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rapid development of the market economy environment to explore public servants ' duty consumption monetization reform has provided a good foundation. The socialization of rear service work has been launched, and rapid progress in some places and departments, duty consumption monetization of carrier and approach to management has been resolved. Third, in recent years, exploring the monetization of duty consumption has made some progress, have gained some experience and can provide reference to the comprehensive reform of the system of public servants ' duty consumption further. Implementing an "honest canteen", standardize official entertaining management; enhancing the telecommunication expense management; elimination of County travel and countryside subsidies; research "village officials" capitalization management of corporate spending, and so on. Finally, group ...
采购的食品原料及成品必须色、香、味、形正常,不采购腐败、变质、有毒有害、霉变生虫、过期、混有异物或感官性状异常及其他不符合卫生标准要求的食品。
plenary session, each session of the Central Committee of national institutions and personnel problems have been arranged, you can concentrate on national development and reforms. Previous plenary session is often branded with a central leading collective, often by looking at the third plenum of the initiative to found the current central leadership collective governance characteristics. From the analysis of the process of economic reform in China, plenary session, 12 session, 14, 16 plenary session have programmatic meaning, respectively, marking the four stages of China's economic reform, and that the start-up phase of reform, reform, construction phase and perfecting the Socialist market economy framework stage of socialist market economy. Previous plenary session topics proposed to the third plenary session of "taking class struggle as the key link," shifted to socialist modernization; 12 session marked the change from rural to urban, established with public
ownership as the Foundation of a planned commodity economy; 13 session at a time when both the old and the new system change, governance and rectify the economic order; 14 ... Fair and efficient and authoritative Socialist judicial system, safeguard the people's interests. Legal authority to uphold the Constitution, deepening the reform of administrative law enforcement, ensure that the right to exercise judicial power independently and impartially according to law the prosecution, perfecting the running mechanism of judicial power, improve the system of judicial protection of human rights. Plenary session, Affairs the right to adhere to the system, and let the people authority to let the power run in the Sun, is shut up in a cage of the system power policy. Decision Science, implementation should be constructed strong, supervise the running of powerful system, improve the system of punishing and preventing corruption, promoting political integrity, and strive to achieve
cadres ' honest and Government integrity, clean politics. To form a scientific and effective coordination of power restriction and mechanisms to strengthen anti-corruption institutional innovation and institutional protection, sound improvement style normal system. Plenary session, building a socialist culture in China, enhancing national cultural soft power, must adhere to the orientation of advanced Socialist culture, adhere to the development of Socialist culture with Chinese characteristics, adhere to the people-centred work-oriented, further deepening reform of culture. To improve the cultural management system, establish and improve the modern market system and building modern public cultural service system, improve the level of culture opening. Plenary session, achieving development results more equitable benefit of all people, we must speed up reform of social programs and solve the issues of concern to the people the most direct and real interest, and better
meet the needs of the people. To deepen education reform, improve institutional mechanisms for the
嵌入式系统设计题库
注意:考试时,每个人的题都不一样,大概一共 30(选择题、填空题两种)个题,约一个
小时的时间,题的数据、答案排列顺序会发生改变,切忌不能死记答案,不然会留下遗憾。
一、 单项选择题(在备选答案中只有一个是正确的,将它选出填入空格中,每小题 1 分,
共 20 分)
1、在CPU和物理内存之间进行地址转换时,( B)将地址从虚拟(逻辑)地址空间映射到物
理地址空间。
A.TCB B.MMU C.CACHE D.DMA
2、进程有三种状态:( C)。
A.准备态、执行态和退出态 B.精确态、模糊态和随机态
C.运行态、就绪态和等待态 D.手工态、自动态和自由态
3、以下叙述中正确的是(C)。
A.宿主机与目标机之间只需要建立逻辑连接即可
B.在嵌入式系统中,调试器与被调试程序一般位于同一台机器上
C.在嵌入式系统开发中,通常采用的是交叉编译器
D.宿主机与目标机之间的通信方式只有串口和并口两种
4、中断向量是指(C)。
A.中断断点的地址 B.中断向量表起始地址
C.中断处理程序入口地址 D.中断返回地址
5、在微型计算机中,采用中断方式的优点之一是(C)。
A.简单且容易实现 B.CPU可以不工作
C.可实时响应突发事件 D.传送速度最快
6、在ARM处理器中,(A)寄存器包括全局的中断禁止位,控制中断禁止位就可以打开或者
关闭中断。
A.CPSR B.SPSR C.PC D.IR
7、嵌入式系统的三要素下面哪一个不是:( B )。
A、嵌入 B、存储器
C、专用 D、计算机
8、若 R1=2000H,(2000H)=0x28,(2008H)=0x87,则执行指令 LDR R0,[R1,#8]!后 R0
的值为( )。
A、 0x2000 B、0x28
C、 0x2008 D、0x87
9、μCOS-II 操作系统属于( B )。
A、顺序执行系统 B、占先式实时操作系统
C、非占先式实时操作系统 D、分时操作系统
10、ARM 寄存器组有( C )个状态寄存器。
A、7 B、32
rapid development of the market economy environment to explore public servants ' duty consumption monetization reform has provided a good foundation. The socialization of rear service work has been launched, and rapid progress in some places and departments, duty consumption monetization of carrier and approach to management has been resolved. Third, in recent years, exploring the monetization of duty consumption has made some progress, have gained some experience and can provide reference to the comprehensive reform of the system of public servants ' duty consumption further. Implementing an "honest canteen", standardize official entertaining management; enhancing the telecommunication expense management; elimination of County travel and countryside subsidies; research "village officials" capitalization management of corporate spending, and so on. Finally, group ...
