DIY-A586 v1.6 by piotr_go

I have a question, have you checked if FFmanager works, if so, what version of flash floppy do you have in gotek? Thanks a lot. greetings

I don't use gotek. I checked a few years ago on a borrowed one, but it was with HxC firmware.

From what I can see FFmanager gives a dark blue screen. No bug just hanging.
The LED from the flop is not on, so the error is probably somewhere else. I can't think of anything.
Are FFmanager sources available to see what and how?

Got one of these from Ranko, configured as an Amiga, and I asked if it was possible to change the HDMI output to a typical 4:3 ratio and resolution, like 1280x1024, etc.

I tried a Dell Precision 15" via HDMI/DVI and it displayed "out of range", which suggests the board is outputting 1080p. (FYI, it works on a 31" Asus monitor, no problems)

Also, what is the general process to change the emulation to something like an old-school PC, like some of the videos? Is special programming hardware required?


Thanks for making a great board!

You should switch aspect ratio in your TV settings.

In amiga core (ps/2 version) you can switch resolution with "print screen" key.
(720x576, 640x512, 640x480)
There is no support for 1080p.

Hi!

Sorry for the badly worded question. What I meant was how do you switch from the Amiga emulation to the IBM PC emulation? (same question would apply to coin-operated arcade game emulation, etc.)

From what I have read elsewhere, the PC emulation is fairly limited, giving performance of the early 486 era (25MHz). Would the PC emulation emulate VGA graphics at 640x480 (and lower modes?)


With respect to the Amiga monitor modes, I must assume that modern HDMI monitors simply adapt to whatever signal is present and this disguises the actual resolution being displayed. In the case of the older Dell display, it must be a simple issue of it not receiving a signal in the range it requires. The "print screen" key may work, I'll try it...


Thanks again!

Dodano po 7 [godziny] 23 [minuty]:

FYI, only one out of three 4:3 LCD monitors I've tested worked properly with the Amiga configuration ("print screen" had no effect, it adds borders in some cases)

In this image, the Lenovo 15" monitor will display an image, but the "Input signal out of range" message cannot be suppressed. A Dell monitor was blank with the same message and a Viewsonic 17" monitor seemed to work OK.

With respect to the "print screen" resolution chocies, which one is the default and what is the sequence when you press the key? (seems to loop after two presses...)

EKBubba wrote:

("print screen" did not work, adds borders in some cases)

This is what it is supposed to do, the "print screen" truncates the resolution to remove the frames.

EKBubba wrote:

"Input signal out of range"

Probably the 50Hz refresh is the problem.
I will try to send the 60Hz NTSC version.

720x576 (default), 640x512, 640x480, 720x576 (default).

Just a FYI for those that might be trying to use original Amiga floppy drives, or "old" PC 720k drives.

Really old (non 1.44MB) 3.5" floppy drives actually used the +12V power that was part of the original ATX standard. The Amiga 500 uses a full 4-pin cable and supplies 12V on that floppy power pin. My rev. 5 Amiga 500 had a Chinon drive that clearly uses the 12V power and thus will not work on the A586 board, without external 12V power.

The same goes for an original Amiga 1000 drive; it will make "seek" noises when the board tries to access the floppy, but the motor does not turn.

---

Here's a "fix": most older external PC/Mac hard disk drives used a combined 12V/5V power supply, so I just hacked one to supply 12V/5V to the Amiga 1000 floppy and 5V to the A586. Works great!

Big Kudos to Piotr for having the foresight to include a separate power-input jack! Hacking a USB-C cable would have been just an extra hassle!

I am enclosing the sources for Next186.

piotr_go wrote:

Yes. Amiga sources will be released when webpage is ready.

Hi. I am very interested in this project. When is the mentioned webpage ready? thx

I just ordered pcb's of the DIY-A586. I hope there is no newer version than v1.6 out there

Quote:

How works the programming of the flash in detail?

