ST-IDE-ROM Dev Board v1 - BETA Testers

Related information and WIP etc
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PhilC
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by PhilC »

My order has arrived today.

Is there a BOM available yet? I've probably got it all but the CPLD socket I think.
If it ain't broke, test it to Destruction.
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PaulJ
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by PaulJ »

PhilC wrote: 17 Mar 2020 20:46 My order has arrived today.

Is there a BOM available yet? I've probably got it all but the CPLD socket I think.
https://www.exxosforum.co.uk/forum/viewt ... 581#p34675
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by PhilC »

Thanks @PaulJ
If it ain't broke, test it to Destruction.
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rubber_jonnie
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by rubber_jonnie »

Hoping mine will be waiting for me when I get home tomorrow, then I can get the parts ordered, though I'm confident I will already have some.
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
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by rubber_jonnie »

Got my boards, here when I arrived home earlier. Got my gates for the DMA fix too, so something projects during periods of social distancing.
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...
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rubber_jonnie
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by rubber_jonnie »

@exxos I'm just ordering parts I'm missing for my V1.1 ide boards, and I notice the resistor networks (RN1 & RN2) are 68R on the V1.1, whereas they were 100R on the V1.0.

I have a couple of spares left from last time I was intending to use, so I wanted to check if the value had changed before I went ahead and ordered the 68R ones as per the V1.1 BOM.

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...
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exxos
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by exxos »

It doesn't matter much. Though I am going with 100R...
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by rubber_jonnie »

@exxos Cool, just need to get them for the 2nd board, though I do have a load of 100R resistors so that's also an option.
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...
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by exxos »

rubber_jonnie wrote: 21 Mar 2020 17:46 @exxos Cool, just need to get them for the 2nd board, though I do have a load of 100R resistors so that's also an option.
I did put 68R in my board, but when I worked out the thermals of the 0805 on a short circuit, they were over-spec and would likely die. So 100R is about as low as it could go anyway. 220R may work as well, but not checked the signals on those.
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rubber_jonnie
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Re: ST-IDE-ROM Dev Board v1 - BETA Testers

Post by rubber_jonnie »

@exxos mine will be socketed, so I can replace if necessary. The 100R arrays seem to work fine in my beta boards.
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...

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