16 Feb
2008
16 Feb
'08
3:12 p.m.
Philip Pemberton wrote:
It's almost, but not exactly the same. Actually,
the DIMMs are more
likely to
be 16Mx64 -- four sets of 16 bits.
The ones I have that _don't_ do ECC would indeed be 16Mx64. I'd not want
the
design to use the ECC, just not object to it (assuming it would even
notice).
Connecting everything up so you could use all the RAM
would involve
a much bigger (higher pin count) FPGA than I've got on the board
now...
I get exactly the same story from the VLSI guys at work (although they
usually claim to have run out of gates first :-)).
Also, SDRAM DIMMs of the SDR variety aren't as
easy to come by as they
once
I have plenty of 128MB ones. A few 32/64/512MB ones too. I certainly
have more
spare SDRAM than ever I did SIMMs.
If the memory isn't going to be socketed, then I'll not worry about it.
Although we do use Altera stuff at work ... must go and ask about
samples
some time ...
Antonio
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