Message-ID: <12627@sri-arpa.UUCP>
Date: Mon, 20-Aug-84 11:08:00 EDT
Article-I.D.: sri-arpa.12627
Posted: Mon Aug 20 11:08:00 1984
Date-Received: Wed, 22-Aug-84 05:34:52 EDT
Lines: 12

I have recently acquired an Applied Engineering Z-80 Plus for my Apple II+.
When I use CPM 60 there appers to be a timing problem between the Z-80
and the 16K ram card.  The AE documentation states that this might be a problem
and that perhaps I shuld replace the ram card.  Has anyone else had this problemwith the AE card?  Will replacing the RAM card work?  AE has been really helpful and has sent me a replacement card, but I still have the same timing problem.
Any assistance will be appreciated.

Gene Cartier
Polaris Inc
1400 Wilson Blvd, Suite 1100
Arlington, Va  22209
(703) 527-7333
POLARIS@ISI.ARPA

Message-ID: <167@zps.UUCP>
Date: Tue, 28-Aug-84 02:55:26 EDT
Article-I.D.: zps.167
Posted: Tue Aug 28 02:55:26 1984
Date-Received: Thu, 23-Aug-84 00:50:00 EDT
References: sri-arpa.12627
Lines: 7


	What speed is the z80 running at?? If it's a Z80B then it is
	probably running at 6mhz and that is too fast for the apple ram!!


			scott miles
			zehntel!zps!digger

Message-ID: <12752@sri-arpa.UUCP>
Date: Thu, 23-Aug-84 18:49:03 EDT
Article-I.D.: sri-arpa.12752
Posted: Thu Aug 23 18:49:03 1984
Date-Received: Thu, 30-Aug-84 00:46:21 EDT
Lines: 9

From:  Dan Winkler 

 >         What speed is the z80 running at?? If it's a Z80B then it is
 >         probably running at 6mhz and that is too fast for the apple ram!!
  
I have a PCPI AppliCard which does indeed run at 6mhz (it's great!).  They
manage it by giving the card 64K of its own memory.  It also makes clever
use of the Apple memory -- it stores CPM there.  That way, it never needs
to go back to the system disk once it has booted.