Help: ICE_ICELIB_PIC_TUNER_FREQ

Returns the nearest supported down conversion freq

Function PIC_TUNER_FREQ - Returns the nearest supported down conversion freq

PIC	p	Handle to Device 
double	fcyn	Tuner frequency/nyquist desired 
int	flags	Run-time modifiers
Returns:
double	PIC_TUNER_FREQ	Actual (33bit rounded) frequency

The Harris HSP50016 DDC has a 33 bit phase accumulator resulting in a tuning 
resolution of (input freq)/(2**33).  

The Graychip GC4014/4016 has a 32 bit phase accumulator resulting in a tuning 
resolution of (input freq)/(2**32).  

The Xilinx FPGA Tuner Core has a 32 bit phase accumulator resulting in a tuning 
resolution of (input freq)/(2**32).  

The input frequency is rounded to the nearest legal value.  
This routine returns what PIC_TUNER will actually apply so that 
application code can easily find the actual tuned frequency.