If you download the SerialBlaster program from the downloads section of this
newsgroup you can look at the commented disassembly of the ROM boot code.
-Curtis.
On March 2, 2006 04:04 am, Lennert Buytenhek wrote:
> On Wed, Mar 01, 2006 at 09:48:33PM -0800, anand bhavnani wrote:
>
> > Hi all,
>
> Hello,
>
>
> > can anyone tell what is the size of internal ROM...on the EP9302
>
> The mask ROM inside the EP9302 is 16 kilobytes. This is the part that
> does the boot from serial/SPI/memory/etc that is described in the EP93xx
> data sheets.
>
> The TS7250 has NAND flash, and the EP93xx (and many other CPUs) can't
> boot directly off NAND flash, so that's probably why (I'm taking your
> word on that, I didn't check the board too closely myself) there is an
> additional EEPROM on the board (containing the TS-NANDBOOT code) from
> which the CPU can boot, to load the 'real' boot loader and Redboot after
> that.
>
> Does that make sense?
>
>
> cheers,
> Lennert
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
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