ESP8266 Community Forum

Hi all,

I tried to upload some code on the esp but got the following error: section `.text' will not fit in region `iram1_0_seg'.
After googling it a bit I found that I could modify in what area of the memory will the code go. I added *(.literal .text .literal.* .text.*) to the .irom0.text section in eagle.app.v6.ld


It now compiles just fine but the it seems that the code is't running on the esp. There should be some output on the serial interface and I should see and AP but none of that is happening.
Any idea what is happening or any suggestions?

Thank you!

Fixed it. I forgot one step. I found it in the Espruino-on-ESP8266 project in the Makefile https://github.com/aplikatika/Espruino- ... efile#L119

Also only *(.literal.* .text.*) needs to be added to .irom0.text and all your code goes to irom. If you want a specific function to go to iram: and prefix your function with it.

And here's me thinking that eagle.app.v6.ld change would save my life - made absolutely zero difference on recompile to the size of my .text area - currently sitting dangerously at 7c20.....

It certainly would make a lot more sense to specify which functions to put in RAM rather than the other way around as they're nearly all in FLASH.

Yes agree. I ended up marking nearly all of my functions with the irom attribute (which is very misleadingly called "ICACHE_FLASH_ATTR" and imho suggests the function will be cached in RAM which ultimately is NOT the case, the absence attribute does that!)