Apple II

IWM reverse engineering

After probing the waters in this thread:

 

https://www.applefritter.com/content/how-important-are-iwm-features-apple-iic

 

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Host my text adventure?

Hi!  I'm looking for someone here to host my Smir 3, 1 text adventure for me or at least provide a link.  It is at c65 additions - Manage /game at SourceForge.net and is called smir3_1apple.zip.  Anybody?

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How important are the IWM features for the Apple IIc ?

Hi Fans -

 

as you might know, I'm working on my Replica 2e project which aims to produce a substitute for all Apple II from the early ones to the Apple IIe and the Apple IIc without using any of Apple's proprietary custom ICs, like the MMU, IOU and  the IWM. The link to the project thread is here:

 

https://www.applefritter.com/content/uncle-bernies-replica-2e-ww-prototype-apple-iie-replica

 

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A2 PSU blew a fuse with huge POP need some help on wiring

I got an A2 Astec AA11404 PSU. Not the later  -B version

It was dead, so I did a total recap. In and several that I have done in the past that was all that was needed. But those were all -B units.

When I pluged this one in to test votages, the fuse made a relitivly large exposion !! it made 3/4" burn mark on the mettal case with a rectifier in the way!

Well, obviously somethig is wrong. 

I looked more closely at the mains IN wiring. Looks like some one bypasted the 240/115 voltage selctor switch. 

So I'm a little lost on how this should be wired correctly.

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What To Do with Unwanted Apple II Series Computers?

I’m sure a number of you have similar concerns, so here goes.

 

I have a number of Apple II (Rev 2 and 3), and II+ (Rev 4, 7, and RFI) computers, some even with original boxes.  All work and have drives and multiple add-on cards.  I’m planning for the future where these will have to go.

 

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Franklin ACE 100 keyboard

So after some minor cleaning and reseating chips, My Franklin ACE 100 (not 1000), is ALIVE!  Floppies were way out of speed, but that did not take long either.  Of course the foam and foil keyboard is totally dead and I will order a set of pads from TexElec to revive the keyboard.  There is an extra board extending down from the keyboard on the power supply sided (possibly an encoder board), otherwise the keyboard looks much like the ACE 1000 with the standard DIP-16 keyboard cable like on a ][+.  The ACE 100 from March of 1982 was mostly a mass produced prototype (2000 produced) and most o

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Building the MMU on MAX7000 devices

In this thread: https://www.applefritter.com/comment/107057#comment-107057, retro_devices asks for help to program the MMU on some old Altera EPM7064LC44-10 and EPM7064LC68-10.I am starting this thread for that discussion.

 

The two devices are 64 macrocells, which is enough for the 58 macrocells the MMU currently requires.

 

I'm not too sure that this will be possible on MAX 7000 devices, though.

 

This is what I did / you can do:

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A small 2c project I'm working on...

I didn't have a working mouse for my //c. That ended earlier this week.

A tweak of an earlier design I used for Atari ST using a WinChipHead (Nanjing Qinheng Microelectronics) CH series microcontroller. The perf board prototype works great and PCB's are on the way. Most any USB HID or wireless HID (with a USB receiver) mouse can act as a //c mouse, or as an input device for a ][ or //e buss mouse card.

 

If there is any interest let me know. I'm still undecided on how to make this available.

 

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Change ProDOS file type to SYS

So I've written a small 65C02 assembler program that I want to change from BIN to SYS.  It is assembled (with my cross assembler) at $2000, and I can run it from the BASIC.SYSTEM command line or BITSY BYE.

 

Anyway, what is the easiest way to change a file type in ProDOS?

 

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