ESP8266 Community Forum

- Sat Aug 20, 2016 11:19 pm #53464 Hello,

I am attempting to streamline my build process and was hoping that there might be a way for me to selectively have code compile depending on the targets flash memory size.

In a lot of the libraries I see the flowing code.

Code: Select all#ifdef ESP8266
//some code here
#endif

Is it possible to do some thing based on the flash size selected?

Serial terminal in the chrome browser see https://serialTerminal.com

http://esp8266basic.com
A BASIC interpreter for your ESP

Working now on Autodrop3d. A 3d printer with automatic part ejection system. https://autodrop3d.com

- Sun Aug 21, 2016 8:28 am #53485 Unfortunately, No !
The flash size is determined at link time using LD script, not at compile time.
The best you can do is having it determined at run-time by looking at the _SPIFFS_end variable.

- Tue Aug 23, 2016 11:12 pm #53706 My goal is to selectivity cut out things that take up space to make the esp basic firmware continue to work on 1 meg modules with a few features omitted. I am up against the wall on the 1 meg modules using 99% of available space for the firmware.

Serial terminal in the chrome browser see https://serialTerminal.com

http://esp8266basic.com
A BASIC interpreter for your ESP

Working now on Autodrop3d. A 3d printer with automatic part ejection system. https://autodrop3d.com