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Old 04 December 2018, 06:29   #1
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Dataflyer SCSI to IDE+SCSI?

I've noticed some Dataflyer SCSI cards available recently, that have pinouts and labels for adding IDE hardware.

It looks like a very small amount of hardware. Basically 3 chips, a few resistors/capacitors, and some pin headers.

Does anyone know EXACTLY what would be needed to add the IDE feature to these cards?
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Old 04 December 2018, 07:23   #2
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Seems you need to add DTACK PAL, the BUSS PAL must be changed into a SCSI/IDE version, most likely the firmware EPROM needs to be changed. Then the easy part: three 74LS254s + the resistors above them (you can decode them from the pictures on amiga.resource.cx) + the IDE pin header.

The PAL contents need to be found from somewhere, this is probably the difficult part.
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