ESP8266 Community Forum

- Fri Aug 29, 2014 7:58 am #34 Is it possible that the xt- prefix for cross tools in Makefiles suggest that the 8266 is the xtensa based SOC ?

The cross tools for x86 linux host can be obtained from:

https://www.kernel.org/pub/tools/crosst ... nux.tar.gz
https://www.kernel.org/pub/tools/crosst ... nux.tar.gz


[EDIT]:

The crosstool sources and patches for xtensa can be found on git

https://github.com/foss-xtensa

- Fri Aug 29, 2014 10:19 am #39

Is it possible that the xt- prefix for cross tools in Makefiles suggest that the 8266 is the xtensa based SOC ?

That's quite likely to be the cause of that prefix.

In any case, the ESP8266 is based on the Tensilica Xtensa LX3, which appears to be running at 80MHz (according to a header file in the IoT example files).

- Fri Aug 29, 2014 12:30 pm #41 I have spent some time hacking at the makefiles stitching in the xtensa crosstools from kernel.org but I ran into further issues. I think I need to build crosstools myself with a few more options enabled. Still hacking at it.

http://www.thegreatgeekery.com

- Fri Aug 29, 2014 12:57 pm #42

I have spent some time hacking at the makefiles stitching in the xtensa crosstools from kernel.org but I ran into further issues. I think I need to build crosstools myself with a few more options enabled. Still hacking at it.

Would you care to elaborate on that a bit more? What exactly were you trying to accomplish, what did you try (or change), what is it that you're missing, etc.?