{"id":17046446,"url":"https://github.com/cpldcpu/usbasp-t","last_synced_at":"2025-04-12T15:31:20.973Z","repository":{"id":9207198,"uuid":"11017111","full_name":"cpldcpu/USBasp-t","owner":"cpldcpu","description":"USBasp for ATtiny85","archived":false,"fork":false,"pushed_at":"2022-05-23T18:15:18.000Z","size":496,"stargazers_count":33,"open_issues_count":0,"forks_count":16,"subscribers_count":7,"default_branch":"master","last_synced_at":"2025-03-26T10:05:11.662Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"Assembly","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/cpldcpu.png","metadata":{"files":{"readme":"Readme.md","changelog":"Changelog.txt","contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2013-06-28T05:54:03.000Z","updated_at":"2024-09-02T08:52:57.000Z","dependencies_parsed_at":"2022-09-19T20:53:44.284Z","dependency_job_id":null,"html_url":"https://github.com/cpldcpu/USBasp-t","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cpldcpu%2FUSBasp-t","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cpldcpu%2FUSBasp-t/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cpldcpu%2FUSBasp-t/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cpldcpu%2FUSBasp-t/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/cpldcpu","download_url":"https://codeload.github.com/cpldcpu/USBasp-t/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":248589482,"owners_count":21129624,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":[],"created_at":"2024-10-14T09:46:17.620Z","updated_at":"2025-04-12T15:31:20.234Z","avatar_url":"https://github.com/cpldcpu.png","language":"Assembly","funding_links":[],"categories":[],"sub_categories":[],"readme":"## micro - USBasp ##\n\nThis is a work in progress. \n\n* Port of USBasp to ATtiny 85\n* Design of optimized hardware\n\nWhy?\n\n* It's fun.\n* USBasp is a de-facto standard for small USB-AVR programmers. It's the only one to support TPI.\n* Porting it to ATtiny85 allows for a smaller and cheaper circuit. Cheaper MCU, no Xtal, etc...\n\nThis software is based on Thomas Fischl's USBasp. See readme.txt for original comments.\n\n### Status ####\n\nSoftware:\n\n* USBasp sucessfully compiles for the ATTiny85.\n* micronucleus works as a bootloader.\n* USB device is recognized as USBasp and communicates with AVRdude.\n* Software tested on microUSB hardware. Both TPI and SPI seem to work.\n\nHardware:\n\n* Revision 0.5 sent to OSH park for pcb manufacturing.\n* Update v1.1 done, ready for manufacturing.\n* Update 02/08/2013: All parts received, first device built.\n\n### Flashing\n\n* Flash micronucleus\n* Set the fuses as in thuis Makefile: HFUSE=0x5d, LFUSE=0xe1, EFUSE=0xfe\n* Flash the firmware with micronucleus\n\n### Hardware ###\n\nCircuit:  \n![Circuit](/hardware/u-usbasp-circuit.png)\n\nv1.1 PCB front side:  \n![V1.1 PCB front](/hardware/microusbasp_frontside.jpg)\n\nv1.1 PCB rear side:   \n![V1.1 PCB rear](/hardware/microusbasp_rearside.jpg)\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcpldcpu%2Fusbasp-t","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcpldcpu%2Fusbasp-t","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcpldcpu%2Fusbasp-t/lists"}