{"id":21644352,"url":"https://github.com/vectorxxxx/15-c51","last_synced_at":"2025-03-19T11:06:56.404Z","repository":{"id":233897230,"uuid":"787990965","full_name":"vectorxxxx/15-C51","owner":"vectorxxxx","description":"51单片机入门教程-2020版 程序全程纯手打 从零开始入门","archived":false,"fork":false,"pushed_at":"2024-07-28T15:34:41.000Z","size":2256,"stargazers_count":0,"open_issues_count":0,"forks_count":1,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-01-25T04:27:38.592Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"https://www.bilibili.com/video/BV1RB4y1i71i","language":"C","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/vectorxxxx.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"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}},"created_at":"2024-04-17T15:11:02.000Z","updated_at":"2024-07-28T15:34:46.000Z","dependencies_parsed_at":"2024-07-28T17:02:36.046Z","dependency_job_id":null,"html_url":"https://github.com/vectorxxxx/15-C51","commit_stats":null,"previous_names":["vectorxxxx/15-c51"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vectorxxxx%2F15-C51","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vectorxxxx%2F15-C51/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vectorxxxx%2F15-C51/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vectorxxxx%2F15-C51/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/vectorxxxx","download_url":"https://codeload.github.com/vectorxxxx/15-C51/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":244413458,"owners_count":20448710,"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":"2024-11-25T05:39:47.660Z","updated_at":"2025-03-19T11:06:56.379Z","avatar_url":"https://github.com/vectorxxxx.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"## 1、URXD、UTXD分别是什么？\n\nURXD 和 UTXD 是串口通信中常见的术语，分别表示串口通信中的接收端（Receive Data）和发送端（Transmit Data）。\n\n- URXD 代表串口通信接收数据端，用于接收从外部设备发送过来的数据；\n- UTXD 代表串口通信发送数据端，用于将数据发送到外部设备。\n\n在串口通信中，URXD 和 UTXD 负责数据的接收和发送，是串口通信中非常重要的概念。\n\n\n\n## 2、开漏输出模式和弱上拉模式的区别\n\n开漏输出和弱上拉模式都是数字电路中常用的输出模式，它们的区别主要体现在输出电平的控制和电流驱动能力上。\n\n1. 开漏输出（Open-Drain Output）：开漏输出是一种输出模式，输出管脚可以输出低电平（0V）或不输出电平（高阻态），而不能输出高电平（VDD）。在开漏输出模式下，输出管脚通常连接到一个外部上拉电阻，通过控制输出管脚的状态（输出低电平或高阻态），可以实现开关功能或者与其他器件的通信。\n\n2. 弱上拉模式（Weak Pull-Up Mode）：弱上拉模式是一种输出模式，输出管脚在不受外部干扰时会被上拉到高电平（VDD），但在外部有低电平信号输入时，输出管脚会被拉低到低电平。弱上拉模式通常用于减少功耗和提高抗干扰能力，适用于需要长时间保持高电平的场合。\n\n总的来说，开漏输出主要用于输出低电平信号，弱上拉模式则主要用于输出高电平信号，两者在电路设计和应用中有着不同的用途和特点。\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvectorxxxx%2F15-c51","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvectorxxxx%2F15-c51","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvectorxxxx%2F15-c51/lists"}