Abstract
Display meter is the basic unit of automation system. In order to improve the performance and the compatibility of display meter, a design of intelligent display meter based on ARM is put forward. The Micro Control Unit (MCU) STM32F103VE based on the 32 bit ARM Cortex–M3 core is used as the host controller of the meter system. On the basis of this controller, hardware and software design were carried out. The intelligent display meter can receive voltage and current signals from most sensors. Because of the excellent processing capability and rich peripherals of the MCU, the meter can handle large amounts of data rapidly so as to monitor the status of industrial field in real time and communicate with different upper computers.
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