Author Topic: 128 Function ROM  (Read 28173 times)

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Offline RobertB

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Re: 128 Function ROM
« Reply #25 on: February 18, 2009, 08:27 AM »
It might be interference with JiffyDOS, since I get the JiffyDOS '@$' command with F1.
     So, in other words, with the 128 Function ROM, you lose the use of the JiffyDOS key on F1?

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Offline airship

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Re: 128 Function ROM
« Reply #26 on: February 18, 2009, 08:43 AM »
So, in other words, with the 128 Function ROM, you lose the use of the JiffyDOS key on F1?
You've got two ROMs fighting for control of the same key - apparently the function ROM wins over the Kernal ROM.
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Offline megabit

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Re: 128 Function ROM
« Reply #27 on: February 18, 2009, 12:04 PM »

Quote
In addition to those already listed in the 32K version?  If so, then yes!

OK, I can do that. The same programs as the 16k, plus the three 32k ROM programs.


Quote
What is the pricing for the other high-capacity EPROMs - 27020, 27040, 27080?


Right now the pricing for all four EPROMs are the same, $5.00 USD.
I can buy the EPROMs for just under $5.00 each. If my cost goes up, then I will have to pass on the increase.


Quote
So, in other words, with the 128 Function ROM, you lose the use of the JiffyDOS key on F1?

Quote
You've got two ROMs fighting for control of the same key - apparently the function ROM wins over the Kernal ROM.

Offline RobertB

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Re: 128 Function ROM
« Reply #28 on: February 18, 2009, 12:27 PM »
OK, I can do that. The same programs as the 16k, plus the three 32k ROM programs.
     Nice!
Quote
I can buy the EPROMs for just under $5.00 each.

     Thanks for the clarification.
Quote
     Then call me a California Towhee sparrow.  ;)

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Re: 128 Function ROM
« Reply #29 on: February 19, 2009, 12:37 PM »
Dan,

You might want to check these guys out for a source of EEPROMS:

http://www.arcadecomponents.com/memory.html

I have had very good luck with them.

BTW, I have a PC-powered burner; i don't know if your manual will cover these, but i can sure help with testing and docs if you are. 

I could even stitch-up some of the most common combinations and post them up here(?) if it would help.

got128

Offline Andrew Wiskow

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Re: 128 Function ROM
« Reply #30 on: February 19, 2009, 06:41 PM »
You've got two ROMs fighting for control of the same key - apparently the function ROM wins over the Kernal ROM.

The same thing happens with the Servant ROM installed on a JiffyDOS C128.  But it's not really that hard to type "@$" and press return, so it doesn't really bother me too much.  :)

Offline SmallCleverDinosaur

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Re: 128 Function ROM
« Reply #31 on: February 19, 2009, 07:06 PM »
Maybe we should hack Jiffydos so that it places its "@$" on another F-key? But then again, I wouldn't want to risk getting Maurice all over me for distributing Jiffydos ;)
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Offline airship

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Re: 128 Function ROM
« Reply #32 on: February 20, 2009, 01:46 AM »
JiffyDOS no longer exists.

CMD products no longer exist.

They are dead to the CBM community.

Maurice and all of 'his' products are hereby officially shunned.
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Offline megabit

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Re: 128 Function ROM
« Reply #33 on: February 20, 2009, 02:19 AM »
Quote
JiffyDOS no longer exists.

CMD products no longer exist.

They are dead to the CBM community.

Maurice and all of 'his' products are hereby officially shunned.

I'll go alone with that. I don't use Jiffydos anyway.

Dan...

Offline RobertB

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Re: 128 Function ROM
« Reply #34 on: February 20, 2009, 03:13 AM »
Maybe we should hack Jiffydos so that it places its "@$" on another F-key?
     Well, there is always PiffyDOS.  :)

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Offline RobertB

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Re: 128 Function ROM
« Reply #35 on: February 20, 2009, 03:28 AM »
Well, there is always PiffyDOS.  :)
     Oops, I forgot about S-JiffyDOS.

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« Last Edit: February 20, 2009, 03:30 AM by RobertB »

timofonic

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Re: 128 Function ROM
« Reply #36 on: February 20, 2009, 08:51 AM »
I'm interested. What about a version using flash ram?

Offline megabit

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Re: 128 Function ROM
« Reply #37 on: February 20, 2009, 09:58 AM »

Quote
What about a version using flash ram?

I'll be on the lake fishing in April, I'll let you work on that one.

