National Instruments NI-Motion - page 156

Chapter 12 Synchronization
NI-Motion User Manual 12-6 ni.com
// Buffer resources
i32 breakpointPositions[] = {1000, 1100, 1200, 1300,
1400, 1500, 1600};
u16 numberOfPoints = 7;// Number of breakpoints
f64 actualInterval;// Required in the function call
but not being //used
f64 requestedInterval = 10.0;// Required in the
function call but //not being used
u32 backLog;// Number of space available in buffer
u16 bufferState;// Buffer state
u32 pointsDone;// Number of breakpoints done or
consumed
// Configure the buffer for buffered breakpoint
err = flex_configure_buffer(boardID, buffer,axis,
NIMC_BREAKPOINT_DATA, numberOfPoints,
numberOfPoints,NIMC_TRUE, requestedInterval,
&actualInterval);
CheckError;
// Write the breakpoint position to the buffer
err = flex_write_buffer(boardID, buffer,
numberOfPoints, NIMC_REGENERATION_NO_CHANGE,
breakpointPositions, 0xFF);
CheckError;
// Configure the breakpoint to be buffered breakpoint
err = flex_configure_breakpoint(boardID, axis,
NIMC_ABSOLUTE_BREAKPOINT, NIMC_PULSE_BREAKPOINT,
NIMC_OPERATION_BUFFERED);
CheckError;
// Enable the breakpoint
err = flex_enable_breakpoint(boardID, axis,
NIMC_TRUE);
CheckError;
// Poll the status of the buffer, if you have more
breakpoint //positions to write, insert
flex_write_buffer call here.
do
{
// Check the buffer status
err = flex_check_buffer_rtn(boardID, buffer,
&backLog, &bufferState, &pointsDone);
CheckError;
Sleep(50);