Difference between revisions of "WiringNP: NanoPi NEO/NEO2/Air GPIO Programming with C/zh"
From FriendlyELEC WiKi
(→WiringNP的安装) |
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chmod 755 build | chmod 755 build | ||
./build | ./build | ||
| + | </syntaxhighlight> | ||
| + | |||
| + | 测试安装 | ||
| + | WiringNP包括一套gpio命令，使用gpio命令可以控制NanoPi上的各种接口，通过以下指令可以测试WiringNP是否安装成功: | ||
| + | <syntaxhighlight lang="bash"> | ||
| + | gpio readall | ||
| + | </syntaxhighlight> | ||
| + | 如果安装成功会显示NanoPI的IO图，例如NanoPI M1会显示如下信息： | ||
| + | <syntaxhighlight lang="bash"> | ||
| + | root@FriendlyARM:~# gpio readall | ||
| + | +-----+-----+----------+------+---+-NanoPI M1+---+------+----------+-----+-----+ | ||
| + | | BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM | | ||
| + | +-----+-----+----------+------+---+----++----+---+------+----------+-----+-----+ | ||
| + | | | | 3.3v | | | 1 || 2 | | | 5v | | | | ||
| + | | 12 | 8 | SDA.0 | ALT5 | 0 | 3 || 4 | | | 5V | | | | ||
| + | | 11 | 9 | SCL.0 | ALT5 | 0 | 5 || 6 | | | 0v | | | | ||
| + | | 203 | 7 | GPIO.7 | OUT | 0 | 7 || 8 | 0 | ALT5 | TxD3 | 15 | 198 | | ||
| + | | | | 0v | | | 9 || 10 | 0 | ALT5 | RxD3 | 16 | 199 | | ||
| + | | 0 | 0 | RxD2 | ALT5 | 0 | 11 || 12 | 0 | OFF | GPIO.1 | 1 | 6 | | ||
| + | | 2 | 2 | TxD2 | OFF | 0 | 13 || 14 | | | 0v | | | | ||
| + | | 3 | 3 | CTS2 | OFF | 0 | 15 || 16 | 0 | OFF | GPIO.4 | 4 | 200 | | ||
| + | | | | 3.3v | | | 17 || 18 | 0 | OFF | GPIO.5 | 5 | 201 | | ||
| + | | 64 | 12 | MOSI | ALT4 | 0 | 19 || 20 | | | 0v | | | | ||
| + | | 65 | 13 | MISO | ALT4 | 0 | 21 || 22 | 0 | ALT5 | RTS2 | 6 | 1 | | ||
| + | | 66 | 14 | SCLK | ALT4 | 0 | 23 || 24 | 0 | ALT4 | CE0 | 10 | 67 | | ||
| + | | | | 0v | | | 25 || 26 | 0 | OFF | GPIO.11 | 11 | 17 | | ||
| + | | 19 | 30 | SDA.1 | ALT4 | 0 | 27 || 28 | 0 | ALT4 | SCL.1 | 31 | 18 | | ||
| + | | 20 | 21 | GPIO.21 | OFF | 0 | 29 || 30 | | | 0v | | | | ||
| + | | 21 | 22 | GPIO.22 | OFF | 0 | 31 || 32 | 0 | OFF | RTS1 | 26 | 7 | | ||
| + | | 8 | 23 | GPIO.23 | OFF | 0 | 33 || 34 | | | 0v | | | | ||
| + | | 16 | 24 | GPIO.24 | ALT4 | 0 | 35 || 36 | 0 | OFF | CTS1 | 27 | 13 | | ||
| + | | 9 | 25 | GPIO.25 | OFF | 0 | 37 || 38 | 0 | OFF | TxD1 | 28 | 15 | | ||
| + | | | | 0v | | | 39 || 40 | 0 | ALT4 | RxD1 | 29 | 14 | | ||
| + | +-----+-----+----------+------+---+----++----+---+------+----------+-----+-----+ | ||
| + | | BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM | | ||
| + | +-----+-----+----------+------+---+-NanoPI M1+---+------+----------+-----+-----+ | ||
| + | |||
| + | +-----+----NanoPI M1 Debug UART---+----+ | ||
| + | | BCM | wPi | Name | Mode | V | Ph | | ||
| + | +-----+-----+----------+------+---+----+ | ||
| + | | | | 0v | | | 41 | | ||
| + | | | | 5v | | | 42 | | ||
| + | | 4 | 32 | GPIO.4 | ALT5 | 0 | 43 | | ||