18 session to be held in Beijing from November 9, 2013 to 12th. 35 years ago blew the third plenary session of the reform and opening up in the spring breeze, changed, affect the world; today, 35 years later, in the eyes of the nation and the world expect, again to reform mark China, ushered in the 18 session. XI General Secretary pointed out that China's reform has entered a crucial period and the Sham Shui Po District, must be based on greater political courage and wisdom, lose no time in deepening reform in important fields. Dares to crack a hard nut, dares to question the Rapids, which dares to break the barrier of ideas, and dare to benefit cure barriers. Deepening reform and opening up is on schedule to achieve institutional safeguards of the moderately well-off. Under the "five in one" the General layout of socialist modernization requirements, 18 session of the decision was a "five in one" and the improvement of overall scheme of reform, will promote an integrated and
coordinated economic, political, cultural, social and ecological civilization construction of the five reforms and the party's construction in the area of institutional reform. The "five in one" programme is to achieve a comprehensive reform of institutional guarantees for objectives of build a well-off society, the smooth progress of the construction of a well-off society and reform the objectives of the programme. One, holding time and place importance on November 9, 2013 to the 18 session of the 12th Beijing since 1978, 35, have been 7 plenary session, each time on major issues of political and economic life of the country has made important deployment. In accordance with PRC political practice, often at every session of the CPC Central Committee in a plenary session was held immediately after the party's Congress, on the theme "personnel", discussing election Central's top leaders, such as the election of the Standing Committee of the political Bureau, through the Central
Committee members, decisions, such as members of the Central Military Commission. The second plenary session, is held in two sessions before the general election, mainly to discuss a new State personnel issues. But by the third
采购的食品原料及成品必须色、香、味、形正常,不采购腐败、变质、有毒有害、霉变生虫、过期、混有异物或感官性状异常及其他不符合卫生标准要求的食品。
plenary session, each session of the Central Committee of national institutions and personnel problems have been arranged, you can concentrate on national development and reforms. Previous plenary session is often branded with a central leading collective, often by looking at the third plenum of the initiative to found the current central leadership collective governance characteristics. From the analysis of the process of economic reform in China, plenary session, 12 session, 14, 16 plenary session have programmatic meaning, respectively, marking the four stages of China's economic reform, and that the start-up phase of reform, reform, construction phase and perfecting the Socialist market economy framework stage of socialist market economy. Previous plenary session topics proposed to the third plenary session of "taking class struggle as the key link," shifted to socialist modernization; 12 session marked the change from rural to urban, established with public
ownership as the Foundation of a planned commodity economy; 13 session at a time when both the old and the new system change, governance and rectify the economic order; 14 ... Fair and efficient and authoritative Socialist judicial system, safeguard the people's interests. Legal authority to uphold the Constitution, deepening the reform of administrative law enforcement, ensure that the right to exercise judicial power independently and impartially according to law the prosecution, perfecting the running mechanism of judicial power, improve the system of judicial protection of human rights. Plenary session, Affairs the right to adhere to the system, and let the people authority to let the power run in the Sun, is shut up in a cage of the system power policy. Decision Science, implementation should be constructed strong, supervise the running of powerful system, improve the system of punishing and preventing corruption, promoting political integrity, and strive to achieve
