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promotion of employment, form a reasonable and orderly pattern of income distribution, build a more fair and sustainable social security systems, medical and health system reform. The plenary, innovation of social governance, must focus on the maintenance of fundamental interests of the overwhelming majority of the people, maximize factors, enhance social development, improving social governance, the interests of national security, ensure that the people live and work, social stability and order. o improve social governance, stimulating social organization, innovative and effective system of preventing and resolving social conflicts, improving the public security system, set up the National Security Council, national security systems and national security strategy to ensure national security. Plenary session, the construction of ecological civilization, you must establish systems of ecological system, using the system to protect the ecological environment. o improve natural resources asset property right system and use control, red line of delimitation of ecological protection, resources paid use system and ecological compensation system in ecological environment protection management system reform. Plenary session, centering on building a listening party command, can win and having a fine style of the people's army, a strong army under the new situation of the party Goals, restricting the development of national defense and army building is solved outstanding contradictions and problems, innovation and development of military theory, enhance military strategic guidance, improve the military strategy in the new period, building a modern military force system with Chinese characteristics. o deepen the adjustment of personnel system reform in the army, military policy and system reform, promote the development of military and civilian integration depth. Plenary session stressed that comprehensive reform must be to strengthen and improve the party's leadership, give full play to the core role of the party commands the overall situation and coordinating all parties, improving the party's leading water ... Margin. Challenged the leadership of the Communist Party of China, Marxism-Leninism and Mao Zedong thought by Deng Xiao-ping's flag, replaced by three representatives and the harmonic society. The former Communist Party spirit and social cohesion point of almost all political makeover. Characteristics of socialism public ownership is shifting to private ownership, planned regulation and market regulation, the proletarian regime controlled by the elite. Of universal equality, fairness and basic principles of distribution system is socialist society, however after economic monopolized by powerful, vested interests growemployers do not have the same status, hardly seems fair social distribution. State key protection of capital interests rather than the interests of citizens, had been hits the bottom of the proletariat 2013-2014学年第1学期期末试卷A卷浙江科技学院

参考答案及评分标准

考试科目单片机原理及应用考试方式闭完成时限 2小时拟题人审核人批准人 2013年 12 月 21 日理学院三年级应用物理学专业

一、选择题（每空格1.5分，共30分）

1.B 2.A 3.C 4.A 5.B 6.B 7.C 8.C 9.A 10.C 11.C 12.D 13.A 14.A 15.C 16.D 17.D 18.A 19.C 20.B

二、填空题（每空格1分，共20分）

1. 128B， 00—1FH

2．奇偶标志，进位/借位标志 3. 顺序、分支、循环

4. 数据传送、逻辑运算、位运算、控制转移 5. INT0、INT1、T0、T1、串行口，INT0、串行口 6. 查询方式、中断方式

三、简答题（每题6分，共18分）

1．

答：定时值为10ms时，定时器T0工作在方式1时，定时器T0对应的初值是1388H；（2分） TMOD的值是B；（1分） TH0=13H，TL0=88H。（3分） 2．

答：CPU在每个机器周期的S5P2期间顺序采样每个中断源，在下一个机器周期S6区间按优先级顺序查询中断标志，如查询到某个中断定标志为1，将在接下来的机器周期S1期间按优先级进行中断处理，中断系统通过硬件自动将相应的中断矢量地址装入PC，以便进入相应的中断服务程序。（3分）

