kar2on
Member level 1

I was just wondering whether or not a piece of hardware setup to perform MMC read/writes would do the same for SD cards. I actually have a hardware setup to perform read/writes on MMC but when I plug in my SD nothing seems to happen, after a couple of card pulls and pushs I manage to get one sector to be written, according. According to the Sanddisk product manual a card operaing in SPI, the pins are pretty different, SD allocates the first 7 pins for SPI mode, these do not correspond to the 7 pins of a MMC card if the same socket is used.
EDIT:
sorry after reading the specs again, I see that the pin assignments do match. But i'm still unable to perform a proper read/write cycle with my SD card.
EDIT:
sorry after reading the specs again, I see that the pin assignments do match. But i'm still unable to perform a proper read/write cycle with my SD card.