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Author Topic: Accelerator Questions!  (Read 1597 times)

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Offline Piru

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Re: Accelerator Questions!
« on: June 22, 2006, 12:27:38 AM »
@neuroflip
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i think that PCMCIA problems came with memory expansion cards, not with accel cards, i'm right?

You're not. Many early accelerators had this problem aswell.

The problem is caused by using 24bit address space for the fast memory (upto 8MB). Using more than 4MB memory at 0x200000 will overlap the PCMCIA mapping at 0x600000, shutting down card.resource.

Any accelerator that uses 32bit area (>=0x01000000) for the fast memory doesn't have this problem.

Neither DCE Viper 1240 nor P5/DCE Blizzard 1260 have this problem.

@amije
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the first version of scsi squirel had this kind of probs too.

Different problem. Squirrel SCSI is PCMCIA device itself. Due to lame coding the driver takes over the PCMCIA unit until you reboot. You can't unplug the squirrel and use some other PCMCIA device, that is.