Research In Advanced Instrumentation Platform Based On ARM And μC/OS-Ⅱ

For advanced products development trend of instrumentation, the paper presents and realizes a kind of control platform based onμC/OS-II embedded operating system and ARM7 microprocessor. And make the using of instrumentation more convenient and intelligent. The system integrates a variety of technologies which are developing very soon, such as embedded system, USB communications protocol, LAN communications protocol and show. The system achieves to transmit data through USB and LAN communication module. The system has the advantage of high-speed and real-time. So it can be widely applied to various fields.As to the hardware, the embedded control platform is established based on LPC2220. And design the show module, USB communications module, LAN communications module with application. The control platform connects external equipment with USB module and LAN module for transmitting the data of instrumentation which connects the control platform with SPI interface. USB interface circuit adopts CY7C68001 of Cypress. LAN communications module use Ethernet control unit CS8900 of CIRRUSLOGIC for realizing bottom driver.As to the software,μC/OS-II operating system is transplated to the processor, and the driver of every module has been included. The function of displaying instrumentation data with SPI,USB communication and LAN communication has been achieved too. WEB SERVER achieved by microprocessor in network communication module. It realizes the function of sending the control command and recevicing data packet.The test result of this supervisory system indicates that it works normally and reaches the design goales. This proves that the method is feasible, and the system can be used broadly for advanced instrumentation.