On Thu, Nov 3, 2011 at 4:42 PM, <[email protected]> wrote: > MEMs microphone is always going to be pretty crap, couldn't make out > whether it has 2 I2S ports...
There are a total of three SPI peripherals (which can operate in an I2S mode). On the STM32F4DISCOVERY board: SPI1 maps to the MEMS accelerometer; SPI2 maps to the digital MEMS microphone; SPI3 maps to the headphone DAC/amp. > It does USB host, so perhaps a demo could use a USB headset. Yes, it is technically feasible that a USB headset could be used, but there is no driver code to leverage. When one buys a shrink-wrapped USB headset, there is a lot of behind the scenes development to write accompanying drivers (primarily for Windows/MacOS). Ostensibly, it might conform to a documented "USB class", but the devil is in the details. ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
