superposition of a square wave over a sine wave

[Shiva]

Hi all,

I am new to VHDL programming. My task is to generate a high frequency
square wave(500 Hz) super positioned over a low frequency sine wave(5
Hz). how can this be achieved in VHDL. I know how to generate both
these waves separately, but i dunno how to generate them together and
superposition them. i would be thankful if someone could help me in
this task. even your valuable ideas will be quite useful for me.

thanks

 

[Jonathan Bromley]

On Fri, 30 Jan 2009 12:43:32 -0800 (PST), Shiva <chibi.sub@gmail.com>
wrote:

Hi all,

I am new to VHDL programming. My task is to generate a high frequency
square wave(500 Hz) super positioned over a low frequency sine wave(5
Hz). how can this be achieved in VHDL. I know how to generate both
these waves separately, but i dunno how to generate them together and
superposition them. i would be thankful if someone could help me in
this task. even your valuable ideas will be quite useful for me.

Is there any reason why you cannot generate the
two waveforms and add them before sending the
digitized data to your DAC?
--
Jonathan Bromley, Consultant

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The contents of this message may contain personal views which
are not the views of Doulos Ltd., unless specifically stated.

 

[Chris Maryan]

On Jan 30, 3:43 pm, Shiva <chibi....@gmail.com> wrote:

Hi all,

I am new to VHDL programming. My task is to generate a high frequency
square wave(500 Hz) super positioned over a low frequency sine wave(5
Hz). how can this be achieved in VHDL. I know how to generate both
these waves separately, but i dunno how to generate them together and
superposition them. i would be thankful if someone could help me in
this task. even your valuable ideas will be quite useful for me.

thanks

wave_out <= square + sin;