Re: Re: PetDisk (was Re: Re: 1541 to 2031 adapter (was no subject))

From: hwarin_at_neuf.fr
Date: Thu, 14 Nov 2013 22:24:39 +0100 (CET)
Message-ID: <33485118.559556.1384464279360.JavaMail.www@wsfrf1212>
Hi, Crock

I'm very interested in your experience with PetVet. I will have to manage to prepare "non standard" configurations (IE: RAM only or ROM only) and documentation is really minimal. The first question I have is about "programming" mode : Can it stay in 6502 pet's socket or does it absolutely need to be removed ? [from what I understand from your post, it can stay in the socket, what is, I think, really better] ==> Programming jumper might be replaced by a simple inverter switch

"Extract" from documentation :

Jumper settings and ROM contents can be customized by reprogramming the flash memory on the PETvet’s microcontroller.
To reprogram the PETvet, first remove the PETvet from the PET motherboard.
Move the programming jumper to the left into the “Program” setting as shown:
Connect the PETvet to a terminal, 38400 baud N81. Connect the PETvet to a 5v power source and a message will appear on your terminal indicating that the PETvet is in programming mode.
Start an XMODEM transfer in your terminal program and begin sending the binary that you want to reprogram the PETvet with.
Move the programming jumper back to “Run” mode, and after a second or two you will see the XMODEM transfer begin.
When the transfer is complete, your PETvet is reprogrammed and ready to go.

More details on everything coming soon..

... even the complete 1/2/3 jumpers purpose are quite unclear (from what I understand, it allows selecting 1 configuration over 3 preprogrammed setups ... but a such scheme should allow 8 setups ?? Also, why are those jumpers located all around the board ?)

Other "strange" things on the board are :
- 2*3 pin connector next to the DB9
- 2*3 pads next to the RAM chip
- 4 groups of 2*1 pads "all around" the board

Tous vos emails en 1 clic avec l'application SFR Mail sur iPhone et Android - En savoir plus.


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

Message du : 14/11/2013 17:28
De : crock@clarke-family.org.uk
A : cbm-hackers@musoftware.de
Copie à : 
Sujet : Re: PetDisk (was Re: Re: 1541 to 2031 adapter (was no subject))


 I used the PetVet quite a bit last year, including defining & building 
your own ROM images for upload over the serial port. I also made a 
diagnostic ROM specifically for the PetVET which utilises the banking 
facilities to only replace the top 1k of ROM, allowing it to test the 
machine RAM and checksum the ROM's.

All this was was over a year ago now and I am appallingly bad at writing 
down what I did, but I still have all my scripts and code. Mike provided 
me with some great help. I seem to remember there was a gotcha with 
reloading the firmware - I think you have to initiate the xmodem 
transfer in 'program' mode, wait for it to pause and flick it back into 
'run' mode - all while plugged into a powered on PET - which was fun.

If you get stuck, ping me and maybe I might write something down this 
time. :-)

