Steve Smith ha scritto:
> Guys:
> During a program I have to periodically make a burst of 455Khz pulses and
> stop when a pin changes state....

Hi Steve,
I did something similar using PWM module, to generate a 1MHz carrier 
modulated @1KHz to create a "small AM transmitter".

Maybe you can do the same, using a suitable Crystal.

Dario
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