EVOC EC7-1813CLD2NA SERIES, User Manual

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Appendix
­ 48 ­ EC7­1813CLD2NA SERIES
val |=0x40;
outportb(DATA_PORT, val);
b. Configure WDT to interrupt mode
outportb(INDEX_PORT,0x72)
outportb(DATA_PORT,IRQ_ NO); /*Please replace the constant IRQ_NO with
the interrupt number need to be used. The available range of the interrupt
number has been listed in the beginning of this chapter*/
outportb(INDEX_PORT,0X72);
int val=inportb(DATA_PORT);
val&=0xBF;
outportb(DATA_PORT, val);
(3) Configure WDT to time by minute or second:
a. Time by minute:
val &=0x7f;
outportb(INDEX_PORT, 0x72);
outportb(DATA_PORT, val);
b. Time by second:
val |=0x80;
outportb(INDEX_PORT
，
0x72);
outportb(DATA_PORT, val);
(4) Enable/disable WDT
a.
Enable WDT:
outportb(INDEX_PORT,0x73);
outportb(DATA_PORT,TIME_OUT_VALUE); /*Please replace the constant
TIME_OUT_VALUE with the unit number of timeout value (0x01 ~ 0xFF)*/
b. Disable WDT:
outportb(INDEX_PORT,0xf6);
outportb(DATA_PORT,0x00);