Rob


On 14/11/2013 17:13, hwarin@neuf.fr wrote:
> I've finally received my PetDisk & PetVet last week .... Many thanks
> to Mike if he reads this !
> 
> What to say ... This are very nice "artisanal" products, I still did
> not tested PetDisk yet (bought soldered, sorry Giovi, I bought it
> soldered & tested mostly because it was not so much more expansive and
> this Safed me a lot of work). I've tested PetVet yesterday and it
> resurected immediately my 8096 (*). Now, I have to diagnose more
> deeply to fugure out what's going wrong (RAM or ROM). Another comment
> would be to say that PetVet documentation and firmware are y very
> minimal (a more sophisticated "monitor" would have been a great idea,
> also, even "screen dump" functions only on left part of the screen, as
> if it was a 40Cols screen !).
> 
> (*) Initial failure on this 8096 is unknown - readable characters on
> screen, beep, but basic won't come up. I've stopped working on this
> piece of hardware since 1 year or so, when power line filter smoked
> and exploded !
> 
> Anyway, I agree that schematics & PCB scans could be very instructive
> (but at Mike prices, I don't think that it's interesting to try to
> duplicate it, since he still provides new units).
> 
> Regards - Hervé
> 
> Tous vos emails en 1 clic avec l'application SFR Mail sur iPhone et
> Android - En savoir plus [1].
> 
> ========================================
> 
> Message du : 01/11/2013 16:25
> De : "Giovi " 
> A : cbm-hackers@musoftware.de
> Copie à :
> Sujet : Re: Re: Re: PetDisk (was Re: Re: 1541 to 2031 adapter (was no
> subject))
> 
> 
> When you will receive the petdisk, can you gently scan the PCB before
> starting soldering and share it? This way we have an easy way to make
> the petdisk at home (since the firmware is freely released)....
> 
> cheers,
> Giovi
> 
>> ----- Original Message -----
>> FROM: hwarin@neuf.fr
>> TO: cbm-hackers@musoftware.de
>> SENT: Tuesday, October 29, 2013 10:16 PM
>> SUBJECT: Re: Re: Re: PetDisk (was Re: Re: 1541 to 2031 adapter (was
>> no subject))
>> 
>> Hi,
>> 
>> I finally had a mail requesting a payment on Paypal in the start of
>> october. I read this mail the 13/10 and sent my payment the 14/10.
>> No news since then; hoping it's on it's way.
>> 
>> Regards - Hervé
>> 
>> Tous vos emails en 1 clic avec l'application SFR Mail sur iPhone et
>> Android - En savoir plus [1].
>> 
>> ========================================
>> 
>> Message du : 21/09/2013 17:38
>> De : "Giovi " 
>> A : cbm-hackers@musoftware.de
>> Copie à :
>> Sujet : Re: Re: PetDisk (was Re: Re: 1541 to 2031 adapter (was no
>> subject))
>> 
>> 
>> True! Mike, I forgot to mention that part but you're right, probably
>> your phone call was the most effective move :-)
>> ----- Original Message -----
>> FROM: MikeS
>> TO: cbm-hackers@musoftware.de
>> SENT: Friday, September 20, 2013 4:56 PM
>> SUBJECT: Re: Re: PetDisk (was Re: Re: 1541 to 2031 adapter (was no
>> subject))
>> 
>> If you don't get an answer I can phone him; that worked the last
>> time people were looking for him on VCF.
>> 
>> MikeS
>> ----- Original Message -----
>> FROM: hwarin@neuf.fr
>> TO: cbm-hackers@musoftware.de
>> SENT: Friday, September 20, 2013 12:25 PM
>> SUBJECT: Re: Re: PetDisk (was Re: Re: 1541 to 2031 adapter (was no
>> subject))
>> 
>> Thanks, Giovi - That's good news, even it he ...... "get married" !
>> 
>> I will post him something in few days.
>> 
>> Regards - Hervé
>> 
>> Tous vos emails en 1 clic avec l'application SFR Mail sur iPhone et
>> Android - En savoir plus [1].
>> 
>> ========================================
>> 
>> Message du : 20/09/2013 02:23
>> De : "Giovi " 
>> A : cbm-hackers@musoftware.de
>> Copie à :
>> Sujet : Re: PetDisk (was Re: Re: 1541 to 2031 adapter (was no
>> subject))
>> 
>> Hi Hervé,
>> 
>> I received my petdisk few weeks ago, but I had to stress a little
>> Mike aka
>> bitfixer.com aka Gubbish from http://www.vintage-computer.com and
>> then he
>> answered at this thread:
>> 
> http://www.vintage-computer.com/vcforum/showthread.php?38209-Use-a-PC-to-emulate-floppy-disk-for-PET/page2
>> 
>> telling us he had a lot of problems in the past months, I mean
>> serious
>> problems: he married :-D
>> I must to check if I still have his email since I didn't bookmark
