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Alexander Skupov
Alexander Skupov
Visitor II
October 17, 2017
Question

Usb Stm32f746

  • October 17, 2017
  • 1 reply
  • 572 views
Posted on October 17, 2017 at 06:33

Hello

I am using STM32F746-Discovery.

I run USB in high speed mode.

Internal DMA is enable.

But, if I use ICache and DCache my host is't initialization.

Who will tell me what the problem is?

What am I doing wrong?

Alex

    This topic has been closed for replies.

    1 reply

    waclawek.jan
    waclawek.jan
    Super User
    October 17, 2017
    Posted on October 17, 2017 at 10:43

    You shouldn't DMA to/from cached memory. DMA accesses directly the memory. Read the related application notes you find on the 'F7xx product pages.

    JW

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