NEXCOM NISE 301 - Manual (Page 72)

Copyright © 2015 NEXCOM International Co., Ltd. All Rights Reserved. 58 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;
}