Dandy wrote:
what's so strange with people having the need for e.g. USB2.0 and want to have it in their Miggy?
Nothing, it's just USB is evil. It was created for CPU rich systems with OS safe applications. The Amiga is not such a system. USB is just a way to get data into the Amiga, and there are many cheaper ways that dont need USB stacks and class drivers and OS patches etc. Do you really think that a USB HID keyboard is going to work in all demos amd games where they access low level hardware in different ways?
Dandy wrote:
alexh wrote:
FYI USB2.0 on the Amiga is very slow.
That is your own, subjective opinion and is in contradiction with my experiences.
I am glad to hear that you dont find your USB slow, but the speed of Amiga USB is not up for debate, it's a FACT.
USB on PC = 480Mbit/s
USB on Amiga = less than 8Mbit/s
That is sloooow.
If you've not noticed it, then it must be due to the size of the transfers you are performing. Try timing something like 4Gig of data (A DVD of ADF files perhaps). In the time it took for a USB copy you could have burned a DVD-RW, copied it using the DVD-drive on your Amiga, made a cup of tea and a sandwich, read the paper, perhaps even gone round to the corner shop for some milk ;-)
All that said, Deneb, the upcoming Zorro III based USB host from E3B is set to reduce the speed gap to the PC and push Amiga USB into the lead over a DVD-RW. The Zorro III DMA will give speeds around 96Mbit/sec which is cool, faster than all Amiga IDE controllers and most Amiga SCSI cards.
Of course one can have it cheaper on other platforms. But then - on the other hand - you are missing the fun of doing it with an 14 year old Amiga...
That's not what I meant. Instead of USB for HID devices you use a PS/2 mouse/keyboard adapter such as a COCOLINO and Lyra etc. Because they pass data to the Amiga using standard ports, they work with all software and have zero CPU overhead.
Instead of using USB for Mass Storage you use an external SCSI enclosure. They are cheap, readily available second hand from the PC market. Because they are SCSI (with the right Amiga SCSI card) there is little or no CPU load. With most Amiga SCSI cards you'll get about 2x USB performance. As much as 20x more if you have a CSPPC/CSMKIII scsi controller.
