a2heaven IIGS8MRAM User manual

Apple IIGS 8MB RAM
User’s Guide
Copyright © a2heaven.com

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 3
Table of Contents
Description ...........................................................................................................................................................4
Contents of Package .............................................................................................................................................4
IIGSRAM8M Installation ......................................................................................................................................5
Diagnostics and Troubleshoting ...........................................................................................................................7
IIGSRAM8M Led indicators ...................................................................................................................................8
IIGS5 2KROM Add-on board ................................................................................................................................9
IIGS5 2KROM Jumpers and memory map ........................................................................................................ 0
Starting and using GSBUG .7 ...........................................................................................................................
About the IIGS8MRAM Battery ........................................................................................................................
Frequently Asked Questions .............................................................................................................................. 2
Where to find further help ................................................................................................................................ 2
About a2heaven.com ........................................................................................................................................ 2
Warranty ............................................................................................................................................................ 3
Some other a2heaven products ........................................................................................................................ 4

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 4
Description
About The IIGS8MRAM Card
Memory Expansion IIGS8MRAM cards allows you to increase the Random Access
Memory (RAM) capacity of your Apple IIG . RAM is the memory that can be
both read from and written to-the addressable (user useable) memory. Many
programs automatically look for and use available RAM to give them more room
to operate (desktop space). Many programs load themselves into the available
RAM at start up. This greatly increases their performance because it reduces or
eliminates the need to access the relatively slow mechanical floppy drives.
IIGS8MRAM lets you increase the available system RAM 8MB.
IIGS512KROM add-on board allow you to add ROM chip (as they become
available) which will give you greater speed in loading tools, applications, etc.
DMA Support
The Apple IIG is limited to expanded system memory of up to 8 Megabytes but
only 4 Meg is Direct Memory Access (DMA) compatible. Most DMA peripherals
will tell you that they require DMA.
IIGSRAM8M cards are DMA compatible.
Contents of Package
IIG RAM8M – Apple IIG 8M RAM PCB
IIG 512KROM – 512K add on board with preloaded software .

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 5
II SRAM8M Installation
This chapter tells you how to install and test the IIG RAM8M memory expansion
cards. Before you install your memory-expansion card, please be sure to read
etting Up Your Apple IIG and the Apple IIG Owner's Guide, You'll need to be
particularly familiar with the Control Panel functions as this manual makes
frequent reference to the Control Panel menu.
Installation
1. Turn off the computer.
Leave the computer plugged in but flip the power switch to the OFF
position.
2. Remove the Apple ILG cover.
Locate the two latches on either side of the backplate. Push in on the
latches while pulling up and back on the lid.
3. Touch the power supply case.
This will discharge any static electricity that may be on your body. Do not
skip this step. tatic electricity can ruin chips on the board and in the
computer.
4. Remove the memory-expansion card from its anti-static bag.
Hold the card by the edges. Do not touch the gold fingers of the card.
5. Position the memory expansion card over the Memory Expansion lot
The Memory expansion slot is located in the front right corner of the
computer , see figure .

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6. Insert the card.
Insert the gold edge-connector into the Memory Expansion lot until it is
completely seated. You can wiggle the card gently, back to front, to
insure a firm connection.
7. Replace the Apple IIG cover.
lide the front of the lid in first, then press on the back edge until it snaps
into place.
8. Check the RAM Disk setting to verify correct installation.
You can verify that the computer recognizes the additional memory by
checking the RAM Disk option in the Control Panel menu.
First, turn on the computer then access the Classic Desk Accessories
menu by holding down the Open-Apple and Control keys while pressing
E C. Use the up and down arrow keys to select the Control Panel menu
and press "Return". elect the RAM Disk option and press "Return". The
number next to the Largest electable listing tells you the amount of
memory that the system now has available.
9. Test the card.
ROM add-on card contain tools for testing RAM card. You can Boot from
ROM disk and use this tools. First, turn on the computer then access the
Classic Desk Accessories menu by holding down the Open-Apple and
Control keys while pressing E C.
Use the up and down arrow keys to select the Control Panel menu and
press "Return". elect the Slots option and press "Return". Use the up
and down arrow keys to select StartUP using left and right arrow select
ROM Disk and press "Return”. elect Quit and reboot computer . After
rebooting computer load ProDos 2.4.1. From menu select memory test
folder and run program to test memory.
10. If memory test is complete without error installation is complete, else
check Diagnostics and Troubleshooting chapter.

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Diagnostics and Troubleshoting
If you have a technical question relating to your IIGSRAM8M or any other
a2heaven product that is not covered in the manual, please contact with us on
this mail address [email protected]. The support are experienced in the
applications and uses of a2heaven products, but in order to provide a quick and
effective answer to your question, they will need to know as much as possible
about the hardware and software specifically related to your question. Please
provide the technical support representative with the following information:
•The a2heaven product related to your question and its revision number.
•The original and current memory configuration of the card (if applicable).
•The model and revision of your computer.
•What peripherals are being used and what cards are in each slot.
•The results of any test programs, diagnostics, or troubleshooting done by
you.

