BS2 : EEPROM AMAZINGLY small? Workaround?

IceFirePro

Hello,

I just tried to see how big is the EEPROM and I was able to just print (DEBUG) the following line "Let's try with another text, which is as long as the first, and shold stop here i know now" 10 times and it's full?

How do you guys do logic with EEPROM so small? Is there a workaround?

allanlane5

The eeprom holds a tokenized form of your program, so 2000 bytes can let you do quite a lot. Plus, it's a "real-time" processor with a dedicated task, which typically requires running the same small set of instructions over and over again.

Mike Green

You can fit a lot of ordinary statements in the 100 bytes or so that your DEBUG statement occupies.

sumdawgy

My experience fiting a fairly sizeable program into a Bs1.. Helped me get a little insight into the storage methods of the compiler. I found I can store a lot more bytes (per location) in a "Lookup" command than I could by storing each byte seperately for use by a "Read" command.

Suggestion: Instead of tranmitting full sentences in debug, send short number patterns and use a Comm program to convert them to thier verbose translations.


(And you thought the Bs2 had no Eeprom... Take a look at the Bs1 stats.)

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Before you criticize someone, walk a mile in his shoes. That way if he gets angry, he'll be a mile away and barefoot. - unknown

erco

2K is 2K and certainly encourages efficient coding! Lots of successful, well-documented BS2 projects & apps out there.

No sir, it ain't in the running for biggest memory, but a more helpful & loyal company and followers you will not find.

BTW you do have other Parallax options, other BS2s with 8 times the memory, or the Propeller.

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·"If you build it, they will come."

IceFirePro

BS2's 2k are quite enough really, they are too small only for storing text strings, for which I have to find a workaround (e.g. if i want to see written text in the debug window as a part of a program), because text can't be tokensized really.

sumdawgy

IceFirePro said...
BS2's 2k are quite enough really, they are too small only for storing text strings, for which I have to find a workaround (e.g. if i want to see written text in the debug window as a part of a program), because text can't be tokensized really.

"Can't really?". Them's fightin' words...or at least a challenge [noparse]:)[/noparse]
Just let each string/word you want to display = a byte/charachter of your choosing.

I've built a VB5 program from samples I found from the stamp community that monitors the comm port and responds to my particular config.· I've seen bs2 samples too.· Just build a program that takes yer personal tokens from the stamp·and converts it to your strings.

Or.. just let the tokens appear in a debug screen.· Since they're your tokens, you should recognize them.· As it was said in "The Matrix", "after a while, I don't see the stream anymore.·Instead,·I see blond, brunette, redhead...."

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Before you criticize someone, walk a mile in his shoes. That way if he gets angry, he'll be a mile away and barefoot. - unknown

hover1

I guess if the EEPROM was too small, Parallax would have changed that 10 years ago. Most people find it sufficient.

Post Edited (hover1) : 6/11/2010 10:42:50 PM GMT

BuGeYeS

Set up I2C routines to additional eeprom(s) , up to eight, for more storage space(bs2) ,,,I2Cin I2Cout for bs2p

hope this helps

IceFirePro

Yep, this will (Set up I2C routines to additional eeprom(s) , up to eight, for more storage space(bs2)), but it will be a long time until I can actually do that[noparse]:)[/noparse]

Yoshti

~S!~
One of my project using BS2p and VBxpress 2008, i do as suggested above:
I send a debug with code like C:240 TF1:32 TC1:0 ...
Which in VB I know what C: means Compass value.
So I parse each part and display the result.

So this way I was able to send a lot of info and cram a lot more programming stuff!
So once you know what code you are using and how big, let VB do the rest !

Cheers
Yosh!