{"id":43531910,"url":"https://github.com/stas2k/galspanic","last_synced_at":"2026-02-03T15:47:46.775Z","repository":{"id":43843802,"uuid":"294514680","full_name":"stas2k/galspanic","owner":"stas2k","description":"X68000 RAM Expansion","archived":false,"fork":false,"pushed_at":"2022-03-18T08:50:21.000Z","size":1507,"stargazers_count":24,"open_issues_count":2,"forks_count":8,"subscribers_count":7,"default_branch":"master","last_synced_at":"2023-03-10T06:41:27.602Z","etag":null,"topics":["gal","galasm","kicad","ram","retro","sram","x68000"],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/stas2k.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2020-09-10T20:24:41.000Z","updated_at":"2023-02-16T19:33:47.000Z","dependencies_parsed_at":"2022-08-31T15:30:36.493Z","dependency_job_id":null,"html_url":"https://github.com/stas2k/galspanic","commit_stats":null,"previous_names":[],"tags_count":null,"template":null,"template_full_name":null,"purl":"pkg:github/stas2k/galspanic","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stas2k%2Fgalspanic","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stas2k%2Fgalspanic/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stas2k%2Fgalspanic/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stas2k%2Fgalspanic/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/stas2k","download_url":"https://codeload.github.com/stas2k/galspanic/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/stas2k%2Fgalspanic/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29048341,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-03T15:43:47.601Z","status":"ssl_error","status_checked_at":"2026-02-03T15:43:46.709Z","response_time":96,"last_error":"SSL_read: 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":["gal","galasm","kicad","ram","retro","sram","x68000"],"created_at":"2026-02-03T15:47:45.995Z","updated_at":"2026-02-03T15:47:46.767Z","avatar_url":"https://github.com/stas2k.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# GALSPanic - X68000 SRAM Expansion\n\n![Board design](img/board_design.png)\n\nThis repo contains Kicad sources for a Static RAM expansion board for Sharp X68000 personal computer.\nPlease use latest git version of kicad to open the project, or version \u003e6.0 once it gets released.\n\n## Design\nThe expansion is implemented using 2MB static RAM chips to make the design simpler.\nAddress decoder is implemented using a ATF22V10 GAL chip. Source code for it is available in `gal/` directory.\n\nBoard dimensions are taken from the [midiori](https://github.com/tdaede/midiori) project.\n\nThe board can support up to 10MB of memory and assumes you already have 2MB built in.\n\nA fourth address line is routed and the board can support 1MB systems by masking half of the first memory chip. However, the GAL equations are not written for this case. Let me know if you have such a system.\n\n## Compatibility\nFollowing systems have been reported to work:\n- Super\n- Expert\n- ACE\n- XVI\n- Pro\n- 68030\n\n## GAL Equations\n\nYou can compile `.pld` GAL equations using [GALasm](https://github.com/daveho/GALasm).\n\n## Board production\n\nI use JLCPCB with the following options:\n* PCB Thickness: 1.6\n* Surface Finish: ENIG-RoHS\n* Gold Fingers: Yes\n* 45°finger chamfered: Yes\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstas2k%2Fgalspanic","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fstas2k%2Fgalspanic","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstas2k%2Fgalspanic/lists"}