USB MSC low transfer speed

[jasonp4113]

Posted on July 24, 2014 at 01:39

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?RegsJason

[Walid FTITI_O]

Posted on May 19, 2016 at 13:58

Hi JasonP,

Refer to this [DEAD LINK /public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/USB%20MSC%20device%20low%20transfer%20rate%20-%20STM32F7&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=35]thread -Hannibal-