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Re: NAND connection to C6727

Started by Jeff Brower September 4, 2008
Mike-

> On Thu, Sep 4, 2008 at 11:12 AM, Jeff Brower wrote:
> > David-
> >
> >> > >> sgId722/stime20534259/nc1E07179/nc2848641/nc3R02317> Has
> >
> >> anyone connected a NAND memory device to as C6727? If so what should I
> >> be aware of? I would like to load a small bootloader into the processor
> >> from the SPI port and then retrieve the rest of my application from a
> >> NAND flash. I would typically use a NOR flash, but I am real estate
> >> limited and need more FLASH density.
> >
> > Mike's suggestions sound really good.
> >
> > How are connecting the NAND Flash? I assume via EMIF?
> >
> > Have you thought about using a combined NOR + NAND Flash device? There are
> > some small ones out there, Spansion is one
> > example. If you use that method, then you could boot code from NOR Flash and
> > then access NAND Flash as needed for
> > data purposes. Plus this would save a serial port.
>
> I believe that you would have to boot from the NOR flash - I do not
> think that the 672x has a 'NAND flash boot mode'.

Yes, that's what I mean. The "combination" devices I've seen contain both NOR and
NAND Flash. "Standard" code boot from NOR Flash is one of the main advertised
features. NAND access on these devices is intended to be used only for data.

-Jeff