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Design of Networked Data Acquisition System Based on MSC1210
A new type of precision analog-to-digital converter MSC1210 integrated with 8051 microcontroller and FLASH memory is introduced. A networked data acquisition system based on Ethernet technology and RS-485 protocol is presented.
Keywords: MSC1210; analog-to-digital converter; network data acquisition
3.Kotei Navi & Data Corp. Wuhan 430074, China)
MSC1210 is a microprocessor that integrates a variety of external device resources. In addition to the 24-bit high-precision A / D converter, it also provides the following external device interfaces: 8-channel input multiplexer, which can select the input channel through the program. Used for ADC analog signal input selection; programmable gain amplifier, amplification factor 1 ~ 128, which can effectively improve the sensitivity of the ADC; offset digital-to-analog converter ODAC, which can flexibly change the input range of the ADC; 16-bit pulse width modulation control (PWM); SPI controller (using the first-in, first-out method of stacking).
Due to the high integration of the chip, the hardware circuit becomes simple, and the peripheral components of the chip are very few, so the reliability of the system is greatly improved, the development cycle is shortened, and the development cost is greatly reduced.
Downstream data format (command sent downward by the host computer)
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