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For more classes visit www.snaptutorial.com ECET 340 Week 1 HomeWork 1 ECET 340 Week 1 iLab 1 ECET 340 Week 2 HomeWork 2 – PowerPoint PPT presentation

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Title: ECET 340 Effective Communication / snaptutorial.com


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ECET 340 Effective Communication /
snaptutorial.com
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Entire Course (All ilabs and Homework)
For more classes visit www.snaptutorial.com   ECE
T 340 Week 1 HomeWork 1 ECET 340 Week 1 iLab
1 ECET 340 Week 2 HomeWork 2 ECET 340 Week 2 iLab
2 ECET 340 Week 3 HomeWork 3 ECET 340 Week 3 iLab
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 1 HomeWork 1 For more classes
visit www.snaptutorial.com   Give three examples
each of internal and external peripheral devices
as referenced to the HCS12 microcontroller and
not an entire PC. (2 points)
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 1 iLab 1 For more classes
visit www.snaptutorial.com   OBJECTIVES To
become familiar with Microcontroller MC9S12
parallel ports and how simple input and output
devices are interfaced through them. To learn how
to program I/O instructions in C language.
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 2 HomeWork 2 For more classes
visit www.snaptutorial.com   1. Where does
program control transfer to when an interrupt
occurs? 2 points 2. Which one of the following
Interrupts has highest priority? 2 points 3. RAM
Vector table addresses 3E52 belongs to which
interrupt? 2 points 4. Before exiting an ISR,
the programmer should use which command? 2 points
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 2 iLab 2 For more classes
visit www.snaptutorial.com   ECET 340 Week 2 iLab
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 3 HomeWork 3 For more classes
visit www.snaptutorial.com   1. Sketch a circuit
that can be used to debounce a pushbutton and
explain how it works. (4 points max) 2. In Figure
7.32 on page 339 of the Huang textbook, if the
row has and the columnsare , which key is
pressed? (2 points max)
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 3 iLab 3a For more classes
visit www.snaptutorial.com   SOLVED ECET 340
iLAB3 OBJECTIVES To learn the basic operation of
a keypad. To understand how to interface a keypad
to a microprocessor. To learn how to program a
keypad driver in C language.
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 4 HomeWork 4 For more classes
visit www.snaptutorial.com   Determine the
conversion time for an ADC0804 (8-bit), where 66
clocks per bit are required, if its clock
frequency is 50 kHz.   2. If an 8-bit SAR has
Vref 10 V, what is the binary value for an
input voltage of 7.28 V?  
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 4 iLab 4 For more classes
visit www.snaptutorial.com   OBJECTIVES To learn
how to use A-to-D converters to digitize signals
from analog input devices. To learn how to write
a C language program that samples the data from
an analog device, digitizes it and formats it for
output on an LCD.
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 5 HomeWork 5 For more classes
visit www.snaptutorial.com   Explain, briefly,
why an analog restoring filter is sometimes used
at the output of a DAC.   2. Given Iref 2 mA
for a DAC1408 IC, find Iout for the input 1110
1110  
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 5 iLab 5 For more classes
visit www.snaptutorial.com   Scenario/Summary This
week's lab covers two areas, conversion of
digital HCS12 signals to an analog format, and
the use of a Serial Peripheral Interface (SPI)
to transfer data, and commands between the
HCS12, and the DAC peripheral.
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 6 HomeWork 6 For more classes
visit www.snaptutorial.com   What are the four
main functions of the HC12 Timer unit?   2. Two
input capture events occur at counts 0x1037 and
0xFF20 of the free-running counter. How many
counts (in decimal) have transpired between these
two events?
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 6 iLab 6 For more classes
visit www.snaptutorial.com   ECET 340 Week 6 iLab
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 7 HomeWork 7 For more classes
visit www.snaptutorial.com   1. The movable part
of the solenoid is the 2 points 2. Why is the
6N139 optoisolator used in the interfaces to
devices such as large motors? 2 points 3.
Calculate the number of steps per revolution for
a stepper motor with a step angle of 7.5
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ECET 340 Effective Communication /
snaptutorial.com
ECET 340 Week 7 iLab 7 For more classes
visit www.snaptutorial.com   ECET 340 Week 7 iLab
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ECET 340 Effective Communication /
snaptutorial.com
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