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The Design and Implementation of a High-speed Data Acquisition System Based on NiosⅡ

Author: JiangXiaoZuo
Tutor: YangXiaoFei
School: Huazhong University of Science and Technology
Course: Microelectronics and Solid State Electronics
Keywords: High - speed data acquisition SOPC Nios Ⅱ User logic peripherals CAN bus
CLC: TP274.2
Type: Master's thesis
Year: 2007
Downloads: 484
Quote: 6
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Abstract


High-speed data acquisition system is an important part of the pulse laser rangefinder , its sampling rate largely determines the accuracy of the measurement of pulsed laser rangefinder . Programmable system - on - chip (SOPC) system design technology, a new hardware and software co-design the circuit system in the future is an important direction of development . This paper studies and analyzes based on the the Nios Ⅱ 1Gsps sampling rate and 8bit resolution high-speed data acquisition system design and realization . This article describes , including the introduction of the knowledge -based the Nios Ⅱ high-speed data acquisition system design and implementation process , the system overall program design , system hardware and software implementation and system testing and discussion . In this paper, the custom CAN bus controller in the FPGA optocoupler CAN bus transceiver chip CAN bus communication , and a detailed description of the CAN bus controller hardware logic and the design of the driver . In addition , a detailed discussion of the systematic errors , ADC parallel alternate sampling mode measurement of the error and amended the final results of the measurements , the pulsed laser rangefinder measurement accuracy of the design requirements . In this paper, design a build mode system functions based on user logic peripherals . The mode is conducive to improve the flexibility of the system control , reducing the number of peripheral chips , signal reliability and lower overall costs , and the system has a strong scalability . This paper the design and implementation of high-speed data acquisition system is not only able to meet the pulsed laser rangefinder to improve measurement accuracy requirements , research and development and other high-speed data acquisition system is also an important reference value .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Data collection and processing systems
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