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FATFS + USB ULPI + Ethernet performance on CortexM7

Question asked by ml.michal on May 29, 2017

Hi everybody,

 

did anybody tested performance with sending some file from USB flash drive with FatFS using USB ULPI to the ethernet LAN ?

what is highest achievable speed ?

i measured roughly 94MBit/s using iperf but it's not an overall performance ...

i tried to receive file but i got some strange errors on USB so the transfer was interrupted after roughly 10kBytes - 20kBytes of file ... :-( 

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