本文關(guān)鍵詞： 多設(shè)備管理器 VGA遠(yuǎn)距離傳輸 字符隨屏顯示 軟核　出處：《南京理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：現(xiàn)代企業(yè)對(duì)終端設(shè)備的數(shù)量使用的迅速增加,催生集中管理機(jī)制KVM技術(shù)的誕生,KVM即為英文鍵盤(Keyboard),顯示器(Video)與鼠標(biāo)(Mouse)首字母合寫,KVM系統(tǒng)可以通過(guò)一套鼠標(biāo),顯示器和鍵盤管理多臺(tái)終端設(shè)備,有效提高管理效率。 本課題基于FPGA與MCU的多串口通信系統(tǒng)的接口設(shè)計(jì)是KVM技術(shù)的重要組成部分,將KVM系統(tǒng)外設(shè)終端的視頻信號(hào)和鍵鼠信號(hào)調(diào)制通過(guò)CAT5電纜實(shí)現(xiàn)低成本遠(yuǎn)距離傳輸,再通過(guò)MCU和FPGA相結(jié)合的方法實(shí)現(xiàn)KVM系統(tǒng)同時(shí)與多個(gè)外設(shè)終端實(shí)時(shí)進(jìn)行通信顯示的要求。研究?jī)?nèi)容包括基于FPGA的UART軟核設(shè)計(jì)、基于FPGA的隨屏顯示設(shè)計(jì)、基于FPGA與MCU的串口擴(kuò)展方法以及鍵鼠信號(hào)、視頻信號(hào)調(diào)制的相關(guān)硬件電路設(shè)計(jì)。 相較專用UART芯片,基于FPGA設(shè)計(jì)的UART軟核有更強(qiáng)的適用性和可移植性,本課題針對(duì)這個(gè)特點(diǎn),設(shè)計(jì)了適用于KVM系統(tǒng)的具有波特率可調(diào),奇偶可檢校等功能的UART軟核,采用自頂向下的設(shè)計(jì)方法,將UART軟核分為若干模塊應(yīng)用硬件描述語(yǔ)言VHDL進(jìn)行具體設(shè)計(jì),再使用MCU對(duì)軟核進(jìn)行調(diào)用以實(shí)現(xiàn)多串口擴(kuò)展,并應(yīng)用于KVM系統(tǒng)實(shí)現(xiàn)。 通過(guò)軟件仿真以及系統(tǒng)聯(lián)調(diào),實(shí)驗(yàn)結(jié)果表明本設(shè)計(jì)的多串口通信系統(tǒng)可以滿足設(shè)計(jì)要求。
[Abstract]:The rapid increase of the number of terminal equipment of modern enterprise use, the birth of birth of centralized management mechanism of KVM technology, KVM is English keyboard (Keyboard), display (Video) and mouse (Mouse) Co wrote the first letter, KVM system using a mouse, keyboard and display management of multiple devices, effectively improve the management efficiency.
The interface design of multi serial communication system based on FPGA and MCU is an important part of KVM technology, the video signal and mouse signal modulation KVM system peripheral terminal via a CAT5 cable to achieve low cost long-distance transmission method, and then through the MCU and FPGA to realize the combination of the KVM system and a plurality of peripheral terminals in real time according to communication requirements. Research contents include the core design of UART based on FPGA, with the screen display design based on FPGA, FPGA and MCU serial port expansion method and mouse signal based on the related hardware circuit of video signal modulation.
Comparing with the special UART chip, the design of FPGA based on UART core has stronger applicability and portability, aiming at this characteristic, designed with adjustable baud rate for the KVM system, can calibration functions such as parity UART core, using top-down design method, the UART core is divided into several modules using hardware description VHDL language for the specific design, then use MCU to continue the call to realize the serial port expansion, and applied to the KVM system.
Through the software simulation and the system connection, the experimental results show that the design of the multi serial communication system can meet the design requirements.

【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP334.7

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本文編號(hào)：1539821