AT90S2313 | AT90S8515 | ATMega | ATmega128 | ECL | FETS | IAR | Keyboard | LCD | STK50 | TMOS | UART

I have an Atmega640 (also have a couple 64's) here and would like to
gather some data from SPI/analog devices and record the data in a text
file on an SD card. I've searched around for routines on writing to an
SD card, but for everyone I've seen that says it works, there's another
saying that it doesn't work.
Has anyone actually done this (write to an SD card) that can if nothing
else point me in the right direction? I don't want to spend a lot of
time to find out the method I'm trying to replicate won't work as I'm
sure you understand.
Thanks in advance.
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Hi Jake,

I found a couple of Atmega ones by using Google.
Try "sd_reader" and "MMC+Atmega". Both work on Atmega32 and above and
use FAT16 file system.

If you have no luck let us know and I will see if I can find the URLs
again.

I use VMLAB for developing and testing code and have a "reasonable" DLL
SDCARD plugin that I wrote. You can get binary SDCARD images off the
net to do some testing against before you go to Hardware.

Futurlec sell mini-boards for SDCARD reader and 3.3V level converter.

Ray
Perth Western Australia
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