SDIO Multiple Write with STM32F207

[michaelh]

Posted on March 19, 2012 at 16:21

When 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 using the SDIO functions it seems that the DPSM requires a data length to be set before a write action can occur. Is there any way around this? For example, could I set this to the maximum (512) then cancel/disable the action once the data write is finished?

Thanks in advance.

#stm32-sdio