DIY-A586 v1.6 by piotr_go

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#181 19742161 03 Dec 2021 07:15

TomekMierzwa TomekMierzwa

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Post #181
19742161 03 Dec 2021 07:15

A few screenshots from Miami and connecting to the net
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#182 19778101 23 Dec 2021 01:02

TomekMierzwa TomekMierzwa

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Post #182
19778101 23 Dec 2021 01:02

Hello
There is a new Kickstart 3.2.
Will it be possible to make a patch for it?
#183 19778469 23 Dec 2021 11:09

piotr_go piotr_go

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Post #183
19778469 23 Dec 2021 11:09

Probably only after the new year.
I'm just sitting on my own core instead of minimig.
It will take a little longer to do with that. There is a blitter to do and some DMA fixes.
[movie: e9f5931304] https://filmy.elektroda.pl/34_1640253837.mp4 [/ movie: e9f5931304]
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#184 19778586 23 Dec 2021 12:18

TomekMierzwa TomekMierzwa

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Post #184
19778586 23 Dec 2021 12:18

I'm waiting, maybe something interesting will arise.
And the option with a physical disk drive is great, I was able to run demos from floppy disks that I have long forgotten.

What is the possibility (description) of what should be changed in a kickstart?
Maybe some module to replace so that you can make your own?
#185 19778613 23 Dec 2021 12:33

piotr_go piotr_go

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Post #185
19778613 23 Dec 2021 12:33

TomekMierzwa wrote:
What is the possibility (description) of what should be changed in a kickstart?
Maybe some module to replace so that you can make your own?

Replace scsi.device with that from the attached archive.

Attachments:

scsi.device_v0.7.tar.gz (2.7 KB) You must be logged in to download this attachment.
#186 19778639 23 Dec 2021 12:48

TomekMierzwa TomekMierzwa

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Post #186
19778639 23 Dec 2021 12:48

Thanks, I'll test it.
I'm also waiting for the Remus guy to add something to open a new kickstart.
#187 19791475 30 Dec 2021 23:30

piotr_go piotr_go

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Post #187
19791475 30 Dec 2021 23:30

There are still a lot of bugs, but something is already working.
#188 19792215 31 Dec 2021 13:49

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Post #188
19792215 31 Dec 2021 13:49

And when will it be available for download (github?)
#189 19792991 31 Dec 2021 23:56

piotr_go piotr_go

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Post #189
19792991 31 Dec 2021 23:56

It will come off my own core.
In the meantime, in the attachment, the alpha version of the accelerated minimiga.
Alpha because something with a blitter (probably a blitter) is sometimes wrong.

Happy New Year.
#190 19828441 18 Jan 2022 21:09

TomekMierzwa TomekMierzwa

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Post #190
19828441 18 Jan 2022 21:09

piotr_go wrote:

TomekMierzwa wrote:
What is the possibility (description) of what should be changed in a kickstart?
Maybe some module to replace so that you can make your own?

Replace scsi.device with that from the attached archive.

Hello
I'm trying to add your scsi.device to the kicstart.
File contains DSS hunk.

Any suggestions?
#191 19829118 19 Jan 2022 09:00

piotr_go piotr_go

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Post #191
19829118 19 Jan 2022 09:00

I use "romtool" with "amitools".
#192 19829402 19 Jan 2022 11:44

TomekMierzwa TomekMierzwa

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Post #192
19829402 19 Jan 2022 11:44

Unfortunately, I do not know this program, I will have to read.
And you do not know if it is possible to somehow avoid this error?
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#193 19829602 19 Jan 2022 13:14

piotr_go piotr_go

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Post #193
19829602 19 Jan 2022 13:14

Zobacz to scsi.device (do amiga v0.4 alpha).

Attachments:

scsi.device_v0.8.tar.gz (2.68 KB) You must be logged in to download this attachment.
#194 19857456 01 Feb 2022 16:06

yngwie78 yngwie78

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Post #194
19857456 01 Feb 2022 16:06

Hello everyone.
I wanted to ask which FPGA model was compatible with this project.
Thank you.
Sorry for my English, I'm Italian.
#195 19859024 02 Feb 2022 10:26

piotr_go piotr_go

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Post #195
19859024 02 Feb 2022 10:26

XC6SLX9-2TQG144
#196 19859664 02 Feb 2022 15:30

samowitsch samowitsch

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Post #196
19859664 02 Feb 2022 15:30

See here: https://www.elektroda.de/rtvforum/topic3598849.html#18067213
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#197 19860522 02 Feb 2022 20:27

TomekMierzwa TomekMierzwa

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Post #197
19860522 02 Feb 2022 20:27

