This paper discussed mainly the character and the function of the Real-Time OS μC/OS-II, explained the architecture of Embedded System based on μC/OS-II and how to form an embedded development platform based on μC/OS-II, in addition, the transplantation of μC/OS-II in ARM microprocessor is discussed in details.
Th controller, with ARM micro-processor as its core andμC/OS-II real time operation system as its developing platform, can set the value of any blank shape and showes the designed curve in LCD monitor.
On the base of generalizing the existing condition of microprocessor-based distance relays at the electric transmission line, this subject analyzed the existing condition of the hardware of inland distance relays, compared 8-bit, 16-bit SCM and 32-bit DSP protection scheme, and generalized there merits and demerits, then gave a scheme of relays based on ARM micro-processor.
The hardware of detector adopted 32bit embedded ARM micro-processor LPC2119 . It firstly pre-handled the voltage signal of carrier wave, and then samples the signals through A/D, and go through some related digits signal process to compute the useful eigenvalue.
Based on embedded web server,a new design method for scientific grade CCD data acquisition system is proposed. And the data acquisition system is realized on the basis of the ARM micro-processor、embedded Linux and the fiber transfers module.
Based on the actuality and developing trend in the remote monitor system of electrical network, the thesis proposed a new way, which combined the ARM MPU and real-time operating system-μC/OS-Ⅱ, to design it.
Secondly, by studing the function and traditional application about intersection control system, the paper designs the hardware of intersection control system which used advanced ARM MPU S3C4510B, and analyses its chief functional modules, such as: Ethernet、 memorizer and system bus driver.