05-树莓派-基于Wringpi的树莓派PWM_RGB_彩虹灯C程序【外设接口对应&编译过程&git仓库地址&实际演示】

本文链接：https://blog.youkuaiyun.com/weixin_47205363/article/details/131842403

一.Git仓库地址

1.Address:

https://github.com/WiringPi/WiringPi //git到本地即可，目前作者最新版本是2.70

wish@raspberrypi:/WiringPi/wiringPi $ gpio -v
gpio version: 2.70
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
  Type: Pi 4B, Revision: 05, Memory: 8192MB, Maker: Sony
  * Device tree is enabled.
  *--> Raspberry Pi 4 Model B Rev 1.5
  * This Raspberry Pi supports user-level GPIO access.
wish@raspberrypi:/WiringPi/wiringPi $

2.SDK介绍

wish@raspberrypi:/WiringPi $ ls
build  COPYING.LESSER  debian  debian-template  devLib  examples  gpio  INSTALL  newVersion  People  pins  README.md  update  VERSION  version.h  wiringPi  wiringPiD
wish@raspberrypi:/WiringPi $

1)WiringPi_SDK：

在软件开发中，SDK（Software Development Kit）是一组工具、库和文档的集合，用于帮助开发人员创建特定平台或技术的应用程序。

2)Build:

构建配置：构建文件用于配置项目的构建过程，包括编译源代码、链接库文件、生成可执行文件等。它定义了编译器选项、依赖关系、目标文件路径等构建相关的设置。

自动化构建：构建文件可以用于自动化构建过程，通过简单的命令或脚本，可以执行一系列构建步骤，从而减少手动操作的工作量。这样可以提高开发效率，并确保每次构建都是一致的。

依赖管理：构建文件可以指定项目所依赖的其他库或模块，以及它们的版本要求。这样，在构建过程中，构建工具可以自动下载、编译和链接这些依赖项，确保项目能够正确地使用它们。

跨平台支持：构建文件可以针对不同的操作系统和平台进行配置，以适应不同的开发环境。通过构建文件，可以定义不同平台上的编译器选项、库文件路径等，从而实现跨平台的开发和构建。

3)devLib

已经支持的设备相关源代码和链接库

4)examples

示例代码
Makefile

5)INSTALL

For help and support see:

* https://github.com/WiringPi/WiringPi/issues
* https://discord.gg/SM4WUVG

* wiringPi originally created by Gordon Henderson
* https://projects.drogon.net/

6)newVersion

  # This file is part of wiringPi:
   # A "wiring" library for the Raspberry Pi

   # wiringPi is free software: you can redistribute it and/or modify
   # it under the terms of the GNU Lesser General Public License as published by
   # the Free Software Foundation, either version 3 of the License, or
   # (at your option) any later version.
   #
   # wiringPi is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   # GNU Lesser General Public License for more details.
   #
   # You should have received a copy of the GNU Lesser General Public License
   # along with wiringPi. If not, see <http://www.gnu.org/licenses/>.

7)People

Just a quick note to some people who've provided help, suggestions,
bug-fixes, etc. along the way...

8)wiringPi

源码

9)Others

二.硬件接口对应

1按照wringpi的对应关系

const int Red_Pin=1; //wPi中的1

const int Green_Pin=4; //wPi中的4

const int Blue_Pin=5; //wPi中的5


wish@raspberrypi:/WiringPi/examples $ gpio readall
 +-----+-----+----