Is it possible to share the _bin2a586_ code?
I would like to compile it for Mac, I use it a lot and it was easier to test.
#198 19860901 02 Feb 2022 22:37

piotr_go piotr_go

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Post #198
19860901 02 Feb 2022 22:37

Code: C / C++
Log in, to see the code
#199 19861561 03 Feb 2022 12:13

TomekMierzwa TomekMierzwa

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Post #199
19861561 03 Feb 2022 12:13

Thanks has compiled :)

Is amiga bin version v0.4 alpha.tar.gz maybe available somewhere to make your own a586?
#200 19861594 03 Feb 2022 12:24

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Post #200
19861594 03 Feb 2022 12:24

Trim * .A586 after 342912B and it will be BIN.
#201 19861677 03 Feb 2022 13:14

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Post #201
19861677 03 Feb 2022 13:14

I made the Hex Editor and it came out like this, is it ok?

Attachments:

amiga.bin (334.88 KB) You must be logged in to download this attachment.
#202 19861688 03 Feb 2022 13:18

piotr_go piotr_go

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Post #202
19861688 03 Feb 2022 13:18

It looks ok.
#203 19861714 03 Feb 2022 13:32

TomekMierzwa TomekMierzwa

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Post #203
19861714 03 Feb 2022 13:32

Thanks, I understand that the lengths of the 03 and 04 versions may be different.
#204 19861735 03 Feb 2022 13:46

piotr_go piotr_go

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Post #204
19861735 03 Feb 2022 13:46

342912B is the maximum length that the BIN can be (for bin2a586).
The BINs for the XC6SLX9 should not exceed it.
#205 19879348 12 Feb 2022 07:14

TomekMierzwa TomekMierzwa

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Post #205
19879348 12 Feb 2022 07:14

piotr_go wrote:
See this scsi.device (for amiga v0.4 alpha).

Unfortunately, I fell.
It is true that Remus puts the kickstart correctly, but then the amiga overhang and that's it.
It's a pity, because he would have made his own kickstart.
#206 19879701 12 Feb 2022 12:24

piotr_go piotr_go

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Post #206
19879701 12 Feb 2022 12:24

Have you deleted the old scsi.device?
#207 19881126 13 Feb 2022 04:16

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Post #207
19881126 13 Feb 2022 04:16

Of course, once manually and once automatically, it is enough to click on the new one and it replaces it
#208 19884102 14 Feb 2022 17:49

piotr_go piotr_go

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Post #208
19884102 14 Feb 2022 17:49

Attached is the own core of the amiga.
Known bugs: NTSC missing.
On the plus side: faster speed, CRT TV modes, FFmanager works.

Attachments:

mikan_v0.1.tar.gz (188.85 KB) You must be logged in to download this attachment.
#209 19891382 18 Feb 2022 12:08

TomekMierzwa TomekMierzwa

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Post #209
19891382 18 Feb 2022 12:08

I understand that kickstarts are the same as for minimiga cores.
Wouldn't you make patha to 3.2.1?
#210 19891636 18 Feb 2022 14:06

piotr_go piotr_go

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Post #210
19891636 18 Feb 2022 14:06

TomekMierzwa wrote:
I understand that kickstarts are the same as for minimiga cores

This patch is newer 0.8, attached together with the core.

Hmmmm, maybe I will try to make a stable version of core 0.3 minimig to match this driver so as not to duplicate the ROMs.
https://github.com/piotr-go/FPGA/blob/master/...ores/amiga/minimig/v0.3.5/minimig_v0.3.5.a586

TomekMierzwa wrote:
Wouldn't you make patha to 3.2.1?

I'll try to send it around Wednesday.
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Topic summary

✨ The discussion revolves around the DIY-A586 v1.6, a retrocomputing emulator designed by Piotr Go, featuring an FPGA Spartan6 XC6SLX9, 8MB SDRAM, and various connectivity options including HDMI, RS232, and joystick ports. Users inquire about programming the FPGA, configuring floppy drives, and compatibility with different ROMs and cores. The author provides updates on core development, including support for Amiga and PC emulation, and addresses technical questions regarding component specifications, programming methods, and troubleshooting issues related to SD card usage and floppy drive connections. The conversation also touches on the potential for future enhancements and additional cores for other systems like C64 and Atari.
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FAQ

TL;DR: DIY-A586 packs a 100 × 100 mm Spartan-6 board that stores 30 FPGA cores in its 16 MB flash—“Up to 30 configurations in flash can be loaded” [Elektroda, piotr_go, post #18067213] Why it matters: one card swaps instantly between Amiga, PC-XT, C64 and more.

