Add getSketchSize & getFreeSketchSpace API

[JoanMCD]

Hardware:

Board: ?ESP32 Dev Module?
Core Installation/update date: ?1/Aug/2018?
IDE name: ?Arduino IDE?

Description:

• Feature request -
  Please implement the well known (ESP8266) API functions for the ESP32

getSketchSize()
getFreeSketchSpace()

and if it makes sence for the ESP32:
getFlashChipRealSize()
getCoreVersion()
getBootVersion()
getBootMode()

thx, Joan

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[CriPstian]

Hello, I am making a transition from esp8266 to esp32 and I'm trying to keep using the same API that worked well for the first mentioned.
Are the rest of the API methods requested by @JoanMCD unsuitable for esp32?

• getFlashChipRealSize()
• getCoreVersion()
• getBootVersion()
• getBootMode()

@lbernstone is this information available anywhere to extract?

[lbernstone]

https://docs.espressif.com/projects/esp-idf/en/v3.3.3/api-reference/system/system.html#chip-version

[CriPstian]

https://docs.espressif.com/projects/esp-idf/en/v3.3.3/api-reference/system/system.html#chip-version

This chip version API described at that link does not provide any of the info that was exposed by the functions mentioned above.
Is this a NO to my question?
I need a way to obtain the actual size of my chip flash size, not the sum of the existing partitions, like the getFlashChipRealSize did before.

[lbernstone]

It simply means that I am not google. This information is readily available if you look for it.
https://github.com/espressif/esp-idf/blob/release/v3.3/components/spi_flash/include/esp_spi_flash.h#L54

[CriPstian]

It simply means that I am not google. This information is readily available if you look for it.
https://github.com/espressif/esp-idf/blob/release/v3.3/components/spi_flash/include/esp_spi_flash.h#L54

This is actually what I was saying. There's a clear note above that function that states:
This value does not necessarily match real flash size.
But no worries, I'll investigate further, hopefully come back here with an answer or PR.

[lbernstone]

https://github.com/espressif/esptool can certainly get at that info. Look there.

[VTeselkin]

getFlashChipRealSize=String(spi_flash_get_chip_size())