Multi-Tasking Based on ARM9-μC/OSII A/D Acquisition System Design and Implementation

In order to achieve fast and efficient data acquisition and digital-to-analog conversion, based on ARM9 Micro-controller S3C2410 and embedded real-time operating system μC/OS-II of multi-tasking A / D acquisition system. Not only able to finish with high precision, reliable, stable, real-time multi-channel analog signals and on-off signal data acquisition, and displays it on the LCD in real time. Completed in ADS1.2 compiled environment, system software using C language and assembly language mix programming, which makes full use of the advantages of different languages. This paper constructs the system's overall design, hardware circuit design method is given in detail, at the same time describes key transplant μC/OS-II embedded operating systems and software design.