I got it, Thanks for your reply.

In ESP32 WROOM-32U development kit, i thought the external flash chip is already mounted within the kit. Correct me if am wrong.

Hi, I am currently working in the ESP32 WROOM-32U development kit. I need to write and read the data on an external flash chip using the SPI interface. I took the sample code from esp-idf storage example code -> "ext_flash_fatfs". I flashed the code directly on the esp32 board and observed the below...