Extra program space?????

mukarram

Hi,

Q1: I wonder if I can use EEPROM chips to expand program space....?

Q2: How can I use an SD card with a BASIC Stamp?????

Any ideas???

Thanks in advance.......

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[b]Mukarram[sup]Emc[sub]2[/sub][/sup]Ahmad[/b]

PJAllen

"Q1" was answered for you once before -- http://forums.parallax.com/showthread.php?p=589928

"Q2" an SD card could only be used to store data, but not as program space.

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mukarram

I mean how can I store data in an SD card(schematics, code...........know what I mean)

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[b]Mukarram[sup]Emc[sub]2[/sub][/sup]Ahmad[/b]

PJAllen

http://www.geeks.com/details.asp?invtid=SDSDPH-512-901-R&cat=RDM

Gadgetman

you may want to look at this:
http://www.sparkfun.com/commerce/product_info.php?products_id=204

you'll also need the actual socket
http://www.sparkfun.com/commerce/product_info.php?products_id=136

you'll need a firn understanding of how the FAT filesystem works, too.

Also, there may be a few clues if you read the Spin code(for the new Propeller chip) attached to this thread:
http://forums.parallax.com/forums/default.aspx?f=25&m=126973
(Note that this only deals with READING from the card, yet)

In fact, the best way to use such card for writing is to make certain that it is completely empty(format it on a PC), then create a large file on it. That will make certain the file is continuous(saves you a lot of work traversing the FAT) so that you can just address the card directly.

Of course, if you don't need to read it on a PC, only on the BS2, you won't need ot worry about using the FAT and can make up your own storage scheme.

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Don't visit my new website...

PJAllen

http://www.buy.com/prod/Crucial_Hi_Speed_USB_SD_MMC_Card_Reader/q/loc/101/10412013.html