if we use example gpio32 or 33 we need explizite to use Code: Select all gpio_set_direction(PIN_SMI_MDIO, GPIO_MODE_INPUT); that the gpio32 or gpio33 is in INPUT mode too. https://esp32.com/viewtopic.php?f=12&t= ... 6508#p6458 is mean GPIO_FUNCx_IN_SEL_CFG_REG is ...
Lastly, Kolban's Book on the ESP32 discusses this instruction. https://leanpub.com/kolban-ESP32 Hope this helps...SparkyNZ Posts: 48 Joined: Thu Jan 04, 2024 9:01 pm Re: What does gpio_matrix_in and gpio_matrix_out do? Where is the code? by SparkyNZ » Sun Jan 07, 2024 ...