AnsweredAssumed Answered

USB MSC low transfer speed

Question asked by JasonP on Jul 24, 2014
Latest reply on May 19, 2016 by FTITI.Walid
Hi All,
Using Cube F4 and USB MSC drivers from: "STM32Cube_FW_F4_V1.3.0\Projects\STM324xG_EVAL\Applications\USB_Device\MSC_Standalone".
This works well, but has a transfer speed of only ~3MB/s.
In comparison, using SD HAL drivers without USB I can obtain up to 20MB/s read and 15MB/s write depending on the type of SD card and clock settings.

Has anyone tried to optimise the USB MSC drivers as 3MB/s seems quite slow?