4xtx
Member
The expansion chassis does not support any DMA mode operations which is required for hard disk operations such as the ones XTIDE would use.
As per my note above I believe it has to do with the maturity of DOS at the time of the unit being created.
Sharp wrote some propietary routines into their version of 2x to support the hard disk.
Someone with the right know-how might be able to reverse engineer those changes and see what was going on - and perhaps adapt this to an XTIDE, but I don't believe this is a realistic outcome.
I have the PC-7100 version which unfortunately had its hard card and socket removed :-(
I'd dearly love to get some sort of hard disk working on it but it seems impossible.
Serial/Printer connected devices are the only hope and even then its extremely limited (I'm using nibble for a PCMCIA parallel port card for example)
As per my note above I believe it has to do with the maturity of DOS at the time of the unit being created.
Sharp wrote some propietary routines into their version of 2x to support the hard disk.
Someone with the right know-how might be able to reverse engineer those changes and see what was going on - and perhaps adapt this to an XTIDE, but I don't believe this is a realistic outcome.
I have the PC-7100 version which unfortunately had its hard card and socket removed :-(
I'd dearly love to get some sort of hard disk working on it but it seems impossible.
Serial/Printer connected devices are the only hope and even then its extremely limited (I'm using nibble for a PCMCIA parallel port card for example)