基于ARM LINUX系統(tǒng)的綜合實(shí)驗(yàn)平臺(tái)接口模塊設(shè)計(jì)
發(fā)布時(shí)間：2018-08-25 13:43
【摘要】：本課題來(lái)源于985工程的某碩士研究生實(shí)踐教學(xué)改革項(xiàng)目，主要涉及綜合實(shí)驗(yàn)平臺(tái)的接口轉(zhuǎn)換模塊的設(shè)計(jì)與實(shí)現(xiàn)。綜合實(shí)驗(yàn)平臺(tái)是課題組針對(duì)研究生實(shí)踐教學(xué)而自主研發(fā)并制作的，實(shí)驗(yàn)平臺(tái)上包含52個(gè)各類(lèi)模塊以及仿真器。本課題的工作任務(wù)包括USB、GPIB和LAN接口轉(zhuǎn)換模塊的硬軟件設(shè)計(jì)。 通過(guò)對(duì)綜合實(shí)驗(yàn)平臺(tái)的需求分析，為方便與計(jì)算機(jī)進(jìn)行數(shù)據(jù)通信，采用了多功能接口模塊，接口模塊基于嵌入式Linux系統(tǒng)和ARM9處理器，工作內(nèi)容包括以下幾方面： 第一，ARM芯片和接口模塊芯片選型。采用了ARM9微處理器AT91RM9200和GPIB擴(kuò)展芯片NAT9914以及以太網(wǎng)物理層芯片DM9161EP。 第二，原理圖的設(shè)計(jì)。這里使用了Mentor工具軟件來(lái)設(shè)計(jì)接口模塊的原理圖和PCB板，分別完成了USB接口到LAN接口以及USB接口到GPIB接口的轉(zhuǎn)換。由于ARM和NAT9914在時(shí)序上無(wú)法兼容，因此采用了IO口模擬總線時(shí)序方案。硬件模塊加工回來(lái)后進(jìn)行了相應(yīng)的調(diào)試工作，以保證硬件功能的正常運(yùn)行。 第三，，接口模塊的嵌入式Linux構(gòu)建。包括建立交叉編譯環(huán)境、引導(dǎo)程序BootLoader的移植、Linux內(nèi)核移植和文件系統(tǒng)的創(chuàng)建。 第四，USB驅(qū)動(dòng)程序的優(yōu)化及GPIB設(shè)備驅(qū)動(dòng)程序的設(shè)計(jì)。首先對(duì)USB接口芯片廠家提供的Linux下的相應(yīng)驅(qū)動(dòng)程序進(jìn)行了優(yōu)化，以提高數(shù)據(jù)的傳輸速率，符合實(shí)驗(yàn)平臺(tái)的實(shí)際需求；其次，在沒(méi)有Linux下GPIB設(shè)備驅(qū)動(dòng)程序的情況下，自行編寫(xiě)了GPIB芯片NAT9914的驅(qū)動(dòng)程序，實(shí)現(xiàn)了基于ARM-Linux的GPIB接口功能。 時(shí)至本課題工作完成之際，所設(shè)計(jì)的接口轉(zhuǎn)換模塊經(jīng)測(cè)試表明性能穩(wěn)定，數(shù)據(jù)傳輸能力良好，滿足實(shí)驗(yàn)平臺(tái)工作要求，現(xiàn)已進(jìn)入批量制作階段。
[Abstract]:This subject comes from the project of practical teaching reform of a graduate student in Project 985. It mainly involves the design and implementation of the interface conversion module of the comprehensive experimental platform. The integrated experimental platform is independently developed and manufactured by the research group for postgraduate practical teaching. The experimental platform consists of 52 modules and simulators. The task of this thesis includes hardware and software design of USB,GPIB and LAN interface conversion module. In order to facilitate data communication with computer, a multi-function interface module is adopted, which is based on embedded Linux system and ARM9 processor. The work includes the following aspects: first, arm chip and interface module chip selection. ARM9 microprocessor AT91RM9200 and GPIB extension chip NAT9914 and Ethernet physical layer chip DM9161EP. are adopted. Second, the schematic design. The schematic diagram and PCB board of interface module are designed by using Mentor tool software. The conversion from USB interface to LAN interface and from USB interface to GPIB interface is completed respectively. Because ARM and NAT9914 can not be compatible in timing, IO port analog bus timing scheme is adopted. The hardware module is debugged to ensure the normal operation of the hardware function. Thirdly, the embedded Linux construction of interface module. Including the establishment of cross-compilation environment, boot program BootLoader porting Linux kernel migration and file system creation. The fourth part is the optimization of GPIB driver and the design of GPIB device driver. In order to improve the data transmission rate and meet the actual requirements of the experimental platform, the corresponding drivers provided by the USB interface chip manufacturer under Linux are optimized. Secondly, without the GPIB device driver under Linux, the driver of the GPIB device is not available. The driver of GPIB chip NAT9914 is written, and the GPIB interface function based on ARM-Linux is realized. From the time to the completion of the project, the design of the interface conversion module has been tested that the performance is stable, the data transmission ability is good, and it meets the requirements of the experimental platform, and has now entered the stage of batch production.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TP334.7
[Abstract]:This subject comes from the project of practical teaching reform of a graduate student in Project 985. It mainly involves the design and implementation of the interface conversion module of the comprehensive experimental platform. The integrated experimental platform is independently developed and manufactured by the research group for postgraduate practical teaching. The experimental platform consists of 52 modules and simulators. The task of this thesis includes hardware and software design of USB,GPIB and LAN interface conversion module. In order to facilitate data communication with computer, a multi-function interface module is adopted, which is based on embedded Linux system and ARM9 processor. The work includes the following aspects: first, arm chip and interface module chip selection. ARM9 microprocessor AT91RM9200 and GPIB extension chip NAT9914 and Ethernet physical layer chip DM9161EP. are adopted. Second, the schematic design. The schematic diagram and PCB board of interface module are designed by using Mentor tool software. The conversion from USB interface to LAN interface and from USB interface to GPIB interface is completed respectively. Because ARM and NAT9914 can not be compatible in timing, IO port analog bus timing scheme is adopted. The hardware module is debugged to ensure the normal operation of the hardware function. Thirdly, the embedded Linux construction of interface module. Including the establishment of cross-compilation environment, boot program BootLoader porting Linux kernel migration and file system creation. The fourth part is the optimization of GPIB driver and the design of GPIB device driver. In order to improve the data transmission rate and meet the actual requirements of the experimental platform, the corresponding drivers provided by the USB interface chip manufacturer under Linux are optimized. Secondly, without the GPIB device driver under Linux, the driver of the GPIB device is not available. The driver of GPIB chip NAT9914 is written, and the GPIB interface function based on ARM-Linux is realized. From the time to the completion of the project, the design of the interface conversion module has been tested that the performance is stable, the data transmission ability is good, and it meets the requirements of the experimental platform, and has now entered the stage of batch production.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TP334.7
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