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Simple tone generators for lpc

Started by Curt Powell September 21, 2004
Can anyone steer me towards some simple tone generators that can easily be
interfaced to the lpc using gpio (as few pins as possible) or i2c? Nothing
fancy, we need to control frequency and duration (volume will be controlled
manually if at all).



An Engineer's Guide to the LPC2100 Series

--- In , "Curt Powell" <curt.powell@s...>
wrote:
> Can anyone steer me towards some simple tone generators that can
easily be
> interfaced to the lpc using gpio (as few pins as possible) or i2c?
Nothing
> fancy, we need to control frequency and duration (volume will be
controlled
> manually if at all).

Take a look at using a PWM output.