7 Feb
2012
7 Feb
'12
4:22 a.m.
----- Original Message:
Date: Wed, 01 Feb 2012 17:04:13 -0800
From: "Chuck Guzis" <cclist at sydex.com>
On 1 Feb 2012 at 16:46, Fred Cisin wrote:
In XenoCopy, I did a few other formats besides CP/M,
such as P-System,
"Stand-Alone-BASIC", Coco, etc. But, ONLY ones that could be done with
PC hardware.
Alas, for the OSI, you will need to build some hardware to read them.
I do NOT know the details, but I've heard that that hardware can be
built around a UART!
Could be done with a pulse-timer board, such as a Catweasel pretty
easily. Or a small MCU with its built-in UART could also do the
trick. Moving heads, etc. is simple. To see what OSI used for data
separators and other interface, I believe that somone has a Sam's
Photofact online for the C4P showing schematics and timings.
--Chuck
------ Reply:
Thanks, guys! Now that you've jogged the gray cells I seem to remember
something about that 6850 kludge.
I was trying to locate a boot disk image for someone and was told that you
couldn't do it on a PC so, being from Missouri (Canada) I just wanted to
confirm that is indeed the case.
7 Feb
7 Feb
7:09 a.m.
Chuck writes about reading OSI disks:
Could be done with a pulse-timer board, such as a
Catweasel pretty
easily.
Yes.
Or a small MCU with its built-in UART could also do
the trick.
Generally not. While the OSI did use an ordinary asynchronous UART for
the FDC data path, it also had additional hardware to do FM encode and
decode, so you can't just use a UART in a microcontroller to read the
data, unless you implement the FM decode in additional hardware.
Eric
5:46 p.m.
On 6 Feb 2012 at 23:09, Eric Smith wrote:
Generally not. While the OSI did use an ordinary
asynchronous UART
for the FDC data path, it also had additional hardware to do FM encode
and decode, so you can't just use a UART in a microcontroller to read
the data, unless you implement the FM decode in additional hardware.
I did mention the one-shot data separator and referred the OP to the
C4P schematics. I grovel for forgiveness for not including a circuit
diagram and assuming that the poster could fill in the blanks.
C'mon, Eric, you know what I was saying.
--Chuck
15 Feb
15 Feb
1:17 a.m.
New subject: List (Was: Imaging OSI disks
Has the list gone down?
I haven't received anything in 5 days.
17 Feb
17 Feb
7:50 p.m.
New subject: List (Was: Imaging OSI disks
On Feb 14, 2012, at 8:17 PM, Fred Cisin wrote:
Has the list gone down?
I haven't received anything in 5 days.
Yes, I noticed my productivity had increased as well. :-)
classiccmp.org (the website, and presumably the entire host) was down for a while as well,
but appears to have revived.
- Dave
10:03 p.m.
New subject: List (Was: Imaging OSI disks
Someone realized they forgot to plug back in whatever that cable was after
they got done using the outlet for the vaccume....
On Feb 17, 2012 4:52 PM, "David Riley" <fraveydank at gmail.com> wrote:
On Feb 14, 2012, at 8:17 PM, Fred Cisin wrote:
Has the list gone down?
I haven't received anything in 5 days.
Yes, I noticed my productivity had increased as well. :-)
classiccmp.org (the website, and presumably the entire host) was down for
a while as well, but appears to have revived.
- Dave
8:35 p.m.
New subject: List (Was: Imaging OSI disks
-----Oorspronkelijk bericht-----
Van: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org]
Namens Fred Cisin
Verzonden: woensdag 15 februari 2012 2:17
Aan: General Discussion: On-Topic and Off-Topic Posts
Onderwerp: List (Was: Imaging OSI disks
Has the list gone down?
I haven't received anything in 5 days.
Yep, but now it's online again... Yipie !!
-Rik
4698
days inactive
4708
days old
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