I investigated and i think i know now how to flash
There must be one initial programming (e.g. CH341A programmer). All follow programmings can be done from sd-card.

Is it based on Minimig Core?
What i have not found is an amiga.bin file Or did I miss that?

samowitsch wrote:

When will the website be ready?

I ended my cooperation with Ranko Rodic, so probably never.
We agreed on a specific amount, after selling x pieces, I found out that I would not get that much.
Why? I haven't been able to find out. As you can see, he deleted the account. People are not serious.

samowitsch wrote:

Hope there is no newer version than v1.6

There is no. :)

samowitsch wrote:

All subsequent programs can be made from the SD card.

Yes

samowitsch wrote:

Is it based on the Minimig Core?

Yes

=====================

I just finished soldering the DF0 / 1 splitter on the PIC16F15313 as a motor signal latch.
I gave the PIC instead of the 74xx because of the dimensions.

piotr_go wrote:

F1 - polymer fuse 0.5A
F2 - ferrite bead (under sd card)
1N4148

What are the exact footprint sizes and values here?

THX

F1 - 0805
F2 - 0603
1N4148 - 0603

piotr_go wrote:

I ended my collaboration with Ranko Rodic, so probably never.
We have agreed on a certain amount. After selling x pieces, I found that I don't get that much.
Why? I couldn't find out. As you can see, he deleted the account. People are not serious.

Yes, that's stupid if it doesn't pay off. What did a complete board or set cost?

piotr_go wrote:

I just soldered the DF0 / 1 splitter on the PIC16F15313 as a motor signal latch.
I gave the PIC instead of the 74xx because of the dimensions.

The floppy adapter is really cool! The video is not public and not in your playlist, was that on purpose?

The AS4C4M16SA-5TCN is hard to come by. Do you think that an AS4C4M16SA-6TCN would also work?

Greeting.

Hi
Extra, I can see that two stations have been launched successfully. I want to ask if you have one redundant PCB or only pcb for resale? Thanks.
greetings

In the end, I got pcb
Initially, the recording did not work. I wasted the whole day looking for mistakes that were not there.
The tape on which I tightened the flop connectors was to blame.
Echhhh

I ordered a minimum quantity of PCBs, but I can share.
I will contact via pm.

Where can I get/buy these pcb?

This is a really great project!!!

Thanks!

Doom on RISC-V.
Software scaling and color indexing, so far no FPS revelation.

I added hardware scaling and color indexing.
Doom FPS increased to ~ 45.
There is still sound to be done.

I wrote a simple MP3 player.

I did some tests to determine how much computing power I have at my disposal.
The MP3 decoder is able to decode a 320kbps file with a duration of 4:05 in a time of 2:05.
Card read file.

pombearman wrote:

Hello

I managed to connect the DF0 and Gotek DF1 drives and everything works except for the FF program for Gotek. After the start there is only a blank screen. Works fine on Amiga 500. I'm using Flash Floppy 3.22. Do you have any idea what could be causing this? The problem with the two drives is caused by their conversion, since even one drive had problems with Gotek. One day I'll make more attempts ?

Hello pombearman. Can you describe in more detail how you got the Gotek and the floppy to work together? It looks like this for me at the moment.

Both drives are attached to the floppy splitter. The Gotek is not recognized and the floppy drive is always DF0 regardless of the order in which I connect it. I would like the Gotek as DF0 and the floppy as DF1. Does the splitter only work with Kick3.1?

You can find my case versions here: https://www.thingiverse.com/thing:4899891

Regards

Hello.
Great project.
Slowly I started ordering parts and slowly putting it back together. Today the W25Q128JVSIQ arrived and the question arose - how to program it?
I do not have a CH341A programmer like in one of the photos (yet, because I have already ordered, but it is coming from aliexpress, so it will probably be in 3 weeks).
I have CH340D, FT232RL programmers, USB programmer for AVR ARDUINO PLY141, PICKIT3.
Will any of them be suitable for programming this memory? Is there a manual somewhere how to flash such memories? I would like to solder in the processor legs, but I do not know which and what to program it. Is there any upload software? Any command? Does this somehow get into flashing mode?

