NEXCOM NISE 301 User Manual

Page 72

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NISE 301 User Manual

Appendix B: GPI/O Programming Guide

GPIO programming sample code

#define GPO0

(0x01 << 4)

#define GPO1

(0x01 << 5)

#define GPO2

(0x01 << 6)

#define GPO3

(0x01 << 7)

#define GPO0_HI

outportb(0xA07, GPO0)

#define GPO0_LO

outportb(0xA07, 0x00)

#define GPO1_HI

outportb(0xA07, GPO1)

#define GPO1_LO

outportb(0xA07, 0x00)

#define GPO2_HI

outportb(0xA07, GPO2)

#define GPO2_LO

outportb(0xA07, 0x00)

#define GPO3_HI

outportb(0xA07, GPO3)

#define GPO3_LO

outportb(0xA07, 0x00)

void main(void)

{

GPO0_HI;

GPO1_LO;

GPO2_HI;

GPO3_LO;

}