Re: Do I have to use a ARM MCU with EMI to use external flash and DRAM?



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"jetq88" <jetq5188@xxxxxxxxx> wrote in message
news:1159375445.766281.212270@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
can AT91SAM7X256 have external flash and DRAM? AT91SAM7X256doesn't have
EMI(external memory interface) , is it possible to extend external
flash and DRAM? thanks

The SAM7X does not have an external data bus or address bus as far as I am
aware so your only options are serial devices for a little more flash, or a
very slow bit banged interface though an IO port. Neither of these are any
good for executing code. I believe there is an equivalent part that has an
external bus - why not use that?

Regards,
Richard.

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