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On 20/05/10 01:46, Matt Callow wrote: [...]
I think the E3 card reader is just done in software - bitbang on a couple of GPIO pins. So I think it should be possible to use if for SPI/MMC. I think USB is less likely
Bitbanging MMC is pretty grim. Although, now we have the FIQ handler less grim than it was...
Can one still get mass storage smartcards? The only ones I ever heard about were M-Systems' MegaSIM, which then became SanDisk's SIM5000, and then vanished completely.
And speaking of SPI --- isn't there a proper SPI interface somewhere inside? Like, one with a FIFO? Given that all SD and MMC cards support SPI, could this be used as an easy mass storage option (and hopefully a faster one than the smartcard interface).
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