27220 Parallax Inc, 27220 Datasheet - Page 44

• Manufacturer Part Number: 27220
• Description: BOOK STAMPWORKS
• Manufacturer: Parallax Inc

Specifications of 27220

• Accessory Type: Booklet
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: StampWorks
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

Program: SW21-EX03-Counter_LEDs.BS2:
' {$STAMP BS2}
' {$PBASIC 2.5}
' -----[ Program Description ]---------------------------------------------
'
' Displays a 4-bit binary counter on LEDs connected to P0 - P3.
' program will work, unmodified, on any BS2-family module.
' -----[ I/O Definitions ]-------------------------------------------------
LEDs
LEDsDirs
' -----[ Constants ]-------------------------------------------------------
MinCount
MaxCount
DelayTm
' -----[ Variables ]-------------------------------------------------------
cntr
' -----[ Initialization ]--------------------------------------------------
Reset:
' -----[ Program Code ]----------------------------------------------------
Main:
LEDsDirs = %1111
DO
LOOP
FOR cntr = MinCount TO MaxCount
NEXT
LEDs = cntr
PAUSE DelayTm
VAR
VAR
CON
CON
CON
VAR
OUTA
DIRA
0
15
100
Nib
' LEDs on P0 - P3
' DIRS control for LEDs
' counter start value
' counter end value
' delay time for LEDs
' 4-bit counter variable
' make LEDs outputs
' loop through all values
' move count to LEDs
' hold a bit
' repeat forever
This