Category Archives: 6530

KIM-1, were IC sockets used?

Posted on by

Before I saw the last revision, Rev G, I had never seen an original KIM-1 with IC sockets. All ICs were soldered right into the PCB.

Now I have a KIM-1 Rev G and a photo by Dick Dral of his KIM-1 Rev G with white IC sockets.


So the last iteration of the KIM-1 did have IC sockets.

Not only did Rev G come with sockets, they used not only white sockets, black ones too (Thanks Santo Nucifora).

See also:

KIM-1 connectors: beware the Chinese cheap variants!

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Magazines: Compute! and Compute II

The pages om Magazines had an update. MICRO has its own page with all Best of MICRO pfds. Compute! and Compute II ar...

All documents in the MTU pages are now clean and higher quality, about 50 new PDFs.

I got hold a about 10 cm of MTU documents. Several I already had in PDF format, some not available yet. I took the oppo...

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...
post

Images of the 6530s I have

Over the years I have acquired quite some 6530 ICs. Either as IC or built into a KIM-1, Jolt or Chessmate.

On this page I show these 6530s.

Note the timestamps: 1976 to 1982. MOS Technology, Synertek, Rockwell.


First Edition

Rev A

Rev B

Rev D

Rev E

Rev F Rockwell

Rev F

Rev G

Rev G

Digitus

3x Jolt

011 2x

024 3x

Chessmate

See also:

6530 hardware emulator in FPGA in 40 pin DIP

Imagine a true 6530-002 and 6530-003 replacement , the RRIOTs of the KIM-1 Now with modern FPGAs you van do that...

KIM Clone Rev 5

After almost a year (2019)of on-again, off-again, development we finally have a new revision of the KIM Clone. It...

KIM Clone Rev 3

Changes between Revision 2 and Revision 3 Boards Revision 3 boards had a number of minor changes to fix know issues o...

Corsham github

Bob Applegate used github repositories to archive and supplement some of his projects. While this github archive is s...
post

6530 hardware emulator in FPGA in 40 pin DIP

Imagine a true 6530-002 and 6530-003 replacement , the RRIOTs of the KIM-1

Now with modern FPGAs you van do that: a 40 pin PDIP replacement: the reDIP RIOT is made for that purpose.

Here is the code for the reDIP to make it a 6530-002 or 6530-003:

Github with gateware for Commodore MOS 6530 RRIOT

Since the 6532 is in fact a subset of the 6530 (no ROM, more RAM), it seems not too difficult to make a 6532 replacement this way.

The reDIP RIOT is an open source FPGA board which combines the following in a DIP-40 size package:

Lattice iCE40UP5K FPGA
1Mbit FLASH
5V tolerant I/O
The reDIP RIOT provides an open source hardware platform for 6530 RRIOT / MOS 6532 RIOT replacements.

See here the github for this project

https://github.com/daglem/redip-riot

See also:

Images of the 6530s I have

Over the years I have acquired quite some 6530 ICs. Either as IC or built into a KIM-1, Jolt or Chessmate. On this pa...

My Synertek collection photos

Here images of Synertek related objects in my collection. ...

PAL-2

4 february 2025 2025 I have built the PAl-2 kit, now designing and building a I/O card. This information is based upon ...

KIM Clone Rev 5

After almost a year (2019)of on-again, off-again, development we finally have a new revision of the KIM Clone. It...

6530 hardware emulator in FPGA in 40 pin DIP

Posted on by

Imagine a true 6530-002 and 6530-003 replacement , the RRIOTs of the KIM-1

Now with modern FPGAs you van do that: a 40 pin PDIP replacement: the reDIP RIOT is made for that purpose.

Here is the code for the reDIP to make it a 6530-002 or 6530-003:

Github with gateware for Commodore MOS 6530 RRIOT

Since the 6532 is in fact a subset of the 6530 (no ROM, more RAM), it seems not too difficult to make a 6532 replacement this way.

The reDIP RIOT is an open source FPGA board which combines the following in a DIP-40 size package:

Lattice iCE40UP5K FPGA
1Mbit FLASH
5V tolerant I/O
The reDIP RIOT provides an open source hardware platform for 6530 RRIOT / MOS 6532 RIOT replacements.

See here the github for this project

https://github.com/daglem/redip-riot

See also:

KIM-1 connectors: beware the Chinese cheap variants!

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Magazines: Compute! and Compute II

The pages om Magazines had an update. MICRO has its own page with all Best of MICRO pfds. Compute! and Compute II ar...

All documents in the MTU pages are now clean and higher quality, about 50 new PDFs.

