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[OTG + Cube] Low Speed Device settings

Question asked by waclawek.jan on Aug 28, 2017
Branched from an earlier discussion



Both the 'F4 and 'L4 RMs clearly state that the USB modules are not capable of Low-Speed Device (underpinned e.g. by DSTS.ENUMSPD not having a documented setting for Low Speed).


Why is it then that both CubeF4 and CubeL4, in USB_ActivateSetup(), DSTS.ENUMSPD is tested for DSTS_ENUMSPD_LS_PHY_6MHZ and DIEPCTL0.MPSIZ is accordingly set?