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R
Rdazx.1
Visitor II
August 14, 2020
Question

SDMMC USB_Device MSC sd card using DMA or Cache is not working,is it a Bug???

  • August 14, 2020
  • 1 reply
  • 954 views

project: USB_Device MSC using sd card

stm32h743,cubemx5.6.1,HAL Driver version 1.8.0

1 only using BSP_SD_ReadBlocks() the project is working,but is to slow

2 using BSP_SD_ReadBlocks_DMA() is not working ,can not enter SDMMC interrupt

3 open Dcache is not working

I have took cahe and anlign and AXI RAM into consideration,it still not working.

Is it a bug??? Please help!!!

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    1 reply

    Y
    YKORO.1
    Visitor II
    March 24, 2021

    Did you finish this project successfully? What read/write speeds did you take?

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