I want to use 16,32 or 64 mb mmc or sd card to save log file and some constant and glcd image codes.

Do you help me about this problem.
I searched on internet but I only find MMC/SD card reader with RS-232 inteface. I dont want to use rs-232, I only use it as storage device for pic micro.

Another question:
can I change code inside the Pic, without programming it again. I heard that 18f series can do it but how??

Thanks for your helps

Hasan...