More Bringing up a CPM

From: Allison J Parent <allisonp_at_world.std.com>
Date: Tue Jun 1 18:19:37 1999

<refresh isn't the issue. Since the data isn't modified at
<all by the DMA, I'd think it was a missing WR strobe or
<not getting the address there at the right time.

See if the controller set is generating Mwrite/?

< I tend to agree here but in this case, I have 4 ea 8K, 4 ea 4K
<and one 16K static cards. I can replace this with one 64K card
<if I get the DMA write and read to work correctly. As I said,
<these cards are old and I've already had failures with less than
<20 hours of trying to bring it back up.

So, failures are to be expected and ones they've run a while you will have
cooked out the soft parts.

< It has a terminator card in it. Since this also has voltage
<regulators on it, it might even be a source of problems as well.
<I'll loke at it as well.

Why would that be a problem if it has regulators? Assumeing of course they
arent fried.

Allison
Received on Tue Jun 01 1999 - 18:19:37 BST

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