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PEB Flex Card Woes (and FDC TI/Myarc possibly)


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#1 CantStopClicking OFFLINE  

CantStopClicking

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Posted Tue Jan 9, 2018 1:41 AM

I'm working with a gentleman who's trying to get his PEB up and running.  He just acquired a Myarc FDC card with 80-track upgrade.  I'm trying to build a floppy cable for him, but it seems his Flex card went out before he was able to even get started.  He also has a TI FDC, and I have no reason to believe that either of the FDC's are the problem.

 

I did some initial trouble-shooting with him, and it seems like the Flex is locking up his system, with or without other cards in the PEB.  I suspect the 74LS245's, but doesn't really matter because he doesn't have anyway to do the repair (if it is the flex).

 

I have a Flex card I can offer him, possible trade (I can repair it).

 

However, I don't have a Myarc 80-track ROM set.  I do have a Myarc FDC.  Is there a known good set of 80-track ROM's for it, so I can test his scenario on my system?  Last place I knew to get those was from Richard Bell, but I don't remember if he's on here or still providing.  (My apologies if you here and I have forgotten your screen name).

 

And possibly the documentation as to what the new ROM's provide.  I gather it's a more elegant 80-track solution than the TI one.

 

In addition, Is anyone else helping someone with this problem?  Speak up if so...  Trying to communicate via the other service is driving me f'ing insane.

 

TIA

 

-Dano

 



#2 Schmitzi OFFLINE  

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Posted Tue Jan 9, 2018 3:01 AM

Hi Dano,

 

I bought my 80-ttracker from Barry Boone some years ago, so here is what I got from the chip.

I never tested it, and I think there are more "common" files for that, so maybe wait a little bit here.

 

It also would be interesting to see if Barry made some changes on that.... ? ;)

Maybe one can compare the files ? (if posted here)

 

Ralf

 

PS Find the type of Eproms that I have in the filename.

 

Attached File  MyArc-FDC-80-Track-Schmitzi.zip   6.19KB   6 downloads



#3 AMenard OFFLINE  

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Posted Tue Jan 9, 2018 7:11 AM

Try user Atrax27407 here. He does sell the TI 80track roms, maybe he can program some MyArc one too.



#4 atrax27407 OFFLINE  

atrax27407

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Posted Tue Jan 9, 2018 7:18 AM

I have V1.5 of the Myarc 80-trk EPROM.



#5 AMenard OFFLINE  

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Posted Tue Jan 9, 2018 7:21 AM

I have V1.5 of the Myarc 80-trk EPROM.

 

Right on cue!  :-D



#6 Lee Stewart ONLINE  

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Posted Tue Jan 9, 2018 8:09 AM

However, I don't have a Myarc 80-track ROM set.  I do have a Myarc FDC.  Is there a known good set of 80-track ROM's for it, so I can test his scenario on my system?  Last place I knew to get those was from Richard Bell, but I don't remember if he's on here or still providing.  (My apologies if you here and I have forgotten your screen name).

 

Richard is Swim, I believe.

 

...lee



#7 CantStopClicking OFFLINE  

CantStopClicking

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Posted Tue Jan 9, 2018 3:51 PM

Thank you all for the quick responses!

 

I'll have to tackle this later tonight.

 

Cheers!



#8 CantStopClicking OFFLINE  

CantStopClicking

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Posted Tue Jan 9, 2018 3:52 PM

 

Richard is Swim, I believe.

 

...lee

 

Yes, that's it!  How could I forget, too easy I guess...



#9 Pheonix OFFLINE  

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Posted Sun Jan 14, 2018 6:46 PM

The replacement Flex Cable interface works just fine :)

 

Still working with MyArc... Turns out I had the switches backwards.  It double steps just fine for 40 track disks :)  Still working on getting a 5.25" drive that will work right.  Seriously considering trying one of the QD drives I've found.






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