I don't know what happens if you plug one of my EPROM emus 1 pin off in a 42 pin socket... it might survive or kill one of the buffers, I'm not sure. Best not to try
Stuff and Things.
Re: Stuff and Things.
- rubber_jonnie
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Re: Stuff and Things.
Yep, I will be double checking and making damn sure it get's plugged in the right way round and into the correct pins!!
I will let you know, the mobo is currently in our airing cupboard drying out, so can't do anything until later.
EDIT: Orientation confirmed 100%
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: Stuff and Things.
Do you have a tl866 ii ? The adapter kit should have the 40 to 42 pin adapter.
Tom
Tom
- rubber_jonnie
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Re: Stuff and Things.
I do have a TL866 II Pro, but don't think I have a 42-40 pin adapter, but I'm sure I can either make or buy one If I need to. I will try @cmorley's emulator if my ROM still doesn't work, but I presume I could use the 40 pin 27C400's to replace the ROM if it is bad.
Any suggestions welcome!
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: Stuff and Things.
@rubber_jonnie
Ebay item 183888405810 from poland
Tom
Ebay item 183888405810 from poland
Tom
- rubber_jonnie
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Re: Stuff and Things.
@Tomswork thanks
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
- rubber_jonnie
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Re: Stuff and Things.
Ok, so on the off chance I have kille the ROM in my Mac Classic, I have an adaptor for my TL866 Pro on the way so I can burn a new one, plus before that I will likely try going down the route of trying the ROM emulator from Mr Morley.
I also ran into an interesting feature, in that I thought I'd found a short in a little 8 pin voltage regulator, but it turned out to be a blind alley.
First you have to ask the question "When is GND positive?"
Answer is simple when you get down to a bit of research - When the voltage is negative. Turns out the data sheet for the regulator even shows it in an example configuration. The polarised capacitor has + connected to GND and - connected to -5v and the schematic for the Mac shows exactly the same configuration.
It took a little research, but nice to know that it isn't a short. Better keep digging I suppose!
I also ran into an interesting feature, in that I thought I'd found a short in a little 8 pin voltage regulator, but it turned out to be a blind alley.
First you have to ask the question "When is GND positive?"
Answer is simple when you get down to a bit of research - When the voltage is negative. Turns out the data sheet for the regulator even shows it in an example configuration. The polarised capacitor has + connected to GND and - connected to -5v and the schematic for the Mac shows exactly the same configuration.
It took a little research, but nice to know that it isn't a short. Better keep digging I suppose!
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: Stuff and Things.
It's all relativerubber_jonnie wrote: ↑Fri Jul 31, 2020 10:05 pm First you have to ask the question "When is GND positive?"
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
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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.
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.
- rubber_jonnie
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Re: Stuff and Things.
@exxos Indeed it is:
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
Re: Stuff and Things.
When I used to have to design circuits with ECL logic (especially when interfacing with TTL/CMOS logic) it was a nightmare working out what signals were active (and what polarity that was)...no chance of the logic analyser sorting it out, so we had to rely on a 'scope!
At least the majority of modern electronics (and I'm generously including the ST and Amigas in that category!) don't have that pesky-5.2v supply to confuse things further!
Even just using PECL made a world of difference...
At least the majority of modern electronics (and I'm generously including the ST and Amigas in that category!) don't have that pesky-5.2v supply to confuse things further!
Even just using PECL made a world of difference...