National Instruments NI-Motion - Manual (Page 180)

Chapter 12 Synchronization
NI-Motion User Manual 12-30 ni.com
u32 pointsDone;// Indicates the number of points that
have been //consumed
u16 bufferState;// Indicates the state of the onboard
buffer
u32 currentDataPoint = 0;// Indicates the next points
to be read //from the buffer
i32 * readBuffer = NULL;// The temporary array that is
created to //read captured positions
u32 i;
//Variables for modal error handling
u16 commandID;// The commandID of the function
u16 resourceID;// The resource ID
i32 errorCode;// Error code
///////////////////////////////
// Set the board ID
boardID = 1;
// Set the axis number
axis = NIMC_AXIS1;
////////////////////////////////
// Configure buffer on motion controller memory (RAM)
// Notice requested time interval is hardcoded to 10
milliseconds
err = flex_configure_buffer(boardID, 1 /*buffer
number*/, axis, NIMC_HS_CAPTURE_READBACK,
bufferSize, totalPoints, NIMC_TRUE, 10,
&actualInterval);
CheckError;
// Configure High-Speed Capture
err = flex_configure_hs_capture(boardID, axis,
NIMC_HS_LOW_TO_HIGH_EDGE, NIMC_OPERATION_BUFFERED);
CheckError;
// Enable the high-speed capture on axis
err = flex_enable_hs_capture(boardID, axis,
NIMC_TRUE);
CheckError;
do
{
err = flex_check_buffer_rtn(boardID, 1/*buffer
number*/, &backlog, &bufferState, &pointsDone);
CheckError;
// Check backlog for captured position in buffer