Appendix A Programming The Watchdog Timer - Advantech PCM-9550F User Manual

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

Appendix A Programming the Watchdog Timer

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