HEIDENHAIN IK 220 - Handbuch (Seite 119)

Driver Software for WINDOWS
119
pStatus: Status of the RAM buffer.
Bit 0=1: Buffer overflow
Bit 1=1: No value in the buffer
Bit 2=1: Last value is read from the buffer
Bit 15=1: Error while reading buffer
IK220GetSig
An amplitude-value pair stored in the RAM buffer is output.
The read counter is increased after reading.
Prototype: BOOL IK220GetSig (USHORT Axis,
USHORT* pPeriod, SHORT* pAmp0,
SHORT* pAmp90, USHORT* pRead,
USHORT* pWrite, USHORT* pStatus)
Axis: Number of the axis (0 to 15)
pPeriod: Pointer to a variable in which the lower 16 bits of
the signal-period counter are saved
pAmp0: Pointer to a variable in which the 0°-amplitude
value is saved
pAmp90: Pointer to a variable in which the 90°-amplitude
value is saved
pRead: Pointer to a variable in which the offset of the
writing pointer is saved in the RAM buffer.
pWrite: Pointer to a variable in which the offset of the
reading pointer is saved in the RAM buffer.
pStatus: Status of the RAM buffer.
Bit 0=1: Buffer overflow
Bit 1=1: No value in the buffer
Bit 2=1: Last value is read from the buffer
IK220BurstSig
Amplitude-value pairs previously stored in the RAM buffer are
output. The read pointer is then increased by the number of
read values.
Prototype: BOOL
IK220BurstSig (USHORT Axis,
USHORT maxCount, USHORT* pPeriod,
SHORT* pAmp0, SHORT* pAmp90,
USHORT* pCount, USHORT* pStatus)
Axis: Number of the axis (0 to 15)
maxCount: Maximum number of value pairs that are read
during latching
pPeriod: Pointer to an array of variables in which the signal-
period-counter values are saved Space must be
reserved for maxCount values!
pAmp0: Pointer to an array of variables in which the 0°
amplitude values are saved. Space must be
reserved for maxCount values!