sine wave set_phase not working

Hi
   sine wave set_phase not working, i don't see the wave shift toward to left/right on my osciliscope.

```
            ad9833.set_frequency(currentFreq, 0)
            ad9833.set_phase(currentPhase % 360, 0, rads=False)
            ad9833.select_freq_phase(0, 0)
            ad9833.set_mode('SIN')
```

thanks