Trond Danielsen wrote: > 2007/6/28, Johnathan Corgan <[EMAIL PROTECTED]>: > > Thus, for DC, the phase increment value is zero, for 0.0149 Hz, it > is 1, >> for 0.0298 Hz, it is 2, all the way up to 32 MHz, where it is pow(2, >> 31). You can also tune negative frequencies, where -1 creates -0.0149 >> Hz, etc. > > There is one more thing that I just can not figure out. The largest > angular rotation that can be performed by the CORDIC is +/- pi/2, > which means that is takes four cycles to rotate the vector all the way > around. How come the largest frequency that can be generated be 32 > MHz.
If you look in the cordic.v file you will see that the actual CORDIC is preceded by some logic which rotates by 0, 90, 180, or 270 degrees. Matt _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
