Prototype Hardware for older v1.x cards

My first prototype used no discrete 74HCTxxx series parts, all logic was in the CPLD. Due to several unrelated problems with construction and the consumption of all PLD resources, I decided to build a second prototype with using some HCT parts, this time paying more attention to power distribution. I still believe it would be easy to eliminate the discrete 74HCT series parts if you used a larger PLD, like the EPM70128S. Although it might not be very cost effective.

Here is the schematic I developed AFTER completing my prototype. That means this schematic has not been tested. If you decide to build this project from scratch, you should use the schematic from the production board. If you just want a quick look at the schematic click here to view a 640kB jpeg image of the schematic.

1 - SanDisk CompactFlash 64Meg or 32Meg
1 - CompactFlash to IDE conversion board - Adtron SDDA-03 available from EMJ Embedded
1 - ISA bus prototype board (trimmed to fit into the apple bus) Jameco part #21531
1 - 44pin PLCC socket. Jameco part #71618
1 - 44pin PLCC wire-wrap socket. (http://smt-adapter.com/ - part #44PG-W or similar)
1 - Altera EPM7064SLC44-10F
1 - 27128 EPROM
2 - 74HCT373 transparent latch
2 - 74HCT245 bus transceiver
7 - 22ohm 1/8w resistors
5 - 0.1uf capacitors non-polarized (used for power supply bypass)
3 - 1.0uf capacitors non-polarized (used for power supply bypass)
10 - 30 pin wire wrap SIPP sockets. Jameco part #104053 (there were some leftover)
misc wire wrap tools and wire

My prototype was built on a board made from a PC's ISA bus prototyping card that was modified to fit into the Apple II's bus. These prototyping cards are relatively easy to find. I purchased mine through Jameco Electronics. I did the modifications using a utility knife and a straight edge. To know where to cut I used another Apple Peripheral card as a guide. Just score each side of the board deeply and snap along the score line.

More

Check Here :
http://dreher.net/?s=projects/CFforAppleII&c=projects/CFforAppleII/prototype.php

Project Logic for older v1.x cards

This project uses a Complex Programmable Logic Device (CPLD) made by Altera Corp. Although the device is in-circuit programmable, I simply programmed the part in my Dataman-48 Universal Programmer with a 44pin Universal Adapter - model #SPD-UNIV-44. Part #9959440000REV.:A1. Once programmed I inserted the part in the socket on my prototype. The output file I load into the programmer is called: appleideinterface.pof.

The PLD software I used for this project is MAX+plus II 10.1 BASELINE from Altera. After you download and install it, you can use it to modify the PLD logic. You will have to fill out a form to get a password from Altera to install the software. NOTE: The Altera Baseline software is already getting old, they recommend you use their more current Quartus II Web Edition software. I have not yet tried that version.

There are really only two source files that are critical to build this design. (however, there are a few other important files, such as a file that contains the pin numbers that I used on the CPLD)

The main PLD design file: appleideinterface.gdf. This is a Altera graphical design file and will require Altera's software to edit.
An additional design file: applelogic.tdf A sub block used inside the .gdf file above with all of the basic boolean equations. This is a text file and can be view with any text editor. The other files in the logic zip file are related Altera support files, and store configuration information.