OSI + Gotek (youtube video)

nama
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OSI + Gotek (youtube video)

Post by nama » Tue Sep 18, 2018 9:23 am


2P (1mhz 32k) - 502 + 8k + CEGMON + garbage collector fix BASIC, D&N MEM-CM9 + 24k, 540 (mono), D13 + Gotek
4PMF (2mhz 24k) - 505, 540, 527, D13 + 5.25" + Gotek
Superboard RevD - CEGMON
Spares - 2 x 527, 1 x 527 [600, 610, D13 boards]

MK14HAK
Posts: 351
Joined: Wed Mar 16, 2011 1:49 am
Location: New Zealand

Re: OSI + Gotek (youtube video)

Post by MK14HAK » Tue Sep 18, 2018 9:27 am

Yeah. 8-)
600RevB:16K,2MHz,64x32,470,CEGMON
SuperKit:502,540B,542B,CEGMON, 8" and 5" FDDs
Cards:PE IO,6522 D-A-D, AY3-8910,ProgramGraphics,Color,UK101
WIP:HexDOS,FDD Emulator

Jeff
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Joined: Fri Mar 07, 2014 4:44 am
Location: British Columbia, Canada

Re: OSI + Gotek (youtube video)

Post by Jeff » Tue Sep 18, 2018 5:57 pm

VERY COOL!!!
Image

Steve Gray
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Re: OSI + Gotek (youtube video)

Post by Steve Gray » Tue Sep 18, 2018 6:12 pm

Very nice! I have a gotek drive I bought for Amiga but never used yet. Now all I have to do is get my C4P working...

Steve
C4P working, C1P working. 600D Replica working, C4P+D&N floppy not working. 505 board, 610 board, Mittendorf board, TOSIE hacker board need testing, PicoDOS disk untested.

dave
Site Admin
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Re: OSI + Gotek (youtube video)

Post by dave » Tue Sep 18, 2018 7:17 pm

What a breakthrough!

Now, we need a way to convert between the HFE images and the WinOSI disk format (since that's the de-facto standard, and it's very compact).

Once we have that, we've solved the problem of bringing up an OSI disk system without any pre-existing disks, without having to manually construct the disks over the serial port.

MK14HAK
Posts: 351
Joined: Wed Mar 16, 2011 1:49 am
Location: New Zealand

Re: OSI + Gotek (youtube video)

Post by MK14HAK » Wed Sep 19, 2018 5:41 am

having to manually construct the disks over the serial port
breakthrough! here too ...
600RevB:16K,2MHz,64x32,470,CEGMON
SuperKit:502,540B,542B,CEGMON, 8" and 5" FDDs
Cards:PE IO,6522 D-A-D, AY3-8910,ProgramGraphics,Color,UK101
WIP:HexDOS,FDD Emulator

nama
Posts: 299
Joined: Wed Mar 30, 2011 9:44 am
Location: New Zealand
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Re: OSI + Gotek (youtube video)

Post by nama » Wed Sep 19, 2018 5:47 am

Can't wait Mike...

2P (1mhz 32k) - 502 + 8k + CEGMON + garbage collector fix BASIC, D&N MEM-CM9 + 24k, 540 (mono), D13 + Gotek
4PMF (2mhz 24k) - 505, 540, 527, D13 + 5.25" + Gotek
Superboard RevD - CEGMON
Spares - 2 x 527, 1 x 527 [600, 610, D13 boards]

lowrybt1
Posts: 135
Joined: Sun Mar 08, 2015 3:42 pm

Re: OSI + Gotek (youtube video)

Post by lowrybt1 » Tue Sep 25, 2018 5:11 am

This is a great development! For those of us who are tech-challenged and plodding along using legacy hardware and disks only, is there any chance of getting a step-by-step primer for achieving just what you did with your C4P?

