Previous Thread
Next Thread
Print Thread
Page 2 of 7 1 2 3 4 5 6 7
#110737 - 09/05/17 05:17 PM Re: Kaypro 10 [Re: Sharkpuncher]  
Joined: Aug 2011
Posts: 42
Sharkpuncher Offline
Member
Sharkpuncher  Offline
Member

Joined: Aug 2011
Posts: 42
Originally Posted by Sharkpuncher
Sorry for the delay, I had a busy weekend. Here are the images I took, I can see a few differences between yours and mine.
....



I totally forgot, there was a daughterboard of some kind piggybacked on the main board @U43 but I forgot to take a picture of it, I'll do that later.

Last edited by Sharkpuncher; 09/05/17 06:46 PM.
#110739 - 09/05/17 06:58 PM Re: Kaypro 10 [Re: rfka01]  
Joined: Jan 2012
Posts: 774
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 774
Bavaria
Hi Sharkpuncher, thanks for the pictures ... if you can, read the ICs at U9 and U34 ... and also the keyboard MCU.

As for the hard disk controller ... what is known about the chipset?

The only thing that seems somewhat close is the wdxt_gen.cpp ISA harddisk controller ...


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#111050 - 10/13/17 11:28 PM Re: Kaypro 10 [Re: rfka01]  
Joined: Jan 2012
Posts: 774
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 774
Bavaria
I've issued a pull request for the Omni 4 logic analyzer. We already had the ROMs for the Omni 2, this 4 is based on the Kaypro 4/84 instead of the II.

[Linked Image]

The story of archiving the Omni 4's disk and ROMs (and the files) can be found here:

https://hackaday.io/project/20151-floppy-fun-backing-up-a-unique-kay-pro-disk

The emulated Omni 4 boots the disk image, but the logic analyzer software obviously complains about the missing i/o board.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#111051 - 10/14/17 04:19 PM Re: Kaypro 10 [Re: rfka01]  
Joined: Jan 2012
Posts: 774
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 774
Bavaria
Here's the promised dump of my Kaypro 10's keyboard controller. It's a Mitsubishi 8049 that I've dumped using the i8749 settings. It's on the FTP as well, as usual.

Kaypro 10 keyboard MCU dump

Last edited by rfka01; 10/14/17 04:19 PM.

NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#111053 - 10/15/17 10:06 AM Re: Kaypro 10 [Re: rfka01]  
Joined: Feb 2004
Posts: 1,864
Vas Crabb Online content
Very Senior Member
Vas Crabb  Online Content
Very Senior Member

Joined: Feb 2004
Posts: 1,864
Sydney, Australia
Cool, a small one. I like emulating keyboards, so I'll take a look at it some time. No guarantee we can support it yet, because we don't emulate MCS-51 onboard serial and it could very well use that. Is it just the MCU in the keyboard, or does it have a mapping PROM as well? What's the chip's clock source? IIRC the Kaypro uses a 300 Baud ASCII keyboard.

#111054 - 10/15/17 10:33 AM Re: Kaypro 10 [Re: rfka01]  
Joined: Jan 2012
Posts: 774
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 774
Bavaria
Vas, there's a picture of the 8049 in the keyboard on page 1 of this thread - next to it sits a 6 MHz crystal. Also on page 1 is a photo of sharkpuncher's mainboard which shows this side of things.

Here's the technical manual

https://www.mirrorservice.org/sites...o/1484-D_KayproTechnicalManual_Dec84.pdf

Keyboard ports are on page 142


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#111057 - 10/15/17 04:29 PM Re: Kaypro 10 [Re: rfka01]  
Joined: Jan 2012
Posts: 774
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 774
Bavaria
Here's a piece about the Kaypro keyboard ... 300 Baud seems to be correct.

http://www.classic-computers.org.nz/blog/2010-02-18-kaypro-m100-keyboard.htm

Last edited by rfka01; 10/15/17 04:30 PM.

NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#111058 - 10/15/17 06:09 PM Re: Kaypro 10 [Re: rfka01]  
Joined: Mar 2006
Posts: 1,001
Lord Nightmare Offline
Very Senior Member
Lord Nightmare  Offline
Very Senior Member

Joined: Mar 2006
Posts: 1,001
PA, USA
MCS-48 doesn't have builtin serial, does it? (except via bitbanging in software, which is why the notetaker used an hd6402 uart outside the 8748 chip...)

LN


"When life gives you zombies... *CHA-CHIK!* ...you make zombie-ade!"
#111068 - 10/16/17 05:23 AM Re: Kaypro 10 [Re: rfka01]  
Joined: Feb 2004
Posts: 1,864
Vas Crabb Online content
Very Senior Member
Vas Crabb  Online Content
Very Senior Member

Joined: Feb 2004
Posts: 1,864
Sydney, Australia
Yeah, intel MCS48 doesn't have onboard serial. That's good news. Also, fairly small program, so should be tight code and easy to work out. BTW what's the small chip? I can't read its label. The big chip is a demux presumably used for scanning rows as in the Zorba keyboard.

#111071 - 10/16/17 06:20 AM Re: Kaypro 10 [Re: rfka01]  
Joined: Jan 2012
Posts: 774
rfka01 Offline
Senior Member
rfka01  Offline
Senior Member

Joined: Jan 2012
Posts: 774
Bavaria
Right, the chips are: SN74154N, the crystal, the 8049, a SN75451BP, a beeper and a DM7406N


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Page 2 of 7 1 2 3 4 5 6 7

Who's Online Now
2 registered members (Pernod, 1 invisible), 15 guests, and 3 spiders.
Key: Admin, Global Mod, Mod
Shout Box
Forum Statistics
Forums9
Topics8,435
Posts109,387
Members4,764
Most Online225
May 26th, 2014
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.027s Queries: 14 (0.007s) Memory: 5.0241 MB (Peak: 5.2506 MB) Zlib enabled. Server Time: 2017-11-18 12:17:28 UTC