LabVIEW has the advantage of high efficiency on development

all kinds of functions and so on. But it is not as good as the C language on hardware driving. Take a emulational device for opto-electric detecting in Hyper Spectral Imager for example

In order to resolve the technical difficulties on hardware interrupt in LabVIEW

the interrupt service routine was programmed by C language

the C program was changed to dynamic link library in the visual C++ and the library function node was called in LabVIEW. The control and test on opto-electric devices were achieved by 1553B bus communication. At the same time

a kind of method on improving transmission real time characteristic of 1553B was given in this paper

which bases on improved Rate-Monotonic Scheduling algorithm and K昉earson chi-square. In the condition of transmitting several periodic and aperiodic messages

the experimental results show that the method has good performance on real time characteristic and reliability

and the system has good expansibility.