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页数:5页
时间:2019-04-29
《嵌入式技术试卷a卷》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、学院、系专业班级学号姓名······························密································封·······························线···································《嵌入式技术》期末考试试卷一、填空题(30分,每空1分)1、ARM的V4T版本以上一般都支持两类指令集,它们分别是_____________和____________。2、ARM处理器的工作模式有7种,分别是_______________、_____________、___________
2、___、_____________、______________、_____________和______________模式。3、ARM处理器有37个_____位长的寄存器,包括30个通用寄存器、6个__________和1个__________。4、ARM处理器复位后,PC的地址通常是________,初始的工作模式是______________。5、编译链接代码时,有两种存储代码和数据的字节顺序,一种是________格式,另外一种是__________格式。6、构建嵌入式系统开发环境的工具链有多种,其中开放源代码的工具链是________________。7、通
3、知编译器产生ARM代码的伪操作是______________。8、S3C2410的内核工作电压是_______伏,存储器的工作电压是_________伏。9、JTAG接口的连接有两种标准,即_______针接口和________针接口。10、RS232C标准采用负逻辑方式,标准逻辑“1”对应___________伏特,标准逻辑“0”对应______________。11、嵌入式交叉开发环境由__________和__________两套计算机系统构成。12、TFTP是简单_______协议。13、Linux内核的配置编译都是由顶层目录的___________整体管理的。
4、14、Linux内核源代码顶层目录中arch/内存储______________相关代码。15、PWM是一种脉冲宽度调制技术,通常可以通过改变PWM信号的____________来实现对设备的控制。共5页第5页学院、系专业班级学号姓名······························密································封·······························线···································二、简答题(30分,每小题5分)1、从技术角度看嵌入式系统的定义是什么?2、嵌入
5、式操作系统有哪些特点?3、SDRAM的特点与作用是什么?共5页第5页学院、系专业班级学号姓名······························密································封·······························线···································4、请对NOR型Flash和NAND型Flash的接口方式和读写性能进行对比。5、BootLoader在嵌入式系统中完成哪些主要工作?6、JTAG接口有那些主要功能?共5页第5页学院、系专业班级学号姓名··········
6、····················密································封·······························线···································三、汇编指令题(20分,每小题4分)1、R0初值为0,请给出下列指令执行后R0的值。MOVR0,R0;R0=____________MVNR0,R0;R0=___________2、说明指令STMIAR12!,{R0-R11}的操作功能。3、写一条ARM指令,完成操作R1=R2*8。4、用BIC指令清除R0中的位0、1、3,保持其余
7、的不变。5、指出ADDGER3,R3,#1的操作功能。四、程序阅读题(10分,每空2分)请在程序中横线部分添加上注释。AREAWord,CODE,READONLYnumEQU20;_______________________ENTRYstartLDRr0,=src共5页第5页学院、系专业班级学号姓名······························密································封·······························线·························
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