Docsity
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Docsity AI
Docsity AI
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search for your university

Find the specific documents for your university's exams

Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

EECS145M Microcomputer Interfacing Laboratory Midterm 1, Exams of Microcomputers

Baddi University of Emerging Sciences and TechnologiesMicrocomputers

The cover page and problem statements for midterm 1 of the eecs145m: microcomputer interfacing laboratory course at the university of california. The problems involve analyzing the functionality of various digital circuit components and designing an ultrasonic ranging system.

Typology: Exams

2012/2013

Uploaded on 03/22/2013

satayu
satayu 🇮🇳

4.4

(18)

84 documents

1 / 6

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Name (Last, First) Student ID number
EECS145M 2009 Midterm #1 Page 1 Derenzo/Peng
UNIVERSITY OF CALIFORNIA
College of Engineering
Electrical Engineering and Computer Sciences Department
EECS 145M: Microcomputer Interfacing Laboratory
Spring Midterm #1 (Closed book- equation sheet provided- calculators OK)
Full credit can only be given if you show your work.
Wednesday, February 25, 2009
PROBLEM 1 (30 points) Briefly describe all the inputs and outputs of the following circuit
components and how their outputs depend on their inputs.
1.1 (6 points) Edge-triggered flip-flop.
1.2 (6 points) Transparent latch
pf3
pf4
pf5

Partial preview of the text

Download EECS145M Microcomputer Interfacing Laboratory Midterm 1 and more Exams Microcomputers in PDF only on Docsity!

UNIVERSITY OF CALIFORNIA

College of Engineering Electrical Engineering and Computer Sciences Department EECS 145M: Microcomputer Interfacing Laboratory Spring Midterm #1 (Closed book- equation sheet provided- calculators OK) Full credit can only be given if you show your work. Wednesday, February 25, 2009 PROBLEM 1 (3 0 points) Briefly describe all the inputs and outputs of the following circuit components and how their outputs depend on their inputs. 1.1 (6 points) Edge-triggered flip-flop. 1.2 (6 points) Transparent latch

1.3 (6 points) Sample and hold amplifier

1. 4 (6 points) Tri-state buffer 1. 5 (6 points) A/D converter (12 bit)

PROBLEM 3 (50 points) Design an ultrasonic ranging system to be mounted on the front of a vehicle that continuously determines (1) the distance to any obstacle in front of the vehicle and (2) the relative speed between the vehicle and the obstacle. You have the following components:

  • An system that emits a short (1 ms), narrow-beam ultrasonic pulse and detects the reflected echo. The system is triggered by a digital low-to-high edge. It produces a digital output pulse that goes high when the ultrasonic pulse is emitted and goes low when the echo is detected.
  • A computer with display screen, audible warning alarm, digital input/output port, and the ability to read time to the microsecond. 3.1 (10 points) Sketch a diagram of your system, representing each major component as a labeled rectangle.

3 .2 (15 points) List the steps that your computer program must do to (1) trigger the ultrasonic pulses at 5 Hz, (2) determine both distance and velocity, (3) display the numbers on the display screen, and (4) sound the alarm if the current distance and relative speed would result in a collision in one second. 3.3 (5 points) You perform 100 measurements of the echo return time t i with the vehicle stationary and an obstacle at a fixed distance d. Use the random variability of the values of t i in an equation to compute one standard deviation in t i.