STE V1.5 32MHz BOOSTER - STATUS

Help & information about the STE V1 booster.
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exxos
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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by exxos » Wed Apr 04, 2018 11:49 pm

New PCBs arrived today...

A quick test to see if it fits this time...

IMG_2380.JPG
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IMG_2381.JPG
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.. and perfect fit 8-) 3rd time's the charm!

Will try and find some time to build it up soon and test.. but as its basically a clone of the V1 booster then it should work OK..
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by rpineau » Thu Apr 05, 2018 1:58 am

Nice.
I wonder if we should do this for the 68020 booster instead of using the expensive PLCC plugs.
Not as nice but a lot cheaper and easier to find (PLCC plug is still better for proto :) ).
Working ones : MegaSTE (68020) / TT030 / Falcon with AB040 & Eclipse / 1040STF
Need testing : Falcon with CT2

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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by exxos » Thu Apr 05, 2018 8:33 am

rpineau wrote:
Thu Apr 05, 2018 1:58 am
I wonder if we should do this for the 68020 booster instead of using the expensive PLCC plugs.
Not as nice but a lot cheaper and easier to find (PLCC plug is still better for proto :) ).
Maybe :) I got some plastic squares cut to "fake" the CPU to hold the adapter in place, its the most expensive part, but still cheaper than a proper adapter. Idea is tested for long time with my MMU 4MB kit, so it works :)
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by ube » Thu Apr 05, 2018 11:47 am

3D printing time! :)
master of the bare pcb

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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by exxos » Thu Apr 05, 2018 6:24 pm

ube wrote:
Thu Apr 05, 2018 11:47 am
3D printing time! :)
Need to be really accurate for this job, so they going to be machined :)
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by rpineau » Fri Apr 06, 2018 2:05 am

May be it's time to build a small CNC out of a broken 3D printer :) and use something like a small stack of acrylic sheet glued together after cutting them to make a fake CPU.
Just thinking out loud here :)
Rodolphe
Working ones : MegaSTE (68020) / TT030 / Falcon with AB040 & Eclipse / 1040STF
Need testing : Falcon with CT2

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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by troed » Fri Apr 06, 2018 7:48 am

rpineau wrote:
Fri Apr 06, 2018 2:05 am
May be it's time to build a small CNC out of a broken 3D printer :) and use something like a small stack of acrylic sheet glued together after cutting them to make a fake CPU.
Just thinking out loud here :)
Rodolphe
A friend of mine has a 3D-printer sized CNC, AFAIK it wasn't very expensive. He's even used it to mill working one layer (could probably do two if careful when aligning) circuits from copper plated boards.

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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by exxos » Mon Apr 09, 2018 4:21 pm

Assembly started :)

So nice not to have one of those evil sockets :twisted:

1.jpg
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2.jpg
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4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by exxos » Mon Apr 09, 2018 6:41 pm

Sometime later...

v15b.jpg
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Seriously not fun to build these!
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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Re: STE V1.5 32MHz BOOSTER - STATUS

Post by exxos » Mon Apr 09, 2018 9:15 pm

So initial tests are a bit complicated :roll: scenes the 8 MHz line needs 150pF otherwise the machine does not even tried to boot..

It was running well until we got to the blitter test and it crashes every time. I spent the past couple of hours trying to figure out why, and I just remove the booster and put the original CPU backing, and the blitter test still crashes. So this motherboard has some strange fault :( I already change the chip twice and now I am doing memory test to see that reveals anything.

So I am currently stuck testing out the booster properly until I can figure out what is wrong with this motherboard :roll:

UPDATE:

Okay it seems there was some bad connection on the ROM board somewhere :roll: as to why it would run perfectly well with all the other tests is beyond me :shrug:

I guess I am discovering new depths of screwyness all the time..
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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