如何在GPIF中使用输入PCLK？ 如何配置代码？

我看了看，浏览了一下。在我的搜索过程中，我看到了一些其他类型的信息请求，而不是几年前的答案。
所有的文档似乎都假设我已经知道FX3的这部分是如何工作的。我没有，我找不到。
我想提供PCLK从PSoC 5总线时钟（完成，24MHz输出）到PCLK输入。
我还没有找到任何代码，我需要做什么，使PCLK的输入*和*迫使GPIF状态机*使用*作为其时钟输入。
我还没有找到任何关于如何使用这些工具来使PCLK进入FX3并被用来代替内部GPIF PCLK生成器的任何信息。GPIF II设计器中有一个“外部”时钟按钮。然而，没有关于配置到GPIF引脚的It代码以使其成为PCLK输入的信息，然后配置该输入以将FX3织物作为其FX3状态机/DMA传输的时钟源馈送。
在超速示例中，有一个*代码，用于从内部GPIF PCLK生成器生成GPIF A*输出，但不解释如何使它成为输入，而是使用该输入作为时钟。因为存在需要配置的代码
有可能做到这一点吗？我错过了什么？
如果不是，有没有办法将PSoC 5 EMIF配置为使用外部时钟而不是总线时钟？我看不出我能做什么。



     以下为原文
  I have looked and googled and read.  During my searches I have seen some other requests for this type of information without answers from several years ago.

All of the documentation seems to assume I already know how this part of the FX3 works.  I don't, and I can't find it.

I want to supply the PCLK from a PSOC 5 bus clock (done, 24mhz output) into the PCLK input.

I have not found any information on what code I need to do to make PCLK an input *and* force the GPIF state machine to *use* that input as its clock.

I have not found *any* information on how to use the tools to make PCLK go *into* the FX3 and be used *instead* of the internal GPIF PCLK generator.  There is an "external" clock button in the GPIF II designer.  However, there is no information on what configuration to do int code to the GPIF pin to make it be the PCLK input, and then configure that input to feed the FX3 fabric as its clock source for the FX3 state machine / DMA transfer.

In the Superspeed example there is *code* to make GPIF an *output* from the internal GPIF PCLK generator  but no explanation of how to make it an input and use that input as the clock instead.  Since there is code that appears to be required to configure


Is it possible to do this?  What am I missing?

if not, is there a way to configure the PSOC 5 EMIF to use an external clock rather than the bus clock?  I did not see where I could do that.