Definition:

#include <aMotion.h>
object code: aMotion.c



aErr aMotion_GetValue(

aStemLib stemRef, const unsigned char module, const unsigned char channel, short* pPosition);

Parameters:

stemRef	-	An opaque library reference representing the aStem library which manages the communication with the BrainStem modules.
module	-	The IIC address of the Moto module that will return the setpoint (or value) for one of its motion control channels.  This need not be the router.
channel	-	The index of the motion control channel.
pPosition	-	Address of short where the result will be stored.

Return Value:

This routine returns aErrNone when there are no errors.

Description:

This routine manages the BrainStem packets needed to request the 2-byte setpoint associated with a motion control channel and receive the reply.

See the cmdMO_SET documentation for a discussion of what the setpoint means for various motion control modes.

Related:

aStem_GetLibRef, aStem_ReleaseLibRef, aMotion_SetValue