source=Padu says: > Does that mean that if I'm implementing a data logger I have to store information on an internal buffer memory until I have 512 bytes and then move the whole block? In memory mode, you send the write sector command and then the 512 bytes as slow as you want. It seems the card only actually flashes the content of its internal buffer when you complete the 512 sector. If you send another command or unpower it, that information will be lost. Regards, Moises Cambra _______________________________________________ http://www.piclist.com View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist