Resolved! Using both I2S and SDIO
I want to play audio on STM32F4 Discovery board. Audio is stored in SD card which connected by SDIO. On discovery board, I see below connections.I2S3_SCK -- PC10 -- (SCLK) CS43L22I2S3_SD -- PC12 -- (SDIN) CS43L22but PC10 & PC12 are also connected to...