National Instruments NI-Motion - page 225

Chapter 14 Onboard Programs
© National Instruments Corporation 14-17 NI-Motion User Manual
C/C++ Code
The following example code is not necessarily complete, and may
notcompile 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)
{
u8 boardID;// Board identification number
u8 axis; // Axis number
u16 csr = 0;// Communication status register
i32 constant;// Constant multiplier
//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;
// constant to multiply the ADC value read to
calculate the //required velocity
constant = 10;
// Initialize onboard variable 4 to 0
err = flex_load_var(boardID, 0, 4);
CheckError;
// Initialize onboard variable 1 to the constant
multiplier
err = flex_load_var(boardID, constant, 1);
CheckError;
// Begin onboard program storage - program number 1
err = flex_begin_store(boardID, 1);
// Set the operation mode to velocity
err = flex_set_op_mode(boardID, axis,
NIMC_VELOCITY);
CheckError;
// Insert Label number 1
err = flex_insert_program_label(boardID, 1);
CheckError;
// Read ADC channel and store ADC value in variable 2