NATIONAL Instruments has released LabVIEW 7.1 graphical development product.
It extends Express technology to automated instrumentation and real-time applications with new Express VIs for NI modular instruments and NI-DAQmx, advanced debugging, and low-level execution timing for the LabVIEW 7.1 real time module.
With five Express VIs for NI digitisers, signal generators, and high-speed digital I/O, engineers can configure sophisticated measurements and acquire data with a few mouse clicks. The redesigned NI-DAQmx measurement services software increases performance of single-loop PID applications by 30% and simplifies hardware-timed loop implementation.
The PDA Module has faster multichannel acquisition as well as analogue and digital triggering. Engineers can use this module to create customised handheld DMM applications and communicate with Bluetooth-enabled devices.
LabVIEW 7.1 introduces advanced execution timing and graphical debugging for low-level control and visibility of real-time system execution. The timed loop allows engineers to specify precise timing of code segments, coordinate multiple activities, and define priority-based loops for creating multirate applications. The execution trace toolkit allows engineers with the real time module to quickly identify sources of jitter, such as memory allocation and race conditions.
The FPGA module improves the efficiency of embedded FPGA applications. Single-cycle while loops execute multiple functions within a single 25ns tick of the 40MHz global clock. This allows engineers to develop FPGA code that executes as efficiently as hand-coded VHDL. They can also reuse their existing VHDL code with a new HDL interface node.