interfacing sd card to 8051

[glenston]

Hi

Im working on a project where i need to interface a nonvolatile memory device.
NV rams are expensive . So plan to go ahead with sd cards or some flash memory devices. Any suggestions on which is better?

Thanks

---------- Post added at 08:58 ---------- Previous post was at 08:53 ----------

Sram can be used with P0 n P2 as lines for address n data. Can the same be done with sd ram and flash?
Or is spi / uart necessary?

 

[ckshivaram]

SD card should be used using SPI protocol.. So first find out that if the controller supports SPI or not.... you can interface MMC or SD card......

 

[klystron]

Refer to https://www.edaboard.com/threads/53490/

 

[ckshivaram]

Check this
Design with Microcontrollers: SD/SDHC Card Interfacing with ATmega8 /32 (FAT32 implementation)