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4-way kickstart switcher

Posted on by Peter

Positive growth.

Nature, in the common sense, refers to essences unchanged by man; space, the air, the river, the leaf. Art is applied to the mixture of his will with the same things, as in a house, a canal, a statue, a picture.

But his operations taken together are so insignificant, a little chipping, baking, patching, and washing, that in an impression so grand as that of the world on the human mind, they do not vary the result.

The sun setting through a dense forest.
Wind turbines standing on a grassy plain, against a blue sky.
The sun shining over a ridge leading down into the shore. In the distance, a car drives down a road.

Undoubtedly we have no questions to ask which are unanswerable. We must trust the perfection of the creation so far, as to believe that whatever curiosity the order of things has awakened in our minds, the order of things can satisfy. Every man’s condition is a solution in hieroglyphic to those inquiries he would put.

ATTENTION: All pictures refer to an Amiga 500 Rev.6A. If you own a different board revision or a different Amiga, then the positions on the photos will differ! In case of doubt or basic questions, please send a short email to info@retrobuddys.com with the exact model / revision BEFORE installation. Please always carry out installations/removals on an ESD mat with potential equalization. Never stand on a (polyester) carpet during installation. If no professional chip puller tool is available (see photo) Please lever out the chips *carefully* with a small electric screwdriver from both sides at the same time. Never lever out one side first and then the other! This can (will…) damage the chips of your Amiga. In case of crooked legs, straighten the chip *carefully* on an ESD mat with little pressure. If a leg is crooked/clenched *very carefully* press the leg straight with very small pliers/tweezers. If you have no installation/conversion experience at all, we will be happy to install the parts you have purchased from us at a flat rate of €30 plus 2*postage and provide a functional warranty. We assume that you know how to open your Amiga! If you have any difficulties with this, please send an e-mail to info@retrobuddys.com As soon as you have opened your Amiga, please remove the existing Kickstart Rom from the socket and align it (small notch, round dot, semicircle on the chip side). Normally the notch on an Amiga 500 Rev 6a points to the rear of the connection ports. Now you can insert the 4-way Kickstart Switcher into the socket. The alignment of the notch should correspond to the alignment on the mainboard. The cables are usually aligned towards the rear of the connection ports. You can now either route the two switches through the flaps of the side expansion port or carefully drill 2 holes in the housing of your Amiga. Please note that there are different versions of the switcher for the different Amiga 500 motherboard revisions (Rev.5, Rev.6a). For earlier versions than 5a there is *no* working switcher and with the Rev 8/Amiga 500+ you have to solder on the mainboard, as important resistors were not fitted from the factory. If you need further hardware mods, a Gotek drive, a complete Amiga, a PiStorm or just cables, please contact us. With your next order in our webshop www.retrobuddys.com you will receive free delivery with your personal voucher code 8ybykhw9. If you are missing something in the webshop, please ask by e-mail (info@retrobuddys.com). We have *almost* everything for your Amiga 500, 600, 1000, 1200 and 2000.
Instructions

4MB Amiga 600 FastRam extension

Posted on by Peter
19
Nov

4MB Amiga 600 FastRam extension

In case of doubt or basic questions, please send a short e-mail to info@retrobuddys.com BEFORE installation.

Download Amiga TestKit by Keir Fraser => https://github.com/keirf/amiga-stuff/releases/download/testkit-v1.20/AmigaTestKit-1.20.zip

Please always carry out installations/removals on an ESD mat with potential equalization. Never stand on a (polyester) carpet during installation.

You are now ready to install the expansion into your A600, but before you do, we recommend cleaning the CPU pins with contact cleaner or isopropyl alcohol and a toothbrush or cotton swab, as they have probably accumulated all sorts of gunk/lint/etc. over the years.

Allow the CPU to dry well and then place the extension on the CPU in the correct orientation and press it down firmly until it feels firm. No effort should be required.

