This PR adds support of the extended I2S devices of the STM32F4. The extended I2S can act as a slave to provide RX when the main I2S in master mode does TX.
I also remove the audio part of the STM32F4_DISCO accelerometer example, and put it in a separate example.
This PR adds support of the extended I2S devices of the STM32F4. The extended I2S can act as a slave to provide RX when the main I2S in master mode does TX.
I also remove the audio part of the STM32F4_DISCO accelerometer example, and put it in a separate example.