Appendix B
Programming the Watchdog Timer
143
The following example shows how you might program the watchdog timer
in BASIC:
10
REM
Watchdog timer example program
20
OUT &H443, data REM
Start and restart the watchdog
30
GOSUB 1000 REM
Your application task #1,
40
OUT &H443, data REM
Reset the timer
50
GOSUB 2000 REM
Your application task #2,
60
OUT &H443, data REM
Reset the timer
70
X=INP (&H443) REM,
Disable the watchdog timer
80
END
1000
REM
Subroutine #1, your application task
1070
RETURN
2000
REM
Subroutine #2, your application task
2090
RETURN
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