VOGONS

Can an ISA card be installed in a PICMG 1.0 slot?

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First post, by zwrr

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I got an SBC motherboard, model PCISA-C800, with a PICMG 1.0 bus. I now have a backplane that has two PICMG 1.0 slots and four PCI slots.

I want to combine them and also install an ISA sound card. I want to know, since the backplane only has two PICMG slots and no ISA slots, can I install the ISA card in a PICMG slot? Just like an ISA card can be installed in an EISA slot.

The attachment c800.jpg is no longer available
The attachment picmg.jpg is no longer available

SBC1: Cyrix 5x86-120, HS-5x86HVGA, 16MB EDO, GD54M30, SB Pro II, HardMPU-wt
SBC2: VIA C3-800, PCISA-C800, 128MB SDRAM, Savage4 Pro, SB AWE64 Gold
SBC3: Tualatin-S 1.4G, PCI-6872, 256MB SDRAM, FX5200 PCI, Voodoo2 SLI, SB Live

Reply 1 of 1, by wierd_w

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Personally, I'd be more interested in the PC104 header on that SBC.

There are numerous projects out there that can make very effective use of that header, since it is straight up an ISA bus, just in IDC form-- both here, and at VCF.

Here's a thread from VCF with gerbers for a single card ISA slot on it that would bolt right onto that PC104 header.
https://forum.vcfed.org/index.php?threads/che … adapters.77595/

There's also a "universal backplane" project here on Vogons that could be used.
Project "Backwards". A universal backplane for PISA, Allen Bradley, and ISA "half-size" SBCs. (Status: V1.0)

and with some ingenuity, an ISA PC104 backplane exists
https://www.ebay.com/itm/255015529486

and finally-- there's a PC104 soundcard project here on vogons
Open Source PC104 Soundcard

And there is a PC104 version of the PicoGUS
https://github.com/UzixLS/picogus104

The picogus especially is interesting, as it is nice and small-- your SBC could go into your backplane in the furthest PICMG slot. The "space" that the second slot occupies would be taken up by the picogus, and passive audio passthru's to a card edge bracket could be provided to get rear panel audio.

The picogus simulates the full function of a Gravis Ultrasound, which was a soundblaster compatible audio solution, combined with a wavetable synthesizer that can accept user-uploaded samples.

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