[avr-libc-dev] 2.0.0 and XMega32E5 eeprom troubles...

[Scott Price]

I am not able to get any of the eeprom_write_* or eeprom_update_* 
functions working on an XMega32E5.  There are no compile errors or 
warnings, the functions just don't do anything.  The eeprom read 
functions that I am using all work fine.

I had previously been using a version of avr-libc that I lifted from 
AVRStudio 6.2 to get support for the E5.  The eeprom functions worked 
well on that version.

I compiled it using gcc-4.9.3 on Ubuntu Trusty.

Atmel's nvm functions work for me, but add a significant amount of code. 
 I would rather use the ones from avr-libc, since I use them for all of 
my other AVR projects.

Looking through the code and the docs it seems like the functions should 
work.

I have done a number of experiments, including writing a fixed value to 
a fixed location on boot then reading the eeprom out with avr-dude. 
Nothing I have done has produced a successful write.

What more information do you need, or what tests can I run to help debug 
this?

Thanks!

Scott  =)

--
Scott L. Price, P.E.
Electrical Engineering/IT Manager
Hunt Utilities Group LLC                     http://www.hugllc.com
Pine River, MN                               (218) 587-5001
MN Electrical Licenses:  Master #AM08525  Power Limited #PL11071