| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 4069.1 | | WELSWS::FINNIS | | Fri Aug 31 1990 20:48 | 7 |
|
Checkout Cheapram.* on TAPE:: for what it's worth....
- Pete -
( Who would sooner put the chips on a real board )
|
| 4069.2 | readme first | PEEVAX::LAWSON | | Sun Sep 02 1990 19:40 | 30 |
| I built up an adapter based on the CHEAPRAM project. The 2/4 meg
boards looked really great in that all of the signals matched up.
I did a couple of iterations of the design and got to one that sort of
worked in that I got the occasional guru message. I saw this as
pleasing in that at least I wasn't completley screwing up the memory
timing etc.
I set out to put this thing INSIDE my A500. This necessitated the
soldering of about 30 wires to various chips inside the A500. These
wires were about 30cm (1 foot) long.
Why didn't it work? (pick one or more)
1. no decoupling caps on my chips (lazy)
2. crosstalk/noise on these long wires
3. propagation delay (1.5 nsec/inch)
4. overloading the output on the ram chips ( had to parallel up the
data outs)
I still believe that the design will work.
Then I bought an A2500 w 3meg and thought "WTF" (not window to front)
havent touched it since. I think I've still got the design around. if
you want it, ask and i'll send it via internal mail.
cheers,
Glenn
|
| 4069.3 | How to access TAPE::Cheapram.*??? | 11SRUS::HUDSON | Innocent til proven guilty | Tue Sep 04 1990 18:35 | 10 |
| Pete,
What does Cheapram.* include as far as documentation goes,
and how do I get to it??? I tried to copy it over to my system
using the copy command 'COPY TAPE::CHEAPRAM.* *.*' and it couldn't
find anything by that name. Any help would be appreciatted.
- Phil
(One who is in the same boat as Kirby)
|
| 4069.4 | TAPE Offline | WELSWS::FINNIS | | Fri Sep 07 1990 09:37 | 6 |
| TAPE:: is off line at the moment..
Try wjg::amiga:cheapram.*
-= Pete =-
|
| 4069.5 | | ELWOOD::PETERS | | Sat Sep 08 1990 09:30 | 6 |
|
TAPE:: is Back...
Steve
|
| 4069.6 | Where did you say it was? | ACESMK::GUROS | | Thu Sep 13 1990 16:25 | 5 |
| Hmmmm, Where is this cheapram stuff? I can't find it on either TAPE:: or
WJG::
Thanks in advance
Larry
|
| 4069.7 | Is too on TAPE:: | WELSWS::FINNIS | | Thu Sep 13 1990 20:00 | 9 |
|
Cheapram Location
TAPE::user2:[upload]cheapram.lzh
-=Pete=-
|