ESP32 Forum

Hello.
I have upgraded ESP32 library in my Arduino, from version 2.x to 3.0 (formally, 3.0 is based on ESP-IDF 5.1).
And I have issues with spi_flash_xxxx functions.
I find by myself that functions was upgraded and names was changed to "esp". For example, now there are esp_flash_read instead spi_flash_read.
Also, esp_flash_t *chip parameter was added. More information here:
https://docs.espressif.com/projects/esp ... index.html

My old code working good for 2 years. Part to which the question relates are very simple. I have RAM array: And at startup, I reads one Flash sector into it: Please ignore "magic numbers". This code at least compile, and works.
I reading from main SPI FLASH (the same that contain ESP32 executable code), so I don't call esp_flash_init function. Because ESP32 initializes this memory (and SPI) by itself at startup.

But in 3.0 version, I have to include esp_flash_t *chip parameter.
I try NULL or esp_flash_default_chip, but without success. I getting errors like "function was not declared in this scope", or:

Compilation error: invalid conversion from 'int' to 'void*' [-fpermissive]

The same errors for other flash functions (write, erase sector, etc).

I need to obtain at least compilable code.
What I'm doing wrong, and how to fix it?

The data parameter is a void*, so rather than trying to cast the variable in the read function, set it to the type you want as a variable. The compiler will figure out how to pack it in the structure.

This was not an issue, but Your answer directed me to something else.
Order of argument is different.
In ESP-IDF 5.1, address must be third parameter, not the second one as in ESP-IDF 4.4.
This code compiles without errors: I will check later if it works in real.
So Thank You!

Glad to help you get unstuck