>> his
>> address, but try to contact him by vintage-computer.com forum, and
>> if he
>> doesn't answer, write me a line and I will try to find his email
>> address for
>> you.
>> 
>> Giovi
>> 
>> ----- Original Message -----
>> From: hwarin@neuf.fr
>> To: cbm-hackers@musoftware.de
>> Sent: Thursday, September 19, 2013 5:42 PM
>> Subject: PetDisk (was Re: Re: 1541 to 2031 adapter (was no subject))
>> 
>> Hi, friends
>> 
>> As Giovi is talking about the Petdisk (from bitfixer.com), I am
>> wondering if
>> someone had (recent ?) news from the author of this interesting
>> hardware or
>> possibly could forward me his "live" mail.
>> 
>> I'm trying to order one since a big while now without success ...
>> the only
>> answer that I had once was that he had trouble to get some parts ...
>> 
>> Regards - Hervé
>> 
>> Tous vos emails en 1 clic avec l'application SFR Mail sur iPhone et
>> Android - En savoir plus.
>> 
>> ========================================
>> 
>> Message du : 19/09/2013 22:25
>> De : "Steve Gray "
>> A : "cbm-hackers@musoftware.de"
>> Copie à :
>> Sujet : Re: 1541 to 2031 adapter (was no subject)
>> 
>> Hi,
>> 
>> I have not done this mod but I'm wondering which version of 1541 did
>> you
>> use? Is it possible that the "patched" rom is for a different rom
>> pair? I
>> can't see any reference to which is the correct part# for the ROM
>> that
>> doesn't require changing. Did you use the ROM from the MASHUP site
>> or did
>> you run the patch routine on your existing ROM?
>> 
>> Steve
>> 
>> From: Giovi
>> To: cbm-hackers@musoftware.de
>> Sent: Thursday, September 19, 2013 3:42:38 PM
>> Subject:
>> 
>> Hi folks!
>> 
>> my name is Giovi (Giovanni Verrua), italian, C= collector, I live in
>> Brazil
>> and I'm new to this list.
>> As Ruud Baltissen (that should receive this post, if I'm right...hi
>> Ruud!)
>> already discovered, I'm not an hardware expert; dummy should be most
>> the
>> correct word :) so I apologize if my further posts will be silly in
>> some
>> way. I also apologize if I will do some mistakes posting to this
>> mailing
>> list. Don't be shy, correct me whenever is needed!
>> 
>> My first question to this list is about the 1541 drive modified for
>> the
>> IEEE-488 interface (in other words, about connecting a 1541 to a
>> PET), this
>> one:
>> 
> http://www.zimmers.net/anonftp/pub/cbm/documents/projects/ieee-488/index.html
>> also described at this page:
>> 
> http://vintagemashups.net/2010/12/commodore-1541-ieee-488-conversion/,where
>> I downloaded the patched ROM.
>> 
>> I'm writing this post because, of course, mine doesn't work :) - I
>> checked
>> it twice and I haven't found (yet) the mistake. I will check it
>> again. No
>> answer from the 1541 and no reset when the 8032-sk is switched on or
>> off.
>> 
>> I'm sure that:
>> - the 1541 drive is ok
>> - the 6522 is ok
>> - the socket adapter is ok
>> - the EPROM im programmed returns no difference if compared with the
>> patched
>> rom image (so I believe it's ok too)
>> - the ieee cable an connectors are ok
>> - the ieee-488 port of the 8032 is ok since it works fine with the
>> Petdisk
>> (from bitfixer.com).
>> 
>>>>> The question for you: >>> I have a little doubt about the
>> patched ROM:
>>>>> it's showing a different behavior respect the original 901229-05
>> ROM.
>> 
>> - with the original ROM, as usual, the floppy starts to spin and the
>> red
>> light comes on; after few seconds, the light and the spin motor go
>> off in
>> the same moment. Normal behavior for this kind of drive.
>> 
>> - with the patched ROM (with or without the ieee interface) the
>> floppy just
>> spins for a while and then stops, while the red light stays on for a
>> longer
>> time (and then goes off).
>> 
>> Anybody of you C=hackers made this adapter in the past, and can tell
>> me at
>> least if the patched ROM shows this different behavior?
>> 
>> cheers,
>> Giovi
>> 
>> Message was sent through the cbm-hackers mailing list
>> 
>> Message was sent through the cbm-hackers mailing list
> 
> 
> 
> Links:
> ------
> [1]
> http://www.sfr.fr/telephonie-mobile/services-options/services-smartphones/applications-sfr/sfr-mail/android?sfrintid=M_email_signature

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