Somewhat OT:

I would highly recommend other microcontrollers besides parallax's
basic stamp. It is over-priced, and under-powered.

I've used Atmel's AVR a little bit, and they are pretty good. You can
program them using AVR ASM or C. I've used the ATmega32, which is:
Flash: 32kB
SRAM:1024B
EEPROM: 2048B
Speed:0 - 16MHz
And you can get it for around $10. You can find dev boards for around
$15-$40, depending on how many extras you want included in the board.

Here's a list of devices:
http://www.avrfreaks.net/index.php?module=FreaksDevices&func=viewDev

Here's some dev boards:
http://www.sparkfun.com/commerce/categories.php?cPath=2_10

Sorry for the off-topic reply...I had to use a basic stamp in school
once, and when I wanted to buy some for myself, I didn't like the
prices so I looked around.

-David R

On 2/8/06, Jim Bagley <jimbagley@...> wrote:
>
> Hi Gick2002,
>
> Just out of curiosity, how much memory has you basic stamp got? as if your
going to
> program the gba with something to show output in text on GBA, cos for
starters,
> your gonna need a font, and they don't come cheap memory wise, gba's smallest
font bpp is 4,
> so your gonna have to have code to convert 1bit bitmap font to 4bit,
> and code it to read data from stamp, not to mention the stamps own code to
> store the gba code and send it to gba, and finally your code for the project
to
> create the data and send to gba :) unless your putting all that on an
external eeprom to the stamp? :)
>
> Also sorry that I don't have info on MBV2 cable, but I do know you'll
> need a bit more storage space than a basic stamp, correct me if i'm wrong
here,
> as I've not long started using pics myself :)
>
>
> Either way, good luck with it.
>
> Baggers
>
> ----- Original Message -----
> From: gick2002
> To: gbadev@yahoogroups.com
> Sent: Tuesday, January 24, 2006 5:11 AM
> Subject: [gbadev] Program and control GBA using a Basic Stamp
>
> I'm working on a project using a Parallax Basic Stamp and would like to
> have it display the results on the GBA as basic text. I don't know if I
> can use the output of the stamp to program the GBA using multi-boot
> system. I would like to be able to transfer the program without using a
> flash linker module to load a communication program. The stamp gives me
> full control over the method of the serial communication so I believe
> they can communicate. I need to find out the specifics of the protocol
> used without having to reverse engineer the MBV2 cable and software. To
> sum up, every time I supply power to the GBA and Stamp I want the stamp
> to load the program into the GBA using the serial interface and display
> my data. I have the HAM compiler so I'm able to test the program in the
> emulator. Does anybody know if this can be done or another simple
> method that will produce similar results?
>