I also though how nice it would be to have a data
logger and it does not appear to be that difficult for

collecting

data

and
storing x amount of time in epprom - or (I haven't explored

it)

but

persumably there are just eeprom chips out there for

storage of

massive

amounts of data.

You might consider compact flash. It would be easily removable

from

the plane for downloading into a computer at home. I just saw

a 1

gig

CF, and that is a massive amount of data. 128 Mb is a standard

consumer

item now.

David

David, do you have a web site for the item or just search

"Compact

Flash"?

Ed

I suspect the flash card interface is PC bus oriented.
My guess it is has a 32 bit multiplexed address and data buss.
As such it is too complicated to interface to for an embedded
Harvard architecture  processors such as the PIC.
I could be wrong. There could be a single chip solution out
there for this problem. I checked in the latest issue of Nuts
and Volts and Micromint and saw nothing. I think you would be better

off

going with the serial EEPROM 8 pin mini dip and download
the data through an RS232. Off the shelf RS232 to USB adapters
are also available.

Paul Lamar

Peter Keen wrote:

don't know if i'm replying correctly, but mmc (multimedia cards) have

a

small form factor and they interface w/ I2C, a two wire addressed bus.

this

would make it much simpler to interface with a microcontroller.

peter

[Todd Carrico]
Found this on another list:
http://www.chipcenter.com/circuitcellar/february01/c0201ms1.htm

Looks like 17 pins to interface, more like IDE.  That advantage would be
the portability.  Lots of things can read Compact Flash.

tc

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