I WANT TO KNOW THE STM32F4 SERIES BOARD HAVING TWO SDIO INTERFACES???ANYONE PLEASE SUGGEST ME......
So why, then, did you title your thread, "STM32F4 with two SDIO" ?
And why did you ask, "I WANT TO KNOW THE STM32F4 SERIES BOARD HAVING TWO SDIO INTERFACES???" ?
And don't you think that the ST documentation would be the place to answer this question?
It has nothing to do with Keil!
Because the discussion evolved when it became apparent the STM32F4 didn't provide for two SDIO/SDMMC interfaces.
Consider card interfaced via SPI