ex03 - led counter.bs2

proteus得一些经典例子

' {$STAMP BS2}
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'
' File...... Ex03 - LED Counter.BS2
' Purpose... Binary Counter
' Author.... Parallax
' E-mail.... [e-mail]
' Started...
' Updated... 01 MAY 2002
'
'
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' Program Description
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' Displays a binary counter on Pins 0 - 7
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' I/O Definitions
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LEDs VAR OutL ' LEDs on Pins 0 - 7
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' Constants
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MinCount CON 0 ' counter start value
MaxCount CON 255 ' counter end value
DelayTime CON 100 ' delay time in milliseconds
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' Variables
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counter VAR Byte
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' Initialization
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Initialize:
DirL = %11111111 ' make pins 0 - 7 outputs
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' Program Code
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Main:
FOR counter = MinCount TO MaxCount ' loop through all count values
LEDs = counter ' show count on LEDs
PAUSE DelayTime ' pause before next number
NEXT
GOTO Main ' do it again
END