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STM32L476G Evaluation:Enabling DMA for USB_OTG_FS MSC to increase throughput

Question asked by HARINATH MADDELA on Apr 28, 2017
Latest reply on Apr 28, 2017 by Clive One

Hello All,


I'm working on STM32L476 Evaluation board as USB Mass Storage device(Full Speed). I'm planning to improve the throughput for file transfer through USB Mass Storage. So i planned to use DMA for transfer and i enabled "Enable internal IP DMA" (present in Parameter Settings of USB_OTG_FS Configuration) option in CubeMX. I haven't observed any difference in the source code generated with option enabled to that of the one that is disabled.


I'm not sure if i'm missing anything here. Does the DMA support exist? If so can any one please guide me to use DMA for USB Mass Storage transfers.