Quick Facts

• FPGA: Xilinx Spartan-6 XC6SLX9-2TQG144 [Elektroda, piotr_go, post #18067213] • RAM: 8 MB SDR SDRAM @ ~56 MHz (Amiga) or 133 MHz CL2 (PC) [Elektroda, piotr_go, post #20583795] • Flash: 16 MB SPI (Winbond 25Q128) — first flash needs external programmer [Elektroda, piotr_go, post #19143673] • Power: 5 V via USB-C; legacy floppy drives need extra 12 V rail [Elektroda, EKBubba, post #19358582] • SD: SDHC (≥4 GB) FAT32 + Amiga RDB, multi-disk driver v0.10 [Elektroda, piotr_go, post #20677771]

What components are mandatory for a working v1.6 board?

Essential parts: XC6SLX9 FPGA, AS4C4M16 SDRAM, Winbond 25Q128 flash, 16 MHz CMOS oscillator, SD socket, USB-C power jack, two SOT-223 LDOs (3.3 V & 1.2 V) and the HDMI level shifters [Elektroda, piotr_go, #18067213 #19178403].

Which SDRAM speed grade should I order?

Any 166 MHz (6 ns) IS42S16400J will run; Amiga core clocks the RAM at ~56 MHz and the PC core at up to 133 MHz CL2 [Elektroda, piotr_go, post #20583795]

How do I flash the board the first time?

Program the 25Q128 with “main v0.4.4” BIN at address 0x000000 using a CH341A or Arduino-SPI flasher [Elektroda, piotr_go, post #19143673]
Solder the chip, short pins 7-8 on first boot if QuadEnable is unset [Elektroda, piotr_go, post #18234470]
Afterwards update cores from SD with the F2 key.

My SD card isn’t recognised—what’s wrong?

The driver needs SDHC cards; old 2 GB SDSC cards fail detection [Elektroda, piotr_go, post #19186591] Format the primary partition FAT32 (MBR) and place *.A586 files in the root.

Can I use PFS3 or multiple virtual hard disks?

Yes. SD.ROM v0.10 adds multi-disk and PFS3 support. Each MBR primary partition type F0 becomes an Amiga unit; FAT volumes stay readable via fat95 [Elektroda, piotr_go, post #20677771]

How fast is the new Mikan 0.1.7 Amiga core?

It delivers ~143 % of real A500 CPU speed and triples SD throughput versus Minimig; audio, bitplane and copper bugs fixed [Elektroda, piotr_go, post #20783590]

Does Gotek or dual-drive work?

With Mikan v0.1.5+ the auto-switch logic makes DF1 the boot drive when it asserts _RDY during reset. Both drives must output _RDY and DF1 should be an emulator that ignores _MTR [Elektroda, piotr_go, post #20677771]

Edge-case: Amiga mouse and PS/2 mouse together?

From Mikan 0.1.9 you may connect either two Amiga mice (joy ports) or one PS/2 mouse; mixing beyond these combos is unsupported [Elektroda, piotr_go, post #21362045]

Why does my vintage Chinon floppy spin but not read?

Early 720 kB drives and A500 units draw 12 V for the spindle, which the DIY-A586 5 V rail can’t supply. Feed 12 V externally or use a modern 5 V-only mechanism [Elektroda, EKBubba, post #19358582]

Can the board emulate 68020 or AGA?

Not on an LX9. “FPGA too small” for AGA/020 cores, states the author [Elektroda, piotr_go, post #19738941]

How do I patch Kickstart 3.2.1 for SD boot?

Run the supplied xdelta script in mikan/kick3.x patch v0.8 then rename the output to KICK32SD.ROM and list it with -fb in bin2a586; checksum must match 75c85b… [Elektroda, piotr_go, post #19898942]

What’s the licence situation—why ‘DEMO LIMIT, 4 CORES MAX’?

Unregistered MAIN limits the flash menu to four cores; request a free personal key from the author via forum PM to unlock [Elektroda, tchernychov query #21048193 and piotr_go reply context].

Does the board support CRT 15 kHz output?

Yes. Set HDMI-to-VGA-to-SCART chain; core outputs 720×576 50 Hz RGB proven on a Thomson CRT [Elektroda, piotr_go, post #19213580]

Failure fact: What bricks PS/2 on cold start?

PS/2 lines could stay low; MAIN v0.4.4 adds a reset pulse that restores keyboard/mouse enumeration [Elektroda, piotr_go, post #20783590]

Where can I source the 16 MHz oscillator?

Use any 3.3 V CMOS clock module, e.g., Microchip DSC6111 16 MHz; crystals won’t work—one caused a Vcc-GND short during assembly [Elektroda, piotr_go, post #19178936]

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