translate 1wire, gpclk, jtag, pwm, sdio to zh
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Villivateur Von
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@ -6,6 +6,8 @@
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本站从 [Pinout.xyz](https://pinout.xyz) 翻译而来，部分翻译工作仍在进行中，敬请期待！
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有任何问题可以直接邮件联系 v@vvzero.com ，谢谢！
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## 支持我们
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如果你喜欢本站，请捐助我们，以便我们继续努力，提供更多功能与改进：
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@ -29,12 +31,11 @@
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[查看本站的开发板导航页](/boards)！你可以在这里找到树莓派扩展板的引脚定义，或者体验下新板子。如果你做出来了自己的开发板，我们也很乐意把它加在这个页面中。[你可以在 GitHub.com 中向 Pinout.xyz 贡献代码](https://github.com/gadgetoid/Pinout.xyz).
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## 页面中的数字代表什么意思？
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## 引脚的不同编号分别代表什么？
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* GPIO 引脚 - 通用输入输出引脚。这些数字的字体较大，比如“GPIO 22”。你可以在树莓派或者树莓派 Zero 上使用它们。
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* 硬件引脚 - 也就是引脚在端子上的硬件位置。它们的字体较小，并紧挨着引脚。比如“硬件引脚 15”。
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* WiringPi - for Gordon Henderson's Wiring Pi library. These are shown as a tooltip when you mouseover a pin.
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* Rev 1 Pi - alternate GPIO/BCM numbers for the original, 26-pin model "A" and "B" Pi.
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* WiringPi 引脚 - 用于 Gordon Henderson 开发的 Wiring Pi 库。 当把鼠标指针放在引脚上时，提示框中显示的就是 Wiring Pi 引脚
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## 引脚定义图的排布方向是怎样的？
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@ -1,9 +1,9 @@
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<!--
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---
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name: 3v3 Power
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name: 3v3 供电
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class: interface
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type: pinout
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description: Raspberry Pi 3v3 Power Pins
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description: 树莓派 3V3 供电引脚
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pincount: 2
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pin:
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'1':
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@ -1,9 +1,9 @@
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<!--
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---
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name: 5v Power
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name: 5v 供电
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class: interface
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type: pinout
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description: Raspberry Pi 5v Power Pins
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description: 树莓派 5V 供电引脚
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pincount: 2
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pin:
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'2':
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@ -1,9 +1,9 @@
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<!--
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---
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name: Ground
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name: Ground 地线
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class: interface
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type: pinout
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description: Raspberry Pi Ground Pins
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description: 树莓派地线引脚
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pincount: 1
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pin:
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'6':
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<!--
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---
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name: 1-WIRE
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name: 1-WIRE 单线接口
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class: interface
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type: pinout
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description: Raspberry Pi One-Wire pins
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description: 树莓派单线数据接口
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url: https://www.kernel.org/doc/Documentation/w1/w1.generic
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pin:
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'bcm4':
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name: Data
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-->
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# W1-GPIO - One-Wire Interface
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# W1-GPIO - 单线数据接口
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One-wire is a single-wire communication bus typically used to connect sensors to the Pi.
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树莓派的单线数据接口是只需要一根线就能通讯的总线，通常用来与某些传感器通讯。
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The Raspberry Pi supports one-wire on any GPIO pin, but the default is GPIO 4.
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树莓派支持在任何引脚上启用单线数据接口，但默认使用 GPIO 4。
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To enable the one-wire interface you need to add the following line to /boot/config.txt, before rebooting your Pi:
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要启用单线数据接口，你需要编辑 `/boot/config.txt` 并添加以下信息，然后重启树莓派：
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```
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dtoverlay=w1-gpio
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```
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or
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或者，如果你想用除了 GPIO 4 以外的其他引脚：
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```
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dtoverlay=w1-gpio,gpiopin=x
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```
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if you would like to use a custom pin (the default is GPIO 4)
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Alternatively you can enable the one-wire interface on demand using `raspi-config`, or the following:
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你也可以用 `raspi-config` 命令来配置单线数据接口，或者以下命令：
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```
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sudo modprobe w1-gpio
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```
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Newer kernels (4.9.28 and later) allow you to use dynamic overlay loading instead, including creating multiple 1-Wire busses to be used at the same time:
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4.9.28 以后的内核版本可以动态加载引脚配置，还可以同时创建多个单线数据接口：
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```
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sudo dtoverlay w1-gpio gpiopin=4 pullup=0 # header pin 7
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@ -43,10 +41,10 @@ sudo dtoverlay w1-gpio gpiopin=17 pullup=0 # header pin 11
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sudo dtoverlay w1-gpio gpiopin=27 pullup=0 # header pin 13
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```
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once any of the steps above have been performed, and discovery is complete you can list the devices that your Raspberry Pi has discovered via all 1-Wire busses (by default GPIO 4), like so:
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执行了以上任意一种配置步骤后，即可用下面的命令查看树莓派已经识别的所有单线数据接口：
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```
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ls /sys/bus/w1/devices/
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```
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Using w1-gpio on the Raspberry Pi typically needs a 4.7 kΩ pull-up resistor connected between the GPIO pin and a 3.3v supply (e.g. header pin 1 or 17). Other means of connecting 1-Wire devices to the Raspberry Pi are also possible, such as using i2c to 1-Wire bridge chips.
