, and system resilience, enabling higher-throughput, fault-tolerant comms for the OBC.
July 2025
20 Commits • 3 Features
Jul 1, 2025July 2025 (UVicSatelliteDesign/COMP_SLIP-OBC): Delivered an end-to-end upgrade of the data link path and RTOS integration. Key features include robust communication state management with COMM_NOMINAL/COMM_LOST and ACK-based retransmission gating; a new RTOS-aligned receive task with robust default packet handling; and a complete TTC/CC12x packet generation, buffering, and transmission pipeline with length-prefixing, sequencing, camera data handling, and SPI/CC12x transmission refinements. Major reliability improvements were achieved by aligning interfaces, updating packet length handling, and removing undefined references. These changes collectively improve data integrity, transmission efficiency, and system resilience, enabling higher-throughput, fault-tolerant comms for the OBC.
June 2025
6 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for UVicSatelliteDesign/COMP_SLIP-OBC focusing on delivering robust packet handling and reliable data transmission frameworks, with measurable improvements to telemetry integrity and mission readiness. Highlights include the introduction of a high-level packet receive/acknowledgment path and timer-driven retransmission logic, along with targeted error handling to reduce data loss and unnecessary retries. The work demonstrates strong embedded systems design, clear API/params updates, and maintainability improvements that support ongoing development and operations.
6 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for UVicSatelliteDesign/COMP_SLIP-OBC focusing on delivering robust packet handling and reliable data transmission frameworks, with measurable improvements to telemetry integrity and mission readiness. Highlights include the introduction of a high-level packet receive/acknowledgment path and timer-driven retransmission logic, along with targeted error handling to reduce data loss and unnecessary retries. The work demonstrates strong embedded systems design, clear API/params updates, and maintainability improvements that support ongoing development and operations.
June 2025
May 2025
1 Commits • 1 Features
May 1, 2025Summary for May 2025: Delivered a foundational refactor and feature delivery for UVicSatelliteDesign/COMP_SLIP-OBC by centralizing packet generation. Introduced a generatepacket function to replace direct transmit calls in ttc.c, consolidating packet creation for camera data, errors, low power warnings, and GPS data. This improves reliability, consistency, and maintainability of the data path. No major bugs were logged this month; the work focused on refactoring and extending the notification/telemetry pipeline to reduce future risk and enable scalable improvements.
May 2025
1 Commits • 1 Features
May 1, 2025Summary for May 2025: Delivered a foundational refactor and feature delivery for UVicSatelliteDesign/COMP_SLIP-OBC by centralizing packet generation. Introduced a generatepacket function to replace direct transmit calls in ttc.c, consolidating packet creation for camera data, errors, low power warnings, and GPS data. This improves reliability, consistency, and maintainability of the data path. No major bugs were logged this month; the work focused on refactoring and extending the notification/telemetry pipeline to reduce future risk and enable scalable improvements.
April 2025
4 Commits • 1 Features
Apr 1, 2025April 2025: UVicSatelliteDesign/COMP_SLIP-OBC — Delivered foundational camera data handling and transmission framework with a notification system scaffold and GPS data transmission hooks; added header-level transmit camera function and wired dummy calls for testability. Fixed GPS Data Handling Reliability Bug (Zero GPS Result), improving notification accuracy and system reliability. These efforts establish a maintainable telemetry pipeline, enhance mission readiness, and demonstrate proficiency in C/C++ module design, telemetry interfaces, and test scaffolding.
4 Commits • 1 Features
Apr 1, 2025April 2025: UVicSatelliteDesign/COMP_SLIP-OBC — Delivered foundational camera data handling and transmission framework with a notification system scaffold and GPS data transmission hooks; added header-level transmit camera function and wired dummy calls for testability. Fixed GPS Data Handling Reliability Bug (Zero GPS Result), improving notification accuracy and system reliability. These efforts establish a maintainable telemetry pipeline, enhance mission readiness, and demonstrate proficiency in C/C++ module design, telemetry interfaces, and test scaffolding.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025: Delivered GPS data retrieval and OBC notification capability within the TTC main task for UVicSatelliteDesign/COMP_SLIP-OBC. Implemented notification handling logic, including CAMERA_ERROR checks and processing of GPS data requests. On successful retrieval, the system now signals GPS_READY to the OBC task; otherwise GPS_ERROR, enabling faster fault detection and recovery.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025: Delivered GPS data retrieval and OBC notification capability within the TTC main task for UVicSatelliteDesign/COMP_SLIP-OBC. Implemented notification handling logic, including CAMERA_ERROR checks and processing of GPS data requests. On successful retrieval, the system now signals GPS_READY to the OBC task; otherwise GPS_ERROR, enabling faster fault detection and recovery.
February 2025
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for UVicSatelliteDesign/COMP_SLIP-OBC focused on introducing the Time-Triggered Communication (TTC) framework scaffolding to enable deterministic real-time messaging for OBC subsystems. Implemented core headers and interfaces and laid down scaffolding files to support modular, time-driven inter-component communication.
1 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for UVicSatelliteDesign/COMP_SLIP-OBC focused on introducing the Time-Triggered Communication (TTC) framework scaffolding to enable deterministic real-time messaging for OBC subsystems. Implemented core headers and interfaces and laid down scaffolding files to support modular, time-driven inter-component communication.
February 2025
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Quality Metrics
Correctness82.0%
Maintainability83.4%
Architecture78.4%
Performance75.8%
AI Usage21.2%
Skills & Technologies
Programming Languages
C
Technical Skills
C ProgrammingCommunication ProtocolsData HandlingData StructuresEmbedded SystemsEmbedded Systems DevelopmentFirmware DevelopmentFlash Memory ManagementHardware InteractionNetworkingRTOSReal-Time Operating SystemsReal-Time SystemsReal-time Operating SystemsSPI Communication
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