AnsweredAssumed Answered

Mic on Discovery

Question asked by sodenberg.kristian on May 1, 2012
Latest reply on May 5, 2012 by fm
I want to simply read the PCM data coming from the microphone(MP45DT02), which is on the stm32f4 discovery board. I configured the I2S2_CK and I2S2_SD pins, the I2S communication, and enabled the SPI_I2S_IT_RXNE interrupt request. In the IRQHandler when i call the SPI_I2S_ReceiveData(SPI2) function, it looks like i always read ZEROS. What's the problem? Is something else is missing?
I read similiar examples, and documents but it didnt help me a lot. Please help me.