cadres ' honest and Government integrity, clean politics. To form a scientific and effective coordination of power restriction and mechanisms to strengthen anti-corruption institutional innovation and institutional protection, sound improvement style normal system. Plenary session, building a socialist culture in China, enhancing national cultural soft power, must adhere to the orientation of advanced Socialist culture, adhere to the development of Socialist culture with Chinese characteristics, adhere to the people-centred work-oriented, further deepening reform of culture. To improve the cultural management system, establish and improve the modern market system and building modern public cultural service system, improve the level of culture opening. Plenary session, achieving development results more equitable benefit of all people, we must speed up reform of social programs and solve the issues of concern to the people the most direct and real interest, and better
meet the needs of the people. To deepen education reform, improve institutional mechanisms for the
C、6 D、37
11、C++源程序文件的默认扩展名为( A )。
A、cpp B、exe
C、obj D、lik
12、与十进制数 254 等值的二进制数是( A )。
A、 B、
C、 D、
13、整流电路是利用二极管的( A ) 特性。
A、单向导电 B、稳压
C、保护 D、降压
14、若某数 x 的真值为 –0.1010,在计算机中该数表示为 1.0110,则该数所用的编码为(
B )。
A、原码 B、补码
C、反码 D、移码
解释:0.1011 为正数,补码与原码真值一致。仍为 0.1011。
-0.0101 为负数,补码为 1.1011。
负数补码求法:一种简单的方式,符号位保持 1 不变,数值位从右边数第一个 1 及其
右边的 0 保持不变,左边安位取反。
另外一种方法,数值位按位取反,末位加 1,符号位保持不变。
-0.1101(二进制)的补码是多少?请写出详细过程。
负数,所以标志位是 1
补码是原码取反再末位加一 即 0.0010+1=0.0011
最后,补码是——1.0011
15、在下列 ARM 处理器的各种模式中,( D )模式有自己独立的 R8-R14 寄存器。
A、系统模式(System) B、终止模式(Abort)
C、中断模式(IRQ) D、快中断模式(FIQ)
16、( B )不是进程和程序的区别。
A、程序是一组有序的静态指令,进程是一次程序的执行过程
B、程序只能在前台运行,而进程可以在前台或后台运行
C、程序可以长期保存,进程是暂时的
D、程序没有状态,而进程是有状态的
17、NFS 是( C ) 系统。
rapid development of the market economy environment to explore public servants ' duty consumption monetization reform has provided a good foundation. The socialization of rear service work has been launched, and rapid progress in some places and departments, duty consumption monetization of carrier and approach to management has been resolved. Third, in recent years, exploring the monetization of duty consumption has made some progress, have gained some experience and can provide reference to the comprehensive reform of the system of public servants ' duty consumption further. Implementing an "honest canteen", standardize official entertaining management; enhancing the telecommunication expense management; elimination of County travel and countryside subsidies; research "village officials" capitalization management of corporate spending, and so on. Finally, group ...
18 session to be held in Beijing from November 9, 2013 to 12th. 35 years ago blew the third plenary session of the reform and opening up in the spring breeze, changed, affect the world; today, 35 years later, in the eyes of the nation and the world expect, again to reform mark China, ushered in the 18 session. XI General Secretary pointed out that China's reform has entered a crucial period and the Sham Shui Po District, must be based on greater political courage and wisdom, lose no time in deepening reform in important fields. Dares to crack a hard nut, dares to question the Rapids, which dares to break the barrier of ideas, and dare to benefit cure barriers. Deepening reform and opening up is on schedule to achieve institutional safeguards of the moderately well-off. Under the "five in one" the General layout of socialist modernization requirements, 18 session of the decision was a "five in one" and the improvement of overall scheme of reform, will promote an integrated and
coordinated economic, political, cultural, social and ecological civilization construction of the five reforms and the party's construction in the area of institutional reform. The "five in one" programme is to achieve a comprehensive reform of institutional guarantees for objectives of build a well-off society, the smooth progress of the construction of a well-off society and reform the objectives of the programme. One, holding time and place importance on November 9, 2013 to the 18 session of the 12th Beijing since 1978, 35, have been 7 plenary session, each time on major issues of political and economic life of the country has made important deployment. In accordance with PRC political practice, often at every session of the CPC Central Committee in a plenary session was held immediately after the party's Congress, on the theme "personnel", discussing election Central's top leaders, such as the election of the Standing Committee of the political Bureau, through the Central
Committee members, decisions, such as members of the Central Military Commission. The second plenary session, is held in two sessions before the general election, mainly to discuss a new State personnel issues. But by the third
