ECET 340 Inspiring Minds/newtonhelp.com

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ECET 340 Inspiring Minds/newtonhelp.com
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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Entire Course (All ilabs and Homework)
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• For more course tutorials visit
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• ECET 340 Week 1 HomeWork 1
• ECET 340 Week 1 iLab 1
• ECET 340 Week 2 HomeWork 2

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 1 HomeWork 1
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• 1. 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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• 2. Given the requirements of each signals
  destination must match the capabilities of the
  signals source, name some of the electrical
  signal parameters that must be considered when
  designing an interface between two different
  hardware components. (2 points)

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 1 iLab 1
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• 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 Inspiring Minds/newtonhelp.com

• ECET 340 Week 1 iLab LCDs and Keypad (100 Score)
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• Laboratory Title LCDs and Keypad
• Objectives
• 1. To become familiar with LCD initialization
• 2. Displaying messages on the LCD
• 3. Developing a poll routine to capture Keypad
  information

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 2 HomeWork 2
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• 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

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 2 iLab 2
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• ECET 340 Week 2 iLab 2

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 2 iLab Interrupts in C (100 Score)
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• Objectives
• 1.To become familiar with the configuring and
  enabling of interrupts

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 3 HomeWork 3
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• 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)
• 3. In Figure 7.32 on page 339 of the Huang
  textbook, explain why the 10k? resistors ties to
  VCC are required. (2 points max)
• 4. Write down the lines of C code (interrupt
  service routine, ISR) that generates an interrupt
  when Port H pin 0 becomes a logic 1. Within
  this ISR, disable interrupts, clear the interrupt
  flag, then enable

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 3 iLab 3
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• SOLVED ECET 340 iLAB3
• OBJECTIVES
• To learn the basic operation of a keypad.
• To understand how to interface a keypad to a
  microprocessor.

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ECET 340 Inspiring Minds/newtonhelp.com

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• ECET 340 Week 3 iLab Timers in C (100 Score)
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• Objectives
• 1.To become familiar with the configuring and
  enabling of timers
• 2.Using the timer counter

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 4 HomeWork 4
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• 1. Determine the conversion time for an ADC0804
  (8-bit), where 66 clocks per bit are required, if
  its clock frequency is 50 kHz.
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• 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 Inspiring Minds/newtonhelp.com

• ECET 340 Week 4 iLab 4
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• I. OBJECTIVES
• To learn how to use A-to-D converters to digitize
  signals from analog input devices.

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 4 iLabEvent Counter and DACs in C
  (100 Score)
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• Objectives
• 1.Become familiar with the configuring and
  enabling of the event counter.

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 5 HomeWork 5
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• 1. Explain, briefly, why an analog restoring
  filter is sometimes used at the output of a DAC.
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• 2. Given Iref 2 mA for a DAC1408 IC, find Iout
  for the input 1110 1110
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• 3. Find the number of discrete voltages output by
  a 12-bit DAC. Show work.
• 4. Use the internet to locate the data sheet for
  an MC1408 DAC. From it find, for the MC1408-7
  version, the following
• a. The settling time
• b. Accuracy at full scale output current (1.99
  mA), 25ºC

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ECET 340 Inspiring Minds/newtonhelp.com

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• ECET 340 Week 5 iLab 5
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• 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

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 5 iLab Analog to Digital Conversion
  in C (100 Score)
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• Objectives
• 1.To become familiar with the configuring and
  enabling of the analog-to-digital converter

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 6 HomeWork 6
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• 1. What are the four main functions of the HC12
  Timer unit?
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• 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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• 3. What is the maximum time possible before the
  free-running counter overflows when the e MHz?
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• 4. Two input capture events occur at 0x1037 and
  0x002A. If the prescaler bits PR210 are set
  to 101 and the e clock is 24 MHz, how much time
  as transpired between the two events?
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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 6 iLab 6
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• ECET 340 Week 6 iLab 6

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ECET 340 Inspiring Minds/newtonhelp.com

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• ECET 340 Week 6 iLab Asynchronous Serial
  Communications in C (100 Score)
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• Objectives
• 1. To become familiar with the configuring and
  enabling of serial communication transmitter
• 2. To configure the microcontroller to receive
  serial communications from another device
• 1

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 7 HomeWork 7
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• 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. 2
  points
• 4. How is stepper motor speed controlled? State
  any two ways a program can do this. 2 points

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 7 iLab 7
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• ECET 340 Week 7 iLab 7

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ECET 340 Inspiring Minds/newtonhelp.com

• ECET 340 Week 7 iLab HVAC Automatic Temperature
  Controller (100 Score)
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• Title HVAC Controller
• I. OBJECTIVES
• 1.To become familiar with the thermistor
• 2.To use integrated modular programming
  techniques in developing the project

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ECET 340 Inspiring Minds/newtonhelp.com