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SDIO Multiple Write with STM32F207

Posted on March 19, 2012 at 16:21When writing to an SD card in SPI mode, you can do a multiple block write without pre-defining the length (i.e. send CMD25, send some data blocks, finish with a stop command). However, to do a multiple block write us...

SDIO SD, Interrupt or DMA required.

Posted on March 09, 2012 at 20:36Hello,I have a question concerning SDIO driver provided by STM for the STM32F407.  Do you have to use interrupts or DMA?  Can you initialize the a SD Card and write data using:SDIO_SendCommand(&SDIO_CmdInitStructure)...

slagment by Associate II
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.Wav playout using STM32F4 via uSDcard

Posted on March 07, 2012 at 08:29I tried wave playout using the normal mode i.e. through Flash memory and the AUDIO_MAL_MODE_NORMAL, this worked fine. However when I try playout via uSDCard I find that the output is very noisy and defnitely corrupt...

akshaya by Associate
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FAT32 problem stm32f205

Posted on November 30, 2011 at 08:45Hi Everybody,i m working on a project that needs data logging. I use FATFs ( Chan-FAT32 ) but i have a problem that described below:( I've formatted the SD card on PC with FAT32 )I try to create a .txt file, and c...

enturk by Associate II
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Anyone know what the SDIOIT bit means?

Posted on December 28, 2011 at 01:25In the STM32F2xx / 4xx SDIO peripheral there's a bit in the status register SDIO_STA called SDIOIT. The description says it's a dynamic bit meaning ''SDIO interrupt received''. Does anyone know what this bit reall...

SD Card on STM32VL-Discovery

Posted on December 13, 2011 at 09:14Hi Has anyone got an SD Card or MMC talking to the Discovery board yet? I can't find much information on the forum. Can anyone, point me in the right direction?Thanks in advanceAmir #sd-card #mmc #stm32-discove...

apatel by Associate II
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SDIO command CRC error on ACMD41

Posted on November 07, 2011 at 22:59When single stepping through the initialization commands for the SDIO card socket (STM3210E) I notice that ACMD41 always returns a command CRC error flag.  The ST example code specifically ignores the CCRC FAIL fl...

Bug for large SD cards in SDIO library code

Posted on June 01, 2011 at 22:33FYI, there's a bug in the SDIO standard peripheral library code when dealing with SD cards greater than 4 GB in size. The problem is the library code uses a parameter called ''address'' or similar in several of its fu...