exxos's Atari, Amiga & retro forum

mrbombermillzy wrote: 18 Nov 2021 14:55 Of course. Its not a problem at all really. I dont expect the TT needs any kind of ultra/wide/fast/U320 bandwith anyway. :lol:

Indeed. That NCR chip has a theoretical data limit of 1.5MB/s, so the real top speed is around 1.2MB/s.

Check out what my Falcon managed with RaSCSI, does it have a different chip to TT?

I don't know but the hardware specification for the NCR5380 says 1.5MB/s.

See: https://cdn.hackaday.io/files/189748117 ... _May85.pdf

Steve wrote: 18 Nov 2021 18:34 Check out what my Falcon managed with RaSCSI, does it have a different chip to TT?

Maybe surprisingly, no. It uses the same NCR5380.

Which begs the question, what is the difference between SCSI and the later SCSI 2 standard that the Falcon uses?

Is it just the form factor, or was the command set changed, in which case, how was the NCR5380 to know the SCSI 2 command set?!

This chip was made in 1986, SCSI 2 wasnt introduced until ~1990.

Anyhow, did you get the TT SCSI drives working @Steve ?

@mrbombermillzy what do you mean, I haven't solved my problem yet :)