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 8
II SRAM8M Led indicators
Led state :
Indicate Accessing ROM Card
Indicating Write on RAM Card

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 9
II S512KROM Add-on board
The IIGS5 2KROM add-on board do not need to be filled for the card to work
as memory expansion. However, when EPROMs containing applications, tools,
and utilities become available, you'll be ready to take full advantage of the
increased speed they offer.
IIGS512KROM come with preloaded some useful application:
•ProDos 2.4.1 – DO
•CopyIIPlus 7.2 - Copy utility
•ADTPro – Communication software
•Merlin – Assembler
•MemTest – Memory test programs
•VideoTest – Test Video modes on IIG
•G BUG 1.7 – Debugger software
You can Boot from ROM disk and use this tools. First, turn on the computer then
access the Classic Desk Accessories menu by holding down the Open-Apple and
Control keys while pressing E C.
Use the up and down arrow keys to select the Control Panel menu and press
"Return". elect the Slots option and press "Return". Use the up and down
arrow keys to select StartUP using left and right arrow select ROM Disk and
press "Return”. elect Quit and reboot computer . After rebooting computer
load ProDos 2.4.1 and you can use programs.

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 10
II S512KROM Jumpers and memory map
IIG 512KROM add-on board contains two configuration jumpers.
For internal use ( not remove or move )
elect ROM pace Mapping
When Green jumper is ON ROM Mapping is linear.
G MEMORY ROM MEMORY Description
0xF00000
-
0xF007ff
0x0000
-
0x
0
07ff
mart Port Driver
0xF00800
-
0xf7ffff
0x0800
-
0x7ffff
Disk Image
When Green jumper is OFF (removed) ROM Mapping is split to 2 parts
G MEMORY ROM MEMORY Description
0xF00000
-
0xF007ff
0x
0
0000
-
0x
0
07ff
mart Port Driver
0xF00800
-
0xf
3
ffff
0x00800
-
0x3ffff
Disk Image
0xF
8
0000
-
0xF
Bffff
0x
4
000
0
-
0x
7ffff
ROM Tools firmware

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Starting and using SBU 1.7
To use build in software debugger you need to remove GREEN jumper from
IIG 512KROM add-on board (this enable support of ROM TOOL Application in
card) and restart your computer. After restart G BUG is loaded on memory as
ROMTOOL application and stay on memory.
To activate G BUG needed to press Control-Command-Option-Esc.
For more about G BUG and using it check Google for GSBug .7d9 .
About the II S8MRAM Battery
What it is
The IIG RAM8M battery is a 3 volt, 20 millimeter lithium battery type R2032
with a life of about 1-2 years. You can order these batteries directly from your
local computer parts store or camera supplies store.
Replacing
To replace the battery, remove the memory expansion board. Remove the
battery by pushing on the top edge of the battery with a flat blade screwdriver.
Do not bend the clip up. The battery should pop out the bottom of the
connector. Insert the new battery, positive (+) side up.
Lithium Battery is using to keep RAM data after PCB lose power .To using
battery backup RAM you needed to use custom software driver to use RAM as
solid state RAM disk because build in mart Port RAM disk driver on G
Firmware clear RAM content after power on an you cannot use it .
Driver is in development stage and will be ready soon.

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 12
Frequently Asked Questions
Q. Who makes the IIG 8MRAM?
A. The adapter was designed and built by Plamen Vaysilov from a2heaven.com.
This includes the software (VHDL design)/firmware, circuit design and the PCB.
Q. Can I use IIG 8MRAM on other computers?
A. Almost certainly no. You can use IIG 8MRAM only on Apple IIG
(ROM1/ROM3).
Q. How much does the IIG 8MRAM adapter cost?
A. At the time of writing this document (Late Nov 2016), the price was
U $89.99 which includes IIG 512KROM add-on board and shipping to
anywhere on the planet.
Q. I Want to Add more that 8MB RAM is this is possible?
A. No , this card not designed to support more RAM.
Where to find further help
Phone: [phone]
Email: [email protected]
Facebook: https://www.facebook.com/a2heaven/
About a2heaven.com
A2Heaven is a small company that implements new technology for use on
vintage computer hardware.

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 13
About this User uide
This User Guide was written by Plamen Vaysilov, Version 1.00, 22
th
Nov 2016,
1
st
public release.
Warranty
A2Heaven.com warranties the IIG 8MRAM adapter for 6 months or 180 days,
from the date of purchase. This warranty assumes the RamFactor8M adapter
has not been tampered with in any way.

Apple IIGS 8M RAM User’s Guide © a2heaven.com, 22 Nov 20 6 Version .00 P a g e | 14
Some other a2heaven products
Apple SAM (Semi Automatic Mouth): A high quality speech synthesizer.
Mockingboard-T: A sound card for all Apple II computers, no speech chip.
ALF M 1 lone: A music synthesizer that allows you to program music into
your apple using standard musical notation.
Ramworks III lone: Comes with 64k, expandable to 1M or 3M with 2M
expander board. For apple IIe only.
Ramworks III VGA adapter: Option board for the Ramworks III Clone.
Generates VGA compatible video, only for NT C, 60Hz Apple IIe.
d lock: Clock option for Ram Express or Apple IIc Memory Expansion card.
Senior PROM IIe: Add debugging commands to your Apple IIe, such as entry
to ystem monitor at any time, copy memory to and from auxiliary memory,
plus much more.
Trak Star II: Gives constant digital read of any 5.25” Apple II drive, great for
seeing what that pesky protection scheme is up to. upports full, half and
quarter track movement.
SDFloppy II: tore up to 36 “D K” images on an D card, replaces 5.15”
floppy drive.
RamWorks8M : RAM memory Add 8MB RAM to Apple IIe .
RamFactor8M : RAM memory Add 8MB RAM to Apple II+ .
For more products check www.a2heaven.com