orangepi——基于官方外设开发

1.查看官方引脚定义：

外设就是普通io口、串口、i2c等

wiringPi外设SDK安装

1. git clone https : //github.com/orangepi-xunlong/wiringOP // 下载源码
2. cd wiringOP // 进入文件夹
3. sudo . / build clean // 清除编译信息
4. sudo . / build // 编译
5. 通过 windows 浏览器打开 https : //github.com/orangepi-xunlong/wiringOP
6. 下载压缩包
7. 把压缩包通过 xterm 传到开发板
8. 解压 unzip xxx . zip
9. cd xxx
10. sudo . / build
11. gpio readall（验证安装完毕，查看对应引脚）
     

gpio readall结果：

orangepi@orangepizero2:~/wiringPi_from_windows/wiringOP-master$ gpio readall
 +------+-----+----------+------+---+   H616   +---+------+----------+-----+------+
 | GPIO | wPi |   Name   | Mode | V | Physical | V | Mode | Name     | wPi | GPIO |
 +------+-----+----------+------+---+----++----+---+------+----------+-----+------+
 |      |     |     3.3V |      |   |  1 || 2  |   |      | 5V       |     |      |
 |  229 |   0 |    SDA.3 |  OFF | 0 |  3 || 4  |   |      | 5V       |     |      |
 |  228 |   1 |    SCL.3 |  OFF | 0 |  5 || 6  |   |      | GND      |     |      |
 |   73 |   2 |      PC9 |  OFF | 0 |  7 || 8  | 0 | ALT2 | TXD.5    | 3   | 226  |
 |      |     |      GND |      |   |  9 || 10 | 0 | ALT2 | RXD.5    | 4   | 227  |
 |   70 |   5 |      PC6 | ALT5 | 0 | 11 || 12 | 0 | OFF  | PC11     | 6   | 75   |
 |   69 |   7 |      PC5 | ALT5 | 0 | 13 || 14 |   |      | GND      |     |      |
 |   72 |   8 |      PC8 |  OFF | 0 | 15 || 16 | 0 | OFF  | PC15     | 9   | 79   |
 |      |     |     3.3V |      |   | 17 || 18 | 0 | OFF  | PC14     | 10  | 78   |
 |  231 |  11 |   MOSI.1 | ALT4 | 0 | 19 || 20 |   |      | GND      |     |      |
 |  232 |  12 |   MISO.1 | ALT4 | 0 | 21 || 22 | 0 | OFF  | PC7      | 13  | 71   |
 |  230 |  14 |   SCLK.1 | ALT4 | 0 | 23 || 24 | 0 | ALT4 | CE.1     | 15  | 233  |
 |      |     |      GND |      |   | 25 || 26 | 0 | OFF  | PC10     | 16  | 74   |
 |   65 |  17 |      PC1 |  OFF | 0 | 27 || 28 |   |      |          |     |      |
 |  272 |  18 |     PI16 |  OFF | 0 | 29 || 30 |   |      |          |     |      |
 |  262 |  19 |      PI6 |  OFF | 0 | 31 || 32 |   |      |          |     |      |
 |  234 |  20 |     PH10 | ALT3 | 0 | 33 || 34 |   |      |          |     |      |
 +------+-----+----------+------+---+----++----+---+------+----------+-----+------+
 | GPIO | wPi |   Name   | Mode | V | Physical | V | Mode | Name     | wPi | GPIO |
 +------+-----+----------+------+---+   H616   +---+------+----------+-----+------+