Indeed. That NCR chip has a theoretical data limit of 1.5MB/s, so the real top speed is around 1.2MB/s.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:
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WANTED: Short 50 pin SCSI ribbon cable
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stephen_usher
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Re: WANTED: Short 50 pin SCSI ribbon cable
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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Steve
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Re: WANTED: Short 50 pin SCSI ribbon cable
Check out what my Falcon managed with RaSCSI, does it have a different chip to TT?
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stephen_usher
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Re: WANTED: Short 50 pin SCSI ribbon cable
I don't know but the hardware specification for the NCR5380 says 1.5MB/s.
See: https://cdn.hackaday.io/files/189748117 ... _May85.pdf
See: https://cdn.hackaday.io/files/189748117 ... _May85.pdf
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.
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mrbombermillzy
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Re: WANTED: Short 50 pin SCSI ribbon cable
Maybe surprisingly, no. It uses the same NCR5380.Steve wrote: 18 Nov 2021 18:34 Check out what my Falcon managed with RaSCSI, does it have a different chip to TT?
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 ?
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Steve
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Re: WANTED: Short 50 pin SCSI ribbon cable
@mrbombermillzy what do you mean, I haven't solved my problem yet :)
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