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[OTG + Cube] Low Speed Device settings

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

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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?

 

JW

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