ESP32S3 WROOM1 SPI on reserved pins, again

maurizio.scian
Posts: 11
Joined: Mon Jun 26, 2023 8:09 am

ESP32S3 WROOM1 SPI on reserved pins, again

Postby maurizio.scian » Sun Sep 17, 2023 4:05 pm

The hardware developer read this post: https://esp32.com/viewtopic.php?t=1654
So he decided to cable the SPI bus to the reserved pins for drive a W5500.
In detail, he used
37 as MISO
35 as MOSI
36 as SCK
The W5500 works well with other pins, but when I tried to move SPI3_HOST on that pins, nothing works anymore. I'm working with idf 5.0.
Is there a possibility to use reserved pins for other purpouse, as hardware developer said, or that pins or (as said here: https://esp32.com/viewtopic.php?f=13&t= ... it=SPI+pin) is not possible?

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