Dan...

timofonic

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Re: 128 Function ROM
« Reply #38 on: February 20, 2009, 05:03 PM »

Quote
What about a version using flash ram?

I'll be on the lake fishing in April, I'll let you work on that one.

Dan...

Sorry, it was just a suggestion.

Offline RobertB

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Re: 128 Function ROM
« Reply #39 on: February 25, 2009, 04:46 PM »
The same programs as the 16k, plus the three 32k ROM programs.

Right now the pricing for all four EPROMs are the same, $5.00 USD.
     Dan, I'd like to place a pre-order for three of the Function ROMs -- all with 27080 EPROMs and with the same programs as the 16K plus all the 32K ROM programs.

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« Last Edit: February 25, 2009, 04:52 PM by RobertB »

Offline megabit

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Re: 128 Function ROM
« Reply #40 on: February 26, 2009, 12:27 AM »
Quote
Dan, I'd like to place a pre-order for three of the Function ROMs -- all with 27080 EPROMs and with the same programs as the 16K plus all the 32K ROM programs.

Great! I'll let you know when they're ready.

Dan...

Offline megabit

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Re: 128 Function ROM
« Reply #41 on: February 26, 2009, 12:44 AM »
Quote
Quote
What about a version using flash ram?


I'll be on the lake fishing in April, I'll let you work on that one.

Dan...



Sorry, it was just a suggestion.

Offline RobertB

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Re: 128 Function ROM
« Reply #42 on: March 01, 2009, 05:49 PM »
Each is the same price: $15 PPD in the US.
     Postage Paid in the U.S. is no longer the case.  Dan Newbury says shipping and handling are *not* included.

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Offline megabit

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Re: 128 Function ROM
« Reply #43 on: March 01, 2009, 07:42 PM »

Quote
Each is the same price: $15 PPD in the US.

     Postage Paid in the U.S. is no longer the case.  Dan Newbury says shipping and handling are *not* included.

I'm sorry, I didn't catch that in airships review. Shipping and handling is separate.

Here is the pricing:

Adapter without EPROM $15.00 USD

Adapter with EPROM $20.00 USD

Shipping and handling for 1ea. Adapter/EPROM/CD:

USA is $2.50
Canada is $3.00
Europe is about $5.00

If you want more than one, then it will cost more to ship.

Dan...

Offline airship

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Re: 128 Function ROM
« Reply #44 on: March 04, 2009, 02:23 AM »
Dan, make sure the guy at Commodore Free knows the correct pricing before he goes to press.
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Offline megabit

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Re: 128 Function ROM
« Reply #45 on: March 04, 2009, 03:58 AM »

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Dan, make sure the guy at Commodore Free knows the correct pricing before he goes to press.

Thanks, sent an email, hope he replies.

Dan...

Offline RobertB

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Re: 128 Function ROM
« Reply #46 on: March 10, 2009, 02:35 AM »
     At yesterday's SCCAN meeting, we plugged in a Megabit 128 ROM adapter (32K version) into Joe M.'s flat C128 and gave the adapter its first tests.  Here are the notes --

             1. The 128 ROM adapter board is fairly large and at first could not fit with the JiffyDOS 128
                 Kernal board plus riser which is to the side.  The JD 128 Kernal board plus riser must be
                 removed.  Then the 128 ROM adapter can be easily inserted.  The JD 128 Kernal is then
                 replaced.  With a regular CBM kernal ROM in place, a 128 ROM adapter board would fit
                 more easily.
              2. The wire which leads from the C128 ROM adapter to pin 12 of U36 is stiff (hard to lay
                  flat against the motherboard), though strong and good-looking.
              3. No problem engaging the menu with the F1 key.
              4. VizaWrite would sometimes crash (break) on start-up, necessitating a system power
                  down and power up.
              5. Pushing the C128's reset switch does not clear the 128 ROM adapter.  A complete
                  cold start would.
              6. A surprise... the ZED 128 text editor is included.  Another surprise... ZED 128
                  initializes correctly from the 128 ROM adapter, but when a user tries to type more
                  than one character into the program, the whole program freezes up.
              7. No problem with initializing Maverick's FileCopy or Single Drive Copy modules.  The
                  Maverick other modules have not been tested.

