
Sebastian Rauch contributed to the GSI-CS-CO/bel_projects repository, focusing on embedded systems and FPGA development using C, VHDL, and Makefile. Over four months, he implemented hardware control features such as ComExpress power button integration and multi-core firmware initialization, improving power management and startup reliability. He enhanced build robustness by refining memory map handling and addressed hardware configuration by aligning SYS_PLL4 output frequencies to ASMI core specifications. Sebastian also configured GXB transceiver voltages for PCIe, ensuring signal integrity. His work demonstrated depth in hardware-software integration, addressing both feature development and critical bug fixes across firmware, build systems, and hardware design.

In July 2025, delivered a focused hardware alignment fix in bel_projects to ensure SYS_PLL4 outputs comply with the ASMI core spec. The change aligns the sys_pll4 output with the documented frequency (25MHz) per ASMI core manual 18.1, replacing the previous 50MHz setting. The work involved a VHDL update in monster.vhd and a targeted commit (cb871d4a1c1cf307aff7ee4dd6703c5df8e7482f) applying the ASMI-aligned frequency change. This fix reduces configuration drift, mitigates production risk, and streamlines integration with the ASMI standard for future hardware deployments.
In July 2025, delivered a focused hardware alignment fix in bel_projects to ensure SYS_PLL4 outputs comply with the ASMI core spec. The change aligns the sys_pll4 output with the documented frequency (25MHz) per ASMI core manual 18.1, replacing the previous 50MHz setting. The work involved a VHDL update in monster.vhd and a targeted commit (cb871d4a1c1cf307aff7ee4dd6703c5df8e7482f) applying the ASMI-aligned frequency change. This fix reduces configuration drift, mitigates production risk, and streamlines integration with the ASMI standard for future hardware deployments.
June 2025 monthly summary focusing on key accomplishments and impact for the bel_projects repository in the GSI-CS-CO project.
June 2025 monthly summary focusing on key accomplishments and impact for the bel_projects repository in the GSI-CS-CO project.
April 2025 monthly summary for bel_projects: Implemented FG Firmware Enablement and Multi-Core Initialization and improved build robustness for SCU4SLIM. The FG feature re-enabled firmware with a 2-core initialization path, updated Makefile (SHARED_SIZE, USRCPUCLK, PATHSCU), added fg.c, and adjusted VHDL to support two cores and updated init file naming. The SCU4SLIM fix ensures the correct shared memory header is used, preventing build/runtime errors. These changes reduce deployment risk, improve startup performance, and lay groundwork for future multi-core scalability.
April 2025 monthly summary for bel_projects: Implemented FG Firmware Enablement and Multi-Core Initialization and improved build robustness for SCU4SLIM. The FG feature re-enabled firmware with a 2-core initialization path, updated Makefile (SHARED_SIZE, USRCPUCLK, PATHSCU), added fg.c, and adjusted VHDL to support two cores and updated init file naming. The SCU4SLIM fix ensures the correct shared memory header is used, preventing build/runtime errors. These changes reduce deployment risk, improve startup performance, and lay groundwork for future multi-core scalability.
March 2025 deliverables focused on strengthening power management workflows and increasing processing capacity in bel_projects. Implemented key hardware-control integrations and prepared the path for safer power-off and reset sequences, while also boosting throughput for memory-intensive tasks.
March 2025 deliverables focused on strengthening power management workflows and increasing processing capacity in bel_projects. Implemented key hardware-control integrations and prepared the path for safer power-off and reset sequences, while also boosting throughput for memory-intensive tasks.
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