采购的食品原料及成品必须色、香、味、形正常,不采购腐败、变质、有毒有害、霉变生虫、过期、混有异物或感官性状异常及其他不符合卫生标准要求的食品。
plenary session, each session of the Central Committee of national institutions and personnel problems have been arranged, you can concentrate on national development and reforms. Previous plenary session is often branded with a central leading collective, often by looking at the third plenum of the initiative to found the current central leadership collective governance characteristics. From the analysis of the process of economic reform in China, plenary session, 12 session, 14, 16 plenary session have programmatic meaning, respectively, marking the four stages of China's economic reform, and that the start-up phase of reform, reform, construction phase and perfecting the Socialist market economy framework stage of socialist market economy. Previous plenary session topics proposed to the third plenary session of "taking class struggle as the key link," shifted to socialist modernization; 12 session marked the change from rural to urban, established with public
ownership as the Foundation of a planned commodity economy; 13 session at a time when both the old and the new system change, governance and rectify the economic order; 14 ... Fair and efficient and authoritative Socialist judicial system, safeguard the people's interests. Legal authority to uphold the Constitution, deepening the reform of administrative law enforcement, ensure that the right to exercise judicial power independently and impartially according to law the prosecution, perfecting the running mechanism of judicial power, improve the system of judicial protection of human rights. Plenary session, Affairs the right to adhere to the system, and let the people authority to let the power run in the Sun, is shut up in a cage of the system power policy. Decision Science, implementation should be constructed strong, supervise the running of powerful system, improve the system of punishing and preventing corruption, promoting political integrity, and strive to achieve
cadres ' honest and Government integrity, clean politics. To form a scientific and effective coordination of power restriction and mechanisms to strengthen anti-corruption institutional innovation and institutional protection, sound improvement style normal system. Plenary session, building a socialist culture in China, enhancing national cultural soft power, must adhere to the orientation of advanced Socialist culture, adhere to the development of Socialist culture with Chinese characteristics, adhere to the people-centred work-oriented, further deepening reform of culture. To improve the cultural management system, establish and improve the modern market system and building modern public cultural service system, improve the level of culture opening. Plenary session, achieving development results more equitable benefit of all people, we must speed up reform of social programs and solve the issues of concern to the people the most direct and real interest, and better
meet the needs of the people. To deepen education reform, improve institutional mechanisms for the
A、文件 B 磁盘
C、网络文件 D、操作
18、32 位体系结构的 ARM 处理器有 _____ 种不同的处理器工作模式。( C )
A、5 B、6
C、7 D、8
19.( C )是专门用于信号处理方面的处理器,其在系统结构和指令算法方面进行了特殊设
计,使其适合于执行 DSP 算法,编译效率较高,指令执行速度也较高。在数字滤波、FFT、
谱分析等各种仪器上 DSP 获得了大规模的应用。
A.微处理器(Microprocessor Unit, MPU)
B.微控制器(Microcontroller Unit, MCU)
C.嵌入式 DSP (Embedded Digital Signal Processor, EDSP)
D.片上系统(System On Chip,SoC)
E.多核微处理器
20. ARM(Advanced RISC Machines)既可以认为是一个公司的名字,也可以认为是对一种微
处理器体系结构的通称 。1990 年 11 月 ARM 公司成立于英国剑桥,设计了大量高性能、廉价、
耗能低的( A )处理器。
A.RISC B.CISC
21.在计算机体系结构中,( C )表示每条计算机指令执行所需的时钟周期。
A.时钟周期(节拍) B.机器周期 C.CPI D.总线周期
22.Cache 结构中,数据和指令都放在同一个 Cache 中,称为( A )。
A.普林斯顿结构 B. 哈佛结构
23. ( B ) 使得几个指令可以并行执行。
A.超标量(Superscalar)执行 B.流水线(Pipeline) 技术
24.ARM920T 微处理器的指令流水采用了典型的 RISC( B )级流水线结构
A.三 B.五 C.六 D 八
24.( B)存储系统中,字的地址对应的是该字中最高有效字节所对应的地址;半字的地址
对应的是该半字中最高有效字节所对应的地址。也就是说,32 位数据的最高字节存储在低
地址中,而其最低字节则存放在高地址中。
A.小端 B.大端
25.( A )存储模式是 ARM9 处理器的默认模式。ARM9 汇编指令集中,没有相应的指令来选
择是采用大端存储系统还是小端存储系统,但可以通过硬件输入引脚来配置它。
A.小端 B.大端
26. 下面异常中,优先级最高的是( B )
A.数据中止 B.复位 C.未定义指令,SWI D.预取中止 E.FIQ
27. 下面异常中,优先级最高的是( C )
A.未定义指令,SWI B.预取中止 C.FIQ D. IRQ
28.( A )指令集支持 ARM 核所有的特性,具有高效、快速的特点
A.ARM B. Thumb
29. ( B )是在宿主机上编译好目标代码后,通过宿主机到目标机的调试通道将代码下
载到目标机,然后由运行于宿主机的调试软件控制代码在目标机上运行调试。为了方便调试
开发,交叉开发软件一般为一个整合编辑、编译汇编链接、调试、工程管理及函数库等功能
模块的集成开发环境
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