1. set wire connect
esp connect pin
we use VSPI PIN
2. esp-IDF set code
code paste this path
3. set W5100S
edit w5100S
4. set clock
set spi clock
5. build
idf.py set-target esp32
idf.py build
idf.py -p PORT flash
idf.py -p <PORT> monitor
build
6. loopback
program log
hercules program loopback test
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