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<h1>CONFIGPIN Example</h1>
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<p style="text-align: right;">Syntax: <a href="../Commands/CONFIGPIN.htm" target="" title="" alt="" class="MCXref_0" xrefformat="{paratext}">CONFIGPIN</a></p>
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<p> </p><pre class="BScode" xml:space="preserve">' CONFIGPIN.BPX
' This example demonstrates the use of the CONFIGPIN command.
' All I/O pins are set to inputs with various combinations of
' Pull-Up Resistor, Logic Threshold and Schmitt-Trigger properties.
' While running, this program will constantly display the state of all
' input pins along with an indication of the configuration for each group
' of pins. Try connecting different input signals to the I/O pins (such as
' buttons, a function generator with a slowing sweeping signal (0 to 5
' VDC)) or simply running your fingers across the I/O pins and note how
' they react based upon their configured property.
' {$STAMP BS2px}
' {$PBASIC 2.5}
#IF $STAMP <> BS2PX #THEN
#ERROR "This program requires a BS2px."
#ENDIF
Setup:
CONFIGPIN DIRECTION, %0000000000000000 ' Set all I/O pins to inputs
CONFIGPIN PULLUP, %1111111111110000 ' Enable pull-ups on pins 4 - 15
CONFIGPIN THRESHOLD, %0000111100000000 ' Set P8-P11 to CMOS, others TTL
CONFIGPIN SCHMITT, %1111000000000000 ' Enable Schmitt-Triggers P12-P15
DEBUG CLS,
" BS2px INPUT PIN CONFIGURATION TEST", CR,
"=========================================================", CR,
" P15-P12: Pull-Up Resistors, TTL & Schmitt-Triggers ", CR,
" / ", CR,
" / P11-P8: Pull-Up Resistors & CMOS ", CR,
" / / ", CR,
" | / P7-P4: Pull-Up Resistors & TTL ", CR,
" | | / ", CR,
" | | | P3-P0: Normal ", CR,
" | | | / ", CR,
" | | | | ", CR,
"---- ---- ---- ---- "
Main:
DO
' Display input pin states
DEBUG CRSRXY, 0, 12 ,
BIN4 IND, " ", BIN4 INC, " ", BIN4 INB, " ", BIN4 INA
LOOP
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<p style="text-align: right;"><span class="SystemShortDate">8/8/2012</span>
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