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Appendix A - PXI Trigger I/O Function Reference
This appendix describes use of the PXI trigger I/O function library for the PXIe-63975
controller, to program routing of trigger signals between the trigger I/O SMB connector on
the faceplate and the PXI trigger bus on the backplane.
A.1 Data Types
The PXIe-63975 library uses these data types in pxitrigio.h in the directory X:\JYTEK\PXI
Trigger IO\Include. It is recommended that you use these data types in your application
programs. The table shows the data type names, ranges, and corresponding data types in
C/C++, Visual Basic, and Delphi for reference.
Type Description
Range
Type
C/C++(for 32-
bit compiler)
Visual Basic
Pascal
(Delphi)
U8
8-bit ASCII
character
0 to 255
unsigned char
Byte
Byte
I16
16-bit signed
integer
-32768 to 32767
short
Integer
SmallInt
U16
16-bit
unsigned
integer
0 to 65535
unsigned
short
Not
supported by
BASIC, use
the signed
integer (I16)
instead
word
I32
32-bit signed
integer
-2147483648
to
2147483647
long
Long
LongInt
U32
32-bit
unsigned
integer
0 to 4294967295
unsigned long Not
supported by
BASIC, use
the signed
long integer
(I32) instead
Cardinal
F32
32-bit single-
precision
floating-point
-3.402823E38 to
3.402823E38
float
Single
Single
F64
64-bit double-
precision
floating-point
1.7976831348
62315E308 to
1.7976831348
62315E309
double
Double
Double
