Dual Eeprom? is it possible?

Archiver

would it be possible to hook a stamp up to two eeprom chips?

Archiver

For external data storage, sure. Use I2C parts and you can address
many, depending on the device.

-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office

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Original Message

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From: qaidskey [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=eAMu4g9P1VL6_DB9GUf_PEov_d8xBwf_-Z-85ay_tKPcsIyw8WH9CKCPYit68NP1o1viFFCV8cqi]qaidskey@y...[/url
Sent: Thursday, March 04, 2004 8:34 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Dual Eeprom? is it possible?


would it be possible to hook a stamp up to two eeprom chips?

Archiver

Yes, the SPI interface works well. That gives
you a data and clock line to both EEPROMS.
Now all you need is a separate chip select
per EEPROM, and you are good to go.

--- In basicstamps@yahoogroups.com, "qaidskey" <qaidskey@y...> wrote:
> would it be possible to hook a stamp up to two eeprom chips?

Archiver

s'cuse my ignorance, but what what's the SPI interface?


--- In basicstamps@yahoogroups.com, "Allan Lane" <allan.lane@h...>
wrote:
> Yes, the SPI interface works well. That gives
> you a data and clock line to both EEPROMS.
> Now all you need is a separate chip select
> per EEPROM, and you are good to go.
>
> --- In basicstamps@yahoogroups.com, "qaidskey" <qaidskey@y...>
wrote:
> > would it be possible to hook a stamp up to two eeprom chips?

Archiver

At 08:29 PM 3/5/04 +0000, qaidskey wrote:
>s'cuse my ignorance, but what what's the SPI interface?

SPI - Serial Peripheral Interface

It's a synchronous serial protocol and one uses the SHIFTIN/SHIFTOUT commands
to read and write to it.

Bruce Bates