com.alibaba.excel.exception.ExcelCommonException: Convert excel format exception.You can try specifying the 'excelType' yourself

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基于FPGA的简易逻辑分析仪的设计与仿真完整设计.pdf

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nt similar to an oscilloscope, used for analyzing and measuring the logic waveforms and relationships in digital systems. It captures and stores data following a trigger event when the clock arrives and matches a predefined trigger word's logic state. This paper presents the design and simulation of a simple logic analyzer with eight channels, designed using an FPGA (Field-Programmable Gate Array) development device. The analyzer processes and displays the logic signals from eight input channels, featuring a sampling rate of 100kHz and a storage depth of 32 bits per channel. The FPGA and VHDL (VHSIC Hardware Description Language) are employed as the primary design methods for implementing this 8-channel logic analyzer. The system consists of various functional modules, each programmed according to their designated tasks: the trigger module, data buffering module, frequency divider module, and memory module. These modules have been individually simulated and validated, ultimately leading to the design and simulation of the complete system circuit. The simulation results confirm that all modules meet their specified requirements and function as intended. The overall system方案 yields satisfactory results, indicating the feasibility of the design and fulfilling its objectives. Key terms associated with this project include Logic Analyzer, Data Acquisition, FPGA, and VHDL. In the first chapter, the background of the topic selection is discussed, highlighting the importance of logic analyzers in digital system debugging and the role of FPGAs in providing flexible and customizable hardware solutions. The introduction also briefly introduces the FPGA technology, which is a programmable integrated circuit that can be configured after manufacturing, allowing for a wide range of applications. The second chapter details the design plan, specifying the design tasks and requirements for the logic analyzer. It outlines the overall approach, which involves breaking down the complex analyzer into smaller, manageable submodules. In the third chapter, each submodule is presented in detail, starting with the digital signal generator, which is responsible for producing test signals for the analysis. This section covers the software flowchart and block diagram of the generator, followed by the implementation of an asynchronous reset/set general-purpose 8-bit register, an arbitrary frequency divider, a cyclic shift register, and finally, the simulation results for the entire signal generator. Next, the trigger circuit is described, which detects specific conditions in the input signals to initiate data capture. The implementation and simulation of a storage element called REGN are discussed, along with a 640-divider module named FREQ, which plays a crucial role in determining the sampling rate. Lastly, a memory module (RAM) is implemented for storing captured data. Chapter four focuses on the integration of these submodules into the top-level system design. The system's high-level schematic and simulation results are presented, showcasing how the individual components work together to form a functional logic analyzer. The conclusion summarizes the project, emphasizing the successful completion of the design goals and the validity of the chosen methodology. The paper concludes with a list of references and an acknowledgement section, crediting sources and expressing gratitude to those who contributed to the work. In summary, this project demonstrates a comprehensive understanding of FPGA-based design and VHDL programming by developing a practical and effective logic analyzer. By dividing the task into smaller, manageable modules and thoroughly simulating each part, the designer ensures the reliability and functionality of the final system, making it a valuable contribution to the field of digital electronics and FPGA-based design.

您好！对于ExcelCommonException异常，您可以尝试手动指定 'excelType' 参数来解决。 'excelType' 参数用于指定Excel文件的格式，例如xls或xlsx。请确认您的Excel文件的格式，并将其作为参数传递给相关方法。如果您仍然遇到问题，请提供更多详细信息，以便我能够更好地帮助您解决该问题。

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com.alibaba.excel.exception.ExcelCommonException: Convert excel format exception.You can try specifying the 'excelType' yourself

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