Apple II

Crimper

Does anybody know what the best type of crimper to use for the Apple II power supply conector pins?

Like the ones shown here:

 

https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/1-640520-0/A14113-ND/187722

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Apple II Memory Select

Hi guys! A small quick project, I did as usual for myself, but I will be glad if it will be useful to someone else. 2 years ago when I was translating the manual for Apple II replica Mike Willegal I found a description of a very complicated way of making these jumpers, but the result is much better. My project is something between soldered wires and the method of the respected Mike Willegal. In the archive there are 2 versions of jumper blocks for 4 and 16kb.

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PrintTok/cc65 updated!

I just updated PrintTok online.  The main update is more two-byte tokens for two versions.  Both versions support 128 more two-byte tokens, but version 006 lost 26 two-byte tokens due to a conflict between two sets of tokens.  Version 006 is an update from 004 that now provides better support for memory expansion and, if you need between 65 and 192 tokens, it is now a little more efficient if you disable unneeded tokens, as the new tokens require less processing.  Version 007 is updated only by the extra tokens.

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Need help identifying Apple II pickup

Hello Everyone,

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IIgs not starting up, garbled graphics

Hey there, Apple chums! ;)

 

Frank from Germany here, nice to talk to you all again, asking for your advice.

 

So my IIgs won't start anymore. After switchng on I either get what looks like a big fat inverted L or some colourful patterns. Resetting the machine with CTRL-Reset I get, in turn, black screens, random characters, or blue, green, red, purple, or a mixture of all garbage graphics.

 

Does thing ring a bell to any of you IIgs buffs? CPU or ROM, perhaps? My machine is a ROM 01 BTW.

 

Thanks in advance for any input,

Frank

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ADTPro over serial won't communicate with host after ADTPro loaded

I've done my due dilligence as much as I can by scouring this forum and Google for answers, and found some suggestions, but none seemed to work. I'm trying to send and receive images to my IIe via a super serial card. I can bootstrap just fine over serial from my MBP and from my Win 10 machines, but when I try to receive a file from my host machines, I get the message waiting for reply from host. 

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Horizontal bars on Apple IIe

Hello, I have this Apple IIe that won't boot and all I'm getting is horizontal bars. I've done some troubleshooting and so far found that the clock is good and the CPU is getting a reset signal on pin 40. I scoped pins 19 and 20 on the MMU and found that only 19 (ROMEN2) is ouputting a pulse. Pin 20 (ROMEN1) is always in high (off) state. Does this mean that the problem is in the EF ROM? I haven't been able to find any information on whether both of these signals should be on at the same time or if ROMEN1 is off because it has to read the other ROM first.

 

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Apple II+ boot issue: nothing but the "@" symbol

Hello – Today, my Apple II+ is having a boot issue. I’m far from being a technical person and have no diagnostic tools. Any advice would be welcome.

 

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Revisting Alex Freed Z80 Card

Greetings,

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just another softSP card.....

After being disappointed with the performance of a similar card that that was being sold, combined with the fact that the licensing for that project had several restrictions, I decided to spend a couple hours with KiCad and draw it from scratch myself. The result is a reduced chip count, and IMO, a better layout in a similar size.

 

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