REV 3 - REV 5 - The beginning (ST536)

All about the ST536 030 ST booster.
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exxos
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Re: REV 3 - The beginning

Post by exxos »

Tried the STE again... Same problem..




EDIT:

The only time it boots is when I disable the cache on the board.. but its not very stable.
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Re: REV 3 - The beginning

Post by exxos »

Tried EMUTOS on the STE and that goes into a reset loop after the splash screen. TOS206 always starts resetting just as it gets to desktop. Though its odd it can load stuff off floppy like in the video.

I've played around and no idea what's up with it all. The only possible clue is the diagnostic cartridge says I8 exception error, whatever that means.
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Re: REV 3 - The beginning

Post by Badwolf »

exxos wrote: Thu Apr 29, 2021 11:18 pm I've played around and no idea what's up with it all. The only possible clue is the diagnostic cartridge says I8 exception error, whatever that means.
I can't find any reference to I8 in the STE, or (ST or Falcon, since I was checking) service manual. Maybe a later introduction?

How are you connecting this? Is the onboard CPU removed?

BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
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Re: REV 3 - The beginning

Post by exxos »

Badwolf wrote: Fri Apr 30, 2021 12:35 pm I can't find any reference to I8 in the STE, or (ST or Falcon, since I was checking) service manual. Maybe a later introduction?
I looked through the whole lot, I could not find it either.
Badwolf wrote: Fri Apr 30, 2021 12:35 pm How are you connecting this? Is the onboard CPU removed?
TF536 is on a DIP to PLCC adapter, plugged into the STE CPU socket.


EDIT:

oops..

IMG_6478.JPG
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Capture.PNG
Capture.PNG (104.98 KiB) Viewed 3316 times

Still none the wiser :lol: :roll:
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Re: REV 3 - The beginning

Post by Badwolf »

Ohhhh, E8.

Why didn't you say? ;)
exxos wrote: Fri Apr 30, 2021 12:45 pm Still none the wiser :lol: :roll:
Ditto! :lol:

This is where EmuTOS could be more use again, though. You say it can boot from floppy? We could do you an EmuTOS PRG version with debugging turned on in various modules. If nothing prints on screen (or it vanishes into reset before you can read it), it could be rebuilt to spit out over serial.

ROM even better as then the PC can be directly interpreted, but unless you've any PLCC44 EPROMs, that's not really an option.

BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
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Re: REV 3 - The beginning

Post by exxos »

Badwolf wrote: Fri Apr 30, 2021 2:46 pm This is where EmuTOS could be more use again, though. You say it can boot from floppy? We could do you an EmuTOS PRG version with debugging..
EMUTOS running from ROM resets just the same... but TOS206 and ET run fine on my H4..

I might be able to run ET from the AUTO FOLDER on the floppy.. that seems to work, just can't get to desktop.
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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Re: REV 3 - The beginning

Post by exxos »

I think Roger sent me a debug version of EMUTOS yesterday, though I cannot seem to start from the auto folder has just keeps resetting the again :(
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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Re: REV 3 - The beginning

Post by Badwolf »

exxos wrote: Fri Apr 30, 2021 3:18 pm I think Roger sent me a debug version of EMUTOS yesterday, though I cannot seem to start from the auto folder has just keeps resetting the again :(
We'd need to guess which module to put the debugging output in.

In your ROM version, you said you can see the splash screen. If you hit escape there (to go to the CLI) does it reboot before you get the user prompt?

BW
DFB1 Open source 50MHz 030 and TT-RAM accelerator for the Falcon
DSTB1 Open source 16Mhz 68k and AltRAM accelerator for the ST
Smalliermouse ST-optimised USB mouse adapter based on SmallyMouse2
FrontBench The Frontier: Elite 2 intro as a benchmark
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Re: REV 3 - The beginning

Post by exxos »

ah... :lol:

Go find some more ram and then try running from auto again...

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https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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People should find solutions to problems, not find problems with solutions.
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Re: REV 3 - The beginning

Post by exxos »

Badwolf wrote: Fri Apr 30, 2021 3:23 pm In your ROM version, you said you can see the splash screen. If you hit escape there (to go to the CLI) does it reboot before you get the user prompt?
It pretty much resets after drawing the splash screen.. I don't think I will have chance unless I frantically press escape whole time... Give it a try anyway...
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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