Re: 68PCM-55
On Mon, 23 Oct 1995 HugoHH@aol.com wrote:
> Dear Sirs:
>
> Mr Penio Penv told me to becacome a subsriber in order to
> post message in your place. I sent 1 MSG. with one ZIP
> file to him. He told got me, he got the MSG. didn't mention
> the ZIP file. Is there proto-col needed for the ZIP file, I knew
> there is no ZIP file in MISC. I am not too sure in the other tree
> directory ( I look them once ).
I have extracted the files from the .zip archive and am attaching them
here. One of the files is gzip-ped.
--
Penio Penev <Penev@pisa.Rockefeller.edu> 1-212-327-7423
---
From HugoHH@aol.comMon Oct 23 20:33:52 1995
Date: Thu, 19 Oct 1995 08:20:39 -0400
From: HugoHH@aol.com
To: Penev@venezia
Cc: Misc@aol.com
Subject: PCMCIA header PC-board
MISC Fans
After read most of MISC past posting, PCMCIA card would be a
nice thing to have for MuP21 board. I collect lot stuff on the
PCMCIA , and play with it for quite while. may be I can do little
contributions to the group, here attaches a PCMCIA header
PC-board lay-out in Postscript file, ( 68PCM-55.zip ) with this
email, I hope it can get through. There are some doc. in there,
hope can help you. This is first part. the 2nd. part is on the way.
there just too much details, I try to put it as short as possible.
Hope don't bore you guys. 4th guy don't like to write, I am one of
them.
Make PC-board is a easy job now compare with the past. I 'll post
a separate just on that soon. Since MuP21 or F21 is fast
stuff, single-sided is 1st choice, but ! !. Most PCMCIA on
the market is double sided-board, I havn't seen a single-sided
yet, but this one is, not bad for a basement job,
This PCMCIA header PC-board got all 68 pin out put, MuP21
only use part of it, I use it play with Flash-Mem before. Flash-mem is
logically inverted of Eprom, may be that is another plus for the "
Century 21 " club. I guess Chuck just too far ahead again.
Flash-mem even follow his natural way, May be we can talk to Jeff
go that route, so program Eprom is not big issue no more.
from Hugo Hsiung < HugoHH@.aol.com >
PCMCIA-3.doc 68PCM-55.pst is a Postscript file for a single sided
traced printed circuit board(1:1 ), lay-out of PCMCIA header (all 68pin
output). You can print it out in a Laser printer. You can make PC-board
from this Laser PAPER Print out (don't touch traces ! !). see Note 1-6.
This is 1st part, its not only for MuP21, PCMCIA is a useful tool. Space
(1") on top is for passing traces, it reduce jumpers from 20 to less than
5 on the ROM adapter board ( single sided also), which comes later to MSIC
posting. It requires to match both, and need some more varify and testing.
There are two right-angle connctors (I got them for quarter) in 1st board.
The second part is a adapter to the 32pin ROM socket in the MuP21 board.
Which I got recently from Offete P21A3 ver. ( I'am catchup, not F21 yet).
For the practical purpose use of PCMCIA card, it is vertical to computer
board, so the PCMCIA card can be pushed-in and REMOVEd easily.
The ROM Adapter: Remove exsisting 32 pin chip.( precuation to
static charge). put chip in the 32pin ROM scoket on the adapter card,
with the vertical mounted PCMCIA socket, then put this adapter card back
to the same ROM scoket. The adpter board is extended above and over the
P21 CPU chip. There will be some soft spacer above the P21 CPU. and under
the adapter board for physical support, as long as you don't smash it,
every thing should be peaceful. These my approach to live with the world,
hope the details are not bore you to death, and more to come. If any
other solutions, suggestions and let us know. By the way there is a
hardware toggle switch to switch between ROM or PCMCIA card for CPU.
Note: 1: Use shining type paper, because there are lot of 15mil traces.
2: Make the PC board following the POST I put on the MISC.
3: If you don't have Laser printer ( I don't), you can go to Kinko copy
shop use their computer and Laser printer, and print it out for 50
cents). use same shining paper, and make copy of ( Kodak off-shore
machine, 7 cents. Kinko copy machine normally use low cost paper)
4: 68pcm-55.pst use 0.9 setlinewidth in postscript drive(more thread).
5: This lay out of the PCMCIA is not only for Fujitsu. ( PN# FCN-
565p068-G/0 1990 and others ) AMP started making in 1993. Brands
differences only on mounting holes and thickness which is not factor
for this patch up usage. The industrial is prety much standardized
in hardwarewise on the 68 holes lay out, (not in SW, more thread )
This lay out will fit 6 brands I know of. at least. ( Method
Electronics PN# 940-121-68RA01-90 ). Because it's single header, so
you can get away with single sided board. and I don't think you can
on two stack header, which cost lot more. ( AMP single, PN# 53563-1
header, 146021-1 = release part.) This also true for Hirose part which
Jeff talk about. Don't drill the mounting hole until you solder
the header to the board ( Patch up proto type, not product). If you
not too sure, you can try out with header first ( header cost less,
PCMCIA header and its release mechanism are separable. CARE-ful ).
6: The PCMCIA header 68 holes are around .032", It requires high speed
Carbide tip drill, (It look like a dentist drill, get one look like
a milling machine drill, not regular drill look, which too easy to
break), The Carbide tip drill I got from surplus store or Hamfest
in Chicago area, 2 for $1.00. ( you can afford to breke it, but not
from Sears), I use a 10k RPM hand drill, mounts it on a Sears drill
stands. Then you need is patient and practice, that why I put out this
first. (use Heating Doc Tape to mask big copper area under back part)
7: There is a book title Design with Flash Memory. Author: Brian Dipert
and Markus Levy, from ANA Book. talk lot about PCMCIA card. I saw
MISC Post, some one ask about the book, and this is one of the answer
to it. ( also PCMCIA Developer's Guide. by M. Mori. ANA Book )
8: I got a POQET 1meg static memory card, I used it with my Sharp note-
book, for two year, it can boot PC up less a sec. this is fast boot I
had experienced ( more thread).
68PCM-55.PST.gz
