「[原创]通过Raspberry Pi(树莓派)的GPIO接口控制发光二极管/Control LED through the GPIO on Raspberry Pi」的评论 https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/ 最优化之路 Sun, 03 May 2020 12:28:22 +0000 hourly 1 https://wordpress.org/?v=6.9.4 评论者：learnhard https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-3094 Wed, 29 Jul 2015 16:07:57 +0000 http://www.codelast.com/?p=5155#comment-3094 回复给 donkey。

有root权限吗？安装了sudo程序吗（安装脚本中可能使用了）？
另外，最新版的WiringPi已经不是文章中所写的那样安装了，请阅读WiringPi自带的README.TXT文件

]]> 评论者：donkey https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-2772 Tue, 26 May 2015 02:35:51 +0000 http://www.codelast.com/?p=5155#comment-2772 make install 的时候
install: cannot change permissions of `/usr/local/lib': Operation not permitted
Makefile:83: recipe for target 'install' failed
make: *** [install] Error 1
这个样子了QAQ
求救。

]]> 评论者：learnhard https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-2092 Sat, 30 Aug 2014 02:45:19 +0000 http://www.codelast.com/?p=5155#comment-2092 回复给 x。

参考文中第【4】节

]]> 评论者：x https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-2091 Fri, 29 Aug 2014 01:37:43 +0000 http://www.codelast.com/?p=5155#comment-2091 hi, 执行 gcc led.c -o led -lwiringPi 时报错了:
led.c:l:22:fatal error:wringPi.h:No such file or directory.Compilation terminated.谢谢

]]> 评论者：windc https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-2086 Tue, 19 Aug 2014 04:09:56 +0000 http://www.codelast.com/?p=5155#comment-2086 回复给 learnhard。

谢谢，弄好了

]]> 评论者：learnhard https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-2084 Sun, 17 Aug 2014 16:43:05 +0000 http://www.codelast.com/?p=5155#comment-2084 回复给 windc。

尝试安装 libi2c-dev库，参考：
http://www.raspberrypi.org/forums/viewtopic.php?f=31&t=19680

]]> 评论者：windc https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-2083 Sun, 17 Aug 2014 08:01:05 +0000 http://www.codelast.com/?p=5155#comment-2083 hi, 执行 gcc led.c -o led -lwiringPi 时报错了，

/usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libwiringPi.so: undefined reference to `i2c_smbus_write_byte'
/usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libwiringPi.so: undefined reference to `i2c_smbus_read_byte'
/usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libwiringPi.so: undefined reference to `i2c_smbus_write_byte_data'
/usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libwiringPi.so: undefined reference to `i2c_smbus_write_word_data'
/usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libwiringPi.so: undefined reference to `i2c_smbus_read_word_data'
/usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libwiringPi.so: undefined reference to `i2c_smbus_read_byte_data'
collect2: ld returned 1 exit status

不知道是为什么呢

]]> 评论者：learnhard https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-1981 Fri, 09 May 2014 16:00:13 +0000 http://www.codelast.com/?p=5155#comment-1981 回复给 二三。

在树莓派上编译这段C程序并运行

]]> 评论者：二三 https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-1980 Fri, 09 May 2014 12:44:21 +0000 http://www.codelast.com/?p=5155#comment-1980 这个c语言的代码要写在哪里？

]]> 评论者：nlp12345 https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-1873 Mon, 24 Mar 2014 13:23:10 +0000 http://www.codelast.com/?p=5155#comment-1873 请问要怎么用GPIO来实现触发遥控器的按钮？

]]> 评论者：lcy https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-1495 Sun, 18 Aug 2013 07:12:39 +0000 http://www.codelast.com/?p=5155#comment-1495 回复给 崔氏小龙。

+1

]]> 评论者：··· https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-1173 Sat, 16 Mar 2013 05:31:15 +0000 http://www.codelast.com/?p=5155#comment-1173 不是吧,什么系统下运行的？我想知道这个库的实现方式，应该是通过驱动程序的

]]> 评论者：崔氏小龙 https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-1172 Sat, 16 Mar 2013 01:15:50 +0000 http://www.codelast.com/?p=5155#comment-1172 楼主，你原理图画错了～～～～～～～bcm gpio应该是第8个口哦～～～不是第6个哦。

]]> 评论者：learnhard https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-1157 Sun, 10 Mar 2013 06:47:27 +0000 http://www.codelast.com/?p=5155#comment-1157 回复给 风掠青竹。

笔误，感谢指出。已修改。

]]> 评论者：风掠青竹 https://www.codelast.com/%e5%8e%9f%e5%88%9b%e9%80%9a%e8%bf%87raspberry-pi%e7%9a%84gpio%e6%8e%a5%e5%8f%a3%e6%8e%a7%e5%88%b6%e5%8f%91%e5%85%89%e4%ba%8c%e6%9e%81%e7%ae%a1control-led-through-the-gpio-on-raspberry-pi/comment-page-1/#comment-1155 Sat, 09 Mar 2013 18:59:23 +0000 http://www.codelast.com/?p=5155#comment-1155 hi ,看了你的代码受益匪浅,不过感觉下面 argc 判断是不是应该 <2 才对 :)

if (argc < 1) {
printf("Usage example: ./led 4 \n");
return 1;
}

]]>