Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ukma!xanth!nic.MR.NET!thor.acc.stolaf.edu!henning
From: henning@thor.acc.stolaf.edu (Mark D. Henning)
Newsgroups: comp.sys.amiga.tech
Subject: memboard help requested
Keywords: a1000 memory expansion help
Message-ID: <1686@thor.acc.stolaf.edu>
Date: 28 Mar 89 21:34:15 GMT
Organization: St. Olaf College; Northfield, MN
Lines: 34


good day, 

I am thinking about embarking on a fun project (i hope), being that I
want to build a memory board for my amiga 1000.  I do nees some
advice, however.  

1. what function do the 3 autoconfigure lines have.  How do I tell the
OS how much new memory is added, or does it do a memory test on
reboot.

2. I have figured out that I need to use 16 chips because of the 16
data port lines.  Aside from memory chips and buffer chips, are there
any other components I will need to consider.

3. If I were to think about adding a self-contained uart thus making a
serial port, how would I let the configure know about it. (Im sure
that I will ahve to make a custom driver for it, that, i'm not worried
about.)

4. If anyone has an idea how to make the battery backed up clock taht
the 501 board uses, I would also like that option.

I want to do this for several reasons.  First and foremost is the fun
of finally being able to make something hardware related for a machine
(i prevoiusly had a c128 which made hardware addons very limited!)
Also, the prices of prefab memory boards are outrageous!

Any help or insites would be appriciated.   Thanks in advance.
			
						-henning

Internet: henning@stolaf.edu
uucp: ..uunet!solaf.edu!henning