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...
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)...
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...
Posted on February 27, 2012 at 22:14 My SDIO clock won't divide(stuck at 48mHz) and the data lines are stuck high. I've fiddle with every setting and checked the PLL several times. Can anyone spot my mistake. Thank you. Using STM32F407 ui...
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...
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...
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...
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...
Posted on November 16, 2011 at 21:44Hello, I want conect a MMC/SD-Card to the SDIO interface with the configuration for ''SDIO_BusWide_1b''. (STM32F207) I have never found a demonstration how I must connect the wire and witch wire I must use. Now, I...
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...