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Slow transfer rate USB-HS MSC

Question asked by JasonP on Jul 17, 2015
Latest reply on Jul 21, 2015 by JasonP
Hi All,

I have created a project that hooks USB-HS MSC via the SDIO interface on the STM3240G devkit, I have used just the standard (unmodified) libraries. I am using cubemx v4.9.0 and F4 libraries v1.7.0

The transfer rate seems extremely low at approx 180kB/s. I am using the USB2.0 interface on the kit. Nothing I do affects the transfer speed.

Has anyone got any ideas why the xfer rate would be so low?

Cheers
Jason

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