The second question is about the 16Mhz generator. Is this the item?
https://www.aliexpress.com/item/20pcs-lot-322...Z-4pin-Passive-SMD-crystal/4000321594786.html
If not, what item to look for? Will I get something on TME / Allegro or another Polish store or on aliexpress?

shafty wrote:

But I have CH340D, FT232RL programmers, USB programmer for AVR ARDUINO PLY141, PICKIT3.

As far as I know, neither of them supports spi flash.
If you have arduino, google "arduino bios programmer".

shafty wrote:

Will any of them be suitable for programming this memory? Is there a manual somewhere how to flash such memories? I would like to solder in the processor legs, but I do not know which and what to program it. Is there any upload software? Any command? Does this somehow get into flashing mode?

FPGA doesn't have any bootloader that could be used for this.

shafty wrote:

The second question is about the 16Mhz generator. Is this the item?
https://www.aliexpress.com/ite...SMD-crystal/4000321594786.html

No, it's a resonator, not a generator.
In tme, from what I can see, they currently have nothing. Bida with misery, only vinegar on the shelves.
They have something here:
https://www.aliexpress.com/item/1005002453257265.html

Thanks a lot, I put the board together and it works. However, I have a few questions about the design.
1. Do you plan to emulate other computers apart from those you put here? What about Atari? I would dream of launching an Atari ST on this hardware next to the Amiga. Is it even possible?
2. I launched the NES emulation but I have a problem with the control. The games even fire for me, but I can't control them. The Amiga joysticks do not work and the keyboard connected to the PS2 allows you to move the cursors but no other buttons work (or at least I do not know how to find them, it seems that I flew all the buttons on the keyboard and I did not find them. NES? What?
3. I don't have an Amiga floppy drive but I have gotek. I connected it and I have a problem with launching some games that are on more than one floppy disk. Fire force on 2 floppy disks went without a problem (after replacing the floppy disk with the other one, fire is pressed and goes on), while the dune 2 after changing the floppy disk does not go any further. Maybe you need some other firmaware or some special jumper setting? It seems that dune 2 detects other floppy disks differently than fire force, it seems that dune does not need to be pressed fire.
4. How to work on C64? Ongoing or have you abandoned the project?
5. Spectrum. I have never had such a computer and I do not understand what's going on here either. Some instruction on how to handle it would be nice.

1. I can't do everything myself.
I am planning my own core amiga (already started), c64 and some experiments with my own SOC.

2. ZXCV - 1/2 change is raining
https://github.com/piotr-go/FPGA/blob/master/DIY-A586/cores/nes/snes_pad_adapter.tar.gz

3. Dune 1/2 I have just checked and they work. I tested on kick 3.1
When changing the floppy disk, I did not press anything, it detected itself.

4. The C64 works but there is no emulation of the floppy drives.

Maybe you managed to do path to kickstart 3.2?

Tom

In Attachment.

Thanks for patha

Added after 43 [minutes]:

Such a slightly layman's question, how to add next configurations for the Cora Amiga with 3.2 and 3.2SD kickstarts?

https://github.com/piotr-go/FPGA/tree/master/DIY-A586/cores/_bin2a586_

Thanks, I made it :)

Can you buy the full version of this somewhere?
I have installed 5 "cores" and when I try to run 5 I am writing DEMO LINIT, 4 CORES MAX

Does path on kickstart somehow determine the filesystem?
I would like to install PFS-AIO, but after creating a partition, loading pfs, changing the file type and restarting, I cannot see the partition to the.

Tom

TomekMierzwa wrote:

I have a question, is it possible to buy the full version of this somewhere?

You can register. I will send the info to PW.

TomekMierzwa wrote:

Does path on kickstart somehow determine the filesystem?

He should not. Someone seems to have a similar problem here:
http://eab.abime.net/showthread.php?t=90911