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Offline SmallCleverDinosaur

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Re: 128 Function ROM
« Reply #47 on: March 10, 2009, 06:44 AM »
If Maurice Randall is doing a great job pissing everone off (pardon my French), Mr Dan Newbury does the completely opposite thing :)

I received my internal adapter today, only 10 days after I sent the money through PayPal. That time includes packaging of the adapter itself, a very thorough installation instruction and a CD-ROM on which he has printed his own label. Very professional. And then shipping it to Sweden, on the other side of the World. Impressive!

I can't wait to test this device.

If you will ever buy something from Dan, you can do it with a 100% confidence :)
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Offline megabit

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Re: 128 Function ROM
« Reply #48 on: March 12, 2009, 02:11 AM »
Quote
1. The 128 ROM adapter board is fairly large and at first could not fit with the JiffyDOS 128 Kernal board plus riser which is to the side. The JD 128 Kernal board plus riser must be removed. Then the 128 ROM adapter can be easily inserted. The JD 128 Kernal is then replaced. With a regular CBM Kernal ROM in place, a 128 ROM adapter board would fit more easily.

I did some sanding on the right side of the PCB, as much as I dared. But it does not help. The Jiffydos adapter sits up high enough that it will sit over the right side of the Internal ROM adapter PCB. But the edge of the Jiffydos adapter sits against the right edge of the Internal EPROM. It would be prudent to put a strip of insulating tape alone the edge of the Jiffydos adapter to prevent shorting.

Quote
2. The wire which leads from the C128 ROM adapter to pin 12 of U36 is stiff (hard to lay flat against the motherboard), though strong and good-looking.

The wire used is a military grade shielded single conductor cable. The shield is to prevent any stray signals from triggering the page switching circuit.

Quote
4. VizaWrite would sometimes crash (break) on start-up, necessitating a system power down and power up.
Quote
5. Pushing the C128's reset switch does not clear the 128 ROM adapter. A complete cold start would.

There are five programs in the Internal EPROM that require a power down and power up. They are: VizaWrite, VizaStar, Basic 8, Servant and KeyDos. The reason is that the Internal ROM is not set to page 0 when you push the reset button and the F1 function key will not be programmed. During a power up, there is a hardware circuit that assures page 0 will come up every time.
There are two ways to fix the problem.
1. Add another wire from the adapter to the system reset line
2. Add a switch to page 0 routine somewhere in the reset routine in the Kernal.

All the other programs will default to page 0 when you exit the program by pushing the reset button.

Quote
6. A surprise... the ZED 128 text editor is included. Another surprise... ZED 128 initializes correctly from the 128 ROM adapter, but when a user tries to type more than one character into the program, the whole program freezes up.
« Last Edit: March 12, 2009, 03:02 AM by megabit »

Offline RobertB

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Re: 128 Function ROM
« Reply #49 on: March 12, 2009, 03:31 AM »
It would be prudent to put a strip of insulating tape alone the edge of the Jiffydos adapter to prevent shorting.
     Thanks for the advice.
Quote
The wire used is a military grade shielded single conductor cable. The shield is to prevent any stray signals from triggering the page switching circuit.
     Ooo, military grade... very nice.  Joe M. of SCCAN wanted to route the wire between the chips on the board (just as he had done for the JiffyDOS wires), but because of the stiffness of the wire, it had to be held down by electrical tape.  It was slightly annoying for him, but it was no big deal for me.
Quote
That (Vizawrite) break out may be the Jiffydos Kernal. My stock 128 does not do that, well, semi-stock 128.
     Ah, we tried Vizawrite with and without JiffyDOS on, but it still would sometimes break.
Quote
There are five programs in the Internal EPROM that require a power down and power up. They are: VizaWrite, VizaStar, Basic 8, Servant and KeyDos. The reason is that the Internal ROM is not set to page 0 when you push the reset button and the F1 function key will not be programmed. During a power up, there is a hardware circuit that assures page 0 will come up every time.
There are two ways to fix the problem.
1. Add another wire from the adapter to the system reset line
2. Add a switch to page 0 routine somewhere in the reset routine in the Kernal.
     It sounds like Option 1 would be the way to go.  Where on the adapter would you solder that reset wire?
Quote
When ZED is selected from the menu, the loader routine will transfer the program from ROM to RAM in the proper location, then jump to start of the program. That part works well, but use another key after start up, it will crash. The program expects the pre-configuration registers to be at their default values.
So, restoring the register values before program startup fixes the problem.

Robert, if you will send me your EPROMs, I will re-program them...
     That is very kind of you.  After this Sunday's FCUG meeting, I will repackage the items and send them back to you.

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