Thanks, Tom
C4PDF w. 24K, 2 x 5.25 MPI B-51 drives
C1P RevB with fully-populated 610 board and A-13. Klyball D-13.
Spares: 600 Rev.D, 610 board, 540A, A-13 with homebuilt data separator, MPI B-51 logic board (w/o data sep module) and mechanicals

nama
Posts: 299
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Re: OSI + Gotek (youtube video)

Post by nama » Thu Sep 27, 2018 9:15 pm

Yes I could do that at some point soon.
Phil

2P (1mhz 32k) - 502 + 8k + CEGMON + garbage collector fix BASIC, D&N MEM-CM9 + 24k, 540 (mono), D13 + Gotek
4PMF (2mhz 24k) - 505, 540, 527, D13 + 5.25" + Gotek
Superboard RevD - CEGMON
Spares - 2 x 527, 1 x 527 [600, 610, D13 boards]

nama
Posts: 299
Joined: Wed Mar 30, 2011 9:44 am
Location: New Zealand
Contact:

Re: OSI + Gotek (youtube video)

Post by nama » Thu Sep 27, 2018 10:19 pm

Here is the process that allowed me to get the Gotek floppy emulator working on my C4P-MF

I had been struggling with my MPI drive for a number of years now, I even got a second MPI drive but that ultimately failed too. These drives are getting very old. My realisation was that I needed to upgrade my drive to a (slightly) more modern 1/2 height drive. Unfortunately the data splitter is built into the MPI drives and a solution need to be found:

1) Purchase a 1/2 height 5.25” 360k drive

2) Order a Klyball D13 Data splitter and build it up

3) Install the D13

4) Using a O-Scope set the timing to 6us on the D13

5) Build (or buy) a cable. ID32 connect to D13 side. Older style CE34 on the disk side.

6) Test setup. Worked!!!! (although some disk written on the MPI drives were a little problematic with loading on the new drive. This was probably due to head alignment differences)


Now for the Gotek part. First thing you will need to do is get a Gotek drive, and flash it for either HxC (10 Euros) or FlashFloppy (free).

http://torlus.com/floppy/forum/viewtopi ... 486#p16455

or

https://github.com/keirf/FlashFloppy/wi ... rogramming


After some discussion with the HxC and FlashFloppy guys, it was decided that a Kryoflux dump of an OSI disk would be needed. Dave offered to purchase a Kruflux, and was able to dump a C4P 5.25” floppy (Tutorial Disk 5) to a kryoflux RAW multi file format.

7) Add another ID32 to the connector I built. This cable will now connect to both the Gotek drive, and the 1/2 height 5.25” 360k drive.

8) Plug the Gotek in. Don't forget that one drive will need to be set as drive 1, and the other as drive 2. This is done with jumpers on the drives. Drive 1 will be the boot drive. I have my Gotek setup as the boot drive 1.

9) You will need to find a way to power the Gotek. I used something like this to power both the 5.25" drive and the Gotek off the original PSU:

https://www.ebay.com/itm/4-Pin-Molex-Ex ... Sw9hlamSXW

10) I was able to take Dave’s RAW multi file Kryoflux dumps and convert them to .hfe format using HxC tools.

11) Rename the resultant .hfe file to DSKA0000.HFE, then load the .hfe file and an appropriate .CFG file onto a Fat16 or Fat32 formatted USB drive. Plug the USB drive into the Gotek.

12) If all goes well, then you should be able to boot from, or access the Gotek drive from the OSI.

13) I was then able to dupe up the DSKA0000.HFE disk image on the USB drive and rename them to DSKA0001.HFE, DSKA0002, DSKA0003.HFE etc. and make disk copies from real disks to the disk images on the Gotek.

DONE

That's all from memory, so hopefully I didn't forget anything.

Phil

2P (1mhz 32k) - 502 + 8k + CEGMON + garbage collector fix BASIC, D&N MEM-CM9 + 24k, 540 (mono), D13 + Gotek
4PMF (2mhz 24k) - 505, 540, 527, D13 + 5.25" + Gotek
Superboard RevD - CEGMON
Spares - 2 x 527, 1 x 527 [600, 610, D13 boards]

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