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<head><title>FREQOUT Example</title>
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<h1>FREQOUT Example</h1>
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<p style="text-align: right;">Syntax: <a href="../Commands/FREQOUT.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">FREQOUT</a></p>
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<p>NOTE: The example below is written for the BS2 and will run on any of the BS2-family modules. Modify the $STAMP directive (as required) before downloading to the BS2e, BS2sx, BS2p, BS2pe, or BS2px.</p><pre class="BScode" xml:space="preserve">' FREQOUT.BS2
' This program demonstrates a sound-effects generation by the BASIC Stamp.
' Conditional compilation sets timing and frequency adjustment factors so
' that the output will sound the same on any BS2 module.
' {$STAMP BS2}
' {$PBASIC 2.5}
Spkr PIN 10 ' output pin for FREQOUT
#SELECT $STAMP
#CASE BS2, BS2E
TmAdj CON $100 ' x 1.0 (time adjust)
FrAdj CON $100 ' x 1.0 (freq adjust)
#CASE BS2SX
TmAdj CON $280 ' x 2.5
FrAdj CON $066 ' x 0.4
#CASE BS2P
TmAdj CON $3C5 ' x 3.77
FrAdj CON $044 ' x 0.265
#CASE BS2PE
TmAdj CON $100 ' x 1.0
FrAdj CON $0A9 ' x 0.66
#CASE BS2PX
TmAdj CON $607 ' x 6.02
FrAdj CON $02A ' x 0.166
#ENDSELECT
Main:
DEBUG "Let's make a call...", CR
' combine 350 Hz & 440 Hz for dial tone
FREQOUT Spkr, 2000 */ TmAdj, 350 */ FrAdj, 440 */ FrAdj
' dial number (digits 150 ms on, 25 ms off)
DTMFOUT Spkr, 150 */ TmAdj, 25, [5, 5, 5, 1, 2, 1, 2]
PAUSE 500
' bad connection (SIT sequence)
FREQOUT Spkr, 375 */ TmAdj, 985 */ FrAdj
FREQOUT Spkr, 375 */ TmAdj, 1371 */ FrAdj
FREQOUT Spkr, 375 */ TmAdj, 1777 */ FrAdj
DEBUG "Oops! -- try again...", CR
PAUSE 1000
DTMFOUT Spkr, 150 */ TmAdj, 25, [5, 5, 5, 2, 2, 2, 2]
DEBUG "Ringing"
FREQOUT Spkr, 2000 */ TmAdj, 440 */ FrAdj, 480 */ FrAdj
PAUSE 4000
FREQOUT Spkr, 2000 */ TmAdj, 440 */ FrAdj, 480 */ FrAdj
INPUT Spkr
DEBUG CLS, "Done."
END
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<p style="text-align: right;">Copyright © <span class="ContactInfoCompanyName">Parallax Inc.</span></p>
<p style="text-align: right;"><span class="SystemShortDate">8/8/2012</span>
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