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Syntax:    

    Tone (Frequency, Duration)

Explanation:

This command will produce the specified tone for the specified duration. Frequency is measured in Hz, and Duration is in 10 ms units.

Please note that this command does not produce the exact frequency specified. While it is accurate enough for error beeps and small pieces of monophonic music, it should not be used for anything that requires a highly precise frequency.

Example:

    'Sample program to produce a constant A note (440 Hz)

    'on PORTB bit 1.

    #chip 16F877A, 20

    #mem 368

    #define SoundOut PORTB.1

    dir SoundOut OUT

    do

     Tone 440, 1000

    loop

For more help, see:

Relevant Constants

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