Definition:

#include <aGPM.tea>




void aGPM_SetPortDir(

char addr, char dir);

Parameters:

addr	-	IIC address of the specified GPM.
dir	-	Direction bits for the digital IO port.

Return Value:

This routine does not return a value.

Description:

This routine sets the direction bits of the digital IO port on a GPM.  The lower 4 bits are the direction bits.  Setting a bit makes the corresponding pin an input.  Clearing a bit makes the corresponding pin an output.  See the documentation for the GPS Module for more details regarding GPM registers and functions.

Example:

#include <aGPM.tea>

aGPM_SetPortDir((unsigned char)0xD0, 0x03);


This would configure digital IO pins 0 and 1 as inputs and digital IO pins 2 and 3 as outputs on the GPM.

Related:

aGPM_Get2DigitInt, aGPM_Get3DigitInt, aGPM_GetYear, aGPM_GetAltitude, aGPM_GetAnalogInput, aGPM_GetHours, aGPM_GetMinutes, aGPM_GetSeconds, aGPM_GetDay, aGPM_GetMonth, aGPM_GetLatitudeDegrees, aGPM_GetLatitudeMinutes, aGPM_GetLatitudeFrac, aGPM_GetLatitudeDirChar, aGPM_GetLongitudeDegrees, aGPM_GetLongitudeMinutes, aGPM_GetLongitudeFrac, aGPM_GetLongitudeDirChar, aGPM_GetGPSQuality, aGPM_GetSatellitesInUse, aGPM_GetHDOP, aGPM_GetTrueHeading, aGPM_GetTrueHeadingFrac, aGPM_GetMagHeading, aGPM_GetMagHeadingFrac, aGPM_GetSpeed, aGPM_GetSpeedFrac, aGPM_GetSatelliteID, aGPM_GetSatelliteSignalLevel, aGPM_GetDigitalIO, aGPM_GetPosFoundFlag, aGPM_GetStatus, aGPM_SetPortBits