National Instruments NI-Motion, User Manual

Page: 269 / 305

Chapter 15 Scanning
NI-Motion User Manual 15-18 ni.com
vectorSpace = NIMC_VECTOR_SPACE1;
// Configure a 2D vector space comprised of axes 1
and 2
err = flex_config_vect_spc (boardID, vectorSpace,
NIMC_AXIS1, NIMC_AXIS2, NIMC_AXIS3);
CheckError;
// Set the operation mode to absolute position
err = flex_set_op_mode (boardID, vectorSpace,
NIMC_ABSOLUTE_CONTOURING);
CheckError;
// Configure buffer on motion controller memory (RAM)
// Notice requested time interval is hardcoded to 10
milliseconds
err = flex_configure_buffer (boardID, 1 /*buffer
number*/, vectorSpace, NIMC_POSITION_DATA,
bufferSize, numPoints, NIMC_TRUE, 10,
&actualInterval);
// Send the first 1000 points of the data
downloadData = malloc(sizeof( i32 )*bufferSize);
for (i=0;i<bufferSize;i++){downloadData[i] =
points[i];currentDa+;}
err = flex_write_buffer (boardID, 1/*buffer number*/,
bufferSize, 0, downloadData, 0xFF);
free(downloadData);
downloadData = NULL;
CheckError;
// Start Motion
err = flex_start (boardID, vectorSpace, 0);
CheckError;
for (;;){
axisStatus = 0;
// Check for available space and download
remaining points // every 50 milliseconds
Sleep(50);
// Check to see if there are more points to
download
if (currentDataPoint < numPoints){
err = flex_check_buffer_rtn (boardID,
1/*buffer number*/, &backlog,
&bufferState, &pointsDone);
CheckError;