lpcware

LPC1343 - Does fixed EP size result in max xfer of 64KB/s?

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by petervk on Wed Aug 10 01:08:54 MST 2011
Hi all,

I'm developing an app that sends data from the PC->LPC1343, and I need to do this "fast" (~500KB/s would be fine).  The (theoretical) max xfer rate of interrupt xfers are 64KB/s, so I've moved to bulk to get more speed, however it seems as the bulk endpoints have a fixed buffer size of 64B. 

Does this mean the best we can do is 64KB/s from host->LPC?  I guess an alternative is to use an isochronous EP and do my own error checking/retry mechanism but would rather not.

Any help or clarification on this issue would be appreciated.

Thanks,
Peter

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