[comp.periphs.scsi] DMA problems with Epson Equity II & IdeAssociates T60

lance@richsun.reuter.com (Lance Hall) (05/02/90)

My father purchased an Epson Equity II (IBM PC/XT compatible) about 2
years ago on my recommendation. All has been fine until I tried to
install an IdeAssociates T60 tape unit. This unit consists of a WangTec 
QIC-60 60MB cartridge tape drive with QIC-36 interface, an Emulex MT-02
QIC-36 to SASI/SCSI standalone controller and a 8-bit SASI host adapter 
of IdeAssociates' manufacture. I have tested this unit in a real IBM PC
and in a real IBM PC/AT without any problems. The problems occur
whenever the software seems to be expecting DMA reads from the host
adapter but gets no data. I have tried all combinations of the host 
adapter configuration and have tried it also in a minimal hardware/
software setup with no success. IdeAssociates and Epson have been no
help.

Does anyone have any further ideas? Does anyone have any specific
experience with these units?

I would prefer E-mail and thanks in advance.