Soalan Teori Etn 504

8/18/2019 Soalan Teori Etn 504

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ETN 504 ©2014 Hak Cipta Kerajaan Malaysia [Lihat halaman sebelah]

TERHAD

TERHAD

NO. KAD PENGENALAN

ANGKA GILIRAN

KOLEJ VOKASIONAL MALAYSIA

BAHAGIAN PENDIDIKAN TEKNIK DAN VOKASIONAL

KEMENTERIAN PENDIDIKAN MALAYSIA

DIPLOMA VOKASIONAL MALAYSIA (TEKNOLOGI ELEKTRONIK)

INDUSTRIAL MICROCONTROLLER ETN 504

SEMESTER 5/2014

PENTAKSIRAN AKHIR TEORI

2 jam

ARAHAN PENTAKSIRAN

1 Tulis nombor kad pengenalan dan angka giliran anda pada petak yang disediakan.

2 Tunjukkan kad pengenalan anda untuk disemak oleh Pengawas Peperiksaan/Pentaksir.

3 Anda perlu berpakaian sesuai mengikut peraturan yang ditetapkan oleh kolej.

4 Baca arahan soalan dengan teliti. Rujuk kepada Pengawas Peperiksaan / Pentaksir

sekiranya terdapat sebarang kekeliruan.

5 Anda tidak dibenarkan berbincang atau berhubung dengan calon lain semasa

peperiksaan.

6 Anda dikehendaki menjawab dalam ruang jawapan yang disediakan pada kertas soalan

ini. Anda boleh meminta kertas jawapan tambahan sekiranya ruang yang disediakan

tidak mencukupi.

7 Jawapan anda hendaklah dihantar bersama dengan kertas soalan ini.

Kertas soalan ini mengandungi 11 halaman bercetak.


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Arahan:

Kertas soalan ini mengandungi 4 soalan. Jawab semua soalan

SOALAN 1

Rajah 1 menunjukkan gambar rajah blok bagi satu daripada mikropengawal yang biasadigunakan .

a) Terangkan maksud mikropengawal. ( 2 Markah )

b) Berikan dua contoh alat elektronik yang menggunakan mikropengawal

( 2 Markah )c) Berpandukan pada Rajah 1 :

(i) CPU merupakan salah satu bahagian di dalam mikropengawal. Terangkan fungsinya.

(ii) Nyatakan tiga bahagian asas yang perlu ada supaya mikropengawal dapat berfungsi.

( 6 Markah )

d) Berikan dua perbezaan antara mikropemproses dan mikropengawal

( 2 Markah )

Rajah 1


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SOALAN 2

a) Berikan 3 jenis bahasa pengaturcaraan. ( 3 Markah )

b) Nyatakan maksud arahan berikut:

(i) MOV A, #17H

(ii) ADD A, #62

(iii) ORL A, #56H

( 3 Markah )

Rajah 2 menunjukkan langkah untuk memprogramkan mikropengawal untuk melaksanakan

tugasan projek.

Rajah 2

c) Berdasarkan Rajah 2, terangkan bagaimana proses memprogramkan mikropengawal boleh

berfungsi.

( 7 Markah )

Target

Program C

atau

BASIC

Target

BoardUSB

Programer

USB

Programer


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SOALAN 3

Rajah 3 menunjukkan satu carta alir yang menggunakan arahan sampukan (interrupt)

untuk membina satu aturcara mikropengawal .

Rajah 3

a. Kaji carta alir pada Rajah 3i. Apakah yang dimaksudkan dengan sampukan (interrupt) dalam mikropengawal.

ii. Namakan 2 jenis sampukan pada mikropengawal.

( 4 Markah )

b. Daftar TMOD (Mod Pemasa) di dalam mikropengawal Intel 8051 mempunyai dua jenis

daftar iaitu Daftar Pemasa 1 dan Daftar Pemasa 2.

Tentukan mod dan pemasa yang dipilih untuk setiap arahan aturcara berikut:

i. MOV TMOD, #01H

ii. MOV TMOD, #20H

iii. MOV TMOD, #12H ( 6 Markah )

c. Bagaimanakah „Real-Time Operating System‟ (RTOS) mengatasi masalah operasi

masa kritikal (time-critical operations) pada „Simple embaded system‟.

( 2 Markah )

SALAH

MULA

PENYATAAN

TAMAT

SYARAT

BETUL


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SOALAN 4

Rajah 4 di bawah menunjukkan litar skematik “Running Light” yang menggunakan sebuah

mikropengawal.

Rajah 4

Berdasarkan Rajah 4

a. Tuliskan satu atur cara yang lengkap yang dapat memaparkan corak pergerakan LED

berbentuk “Running light” dengan sela nyalaan setiap LED selama 1 saat.

(6 Markah)

b. Semasa menguji litar di atas, didapati LED pada keluaran RB4 tidak menyala. Nyata danterangkan dua kemungkinan yang berlaku.

(4 Markah)

c. Terangkan bagaimana cara untuk memperlahankan nyalaan setiap LED.

(2Markah)

KERTAS SOALAN TAMAT

LED7

LED6

LED5

LED4

LED3

LED2

LED1


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RUANG JAWAPAN

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RUANG JAWAPAN

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RUANG JAWAPAN

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Soalan Teori Etn 504