How can i interface arduino uno with sd card using spi. And can this happen using only ATMEGA?
Here is a great tutorial on using SD cards with Arduino via SPI: http://learn.adafruit.com/adafruit-micro-sd-breakout-board-card-tutorial/intro
Here is the Arduino Library that they use in the tutorial: https://github.com/adafruit/SD
Here is the SD breakout board that they use: http://www.adafruit.com/products/254
Here are the schematics for the breakout board, if you'd rather make your own: https://github.com/adafruit/MicroSD-breakout-board
