Changing the phase of the signal

[Benvalet]

Dear,

I am generating a voltage signal by simply adding one to the digital values until a maximum desired voltage is reached.

I however have one question. How can I obtain the phase of the signal and secondly what can I do to change the phase of the signal generated.

I have attached my code below. Any suggestions will be highly appreciated.

Thanks.

Best Regards,

Benvalet