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通常情况下，使用单线数据接口时，需要添加一个 4.7kΩ 的上拉电阻，上拉到 3.3V（比如引脚 1 或者 17）。你也可以通过其他方法把单线数据接口的传感器连到树莓派上，比如用一个 I2C 转单线的转接板。
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name: GPCLK
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class: interface
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type: pinout
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description: Raspberry Pi General Purpose Clock
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description: 树莓派通用时钟接口
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pin:
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'bcm4':
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name: GPCLK0
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'bcm6':
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name: GPCLK2
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-->
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# GPCLK - General Purpose CLock
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# GPCLK - 通用时钟
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General Purpose Clock pins can be set up to output a fixed frequency without any ongoing software control.
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通用时钟可以在无需软件控制的情况下，输出固定频率的信号。
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The following clock sources are available:
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此接口默认支持以下时钟源：
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```
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0 0 Hz Ground
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1 19.2 MHz oscillator
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0 0 Hz 接地
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1 19.2 MHz 晶振
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2 0 Hz testdebug0
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3 0 Hz testdebug1
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4 0 Hz PLLA
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5 1000 MHz PLLC (changes with overclock settings)
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5 1000 MHz PLLC (超频后，此数值会变化)
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6 500 MHz PLLD
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7 216 MHz HDMI auxiliary
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8-15 0 Hz Ground
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7 216 MHz HDMI 辅助
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8-15 0 Hz 接地
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```
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Other frequencies can be achieved by setting a clock-divider in the form of `SOURCE/(DIV_I + DIV_F/4096)`. Note, that the [BCM2835 ARM Peripherals](https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2835/BCM2835-ARM-Peripherals.pdf) document contains an error and states that the denominator of the divider is 1024 instead of 4096.
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你可以通过设置时钟分频以配置其他频率的时钟信号，格式为 `SOURCE/(DIV_I + DIV_F/4096)`。注意，[BCM2835 ARM 外设](https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2835/BCM2835-ARM-Peripherals.pdf) 文档里面有一个错误，分频器的分母应该是 1024 而不是 4096。
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name: JTAG
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class: interface
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type: pinout
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description: Raspberry Pi JTAG pins
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description: 树莓派 JTAG 接口
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pin:
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'bcm4':
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name: TDI (Alt5)
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'bcm27':
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name: TMS (Alt4)
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-->
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# JTAG - Joint Test Action Group
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# JTAG
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JTAG is a standardised interface for debugging integrated circuits which you can use to debug your Raspberry Pi.
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JTAG 是一个标准化的、用于测试集成电路的接口，可以用来调试树莓派。
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There are two separate JTAG interfaces available on the Pi:
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树莓派上有两个独立的 JTAG 接口：
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* Alt5 on GPIOs 4, 5, 6, 12 and 13
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* Alt4 on GPIOs 22, 23, 24, 25, 26 and 27
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* 复用功能5：GPIOs 4, 5, 6, 12, 13
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* 复用功能4：GPIOs 22, 23, 24, 25, 26, 27
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name: PCM
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class: interface
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type: pinout
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description: Raspberry Pi PCM pins
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description: 树莓派 PCM 接口
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pin:
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'bcm18':
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name: CLK
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name: PWM
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class: interface
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type: pinout
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description: Raspberry Pi PWM pins
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description: 树莓派 PWM 接口
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pin:
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'32':
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name: PWM0
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'35':
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name: PWM1
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-->
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# PWM - Pulse-width Modulation
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# PWM - 脉冲宽度调制
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PWM (Pulse-width Modulation) is a method of creating an analog voltage by toggling a digital pin on and off.
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PWM (脉冲宽度调制) 通过快速切换引脚电平，以实现数字信号转模拟信号。
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name: SDIO
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class: interface
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type: pinout
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description: Raspberry Pi SD0/SD1 pins
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description: 树莓派 SD0/SD1 接口
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pin:
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'bcm22':
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name: CLK
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'bcm27':
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name: DAT3
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-->
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# SDIO - SD Card Interface
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# SDIO - SD 卡接口
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SDIO is the SD host/eMMC interface on the Raspberry Pi. SD host signals are normally used for the microSD slot.
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SDIO 是 SD 主站或者 eMMC 的接口。SD 主站通常用于读写 microSD 卡槽。
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These pins are "SD host" on Alt0 and "eMMC" on Alt3.
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这些引脚是复用功能 0 中的 “SD Host” 以及复用功能 3 中的“eMMC”。
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