Hello,
I am trying to bring up the devices on the STM32F4 Discoveryboard. The CS43L22 is still giving headaches. I query the I2C Bus by sending out address
2,4, ... 0xfe and if I get an ACK I declare the device available. I have done this on several boards before. With the CS43L22 on the STM32F4 Discoveryboard even so I can verify the waveforms with an Logic Analyser and all unrelated pins are set to safe level, there is no reaction from the device.Is there anything special I have to observe with the CS43L22?
Thanks