Conflict with Pitch Dark & FastChip //e

12 posts / 0 new
Last post
Offline
Last seen: 1 week 3 days ago
Joined: Jan 22 2023 - 10:16
Posts: 46
Conflict with Pitch Dark & FastChip //e

Hi Apple II fans!

   I often boot my Apple IIe Enhanced in Smartport mode with a micro SD in the Floppy EMU & the Yellowstone Universal disk controller (BigMessOWires) with 4 32mb images using Bitsy Bye - Total Replay, Total Replay II (Instant Replay), etc and Pitch Dark (a collection of all Infocom text adventures) - I love these collections put together by 4am and they all work great EXCEPT for Pitch Dark when my FastChip //e accelerator card by a2heaven is installed.  When I tab over to Pitch Dark the opening menu screen is there for a split second and then it launches randomly into a game or random screens. Anyone have insight as to why all other software seems to work with the FastChip in except Pitch Dark? It's very odd. Thanks!

 

 

Offline
Last seen: 1 week 3 days ago
Joined: Jan 22 2023 - 10:16
Posts: 46
FastChip //e problems continued

  I have everything working great on my Apple IIe Enhanced now (thanks to many of you here on the forums), except my FastChip //e. Current configuration: 

Aux slot - 80 column card

Slot 3 - Uthernet II

Slot 5 - FastChip //e

Slot 6- Yellowstone Universal Disk card

Slot 7 - AllVGAS VGA scaler

 

Everything works perfectly when I don't have the FastChip accelerator in. When I do have it in (and I have tried different slots 4&5) I have strange behavior with some software like PitchDark hdv image of Infocom games in Smartport mode on FloppyEMU. If I leave the FastChip in but disable it in its menu - when I boot I get weird graphics and color distortion on my Bitsy Bye hdv boot image - see above images. I've been assured there should be no conflict between the software and the FastChip because others are using both. So either there's something wrong with my FastChip or my configuration I suppose. Any have ideas - Im not sure where to go from here. Thanks!

 

Offline
Last seen: 1 week 3 days ago
Joined: Jan 22 2023 - 10:16
Posts: 46
Basically I'm getting weird

Basically I'm getting weird glitchy behavior with the FastChip in or in and disabled - which is weird - why would it just being in a slot but disabled cause strange behavior.

Offline
Last seen: 8 hours 44 min ago
Joined: Apr 26 2016 - 08:36
Posts: 509
m0ebiu5 wrote:Basically I'm
m0ebiu5 wrote:

Basically I'm getting weird glitchy behavior with the FastChip in or in and disabled - which is weird - why would it just being in a slot but disabled cause strange behavior.

What do you mean by "disabled"?

 

If all you are doing is dropping it back to 1 MHz then you're not really disabling it, just making it run at 1MHz.  Have you set it to "OFF" in the hardware control panel on bootup?

 

Also, I should note that the FastChip IIe doesn't improve access times on the MicroDrive/Turbo and it will really interfere with most games you play.  Many games rely heavily on CPU timing and cycle counting to maintain their flow and the Fastchip disrupts a lot of that.

The other issue is that the Fastchip is really a WDC65C02S which is not exactly 100% the same as a garden variety 65C02, especially if the software is using weird undocumented opcodes in its software.

 

What I'm trying to say is that for gaming, the FastChip IIe is  generally not a useful modification.

 

 

Offline
Last seen: 1 week 3 days ago
Joined: Jan 22 2023 - 10:16
Posts: 46
I set it to disabled in the

I set it to disabled in the speed settings of its menu - from what I read that turns it off and the regular cpu should be running. Currently I don't have the external cpu control connected because I've been troubleshooting. Mainly I want the FastChip for use with the Uthernet II but I don't love how all these other programs are glitching - why having it turned off still affects my software aka the hdv imaged pictured above makes no sense - also I've been told by others that they have no problem with their FastChip affecting these particular programs - I'm at a loss 

Offline
Last seen: 1 week 3 days ago
Joined: Jan 22 2023 - 10:16
Posts: 46
I thought I could have the

I thought I could have the best of both worlds by just disabling it when not in use (for the Uthernet II) so that it doesn't affect the other software that is conflicting but even with it disabled and installed it still seems to cause problems.

Online
Last seen: 41 min 43 sec ago
Joined: Jun 6 2020 - 10:50
Posts: 323
Complete shot in the dark,

Complete shot in the dark, but if the issues are all graphical in nature, perhaps there is a conflict with the VGA scaler somehow? In your description of the issue, it's not clear if you tried with it out. If not, try removing it and see if the issue persists. 

Offline
Last seen: 1 week 3 days ago
Joined: Jan 22 2023 - 10:16
Posts: 46
I believe I had the problems

I believe I had the problems before I added the VGA scaler - they are both from the same place a2heaven so there shouldn't be a conflict but Im not 100% sure on that. The VGA scaler is a little tricky to remove/add because it has wired jumpers you have to connect to certain pins on ICs.

Offline
Last seen: 8 hours 44 min ago
Joined: Apr 26 2016 - 08:36
Posts: 509
The VGA Scaler can cause

The VGA Scaler can cause other sorts of conflicts because it can disrupt the clock signal.

 

I had a Garret's Workshop 8MB RAM card in the AUX slot that didn't play well well with the VGA Scaler.

The solution was to modify the RAM card to have a buffered clock signal pin to which you can attach to the VGA scaler's clock wire probe.  (GW sent me a replacement no charge - they're a class act)

Perhaps you are experiencing similar effects.

Just disconnect the clock wire - that will disable the VGA scaler - not completely, but this is an experiment.

Then connect the composite port to a monitor and see if you are still glitching - you can connect and disconnect the clock wire without fear of damaging either the computer or the VGA scaler (unless you fat-thumb it onto something stupid like +12V)

 

 

Offline
Last seen: 1 week 3 days ago
Joined: Jan 22 2023 - 10:16
Posts: 46
I have 2 monitors connected

I have 2 monitors connected and working simultaneously - 1 composite LCD from ReactiveMicro and the other is connected to an ASUS monitor through VGA with the AllVGAS scaler. I can try without the scaler and see what happens. Or just forego the FastChip all together. Everything works great without it. Just a bit disappointing that it's not working as well as others seem to not have issues.

Offline
Last seen: 4 hours 43 min ago
Joined: Jun 18 2010 - 13:54
Posts: 617
FWIW - I found issues with

FWIW - I found issues with the FastChip and Uthernet II. Especially when using A2Stream. I would get "WAITING" messages from A2Stream when the FastChip was running. Disabling FastChip would actually cause the program to crash. And removing the FastChip of course made it work just fine. Mentioned all this to Oliver Schmidt to get some insight but he got insulted and of course blamed the problem on the FastChip.

 

Bottom line: even with the FAstChip disabled, it can cause issues with other cards.

Offline
Last seen: 1 week 3 days ago
Joined: Jan 22 2023 - 10:16
Posts: 46
Very interesting and good to

Very interesting and good to know - thank you

Log in or register to post comments