first and working ethernet

Refernce Code/RP2040-ETH-WS2812B/C/ReadmeEN.txt

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+/*****************************************************************************
+* | File      	:   Readme_EN.txt
+* | Author      :   
+* | Function    :   Help with use
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2021-02-04
+* | Info        :   Here is an English version of the documentation for your quick use.
+******************************************************************************/
+This file is to help you use this routine.
+Since our ink screens are getting more and more, it is not convenient for our maintenance, so all the ink screen programs are made into one project.
+A brief description of the use of this project is here:
+
+1. Basic information:
+This routine is used to test or demonstrate WS2812B on RP2040-ETH.
+
+2. Pin connection:
+Pin connection You can look at dev_config.c/h in \lib\Config. Again, here:
+DIN    ->    25
+
+3. Basic use:
+You need to execute:
+    If the directory already exists, you can go directly. If there is no build directory, execute
+         mkdir build
+     Enter the build directory and type in the terminal:
+         cd build
+         export PICO_SDK_PATH=../../pico-sdk
+     Where ../../pico-sdk is your installed SDK directory
+     Execute cmake, automatically generate Makefile file, enter in the terminal:
+         cmake ..
+     Execute make to generate an executable file, and enter in the terminal:
+         make
+     Copy the compiled uf2 file to pico
+