ESP32 Forum

Team,

Can i use SPI2/3 in custom bootloader? Given drivers in bootloader seems supporting only SPI0/1 (memory mapped SPI). Let me know if we can access SPI2/3 also provide which files & interfaces i can use

Team,

Any input on this query? I had to use SIP flash (SPI0/SPI1) as well as external flash (SPI2). I am using esp32s3 chip

There's nothing particular stopping you from doing that, but you can't use the normal drivers as FreeRTOS is not running. You should still be able to use the HAL layer, though.