retriving code from BS2

jruthroff

Embarassing to admit, but I made a change to some BS2 code that made my project do just what I wanted it to do. Too bad I didn't save the change to my PC :-(

How can I download the code from the stamp?

Thanks,

John

davejames

No can do. :frown:

Dumping the contents of the EEPROM yields only "tokens", and being the result of a compile and download are not readable.

DJ

Mike Green

You can't even retrieve all the compiled tokens. There's no mechanism to download them except by loading a short program into the Stamp to do so. That small program will overlay part of what you want to retrieve preventing its retrieval.

jruthroff

Well, a lesson hard-learned is not easily fogotten...time to reinvent the wheel. Thanks for the replies!

John

Qwaszx72

Here is a link to my thread which has a tutorial on how to do this. But as stated before it is nearly impossible to retrieve all of the data from a BS2.

http://forums.parallax.com/showthread.php?131299-Tutorial-Retrieving-EEPROM-Data-From-BASIC-Stamp-Modules

davejames

...and what, then, is the use of this data?

Phil Pilgrim (PhiPi)

By itself, it's of virtually no use. However, if you have two or more programs on your PC and want to know which one was loaded into the Stamp, the partial dump will usually provide enough info to tell you which one it is.

-Phil

davejames

So it's possible to save the "tokenized" version of code on the computer? I must have missed that as I've never actually looked for that particular feature. Then I'm guessing you're suggesting comparing the retrieved code against a previously saved token-version.

Yea/Nea?


Update...I just explored the Stamp editor and could find no feature for saving a tokenized version of code. There is the "Generate Object Code" function, but it appears to just download to the Stamp.

Mike G

Update...I just explored the Stamp editor and could find no feature for saving a tokenized version of code. There is the "Generate Object Code" function, but it appears to just download to the Stamp.

There is a Memory Map utility in the run drop down.

Mike Green

Look at pages 75-78 of the Stamp Basic Syntax and Reference Manual for information on saving compiled (tokenized) PBasic code.

davejames

@Mike G - "There is a Memory Map utility in the run drop down." .....ok, yes, how does that play in to the discussion?

@Mr. Green - ouch! This could be a candidate for the "you're an old geek if..." thread started by Bean. Just a couple weeks back I pointed another Forum member to this exact place in the manual...and completely forgot about it!

Mike G

@davejames, I guess i don't understand BS2 compiled code. I though the map displayed the compiled code for a particular BS2 file.

RobotWorkshop

This topic has come up many times in the past. If you are interested here are some past threads....

http://forums.parallax.com/showthread.php?120257-EEPROM-Dump-Utility&highlight=code+eeprom

http://forums.parallax.com/showthread.php?120913-Can-the-stamp-code-be-copied&highlight=code+eeprom

http://forums.parallax.com/showthread.php?120113-Retrieve-code-from-old-BS2-Chip&highlight=code+eeprom

http://forums.parallax.com/showthread.php?118536-how-to-retrieve-bse-code&highlight=code+eeprom

http://forums.parallax.com/showthread.php?107755-Pulling-code-off-a-BS2&highlight=lost+program

davejames

Methinks the OP now has enough info on which to chew...

Phil Pilgrim (PhiPi)

davejames wrote:

Methinks the OP now has enough info on which to chew...

Methinks the OP left the building days ago.

-Phil