Re: Gravitar Rev 3??

Ok, the files in the 'Revision 2' archive show that ROM 210 is 2,048 bytes long
(16K). I understand that the 210 ROM is supposed to be the same between the two
revisions, but if you look at the 'Revision 3' archive, ROM 210 is 4,096 bytes
long (32K). A quick check in a hex editor shows the additional 2,048 bytes are
filled with FFs, so I'm wondering if the board needs to be configured to use a
2732 EPROM in location L7. (is there even a way to configure the board??) Or do
I just stick with a 2716?

Unfortunately, my Gravitar board has no ROMs on it, so it's not easy to tell
what sizes go where :)

So, can I safely assume this would be an accurate account of the Gravitar
Revision 3 ROMs?

------------------
Gravitar Revision 3 ROMs

LOCATION FILE EPROM CHECKSUM
------------- ------ --------- --------------
D1 136010.301 2532 0xa2a55013
E/F1 136010.302 2532 0xd3700b3c
H1 136010.303 2532 0x8e12e3e0
J1 136010.304 2532 0x467ad5da
K/L1 136010.305 2532 0x840603af
M1 136010.306 2532 0x3f3805ad

M/N7 136010.207 2532 0x4135629a
N/P7 136010.208 2532 0x358f25d9
R7 136010.309 2532 0x4ac78df4
L7 136010.210 2716 0xdebcb243

----------------------

Zonn wrote:

> On Sat, 30 Dec 2000 21:23:08 -0800, Zonn <zonn@zonn.com> wrote:
>
> >On Sat, 30 Dec 2000 22:42:06 -0600, Tom McClintock <tomm@mgcap.com> wrote:
> >
> >>I was getting ready to write some Gravitar EPROMs, and thought the
> >>'Revision 3' ROM images would be the best choice to use. However, there
> >>is no documentation with the ROM set, and I'm curious to know if all the
> >>EPROMs should be 2532s, or is the vector ROM 210 still supposed to be
> >>burned on a 2716?
> >
> >You should be able to tell by the size of the ROM image file..
> >
> >2732's are 4096 bytes long and 2716's are 2048 bytes.
>
> Oh yeah, and 2532's and 2732's are the same size...
>
> -Zonn
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Received on Sun Dec 31 12:39:10 2000