Raspberry Pi 2上提供的GPIO [英] Available GPIO on Raspberry Pi 2

问题描述

我正在研究一个项目，我会使用很多GPIO。问题是我找到了4个不同的可用图纸。

I am working on a project were I will use a lot of GPIO. Problem is that I have found 4 different drawings of what is available.

它们全部来自微软，并没有注明日期。我在哪里可以找到当前的？为什么Microsoft不会删除过时的？

They are all from Microsoft and are not dated. Where can I find the current one? Why don't Microsoft remove obsolete?

今天用于特殊功能的GPIO是否可以在config.txt文件中进行配置？在其中一个I / O连接器

Is it any hope that GPIO today used for special functions will be made configurable in the config.txt file? On one of the I/O connector

图纸上，我有9个GPIO用于SPI。  如果您不使用SPI，则完全浪费了。

drawings I have 9 GPIO are used for SPI.  This is completely wasted if you don't use SPI.

我在I2C1上使用I / O扩展器。  如果您不使用HAT，也会浪费I2C0。与UART引脚相同。

I use I/O-expanders on the I2C1.  I2C0 is also wasted if you non't use HAT. The same with the UART pins.

推荐答案

我认为这是最新的信息。

I think that this is the most up to date information.

https://ms-iot.github.io/content/en-US/win10/samples/PinMappingsRPi2.htm  

虽然允许更改串行Rx / Tx on 8& 10月份来自10586还没有成功。

though the change to allow Serial Rx/Tx on 8 & 10 from 10586 has not made it though yet.

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