hang up at cns11xx

[Mori Hiroki]

Hi.

I try to cns11xx use gcc. I add EventTimer,FTD,INTRNG. 

I have hang up problem. I seem uart read is trigger at hang up.

I can't use break.

This is hang up by single user sh input.

https://gist.github.com/yamori813/ae047a28a825aac255e436fd8ccaf785


How to debug in this case...

If you have advice, please let me know.

I spend many time this target. Because of I love vintage soc. :)

Thanks.

Hiroki Mori