Lpc2000

Sorry, I forgot to mention it's in the "DDS" folder in the file 
section.


--- In lpc2000@yahoogroups.com, "tkreyche" <tkreyche@w...> wrote:
> 
> After getting a great deal of good advice from the group, here's my 
> small contribution:
> 
> A simple example of how to use the LPC2138 to create a sine wave 
> using direct digital synthesis (DDS).
> 
> It was developed for the Keil LPC2138 board and compiler and puts 
out 
> an audio tone from the DAC using the amplifier on the board. It 
> should work for other boards as well.
> 
> It's amazingly simple to create very nice looking sine waves using 
> DDS on the LPC2138. The waves can easily be frequency modulated or 
> amplitude modulated, and you can create musical chords by combining 
> multiple sine waves.
> 
> I included a couple technical documents that explain the process in 
> detail--as a result there are relatively few comments in the source 
> code.
> 
> Tom Kreyche