You can check on the global esp32 pinout reference to know what default spi pins to use.
By the way, you can attach the SPI bus on your desired pins thanks to the GPIO matrix.

Any advice ?

Hi, I have designed a PCB using ESP WROVER B module. I can program the flash without issue and the auto reset circuit works too. But when I press EN button for hard reset, I have this error "flash read err, 1000" an then it restart and boot normaly with RTCWDT_RTC_RESET : rst:0x1 (POWERON_RESET),boo...

Thank you for the informations.

After looking the source code of sdmmc_read_sectors() fonction, everything is clear about speed issue. So you can't use PSRAM to store data from a SD card with high speed. Is it possible to not use DMA for the sd card host and use CPU instead ? I also don't understand why there is no DMA for PSRAM b...

I encounter a problem with Psram (included in a Wrover B module) speed using an SD card in 4-bit mode. To fill a buffer of 100KB stored in internal RAM it takes only 6 ms which is really fast using sdmmc_read_sectors() But with the same buffer size stored in PSRAM it takes 136 ms ? Why so slow ? I'm...

Is there a better way to do this ? Using only 1 core and not 2 cores ?
For example, can I trigger easily an interruption when the SD host has finished to write data into a buffer using sdmmc_read_sectors() ?
If it's possible I can send a SPI transaction into the interruption ?

Hi, I'm wonder if there is a better way to transfer data as fast as possible continually from a SD Card to a SPI output ? Currently the only way I have found is to have 2 large buffers in the RAM using the 2 cores. I'm using DMA for SPI (and also for the SD I think ? ) While I'm writing data into bu...

In fact, I realized that clusters of a file are not necessarily following each others (in hardware). So I couldn't read all clusters of a file with just one read command using sdmmc_read_sectors(). But I have done a script in Python that write any file in binary on a SD Card at a chosen sectors. It'...

Here you cand find the datasheet for the PSRAM :

32 : http://gamma.spb.ru/images/pdf/esp-psra ... eet_en.pdf
64 : https://www.espressif.com/sites/default ... eet_en.pdf