Dear all, I found an answer by myself: there are still enough mmc2 lines to connect a second SD card and talk with it by SD-card 4 bit protocol, so there is no reason to use the SPI bus to connect a second SD card. In principle, the mmc2 should work as the mmc0: it should recognize automatically the SD card.
Regards. Alberto Il giorno martedì 14 gennaio 2014 12:50:19 UTC+1, Alberto Potenza ha scritto: > > Dear all, > I have a question about SPI and SD card. I've already seen a couple of > posts with a similar question but the answer is not fully clear to me. > I have a beaglebone black. > I am booting from SD card. > I am using the GPMC bus. > > I would like to use the SPI1 lines to connect another SD card. > I would like to know if there is a sort of driver which allows me to see > the second SD card as a common external memory. > > I already wrote a C program to talk with the SD card via SPI1 (simple > commands such as CMD0, CMD8 etc..etc) but I think (hope) that there is a > driver to have the SD card seen as an external memory. > > Thanks for your help. > > Regards. > > Alberto. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