The socket on the memory expansion is modified and the chip is actually inserted there and not plugged in from above. Therefore, please do not constantly insert and remove it, otherwise the socket will wear out very quickly. If possible, do not shake, turn or place the computer horizontally after installation.

Before you reassemble the case, we recommend running Amiga TestKit. Use the memory option (F1), 4 MB Fast RAM must be displayed. Then start the memory test (F1 again) and let it run for 20-50 cycles: If the TestKit does not find any errors, the memory expansion is seated correctly. If errors occur, switch off the computer and try to fit the extension better by pushing it further down or turning it slightly back and forth.

It can happen that the card slowly moves out of the base over time. To avoid this, you can anchor it to the motherboard using the hole to the left of the CPU, which should match one of the holes for the feet of the hard disk bracket.

Note that, as already mentioned, the PLCC socket is not intended for this type of use, which means that the contact quality deteriorates a little each time the board is inserted or removed. So try not to remove them unnecessarily. If you notice that the contact has deteriorated so much that the machine is no longer stable, the base must be replaced.

Each memory expansion has been extensively tested by us and has been written, read and verified for at least 50 cycles with the “Amiga Testkit” without errors.

If you have received the 3D frame from us for mounting the memory expansion, you must first remove the mainboard from the housing. Then turn to the back and look for the 2 rectangular holes.

Please insert T-shaped pins into these holes. If they are too wide, please sand them down carefully with some sandpaper. For safety, we have included 2 sets consisting of pins and spacers.

If you have not received a mounting frame, then you have a memory expansion with a very strong socket from AMP which does not detach from the CPU even when you lift your Amiga by the memory expansion and you therefore do not need a frame.

Please turn the mainboard over.

Now you have to attach the round spacers with the rectangular side.

Finally, please attach and press on the memory extension and tighten it carefully with the screws supplied. Please remember that the frame is made of PLA plastic and breaks off easily.

After solid always comes from 😊

Before you reassemble your Amiga 600, please test it once with the Amiga test kit.

News

New Amiga products

Posted on by Peter

In the next few weeks you will find a few new products in our store. On the one hand, these are additions from the existing portfolio, on the other hand, they are completely new projects.

You can look forward to the following products:

  • 4/8 MB FastRam for Amiga 500 (aka GottaGoFast)
  • Simple IDE for Amiga 500
  • PiStorm for Amiga 500/2000
  • Awesome 68k CPU Re-Locator
  • Amiga 500 Rev.3+5 Kickstart EEProm Adapter

In addition, we will offer all projects as “PCB Only” and “Kit”. We’ve had a few requests from the community for complete craft kits, especially in the last few weeks.

News

Workbench 3.2.2 Clean Install

Posted on by Peter
06
Mar

A few days ago Hyperion released the now 2nd update of Amiga OS 3.2 (here). Time to describe once how to make a fresh installation on a CF card with WinUAE.

I won’t go into the hardware because there’s really nothing to do. However, you need a Compact Flash card with a capacity of 4 GB, a CF-IDE adapter (see store) and of course a Compact Flash reader for your computer. This guide also assumes that you are using Windows, although it should be possible to perform pretty much the same procedure with FS-UAE on Linux or Mac.

Step 1 – Download tools
First of all, you need to download a set of software.

WinUAE – Amiga emulator
This tutorial uses the WinUAE Amiga emulator which can be found at https://www.winuae.net. We have used the version 4.10.1.

Kickstart/Workbench
You need a copy of the Kickstart ROM and the Amiga OS 3.2 CD (available here in the Store). To do so, please download Update 1 (Amiga OS 3.2.1) and Update 2 (Amiga OS 3.2.2) from Hyperion. As a Retrobuddy customer you have received a direct link from us. Please unzip the update 2 to use the latest Kickstart ROM Kickstart 3.2.2 47.111.

PFS3 file system support
We recommend using the PFS3 file system and you need to download the handler for it from http://aminet.net/package/disk/misc/pfs3aio. This is not strictly necessary, but it is faster than the standard AFFS and supports larger partitions.