一旦响应中断，CPU首先置位相应的中断“优先级触发器”，然后由硬件执行一条长调用指令，把当前的PC值压入堆栈，以保护断点，再将相应的中断服务的入口地址送入

bviously, face China's Socialist system, the Communist Party is not the party. In that case, political chaos has been very tight. Is remodeling or reconstruction, is a correction or a stove. Whether to turn right or left, is back to the source or put forward new political ideas. This is to determine the road problems in China, is also the key out of the deep water of the reform of the economic system. After 18, the new Central collective leadership attaches great importance to political orientation. First, the \point, starting from the Central Government's self-restraint, which preaches and pro-image, brought fresh feeling to the community. Secondly, before reform and opening up and reform and opening two periods after non-negative, untying the tangle of the society a long time on this issue. Third, a new generation of party leaders on various occasions to Mao Ze-Dong and Mao Ze-Dong's thought of evaluation has room for manoeuvre, through to the ruling ideology of Mao Zedong thought, is the call of the soul to the Socialist Revolution and construction. Empty talks jeopardize national interests and try again, is an affirmation of Deng Xiao-ping's reform ideas. These strong political signal showing a new generation of political leaders is still keeping to the Socialist road. Four is revisiting the \ng to Mao Ze-Dong's historical cycle of\profile anti-corruption and the importance of the Constitution, reorganization is bad style of officialdom, was to civilize people obey the lawwhile improving the color change of the regime of vigilance. Five is to reform into deeper waters and stressed that top-level design, this is a review on the reform and opening up in the past, is also looking for a way out. Six foreign and Russia closer, the flexible attitude on the issue of the Korean peninsula, Sino-Japanese fishing hardline China on the island out of the \ent\ow profile shadow began to gradually plan development. Signs show that the new leadership began to make a left turn in politics. However, as of right now, not only ideological confusion in the community, the new leadership's thinking is messy. New leaders both stressed the need to implement the Constitution, stressed the need to turn off the power in a cage. Also stresses that Mao Zedong thought cannot be lost, 30 years after the reform and opening up 30 years ago can not deny each other. Both advocate democracy and release \n does not speak of\cal constraints. Neither deny the history of the CPC Central Committee on several issues ...Comrades: today brings together members, mainly in order to provide a platform to Exchange and learn from each other in order to facilitate our work. Just now, we focus on taxation, planning and stability, safety, project construction, typical topics such as private facts presentation and interaction, and towns currently exist in the in-depth analysis of the problems to be solved, to explore new methods to solve the problem. It can be said that summing up the achievement, no grandstanding; analysispromotion of employment, form a reasonable and orderly pattern of income distribution, build a more fair and sustainable social security systems, medical and health system reform. The plenary, innovation of social governance, must focus on the maintenance of fundamental interests of the overwhelming majority of the people, maximize factors, enhance social development, improving social governance, the interests of national security, ensure that the people live and work, social stability and order. o improve social governance, stimulating social organization, innovative and effective system of preventing and resolving social conflicts, improving the public security system, set up the National Security Council, national security systems and national security strategy to ensure national security. Plenary session, the construction of ecological civilization, you must establish systems of ecological system, using the system to protect the ecological environment. o improve natural resources asset property right system and use control, red line of delimitation of ecological protection, resources paid use system and ecological compensation system in ecological environment protection management system reform. Plenary session, centering on building a listening party command, can win and having a fine style of the people's army, a strong army under the new situation of the party Goals, restricting the development of national defense and army building is solved outstanding contradictions and problems, innovation and development of military theory, enhance military strategic guidance, improve the military strategy in the new period, building a modern military force system with Chinese characteristics. o deepen the adjustment of personnel system reform in the army, military policy and system reform, promote the development of military and civilian integration depth. Plenary session stressed that comprehensive reform must be to strengthen and improve the party's leadership, give full play to the core role of the party commands the overall situation and coordinating all parties, improving the party's leading water ... Margin. Challenged the leadership of the Communist Party of China, Marxism-Leninism and Mao Zedong thought by Deng Xiao-ping's flag, replaced by three representatives and the harmonic society. The former Communist Party spirit and social cohesion point of almost all political makeover. Characteristics of socialism public ownership is shifting to private ownership, planned regulation and market regulation, the proletarian regime controlled by the elite. Of universal equality, fairness and basic principles of distribution system is socialist society, however after economic monopolized by powerful, vested interests growemployers do not have the same status, hardly seems fair social distribution. State key protection of capital interests rather than the interests of citizens, had been hits the bottom of the proletariat PC，于是CPU接着从中断服务程序的入口处开始执行。对于有些中断源，CPU在响应中断后会自动清除中断标志。（3分） 3.

答：A/D转换接口中采样保持电路的作用是：能把一个时间边续的信号变换为时间离散的信号，并将采样信号保持一段时间。（3分）

当外接模拟信号的变化速度相对于A/D转换速度来说足够慢，在转换期间可视为直流信

号的情况下，可以省略采样保持电路。（3分）

四、阅读或编写程序（第1题6分，第2题4分，第3题8分，第4题14分，共32分）

1. 解：

MOV 20H,#00H 或 CLR A （3分） MOV 20H, A （3分）

2．

0E7H (4分) 3.

ORG 1000H

MOV DPTR，#7000H （3分） CLR A MOV R0，A

LOOP：MOVX @DPTR,A （3分） DJNZ R0,LOOP

JMP $S （2分） 4．

解：要在P1.0上产生周期为2ms的方波，定时器应产生1ms的周期性定时，定时到对P1.0取反。

要产生1ms的定时，应选择方式1，定时器方式。

TMOD的确定：选择定时器/计数器T0，定时器方式。方式1，GATE不起作用，高4位为0000，TMOD=01H。

TH、TL的确定：单片机的fosc=12MHz，则单片机的机器周期为1ms，1ms=1000ms，计数器的计数初值为65 536-1000，TH0=（65 536-1000）/256，TL0=（65 536-1000）%6。采用中断方式程序如下： #include sbit P1_0=P1^0;

void timer0(void) interrupt 1 using 1 {

P1_0=!P1_0;

TH0=(65536-1000)/256;

TL0=(65536-1000)%6; }

void main(void) {

TMOD=0x01; P1_0=0;

TH0=(65536-1000)/256; TL0=(65536-1000)%6; EA=1; ET0=1; TR0=1;

do{ } while(1); }

计数初值3分，中断子程序6分，主程序5分

ought fresh feeling tdvocate dem; analysis

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