C/c++ code, C/c++ code -25 – National Instruments NI-Motion User Manual

Page 175

Chapter 12

Synchronization

12-25

NI-Motion User Manual

C/C++ Code

The following example code is not necessarily complete, and may
not compile if copied exactly. Refer to the

examples

folder on the

NI-Motion CD for files that are complete and compile as is.

// Main Function

void main(void)

{

boardID;// Board identification number

axis; // Axis number

u16

csr = 0;// Communication status register

u16

axisStatus;// Axis status

//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;

////////////////////////////////

// Route breakpoint 1 to RTSI line 1

err = flex_select_signal (boardID, NIMC_RTSI1

/*destination*/, NIMC_BREAKPOINT1/*source*/);

CheckError;

//Configure Breakpoint

err = flex_configure_breakpoint(boardID, axis,

NIMC_MODULO_BREAKPOINT, NIMC_SET_BREAKPOINT,

NIMC_OPERATION_SINGLE);

CheckError;

// Load Breakpoint Modulus - repeat period

err = flex_load_bp_modulus(boardID, axis, 500,

0xFF);

CheckError;

// Load Breakpoint Position - position at which

breakpoint should //occur every modulo

err = flex_load_pos_bp(boardID, axis, 0, 0xFF);

CheckError;

for

(;;){

// Enable the breakpoint on axis 1