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Altera_Forum
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20 years ago

High Speed USB 2.0 Hosting

Hi, We are interested in implementing a High Speed (HS) USB 2.0 host that will be running under uClinux and I would be interested to know if anyone has implemented one in their design. I also ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hi Ken,

Thanks for the information (even if it came in the form of a shamless plug ;-).

Can you tell me what other USB host components (besides the ISP1161A1) are supported with v1.4 release?

We really need a High Speed (HS) USB 2.0 host controller but it would still be helpful if you could provide benchmarks for the Firefly with the USB expansion kit when they become available.

Our current goal is to support a sustained transfer 20 MBytes/sec through a HS USB 2.0 host port. When the HS USB 2.0 host components become readily available, and are supported by a future release of uClinux, is it conceivable that, under the Nios II platform, a sustained 20 MBytes/sec transfer rate could be achieved?

Given the assumptions that there are no transfer bottlenecks in the HS USB 2.0 host component or the associated HS USB 2.0 device (e.g. USB Hard Disk), I'm also trying to determine if uClinux would be the best OS choice for this type of application or if one of the RTOS's are perhaps a better fit (e.g. MicroC/OS-II, Nucleus, etc.). I would appreciate any input you could provide on this subject.

Brad S.