FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

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MikeKee
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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by MikeKee » Tue Feb 06, 2018 5:13 pm

I don't suppose anyone has one for sale?

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daveejhitchins
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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by daveejhitchins » Thu Oct 04, 2018 4:06 pm

I thought I'd post this here, as I wasn't sure where else would be relevant . . .

Rummaging through some more of Dave Moore's (Arcadian) BOXES, that he's entrusted to me, I found some part built Slogger Pegasus boards - 7 in total.

5 of them are issue A boards e.g. the same as the ones in this thread - but different in that they don't have 'curly' tracks and have one extra jumper (I'll see where its connected too later). See photos below.

2 of them are issue B boards :shock: Not noticed these before. No 'curly' tracks, again, and more extra jumpers. Some work to do here to see what they're for :D
IMG_2906.jpg
Issue A
IMG_2905.jpg
Issue A
IMG_2904.jpg
Issue B
IMG_2903.jpg
Issue B
IMG_2902.jpg
Issue B
IMG_2895.jpg
Issue B
Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by daveejhitchins » Sun Oct 07, 2018 10:28 am

Here's an annotated schematic (courtesy of Prime) showing the added features of Pegasus board Issue B.

The quality is just good enough to see the details.

Dave H :D
IMG_2907.tif
Edit: The position of the RAM has also changed to the left hand socket (IC3) - so there may be another schematic change.
Edit: The DFS is now fitted in IC2
Last edited by daveejhitchins on Sun Oct 07, 2018 5:22 pm, edited 2 times in total.
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by daveejhitchins » Fri Nov 16, 2018 9:33 pm

While at the recent Leicester ABUG I collected some bits and pieces for the Slogger Pegasus Disc Interfaces from Alex. I can now report that I have PCBs to make-up 21 of these. 2 of which are ready, 1 spoken for . . . I should have enough parts by mid next week to build-up the rest.

If anyone is still wanting one (?) just PM me. I haven't, as yet, got a final price! (Will publish here when I have.) For Forum members I'll do kits or built - with or without a full-metal-jacket in the form of a Acorn colour matched case :D I should also have, by then, a reprint of the Slogger Pegasus 400 User Guide, including the Installation Instructions.

Just in time for your Christmas stocking . . .

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by Slo » Sun Nov 18, 2018 5:02 am

Id like one Dave with a case and manual too if possible please.
Thanks
Andrew

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by daveejhitchins » Sun Nov 18, 2018 7:55 pm

Prices for the remaining 21 Slogger boards:

Kit, no case - £34.00
Kit, with case - £43.85
Built, no case - £36-92
Built, with case - 46.78

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by daveejhitchins » Sun Nov 18, 2018 8:00 pm

I changed the links, on the Pegasus PCB to have the DFS ROM physically next to the RAM and to ensure it was in the cartridge socket's highest slot number. The main reason was the latter to ensure that DFS came up as default if you also had ADFS in place. But it doesn't!!! Anyone know why it wouldn't be the default filing system, despite being in a higher socket # than ADFS???

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by daveejhitchins » Mon Nov 19, 2018 6:07 pm

Just going through the Pegasus 400 User Guide and would like to query the following:

Code: Select all

Second sector
          Bytes

      &00 - &03   Last four bytes of disk TITLE
      &04         Cycle number
      &05         Number of filenames in the catalogue (x 8)
      &06         Bits 0,1   Number of sectors referenced by the
                             catalogue (2 high order bits of 10 bit
                             number).
                  Bits 4,5   Start up option (BOOT)
      &07         Number of sectors referenced by the catalogue (18
                  low order bits of 10 bit number).
This:
&07 Number of sectors referenced by the catalogue (18
low order bits of 10 bit number.

doesn't look correct!

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by MartinB » Mon Nov 19, 2018 6:23 pm

You are correct to query it, should say the 8 LSB's... :wink:

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by daveejhitchins » Tue Nov 20, 2018 7:19 am

MartinB wrote:
Mon Nov 19, 2018 6:23 pm
You are correct to query it, should say the 8 LSB's... :wink:
Thanks, Martin . . .

Any ideas about the Default Filing System selection at Power-Up/Ctrl/Brk?

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ARA III, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by MartinB » Tue Nov 20, 2018 7:36 am

I saw that and have been having having a play with various disc interfaces and rom configs - I'll report back tonight but don't know yet if it'll be an answer!

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by MartinB » Tue Nov 20, 2018 9:58 pm

Dave - could you post an image of the ADFS rom you are using please? I've got plenty of the Peg 400 DFS roms but my only Elk ADFS rom has just died for some reason :roll: so I need to blow another. If you could post a suitable image it would save me ferreting around for the right one.... :)

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by CMcDougall » Wed Nov 21, 2018 5:19 pm

MartinB wrote:
Tue Nov 20, 2018 9:58 pm
my only Elk ADFS rom has just died for some reason
look on the bright side Martin, it's done you (& all elk users) a favour doing that itself :lol: =D>
ImageImageImage

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Re: FS: SLOGGER PEGASUS Electron Disk Interfaces *NEW*

Post by MartinB » Wed Nov 21, 2018 6:33 pm

Ha ha! That was my first thought Col but then I remembered I'd said I'd have a look at Dave's query so I'll have to blow another..... :roll: :wink:

(...and he's sent me an image offline btw so thanks Dave! 8) )

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