I got hold a about 10 cm of MTU documents. Several I already had in PDF format, some not available yet. I took the oppo...

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...
post

KIM Clone Rev 5

After almost a year (2019)of on-again, off-again, development we finally have a new revision of the KIM Clone.

It has everything the previous versions have, but with a few improvements people have asked for (or I wanted):

Expansion bus connectors! This was widely requested. Includes most processor signals, address and data buses, along with bank decoding lines. This is intended to plug into either a prototype board (more on this later) or a motherboard (in the works).
More jumpers to enable/disable blocks of RAM from being decoded. K1-K4 each have jumpers, and 8K blocks for the entire memory map have another set of jumpers. This allows blocks to be disabled on-board, then mapped to a user-supplied circuit.
Power on reset. Not a major feature, but I didn’t like having to press RS every time I turned on my KIM-1.
Power connector and the power switch moved to the top edge of the board.

KIM-1 Clone Rev 5 User manual
KIM-1 Clone Rev 5 User manual, other version

See also:

Images of the 6530s I have

Over the years I have acquired quite some 6530 ICs. Either as IC or built into a KIM-1, Jolt or Chessmate. On this pa...

KIM-1 PCB Edge connectors

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Dungeons And Dragons Dice Simulator For The KIM-1

In Compute! Issue 13, June 1981, a small program is published. It runs on an unexpanded KIM-1, showing a random number a...

MICRO

MICRO The 6502 Journal Published by Robert M. Tripp, The Computerist Published from 1977 tot 1983. The first y...

KIM Clone Rev 4

The first version that support expansion connectors.

KIM-1 Clone Rev 4 User manual

See also:

Images of the 6530s I have

Over the years I have acquired quite some 6530 ICs. Either as IC or built into a KIM-1, Jolt or Chessmate. On this pa...

KIM-1 PCB Edge connectors

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Dungeons And Dragons Dice Simulator For The KIM-1

In Compute! Issue 13, June 1981, a small program is published. It runs on an unexpanded KIM-1, showing a random number a...

MICRO

MICRO The 6502 Journal Published by Robert M. Tripp, The Computerist Published from 1977 tot 1983. The first y...
post

KIM Clone Rev 3

Changes between Revision 2 and Revision 3 Boards

Revision 3 boards had a number of minor changes to fix know issues on Revision 2 boards. No new features or capabilities were added.
– IC19 was removed
–IC18 changed from 74AVC1T45 to 74LVC1T45
– IC16 changed to 74LS00
– IC7 and IC8 changed to 74LS145
– R37 and R38 changed to 470 ohms
– C18 was added
– IC17 had power routing fixed

KIM-1 Clone Rev 3 User manual

See also:

Images of the 6530s I have

Over the years I have acquired quite some 6530 ICs. Either as IC or built into a KIM-1, Jolt or Chessmate. On this pa...

KIM-1 PCB Edge connectors

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Dungeons And Dragons Dice Simulator For The KIM-1

In Compute! Issue 13, June 1981, a small program is published. It runs on an unexpanded KIM-1, showing a random number a...

MICRO

MICRO The 6502 Journal Published by Robert M. Tripp, The Computerist Published from 1977 tot 1983. The first y...

KIM clone versions

In 2017 Bob Applegate started to design a KIM CLone.
He went to 5 versions.
The first were enhanced KIM-1 replica’s without expansion connectors but with lots of RAM and ROM. The later versions and 5 did have expansion connectors, and a Motherboard, I/O board and Protoboard were added.

See also:

Images of the 6530s I have

Over the years I have acquired quite some 6530 ICs. Either as IC or built into a KIM-1, Jolt or Chessmate. On this pa...

KIM-1 PCB Edge connectors

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Dungeons And Dragons Dice Simulator For The KIM-1

In Compute! Issue 13, June 1981, a small program is published. It runs on an unexpanded KIM-1, showing a random number a...

MICRO

MICRO The 6502 Journal Published by Robert M. Tripp, The Computerist Published from 1977 tot 1983. The first y...
post

Corsham github

Bob Applegate used github repositories to archive and supplement some of his projects.

While this github archive is still up (August 2024), it may go away too.

So here dumps of the repositories. Some of the contents may also show up in the Corsham projects archive pages.

6502 Tiny BASIC
# 6502 Tiny BASIC
This is Bob Applegate’s (bob@corshamtech.com) spin of a Tiny BASIC interpreter for the 6502. It uses an IL approach, like proposed by Dr Dobb’s Journal in the first few issues. This is not fancy, it’s not bug free, and it’s not amazing by any means, but it was fun to write and decent enough to do fun stuff and run demos.