| + | | 5 | 33 | GPIO.5 | ALT5 | 0 | 44 | | ||
| + | +-----+-----+----------+------+---+----+ | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Revision as of 09:10, 30 November 2016
1 WiringPi简介
wiringPi库最早是由Gordon Henderson所编写并维护的一个用C语言写成的类库，除了GPIO库，还包括了I2C库、SPI库、UART库和软件PWM库等，由于wiringPi的API函数和arduino非常相似，这也使得它广受欢迎。
wiringPi库除了提供wiringPi类库及其头文件外，还提供了一个命令行工具gpio：可以用来设置和读写GPIO管脚，以方便在Shell脚本中控制GPIO管脚。
2 WiringNP简介
wiringPi库最初是为BCM2835芯片编写的，后被爱好者移植到Allwinner H3平台，针对NanoPi的wiringPi衍生版本其项目命名为WiringNP，目前支持NanoPi M1和NanoPi NEO开发板, 最初版本是由网友wertyzp提供的版本。
WiringNP项目主页: https://github.com/friendlyarm/WiringNP
3 WiringNP的安装
通过ssh，或者串口终端进入开发板的命令行，从 github 上下载WiringNP代码并编译安装:
git clone https://github.com/friendlyarm/WiringNP cd WiringNP/ chmod 755 build ./build
测试安装 WiringNP包括一套gpio命令，使用gpio命令可以控制NanoPi上的各种接口，通过以下指令可以测试WiringNP是否安装成功:
gpio readall
如果安装成功会显示NanoPI的IO图，例如NanoPI M1会显示如下信息：
root@FriendlyARM:~# gpio readall +-----+-----+----------+------+---+-NanoPI M1+---+------+----------+-----+-----+ | BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM | +-----+-----+----------+------+---+----++----+---+------+----------+-----+-----+ | | | 3.3v | | | 1 || 2 | | | 5v | | | | 12 | 8 | SDA.0 | ALT5 | 0 | 3 || 4 | | | 5V | | | | 11 | 9 | SCL.0 | ALT5 | 0 | 5 || 6 | | | 0v | | | | 203 | 7 | GPIO.7 | OUT | 0 | 7 || 8 | 0 | ALT5 | TxD3 | 15 | 198 | | | | 0v | | | 9 || 10 | 0 | ALT5 | RxD3 | 16 | 199 | | 0 | 0 | RxD2 | ALT5 | 0 | 11 || 12 | 0 | OFF | GPIO.1 | 1 | 6 | | 2 | 2 | TxD2 | OFF | 0 | 13 || 14 | | | 0v | | | | 3 | 3 | CTS2 | OFF | 0 | 15 || 16 | 0 | OFF | GPIO.4 | 4 | 200 | | | | 3.3v | | | 17 || 18 | 0 | OFF | GPIO.5 | 5 | 201 | | 64 | 12 | MOSI | ALT4 | 0 | 19 || 20 | | | 0v | | | | 65 | 13 | MISO | ALT4 | 0 | 21 || 22 | 0 | ALT5 | RTS2 | 6 | 1 | | 66 | 14 | SCLK | ALT4 | 0 | 23 || 24 | 0 | ALT4 | CE0 | 10 | 67 | | | | 0v | | | 25 || 26 | 0 | OFF | GPIO.11 | 11 | 17 | | 19 | 30 | SDA.1 | ALT4 | 0 | 27 || 28 | 0 | ALT4 | SCL.1 | 31 | 18 | | 20 | 21 | GPIO.21 | OFF | 0 | 29 || 30 | | | 0v | | | | 21 | 22 | GPIO.22 | OFF | 0 | 31 || 32 | 0 | OFF | RTS1 | 26 | 7 | | 8 | 23 | GPIO.23 | OFF | 0 | 33 || 34 | | | 0v | | | | 16 | 24 | GPIO.24 | ALT4 | 0 | 35 || 36 | 0 | OFF | CTS1 | 27 | 13 | | 9 | 25 | GPIO.25 | OFF | 0 | 37 || 38 | 0 | OFF | TxD1 | 28 | 15 | | | | 0v | | | 39 || 40 | 0 | ALT4 | RxD1 | 29 | 14 | +-----+-----+----------+------+---+----++----+---+------+----------+-----+-----+ | BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM | +-----+-----+----------+------+---+-NanoPI M1+---+------+----------+-----+-----+ +-----+----NanoPI M1 Debug UART---+----+ | BCM | wPi | Name | Mode | V | Ph | +-----+-----+----------+------+---+----+ | | | 0v | | | 41 | | | | 5v | | | 42 | | 4 | 32 | GPIO.4 | ALT5 | 0 | 43 | | 5 | 33 | GPIO.5 | ALT5 | 0 | 44 | +-----+-----+----------+------+---+----+
