DIY-A586 v1.6 by piotr_go

Nice job!!

Where is the code?

Regards.

Soon.
I need to update main menu first.

Thanks so much Piotr, keep up the good work!!

Come on. Another beautiful emulator came out of your hand.
Which floppy disk drive did you use for loading, Amiga?
What else can this connector be connected to?

LA72 wrote:

Which floppy disk drive did you use for loading, Amiga?

At the moment it is programmed for Amiga, but the PC should also work after reprogramming.

LA72 wrote:

What else can this connector be connected to?

LEDs, buttons, ...



================ update ===============

I added a BIN file from the main menu.
Flash at 0x000000.

Hello.
Shouldn't the length of SDRAM paths be kept?
For SD cards and Flash memory the rule has been respected.

Krzysiek007 wrote:

For SD cards and Flash memory the rule has been respected.

Because it looks cool
At these frequencies, such length differences are irrelevant.

You've turned out to be quite a treat, congratulations.
What is the approximate cost of implementation because maybe I would do for myself?
Out of curiosity, hand or machine soldered?
You could throw in the parts list even from the program because probably not everything is on the diagram.

A masterpiece, as usual WOOOOOOW !.

pawelcb33 wrote:

What is the indicative cost of execution

I have no idea, I do not buy individual items.
There are many boxes lying around and I take out what I need.

pawelcb33 wrote:

Hand soldered out of curiosity

Manually.


=============== update ===============

I tried the second core C64 approach yesterday.
So far I haven't been able to match it with the SDRAM controller.
Certainly it is possible, but without knowing the timings, it's hard to do it.
It will take some time to analyze this.
Core running on the internal GRAM works, but it's only 40kB.

Design, as always noble ;)

But I will ask, where did you get a working floppy disk from in 2019?

It took care of it
You can still buy clean, probably still being produced.

And you don't need 8 "floppy disks

If you have it, you can give it to me because I've never seen it ... and 5.25 with a working station would come in handy.
I will also gladly take the Amiga 500 (but not qwertz) if someone has it, because I don't have a keyboard for testing.

Maybe I still have 5.25 "ignition switches, as I did not open it. Because they have cool stepper motors (such for PC as you are interested in) 8" floppy disks (as someone still remembers the name) but no ignition (they were used in Polish PSPD devices (https : //www.youtube.com/watch? v = Svxmq08Ow_I) produced by MERA-KFAP in Krakow They were produced in two pockets so that it was 2x 256kB . After the introduction of CPM v1.0, the computer had up to 64kB in dynamic memories.

Added after 4 [minutes]:

I found it on OLX https://www.olx.pl/oferta/matsushita-zbytkowa...etek-5-1-4-cala-CID99-IDybDiM.html#6f9e9b5470
But the price of space is probably not so big a fan of antiques.

Hello,

great job, I'm finished and delighted with the relatively small amount of components.

I have four questions.

1. Some resistor values are not on the list of elements, ie are they jumpers or aren't they mounted?
2. As I understand correctly, to have a different platform, FPGA should be reprogrammed or maybe in the menu it is possible to choose the platform that will be loaded - it would be great but I understand that there are some limitations.
3. Will there be an implementation of C64 and the ability to load files into it from an SD card
4. What configuration was the Wolfenstein fired on, was it Amiga or something else?

If you would like the housing, I can design and print it on a 3D printer, you can then share it - if you wish

Best wishes

blue_17 wrote:

1. Some resistor values are not on the list of elements, ie are they jumpers or aren't they mounted?

Those on the underside at the station connector are not mounted.
F1 and F2 - ferrite at SD, 0.5A polymer fuse at JOY1

blue_17 wrote:

2. How well I understand to have a different platform

There is a menu (penultimate video in the first post).

blue_17 wrote:

3. Will there be an implementation of C64 and the ability to load files into it from an SD card

In preparation, 100% can be done, but I don't know if it won't take too long.

blue_17 wrote:

4. On what configuration the wolfenstein was launched

PC, ~ 80186

Thank you for your answer

I am waiting with diligence if there is still an option from C64, I immediately start building.

Thank you, great project!

A few programming related questions.
1. Configuration is programmed by JTAG and is it used for "main (v0.4 beta2) .bin"?
2. Can it be done with the FT2232 converter?
3. The remaining files are loaded from the SD card? I see there are NES and Spectrum files, and Amiga?

No, the luxury version ... , MAIN allows you to load FPGA configuration from SD card to FLASH.
ROMs and other files can be loaded from FLASH or SD.
JTAG for developers.

Thanks :)

Is this AS4C4M16 memory replaceable? It is quite difficult to access.

I found one in Farnell: MT48LC4M16A2

androot wrote:

Is this AS4C4M16 memory replaceable? It is quite difficult to access.

~ 10 PLN at TME.

I looked in Farnell and it wasn't there. Google, however, did not suggest TME. Thanks.

Com sockets are to be male or female?

All DB9 male.

Thanks, I've just ordered. Pcb will also come to me soon.
Tell me what are these mini din sockets, where do you get it?

Or if you could take a picture of the front of the sockets and the bottom of the pcb, I will know what to look for.

Thanks

Board assembled, consumes approx. 20 mA of current. How to prepare an SD card to boot FPGA from it?

The first time you have to load MAIN to flash with some programmer.
Alternatively, upload main_xxxx.a586 to fat32 card (main partition), run fpga via jtag, and F2 update (it will be uploaded to flash).

I include the card image (DOS_ClassicWB.raw.zip).
The first dos partition (it's just command.com) of the core PC.
Second Amiga, don't change.
Make the third fat32 (as the main one). You will throw roms or other files on it.