CTMon65
CTMon65 – 6502 monitor

Eagle Libraries
These are libraries used in Corsham Technologies LLC prodcuts (www.corshamtech.com).
# SS-50.lbr
This is for constructing SS-50 and SS-30 compatible boards. It includes both male and female Molex connectors. For constructing plug-in boards using a female connector my suggestion is to place the center of the library part 0.15″ above the bottom of the board.
# S-100.lbr
This is for constructing S-100 boards and is, for now, more of an experimental library rather than something that has any sort of polish about it. Feel free to use but don’t be too disappointed when it does not meet your expectations.

Kicad SS50
# KiCad SS-50 Library from Corsham Technologies, LLC
This is a free to use library that was developed during our creation of
various SS-30/SS-50 boards.

KIM Monitor
# KIM-Monitor
KIM monitor as modified for the Corsham Tech KIM Clone board.

Music Board master
# SS-30 Music Board
This is a rough recreation of the Newtech Computer Systems model 68 music board. No atttempt
was made to make it look exactly like the original, but it is 100% compatible and uses the
same components as the original.

SD Drive
SD Drive Arduino firmware

SD Shield Tester
The SD Shield Tester is a program to test the Corsham Technologies SD Card System shield. This is primarily a manufacturing tool but can be used for general testing. It’s not very useful, but if you suspect an SD Card shield is malfunctioning, this is a way to test it.

xDbg
# xDbg
xDbg is a 65C02 debugger meant to compliment the Corsham Technologies xKIM monitor

xKiM
# xKIM
xKIM is an extended monitor for KIM computer systems. Commonly used in Corsham Technologies KIM-1 add-on boards.
It is a 6502 based monitor which has basic tools as well as some additional commands for working
with the Corsham Tech SD Card system.

xSBUG
xSBUG
This is the Corsham Technologies version of the SWTBUG SBUG monitor for the 6809. It is close to the original but has support for the Corsham Tech SD Card System (emulates disk drives).

xSWTBUG
xSWTBUG
This is a modified version of the SWTPC monitor SWTBUG for use on their 6800 based SS-50 systems. It has additions for the Corsham Tech SD card subsystem and other minor improvements.

See also:

Images of the 6530s I have

Over the years I have acquired quite some 6530 ICs. Either as IC or built into a KIM-1, Jolt or Chessmate. On this pa...

KIM-1 PCB Edge connectors

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Dungeons And Dragons Dice Simulator For The KIM-1

In Compute! Issue 13, June 1981, a small program is published. It runs on an unexpanded KIM-1, showing a random number a...

MICRO

MICRO The 6502 Journal Published by Robert M. Tripp, The Computerist Published from 1977 tot 1983. The first y...
post

Corsham projects

As you can read below in the screenshot of the last post on Corsham’s website below, Bob has left us. I will miss him, a dear friend with whom I exchanged many emails about the KIM-1.

To honor his legacy I have collected on these pages everything available, from his former website, Github repositories and information I have received from Bob, enhanced with photos of Corsham products I have bought over the years.

I have decided not to replicate his website. Instead the structure is about all of his projects, current and past, with on each page all information available to me about the product, enhanced with available material from outside.

Note that I do not have more information. I do not have the PCB designs. I do not sell any Corsham product. All I have is here is what Bob once published.

If you are interested in the SWTPC range, have a look here: original Corsham boards and more 6800/6809 products at Peripheraltech.

Links
The Corsham Technology website used to live at https://www.corshamtech.com
Bob’s private website is still up (August 2024) at https://k2ut.org/
The Github repositories are also still up at https://github.com/CorshamTech
The forum at groups.io is here: https://groups.io/g/CorshamTech/

Pages you find here:


The last message on the Corshamtech website with the sad news about Bob.

Bob Applegate at his desk

See also:

Images of the 6530s I have

Over the years I have acquired quite some 6530 ICs. Either as IC or built into a KIM-1, Jolt or Chessmate. On this pa...

KIM-1 PCB Edge connectors

The KIM-1 needs 2 edge connectors. The specifications are: card edge; PIN: 44; 3.96mm When you search for those, ...

Dungeons And Dragons Dice Simulator For The KIM-1

In Compute! Issue 13, June 1981, a small program is published. It runs on an unexpanded KIM-1, showing a random number a...

MICRO

MICRO The 6502 Journal Published by Robert M. Tripp, The Computerist Published from 1977 tot 1983. The first y...