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Old 10 November 2019, 21:14   #9
mark_k
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Join Date: Aug 2004
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I think the "DMA" pins are likely to be for the drive activity LED; that's why they are labelled - and +. My guess is the + pin connects to the 53C80 DRQ pin.

This page on stone-oakvalley-studios.com has info about various IVS products, and a page with ADF software/driver downloads. Does the ivs_scsi_wb13.adf disk work with your card? I'll download that and have a look at the driver code.

Edit to add: In the devs directory of that disk is IVS_SCSI.driver. Text in that says SCSI 1.3 (14 Aug 1988). You can build a boot ROM image from that .driver file.

Last edited by mark_k; 10 November 2019 at 21:23.
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