Envelope-to: craig@sbc-85.com
Delivery-date: Thu, 25 Apr 2024 16:42:37 -0500
Date: Thu, 25 Apr 2024 21:42:21 +0000
To: craig@sbc-85.com
From: Herbert Johnson <hjohnson@retrotechnology.com>
Subject: Re: pro-log floppy disk controller STD bus - manuals
Message-ID: <0c67d954-fa72-45b1-b18d-a3a100030590@retrotechnology.com>
In-Reply-To: <0f8601da9758$182d7740$488865c0$@sbc-85.com>
References: <099201da9056$aca20f20$05e62d60$@sbc-85.com> <78e20a5c-7334-4a1a-8040-15cafe2894c0@retrotechnology.com> <0a2001da9060$3218d7c0$964a8740$@sbc-85.com> <8df357fb-9760-46c6-9ad8-095432233ad1@retrotechnology.com> <0ea701da9746$c5ff78d0$51fe6a70$@sbc-85.com> <c35e48c7-da60-44f0-b7bc-5969d0bd1ac1@retrotechnology.com> <0f8601da9758$182d7740$488865c0$@sbc-85.com>
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Well, you got my scans I hope, I did not expect to find them=20
immediately. So your 8500 is like my 7387, they use the same disk=20
controller chip. They are clearly different PCB layouts. I don't have=20
docs for the 8500 at the chip level. You might compare TTL ICs on each=20
board and make some decision if docs for the 7387 help you with your 8500.

On 4/25/2024 5:32 PM, craig@sbc-85.com wrote:
> Hi Herb,
>=20
> Component side photo of SB8500A
>=20
> Regards
> craig
>=20
> -----Original Message-----
> From: Herbert Johnson <hjohnson@retrotechnology.com>
> Sent: Thursday, April 25, 2024 1:23 PM
> To: craig@sbc-85.com
> Subject: Re: pro-log floppy disk controller STD bus - manuals
>=20
> Send a photo of your SB8500A that clearly shows the markings on the IC's.=
 Then I can use that myself, to look at my docs, to see what might be relev=
ant.
>=20
>> Micro/Sys Product binder with 2, 4, 6 pages per product:
>=20
> I'll see if I can find that binder. All this stuff isn't on shelves like =
a library, when I get inquires every several years.
>=20
> Regards Herb
>=20
> On 4/25/2024 3:28 PM, craig@sbc-85.com wrote:
>> Hi Herb,
>>
>> The easy one to decide is the Micro/sys SB8420 serial board manual, yes =
I would like to buy that so I can get my hardware going.
>>
>> Next up is the floppy controller.   My Micro/sys floppy controller is ma=
rked as a SB8500A, I am trying to figure out the difference between the 850=
0A and 8510.  You have a binder that has product sheets for the 8500 and 85=
10.  I would like to just buy the product pages for the 8510 first to see h=
ow close it is to the 8500.
>>
>> For the pro-log manuals, lets hold off on the manuals until you get a ch=
ance to look through what cards you have to sell.
>>
>> Thanks,
>>
>> Craig
>>
>> -----Original Message-----
>> From: Herbert Johnson <hjohnson@retrotechnology.com>
>> Sent: Thursday, April 25, 2024 10:58 AM
>> To: craig@sbc-85.com
>> Subject: Re: pro-log floppy disk controller STD bus - manuals
>>
>> It took time to review my manuals. here's results. I have not reviewed
>> my available STDbus cards, that will happen soon. Prices for PDFs of
>> manuals to be determined based on page count and fuss. Bound manuals
>> are more fuss. I assume you want PDF's of all of these manuals -
>> unless you tell me otherwise, soon. It will take time to make these
>> PDF's. - regards Herb
>>
>> On 4/16/2024 8:42 PM, craig@sbc-85.com wrote:
>>> Thanks Herb
>>>
>>> Regarding these micro/sys guides, are these full user's manuals or just=
 the 2-4 page sales/spec sheets?
>>>
>>> Micro/Sys CP/M User's guide
>>> Micro/Sys SB8420 dual serial card guide Micro/Sys SB8341 DMA
>>> controller guide Micro/Sys SB8510 Floppy controller guide
>>>
>>> I have the micro/sys serial card and floppy controller, but could use
>>> schematics and drivers  (and CP/M for that matter)
>>>
>>> for pro-log, you have the 7387 and 7388 manuals and the 7387A card.  Di=
d the 7388 also use the uPD765 disk controller like the 7387?
>>>
>>> Thanks
>>> craig
>>
>> Micro/Sys manuals are single-sided printed, unbound (3-ring binder)
>>
>> Micro/Sys CP/M User's guide - several tens of  pages, majority source co=
de.
>> Micro/Sys SB8420 dual serial card reference manual -dozen-plus pages, sc=
hematics, code.
>> Micro/Sys SB8341 DMA controller reference manual - dozen plus pages, sch=
ematics, code Micro/Sys SB8510 Floppy controller reference manual - tens of=
 pages, schematics, code.
>>
>> Pro-log manuals are double-sided printed, bound (like a paperback
>> book), harder to scan
>>
>> Prolog 7387 Floppy disk controller User's Manual - 50 plus pages,
>> schematic, layout. hand-assemble 8080 code. Discussion on uPD765 8272
>> FDC chip operations, single density 8" 5.25" drive operation. 12 pages
>> of handwritten/assembled code
>>
>> Prolog 7388 double-density  Floppy disk controller card user's manual.
>> - order of 100 pages, schematic, layout. Discussion on
>> 8237 / 2793 FDC chip and 8237A DMA chip operations and details at TTL
>> chip level. 8" and 5.25" drive operation. ten pages of
>> handwritten/assembled code
>>
>> Regards Herb
>>
>> --
>> Herb Johnson, New Jersey USA
>> http://www.retrotechnology.com or .net preserve and restore 1970's
>> personal computing
>> email: hjohnson @ retrotechnology dot com or try later at herbjohnson
>> @ comcast dot net
>>
>>
>=20
> --
> Herb Johnson, New Jersey USA
> http://www.retrotechnology.com or .net
> preserve and restore 1970's personal computing
> email: hjohnson @ retrotechnology dot com or try later at herbjohnson @ c=
omcast dot net
>=20

--=20
Herb Johnson, New Jersey USA
http://www.retrotechnology.com or .net
preserve and restore 1970's personal computing
email: hjohnson @ retrotechnology dot com
or try later at herbjohnson @ comcast dot net