There is only calibration data in the NVRAM
Well, I got programmer today, so will see. I don't find any other EEPROM/ROM storage except Flash and NVSRAM at first glance.
Of course, Tek could store key data in one of their big ASICs, but that's questionable.
I see few various ways to enable options:
1. Having good key for option (it's not much of a secret, usually it's on sticker @ module label) - fool module ID to match key. PowerFlex tool gives you what is correct module ID for key. To do so need find ID location and alter it's contents.
2. Find "option enabled" flag/storage and alter it to force option enabled, disregarding of ID/key
3. Do some black software magic and reverse correct key for PowerFlex to enable option using known ID
![Smiley :)](https://www.eevblog.com/forum/Smileys/default/smiley.gif)
Any vxWorks experts around?
![Roll Eyes ::)](https://www.eevblog.com/forum/Smileys/default/rolleyes.gif)
UPDATE:
Got 32M now
![Smiley :)](https://www.eevblog.com/forum/Smileys/default/smiley.gif)
Don't know how, it just surrender and decided to give me what I want.
![Laughing :-DD](https://www.eevblog.com/forum/Smileys/default/smiley_laughing.gif)
Before:
![](http://fotkidepo.ru/photo/115530/50896lhF73OzqbP/931247w.jpg)
Now
![](http://fotkidepo.ru/photo/115530/50896lhF73OzqbP/931248w.jpg)
All I did - removed original Dallas DS1230AB NVRAM, soldered DIP socket on PCB.
Put blank DS1245AB with VCC pin 32 shorted to pin 30 (i had DS1245AB from Keithley 2001, it's 1024k 32-pin, while DS1230 is 256k 28pin)
Assemble module back, put back into TLA714 frame - booted, run Powerflex - reports 32M right away.
Too easy!
![WTF? :wtf:](https://www.eevblog.com/forum/Smileys/default/wtf2.gif)
P.S. I guess that's same Murphy law which striked Dave's DSA repair project from recent episode. Thanks Dave!
![Cheesy :D](https://www.eevblog.com/forum/Smileys/default/cheesy.gif)