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How to improve USB host throughput?
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How to improve USB host throughput?

Preeth posted on 27 Dec 2010 10:59 PM PST
Member
2 Forum Posts

In USB host mode, USB DMA is configured in AutoRequest mode.

However, there are still a lot of NAK behind the DATA phase of a BULKIN and in front of the ACK and the next BULKIN.

How to make USB host to output ACK right after the DATA phase ?




Re: How to improve USB host throughput?

aasi posted on 25 Feb 2011 12:59 AM PST
Cypress Employee
1090 Forum Posts

Preeth,

What is the device in question. Ideally the host schedules packets based on its buffer availability and hence is expected not to NAK traffic. i.e. host should request packets if and only if it has enough buffer for the response.

Regards,

Anand






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