Main, E.4 digital i/o sample program – AAEON TKS-P20-CV01 User Manual

Page 97

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E m b e d d e d B o x

T K S - P 2 0 - C V 0 1

Appendix E Digital I/O Ports

E-4

E.4 Digital I/O Sample Program

**************************************************************************

// SuperIO relative definition (Please reference to Table 2)

#define SIOIndex 0x2E

#define SIOData 0x2F

#define DIOLDN 0x06

IOWriteByte(byte IOPort, byte Value);

IOReadByte(byte IOPort);

// DIO relative definition (Please reference to Table 3)

#define DirReg 0xD0 // 0:input, 1: output

#define InputPin 0x00

#define OutputPin 0x01

#define OutputReg 0xD1 // 0:low, 1: high

#define StatusReg 0xD2 // 0:low, 1: high

#define PinLow 0x00

#define PinHigh 0x01

#define Pin1Bit 0x00

#define Pin2Bit 0x01

#define Pin3Bit 0x02

#define Pin4Bit 0x03

**************************************************************************

**************************************************************************

VOID

Main

(){

Boolean PinStatus ;

// Procedure : AaeonReadPinStatus

// Input :

//

Example, Read Digital I/O Pin 3 status

// Output :

//

InputStatus :

//

0: Digital I/O Pin level is low

//

1: Digital I/O Pin level is High

PinStatus = AaeonReadPinStatus(

Pin3Bit

);

// Procedure : AaeonSetOutputLevel

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