How to do coding for Ethernet communication in Teensy 4.1

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yournjell

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Hi, Everyone.

I am trying send analog signal from ADC board --- Teensy 4.1 --- UDP --- PC.

I understood how to connect the ethernet 6-pins and the ethernet socket.
However, I am confused how to write code for the ethernet communication in teensy 4.1.
Is there a library to write code for ethernet communication in Arduino IDE?

Until Teensy 3~ 4.0 requires SPI communication for the ethernet module.
My ADC board communicates to teensy 4.1 using SPI communication.
In this case, should I use the ethernet with SPI 1 and the ADC board with SPI2 ?
 
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