STM32f205 + eMMC

[aoleon]

Posted on April 19, 2013 at 17:20

Hello,

I try to interface a STM32f205 to a Toshiba eMMC via 8bit SDIO and DMA.In order to read and write can you please tell me if I am missing something:Read Single block

• Send CMD16 Block length (I receive the correct response)

• Setup SDIO

• Send CMD17 Read single block (I receive the correct response)

• Setup SDIO interrupts

• Start the DMA

• Setup DMA

Write Single block

• Send CMD16 Block length (I receive the correct response)

• Setup SDIO

• Send CMD24 Write single block (I receive the correct response)

• Setup SDIO interrupts

• Setup DMA

• Start the DMA

First I call the function to write and I end up in the SDIO interrupt with the DCRCFAIL flag set. I can't find where the problem comes from. All the initialisation of the memory works. Any ideas?Does anyone have come across an eMMC and willing to share the low level functions?Thanks,Alex

[swieladek]

Posted on September 20, 2016 at 14:04

Hi,

I try the same on stm32f207, but I just did a start. ST demo code supports only SD card interface. Could You share initialization code for eMMC please?