W83627Dhg Watchdog Timer Initial Program - Aaeon AQ7-LN Manual

Q s e ve n M o d u l e
A.2 W83627DHG Watchdog Timer Initial Program
Example: Setting 10 sec. as Watchdog timeout interval
;///////////////////////////////////////////////////////////////////////////////////////////////
Mov dx,2eh
Mov al,87h
Out dx,al
Out dx,al
;///////////////////////////////////////////////////////////////////////////////////////////////
Mov al,07h
Out dx,al
Inc dx
Mov al,08h
2)
Out dx,al
;///////////////////////////////////////////////////////////////////////////////////////////////
Dec dx
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
A Q 7 - L N
;Enter W83627DHG config mode
(out 87h to 2eh twice)
;Select Logical Device 8 (GPIO Port
;CR30 (GP20~GP27)
;Activate GPIO2
Appendix A Programming the Watchdog Timer
A-7