Return-Path: Delivered-To: craig@sbc-85.com Received: from gator4254.hostgator.com by gator4254.hostgator.com with LMTP id iIYdM/SJhWa/cwQAcizydQ (envelope-from ) for ; Wed, 03 Jul 2024 12:27:16 -0500 Return-path: Envelope-to: craig@sbc-85.com Delivery-date: Wed, 03 Jul 2024 12:27:16 -0500 Received: from p-impout001aa.msg.pkvw.co.charter.net ([47.43.26.132]:55001 helo=p-impout001.msg.pkvw.co.charter.net) by gator4254.hostgator.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96.2) (envelope-from ) id 1sP3lD-001Kas-1L for craig@sbc-85.com; Wed, 03 Jul 2024 12:27:16 -0500 Received: from GeorgeAdams ([174.97.1.103]) by cmsmtp with ESMTPA id P3l1sScsDADzrP3l2sHaUi; Wed, 03 Jul 2024 17:27:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cinci.rr.com; s=c20240129; t=1720027624; bh=2TBWlIaSqZdGfnr9oiJigaxuDYR8uoTrrNzDsbWhQHU=; h=From:To:References:In-Reply-To:Subject:Date; b=ZTTV4AIWl9qSEIswXsCZmHb0fraMkJuoHJETyXZMMPKDz328Weq/hiaP++Tmscg74 JTwSQ6J7cdX5Gp3cNX78hXqjg/Cj19155yc1/Hb7y7dPIU6RxShkNiZB283B75ecpD aSr9PCojlvaCAX5R+8Je/qrUdIyzwIZAFfBlutaS2cgcSxpr9FyDvXGF0SefdBzYZp l2u+M9JAXfV610OX/qxhWwUvFId/TEass4Xv4UtC1bRP8e2Cd08QygPdqCzLfhlm2H UpP4CSGax9XMA4eNrTbr9hAbkI6jgq3AEStvCFt/jvBs/Cavk9MOc6jJaDEO8HP1vw kFZHs6/HzismQ== X-Authority-Analysis: v=2.4 cv=Y5H+sAeN c=1 sm=1 tr=0 ts=668589e8 a=OzurZGb7dcUwVJBQbH0rwg==:117 a=OzurZGb7dcUwVJBQbH0rwg==:17 a=DAwyPP_o2Byb1YXLmDAA:9 a=HjitWDSJAAAA:8 a=ayC55rCoAAAA:8 a=NEAV23lmAAAA:8 a=_6GpL_ENAAAA:8 a=7dgJBbP7nbE6L8j9rTUA:9 a=QEXdDO2ut3YA:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=4d2D4LtiAAAA:8 a=l7d-tmVR7eXLQy6Z2lEA:9 a=1f1-gSEAJp5vgwoE:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 a=lqcHg5cX4UMA:10 a=IB1QFG2aBfq3amWdyr0s:22 a=hJnrvW8ITIrk0Oi8sSDQ:22 From: To: "'SBC-85'" References: <000201dacc1e$39ec3ec0$adc4bc40$@cinci.rr.com> In-Reply-To: Subject: RE: 8755 programmer update Date: Wed, 3 Jul 2024 13:27:03 -0400 Message-ID: <000001dacd6e$38ec7c50$aac574f0$@cinci.rr.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01DACD4C.B1DD4D50" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQH5J4N3g1vXniVTzfqvFyAe126xiQFNnzHEsZ4dM0A= Content-Language: en-us X-Antivirus: Avast (VPS 240703-2, 7/3/2024), Outbound message X-Antivirus-Status: Clean X-CMAE-Envelope: MS4xfAbLxZYhuosQ9dzmWUVXYNWWcxqik+fEnZCyV9pp1GgjWBAjU9WlIBvXadzGeNTgZyrVm44ub/ICTflBDHMqA7GX8zx+0Lc5s2+LcFH5LmDg5gqEbXwA Tu6bo87jAQQ/yJkcTfUxw7uQRQ3OXN57knBpw2S0PVB2NxlXGGq3rmNWcvZ2p+aZeLCFgVv2DNPWxg== X-Spam-Status: No, score=-0.6 X-Spam-Score: -5 X-Spam-Bar: / X-Spam-Flag: NO This is a multipart message in MIME format. ------=_NextPart_000_0001_01DACD4C.B1DD4D50 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Craig, What I should have done on the programmer pcb, is jumpers to allow the sele= ction of the power and ground connections. But, connection to the 26 pin po= rts requires an update to the eprom i/o due to the 8755 and 8155 mapping of= the ports. Probably not worth dealing with, for now. Can you make available the design files for the 26 pin and 34 pin protoboar= ds? I can=E2=80=99t seem to find them on tindie or in your site=E2=80=99s d= ocumentation link. I am close to another pcb order, and wanted to put these= in on the order. Thanks Again, Regards, George From: SBC-85 Sent: Wednesday, July 3, 2024 12:20 PM To: adamsgl@cinci.rr.com Subject: Re: 8755 programmer update Very nice project. The I/o ports on my boards is a bit of an embarrassment The first one was to make the layout easy because the board was so tight. T= he power and gnd were at opposite ends of the header. Then I switched the = pole and grounds to be the same on diagonal so if plugged in backwards the = 5/gnd were the same so it would not immediately blow out whatever was plugg= ed in. Maybe I should have matched the SDK-85 on that board. I never got into PL/M , probably too late to rewire my brain. Looks like you nearly have this project wrapped up! Regards Craig On Jul 1, 2024, at 6:22=E2=80=AFPM, adamsgl@cinci.rr.com wrote: =EF=BB=BF Craig, I have the 8755 programmer that was in the link I sent previously operation= al. Here are a few pictures: Programmer attached to the SBC85+. It only works on the 34 pin connectors, = as I didn=E2=80=99t catch the pins 1,2 power reversal on the 26 pin connect= ors when I updated the board. The hex spacers are to attach the display board, (next picture) Only 4 are used to hold the display board, the rest are to support it when = using the keyboard. Here is the SBC85+ with the display board attached. There are only 4 spacer= s attaching the display to the cpu board. Here is a screenshot of the software. I have modified the code to include d= isplaying the buffer contents. I have a intel hex loader in the ZIF socket on the cpu board. I use this to= upload the eprom manger software to the 6264 ram chip and run the eprom so= ftware from there. Testing is nearly completed, and it works great. Many th= anks to the original software writer, Jim Shortz for the programmer design = and code. The eprom manager software is written in PL/M (with some assembly program l= inkage) and requires a little work with Visual Studio to get the support pr= ograms(compiler, assembler linker and locator). One this step is done, maki= ng changes is straight forward. Here is the link for the PL/M compiler and = support programs. https://github.com/ogdenpm/c-ports I would like to get this to work on the STD85, but need to review the J2 pi= nout, as it is reversed from the SDK85/SBC85+. (an adapter pcb should fix t= he reversal) I finally got to write some PL/M code for an 8085, and it runs on the newly= built SBC85+ !!!! It=E2=80=99s been 40 years since I had a class in PL/1. Regards, George Virus-free. www.avast.com -- This email has been checked for viruses by Avast antivirus software. www.avast.com ------=_NextPart_000_0001_01DACD4C.B1DD4D50 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Craig,

