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by jiauka
Fri Dec 05, 2025 10:42 am
Forum: ESP-IDF
Topic: SPI3 with esp32s2 not working in 3wire mode
Replies: 1
Views: 1742

SPI3 with esp32s2 not working in 3wire mode

Hi!
I do have a 3wire device (STLED316S) connected to an esp32s2

When using SPI2_HOST as SPi host it wroks fine and I can read the bus, but when using SPI3_HOST it does not work. And I do need to use the SPI3_HOST, the #2 host is connected to another device.


Here is a simple single file test C ...

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