Win32 Disk Imager
You should use Win32DiskImager to make regular copies of CF card images or download different ones from our website as a Retrobuddys.com customer. You can find the disk imager here: https://win32diskimager.org/ 

Step 2 – Prepare CF card
To use the Compact Flash card in an Amiga, you must remove all previous file system information from it. To do this, start diskpart as admin in the command prompt.

First list your hard disks by typing “list disk”. This should give you a result something like this:

Next select your compact flash card, in my case it is disk 2: “select disk 2”.

Be very, very sure that you choose the right plate. You will destroy everything on it otherwise.

If you want to be absolutely sure that you have selected the correct disk, you can run the Detail Disk function to check. When you are 100% sure, run “Clean”. This deletes the file system information from the disk and makes it ready for use in the Amiga. Exit diskpart.

 

 

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Adding the Compact Flash card
The next step is to add the compact flash card. For this reason, you must run WinUAE as administrator, otherwise it will not work.

Click on the “Add Hard Drive” button.
Select the Compact Flash card as the hard disk (it may be called something completely different on your computer)
Switch from UEA to IDE (Auto)
Make sure that Read/Write is enabled.
Click on the “Add hard drive” button.

Step 3 – Configure the virtual Amiga in WinUAE
Start WinUAE as administrator. This is very important (right click on the icon “Run as administrator”) => Now we need to configure the system. Please try to rebuild your “real” Amiga 1:1.

Start the virtual machine!

Step 4 – Partitioning the Compact Flash card
Now we need to partition and format the Compact Flash card for use in an Amiga.

This is how it should look when you start your virtual Amiga
Open the installation disk and the HDTools drawer.
Start HDToolbox, you should see Interface SCSI, Address 0, LUN 0, Status Unknown
This is how HDToolbox should look like when you start it with CF card installed
Click on “Change drive type” -> “Define new” -> “Read configuration” -> “Continue” to configure the CF drive (ignore the read values, the Amiga does not really understand 4 GB drive)
Click OK and go back to the list of disks in the system.
Click on “Partition Drive”.
Set up a small(er) system partition, about 250 MB. Change the name to DH0.
Set up the rest of the CF card as a partition and name it DH1.
Example of CF card partitioning
Optional: Use the file system pfs3
Activate the advanced options and then click “Add/Update”.
Click Add New File System
Enter the filename f:pfs3aio (NOT pfs3_aio-handler as claimed in the video, this is no longer correct) and click OK
Change DosType to 0x50465303 and do not forget to press Enter in the field
Click OK and OK to return to your partitions
Select DH0 and click “Change” to switch to the new file system
Select “Custom File System” or “PFS/03” (depending on your Workbench version, I think)
Make sure that identifier is 0x50465303 (otherwise change it)
Change MaxTransfer to 0x1fe00 (and press Enter)

News

Welcome Retro Buddys!

Posted on by Peter

Welcome to Retro Buddys!

After some development time we finally went live today. The team behind the buddies has already considered the last year whether and to what extent it would be useful. can turn an “old” hobby into a business. Our aim is to be a contact point for the retro computing community around the “old” Commodore computers and to support the HW Mod community with words and deeds.

Many people are like me, they made their first steps 30+ years ago with the first Commodore computers – no matter if VIC-20, C64 or Amiga. I myself can still. remember very well how I worked with. my soldering iron have destroyed one or the other computer. However, I also learned an enormous amount while “scrapping”. Parallel to the HW mods I also learned to program the computers – especially C64 and Amiga 500. The 64 of course only in assembler and the Amiga to. Start with C and later 100% assembler.

Also, I am self taught to the demo and cracking scene and I still find it amazing today how many of “my” demo’s and hack’s still exist.

If you have any questions, need help or support, just ping us at info at Retrobuddys dot com. We are happy to help!