 

What I = should have done on the programmer pcb, is jumpers to allow the = selection of the power and ground connections. But, connection to the 26 = pin ports requires an update to the eprom i/o due to the 8755 and 8155 = mapping of the ports. Probably not worth dealing with, for = now.

 

Can you make available the design files for the 26 pin = and 34 pin protoboards? I can=E2=80=99t seem to find them on tindie or = in your site=E2=80=99s documentation link. I am close to another pcb = order, and wanted to put these in on the order.

 

Thanks = Again,

 

Regards,

 

George

 

From: SBC-85 = <craig@sbc-85.com>
Sent: Wednesday, July 3, 2024 12:20 = PM
To: adamsgl@cinci.rr.com
Subject: Re: 8755 = programmer update

 

Very = nice project.

 

The I/o ports on my boards is a bit of an = embarrassment 

 

The first one was to make the layout easy because the = board was so tight. The power and gnd were at opposite ends of the = header.  Then I switched the pole and grounds to be the same on = diagonal so if plugged in backwards the 5/gnd were the same so it would = not immediately blow out whatever was plugged in.  Maybe I should = have matched the SDK-85 on that board.

 

I = never got into PL/M , probably too late to rewire my = brain. 

 

Looks like you nearly have this project wrapped = up!

 

Regards

Craig



On Jul 1, 2024, at 6:22=E2=80=AFPM, adamsgl@cinci.rr.com = wrote:

=EF=BB=BF

Craig,

 

I have the = 8755 programmer that was in the link I sent previously = operational.

 

Here are a few pictures:

 

Programmer = attached to the SBC85+. It only works on the 34 pin connectors, as I = didn=E2=80=99t catch the pins 1,2 power reversal on the 26 pin = connectors when I updated the board.

The hex spacers are to attach the display board, (next = picture)

Only 4 are used to hold the = display board, the rest are to support it when using the = keyboard.

<image004.png>

 

Here is = the SBC85+ with the display board attached. There are only 4 spacers = attaching the display to the cpu board.

 

<image005.png>

 

Here is = a screenshot of the software. I have modified the code to include = displaying the buffer contents.

 

<image006.png>

 

I have = a intel hex loader in the ZIF socket on the cpu board. I use this to = upload the eprom manger software to the 6264 ram chip and run the eprom = software from there. Testing is nearly completed, and it works great. = Many thanks to the original software writer, Jim Shortz for the = programmer design and code.

 

The eprom = manager software is written in PL/M (with some assembly program linkage) = and requires a little work with Visual Studio to get the support = programs(compiler, assembler linker and locator). One this step is done, = making changes is straight forward. Here is the link for the PL/M = compiler and support programs. https://github.com/ogdenpm/c-= ports

 

I would like to get this to work on the STD85, but = need to review the J2 pinout, as it is reversed from the SDK85/SBC85+. = (an adapter pcb should fix the reversal)

 

I finally = got to write some PL/M code for an 8085, and it runs on the newly built = SBC85+ !!!! It=E2=80=99s been 40 years since I had a class in = PL/1.

 

Regards,

 

George

 

 

 

 

 

V= irus-free.www.avast.com

 

------=_NextPart_000_0001_01DACD4C.B1DD4D50--