Hello,
for the ESP32C6 the SPI2 peripheral can be used with any GPIO pins by routing them through the GPIO-MUX. But when using specific pins, the SPI2 signals of the ESP32C6 can be routed through the IO-MUX directly.

Some sources say that routing the signals directly via IO-MUX is faster (allows ...

1: I just wrote a minimal code example to enable a rising-edge Interrupt for a GPIO using the IDF 5.1. The code works and the Interrupt is detected, however I noticed that calling the function "gpio_intr_enable()" is completely unnecessary:


gpio_num_t gpio_num = GPIO_NUM_0;
// [set gpio_num as ...