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returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["accelerator","dsa","hsi-classification","hyperspectral","obi","register-interface","systemverilog","vsim","x-heep","xaif","xsim"],"created_at":"2025-10-08T16:43:38.238Z","updated_at":"2026-02-14T22:32:21.383Z","avatar_url":"https://github.com/ppalazon.png","language":"SystemVerilog","funding_links":[],"categories":[],"sub_categories":[],"readme":"# HSpecID-X: A Hyperspectral Pixel Classifier Accelerator for X-HEEP \n\n[![Documentation Status](https://readthedocs.org/projects/hspecid-x/badge/?version=latest)](https://hspecid-x.readthedocs.io/en/latest/)\n[![License: CERN-OHL-P v2](https://img.shields.io/badge/License-CERN--OHL--P--v2-blue.svg)](https://ohwr.org/cern_ohl_p_v2.txt)\n\n\u003cp align=\"center\"\u003e\n  \u003cimg src=\"https://raw.githubusercontent.com/ppalazon/hspecid-x/main/docs/figures/hspecid-x.png\" alt=\"HSpecID-X logo\" width=\"50%\"\u003e\n\u003c/p\u003e\n\nThe main objective of this project is the design at the **RTL** level and the\nfunctional verification of a **domain-specific accelerator (DSA)** for the\nclassification of **hyperspectral pixels (HSPs)** based on reference signatures\ncontained in spectral libraries. \n\nThis accelerator will be adapted for integration into a **System-on-Chip (SoC)**\nbased on **X-HEEP**, targeting *on-edge* and *on-board* environments, where\nlocal data processing is critical.\n\nThe accelerator performs the computation of the **Mean Squared Error (MSE)**\nbetween the captured HSP and the signatures in the library in order to determine\nwhich spectral signature best matches the captured data.\n\nMore specifically, the technical objectives are:\n\n- **Develop** a hardware accelerator in **SystemVerilog** that implements the\n  MSE algorithm for HSP processing, using *pipeline* and *dataflow*\n  architectures.\n- **Integrate** the accelerator into the **X-HEEP** platform, ensuring\n  connectivity with its standard interfaces.\n- **Evaluate** performance through functional simulation in **Vivado (xsim)**\n  and **Siemens QuestaSim (vsim)**, with signal timing analysis (*waveforms*)\n  using **GTKWave** and **QuestaSim**, and by determining the number of cycles\n  required to process each HSP.\n- **Verify and validate** the design through directed and random *testbenches*,\n  **SystemVerilog Assertions (SVA)**, and coverage checks.\n- **Optimize** the design to maximize configurability at both software and RTL\n  levels, promote code reuse, and enable future scalability, as well as\n  synthesis on **FPGA** or **ASIC**.\n- **Publish** the design as an **open-hardware** project so that the RTL code\n  can be reused by other projects through the **FuseSoC** and **Bender** tools.\n\nFull docs are available at:\n[hspecid-x.readthedocs.io](https://hspecid-x.readthedocs.io).\n\n## License\n\nThis project is licensed under the **CERN-OHL-P v2** (Permissive).  \nYou are free to use, modify, and distribute this design, provided that the\ncopyright notice and license text are retained.  \n\nSee the [LICENSE](./LICENSE) file for details.  \nMore information about CERN-OHL-P v2 can be found at the [CERN OHL\nwebsite](https://cern-ohl.web.cern.ch/).\n\n## Third-Party Components\n\n- **common_cells** – licensed under [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).\n- **register_interface** – licensed under [Solderpad Hardware License v0.51](http://solderpad.org/licenses/SHL-0.51/).\n- **obi** – [Solderpad Hardware License v0.51](http://solderpad.org/licenses/SHL-0.51/).\n\nOriginal licenses and attributions are retained in their respective files and headers.","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fppalazon%2Fhspecid-x","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fppalazon%2Fhspecid-x","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fppalazon%2Fhspecid-x/lists"}