【摘要】：數(shù)字示波器是電子測量領(lǐng)域最為常見的一種檢測工具,為科研人員和工程技術(shù)人員廣泛使用。得益于科技不停地發(fā)展,各種電子設(shè)備朝著小型化、精密化迅猛發(fā)展,信號的頻率的增長令信號完整性對電子設(shè)備正常運(yùn)行的影響越愈發(fā)增大。傳統(tǒng)的臺式示波器因其尺寸較大,不適合工程人員野外工作,這增長了便攜式示波器的需求。此外傳統(tǒng)示波器的測量功能有限,已經(jīng)不能夠滿足更為多樣的需求,更為智能化和多功能才是未來發(fā)展的趨勢。Android操作系統(tǒng)有便于開發(fā),應(yīng)用多樣,功能強(qiáng)大的特點(diǎn),適合作為多功能示波器的軟件環(huán)境。所以設(shè)計(jì)一款簡單易用、自動測量并能夠直觀顯示的便攜式數(shù)字示波器很有價(jià)值,而且該示波器具有支持手指多點(diǎn)觸控,顯示色彩絢麗,操作界面友好等特點(diǎn)。本項(xiàng)目目的在于設(shè)計(jì)一款基于Android系統(tǒng)的便攜式示波器,本文主要工作為數(shù)字示波器的處理器平臺設(shè)計(jì)。本文主要研究用于數(shù)字示波器的核心板的硬件設(shè)計(jì)。本設(shè)計(jì)里的核心板采用三星公司的Exynos4412芯片作為核心處理器,其主頻高達(dá)1.5 GHz。設(shè)計(jì)使用1 GB DDR3存儲器和4 GB i NAND FLASH構(gòu)成最小系統(tǒng),為平臺整體提供了強(qiáng)勁的硬件方面的處理能力。處理器平臺采用連接10.1寸LVDS液晶顯示屏的設(shè)計(jì),采用電容式觸摸屏支持五點(diǎn)觸控。處理器平臺還設(shè)計(jì)有USB接口,串口,以太網(wǎng)口,SDIO,C2C等多種接口,方便與多種外設(shè)連接以實(shí)現(xiàn)功能擴(kuò)展。此外,結(jié)合高速數(shù)字電路的設(shè)計(jì)特點(diǎn)和相關(guān)要求對數(shù)字示波器處理器平臺核心板的印制電路板進(jìn)行設(shè)計(jì),并對DDR SDRAM控制器和電路設(shè)計(jì)進(jìn)行了相關(guān)研究。
[Abstract]:Digital oscilloscope is the most common testing tool in the field of electronic measurement, which is widely used by researchers and engineers. Due to the continuous development of science and technology, various electronic devices are developing rapidly towards miniaturization and precision. The increase of signal frequency makes the influence of signal integrity on the normal operation of electronic equipment more and more. Because of its large size, traditional desktop oscilloscope is not suitable for field work, which increases the demand of portable oscilloscope. In addition, the traditional oscilloscope has limited measuring function and can no longer meet the needs of more diverse, more intelligent and multi-function is the trend of future development. Android operating system has the characteristics of easy development, diverse application and powerful function. It is suitable for the software environment of multifunctional oscilloscope. So it is very valuable to design a portable digital oscilloscope which is easy to use, automatic measurement and can be displayed intuitively. Moreover, the oscilloscope has the characteristics of supporting multi-touch control of fingers, colorful display, friendly operation interface and so on. The purpose of this project is to design a portable oscilloscope based on Android system. This paper mainly studies the hardware design of the core board used in digital oscilloscope. The core board of this design uses Samsung Exynos4412 chip as the core processor, and its main frequency is up to 1.5 GHz.. The design uses 1 GB DDR3 memory and 4 GB i NAND FLASH to form the minimum system, which provides the strong hardware processing ability for the platform as a whole. The processor platform is designed with a 10. 1 inch LVDS LCD and a capacitive touch screen to support five-point touch. The processor platform is also designed with USB interface, serial port, Ethernet port, SDIO,C2C and other interfaces, which can be easily connected with a variety of peripherals to achieve functional expansion. In addition, the printed circuit board of the digital oscilloscope processor platform core board is designed according to the design characteristics and related requirements of high-speed digital circuit, and the DDR SDRAM controller and circuit design are also studied.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM935.37

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本文編號：2374013