Path: utzoo!mnetor!tmsoft!torsqnt!hybrid!scifi!bywater!uunet!cbmvax!daveh
From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.misc
Subject: Re: A3000 questions and comments
Message-ID: <19800@cbmvax.commodore.com>
Date: 13 Mar 91 03:15:20 GMT
References: <21104@know.pws.bull.com> <19126@cbmvax.commodore.com> <14600@mcdphx.phx.mcd.mot.com> <27@dworkin.UUCP>
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Organization: Commodore, West Chester, PA
Lines: 44

In article <27@dworkin.UUCP> trasc@dworkin.UUCP (James Trascapoulos) writes:
>rticle <19126@cbmvax.commodore.com> daveh@cbmvax.commodore.com
>A>(Dave Haynie) writes:

>>>SetRamsey was a toy to play around with various Ramsey (A3000 Fast RAM 
>>>controller) settings .... You don't need it, and it can get you into 
>>>trouble if you set things up wrong.

>>... my A3000 has static column chips, SetRamsey tells me that static column 
>>mode is off. Does it still report the current settings correctly?

>Same here! I've got 2 megs Chip and 4 more 1Mx4 Static 70ns ZIPs, and
>SetRamsey tells me that:

OK, for the last time....

	This is SetRamsey		"1> SetRamsey"
	This is your A3000 on SetRamsey	"READ/WRITE ERROR"

Any questions?

As I must have said 100 times this month, THROW SETRAMSEY AWAY.  It does not
use the proper names for the Ramsey register bits.  What it calls "Static
Column Mode" is NOT specifically Static Column Mode.  There are two modes
that require static column DRAMs -- Page Detect Mode and Burst Mode.  In the
current revision of Ramsey, a bug in Page Detect Mode causes a failure in
conjunction with hard disk activity (technically speaking, TRP on the DRAMs
will occasionally come out as 40ns, rather than the 80ns most DRAM want).  
Burst mode works just dandy, and it is automatically set up by the OS.  

>>But the question remains, is my A3000 making use of the static column
>>mode of my RAM?

>Words off MY lips too...

If you put static column DRAMs in the A3000's Fast RAM bus, the A3000 will
use static column features under 2.0.  Automatically.  Don't you guys have
anything real to worry about :-)


-- 
Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: hazy     BIX: hazy
	"What works for me might work for you"	-Jimmy Buffett