Is there any particular reason that the BF707 EZ-KIT uses a 25MHz oscillator? This seems to make it impossible to generate an I2S friendly bit clock (e.g. 1.536MHz or 1.4112MHz) for the SPORT interfaces.
Using a 25 MHz clock makes it straightforward to operate at the maximum core and system clock frequencies. You can change the crystal oscillator if you need a different frequency. Sorry for the inconvenience.
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