{"id":17529622,"url":"https://github.com/nullobject/de0-nano-examples","last_synced_at":"2026-01-27T15:01:22.514Z","repository":{"id":66259095,"uuid":"260602713","full_name":"nullobject/de0-nano-examples","owner":"nullobject","description":"Some example circuits written in VHDL for Terasic DE0-Nano FPGA board.","archived":false,"fork":false,"pushed_at":"2025-05-18T12:01:17.000Z","size":181,"stargazers_count":9,"open_issues_count":0,"forks_count":1,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-05-19T02:11:19.817Z","etag":null,"topics":["de0-nano","fpga"],"latest_commit_sha":null,"homepage":null,"language":"VHDL","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/nullobject.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":".github/FUNDING.yml","license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null},"funding":{"github":null,"patreon":"nullobject","open_collective":null,"ko_fi":null,"tidelift":null,"community_bridge":null,"liberapay":null,"issuehunt":null,"otechie":null,"custom":null}},"created_at":"2020-05-02T02:59:08.000Z","updated_at":"2024-10-04T03:14:56.000Z","dependencies_parsed_at":"2025-05-19T02:10:30.008Z","dependency_job_id":"8d0ddbb1-e543-47f8-b731-d96eb4c552b4","html_url":"https://github.com/nullobject/de0-nano-examples","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/nullobject/de0-nano-examples","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nullobject%2Fde0-nano-examples","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nullobject%2Fde0-nano-examples/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nullobject%2Fde0-nano-examples/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nullobject%2Fde0-nano-examples/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/nullobject","download_url":"https://codeload.github.com/nullobject/de0-nano-examples/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nullobject%2Fde0-nano-examples/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28815385,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-27T12:25:15.069Z","status":"ssl_error","status_checked_at":"2026-01-27T12:25:05.297Z","response_time":168,"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":["de0-nano","fpga"],"created_at":"2024-10-20T16:22:36.445Z","updated_at":"2026-01-27T15:01:22.490Z","avatar_url":"https://github.com/nullobject.png","language":"VHDL","readme":"# DE0-Nano Examples\n\nSome example circuits written in VHDL for [Terasic DE0-Nano FPGA board](https://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English\u0026CategoryNo=139\u0026No=593).\n\n## Prerequisites\n\nThe easiest way to build these circuits is using make:\n\n    $ sudo apt install make\n\nYou will need to have the Quartus bin directory in your path, for example:\n\n    PATH=\"/opt/intelFPGA_lite/19.1/quartus/bin:$PATH\"\n\nSome examples also require the GNU Z80 assembler to be installed:\n\n    $ sudo apt install z80asm\n\n## Getting Started\n\nTo build an example, change to the directory of the circuit and run make:\n\n    $ cd counter\n    $ make build program\n\n## Examples\n\n### Counter\n\nThis example defines a simple circuit to increment a counter every 100ms. The binary value of the counter is displayed on the LEDs.\n\n### Z80\n\nThis example runs a small program on a Z80 softcore microprocessor to blink the LEDs.\n\nEven though the [blink program](https://github.com/nullobject/de0-nano-examples/blob/master/z80/rom/blink.asm) is quite simple, the circuit must define the basic components of a computer in order to execute it. The circuit contains ROM, RAM, and a CPU.\n\n### SDRAM\n\nThis example loads some values into the SDRAM, and then reads the values back out again, displaying them on the LEDs.\n","funding_links":["https://patreon.com/nullobject"],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnullobject%2Fde0-nano-examples","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnullobject%2Fde0-nano-examples","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnullobject%2Fde0-nano-examples/lists"}