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Using DMA with hal_SD and FATFS

Question asked by Ahmed Emad el-deen on Apr 18, 2017
Latest reply on Apr 20, 2017 by Ahmed Emad el-deen

Hi,

 

I'm trying to develop application using STM32F205 to transfer files between SD card and Flash Memory, I'm using CubeMX and FATFS API, The problem is the data rate is about 0.55 MB/s when copying from SD card to flash memory and about  although I'm using USB in full speed mode and maximum CLK for SDIO. So I'm trying to use DMA to speed up the data transfer rate but it doesn't work properly.
Can any one help me to identify right procedures to configure DMA working with FATFS ?

 

Thanks.  

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