ROHS EmCORE-i2702, Руководство пользователя

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Appendix
4.5 Digital I/O Setting
Below are the source codes written in assembly & C, please take them
for Digital I/O application examples.
C Language Code
/* */
/* I have been a long time to write program by C. */
/* */
/*----- Include Header Area -----*/
#include "math.h"
#include "stdio.h"
#include "dos.h"
/*----- routing, sub-routing -----*/
void main()
outportb(0x2e, 0x07); /* point to logical device */
outportb(0x2e+1, 0x07); /* Select logical device 7 */
outportb(0x2e, 0x72); /* Select Index 72h */
outportb(0x2e+1, 0xC0); /* Set 72h bit7=1; Unit Second */
/* Set 72h bit7=0; Unit Minute */
/* Set 72h bit6=1; WDT output
through KRST Enable*/
/* Set 72h bit6=0; WDT output
through KRST Disable*/
outportb(0x2e, 0x7); /* Set Index 7h */
outportb(0x2e+1, 0x00); /* Set 7h to 00h */
outportb(0x2e, 0x7); /* Set Index 7h */
outportb(0x2e+1, 0x0); /* Set 7h to 0h ( unit time) */
}