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= Embedded Systems =
 
  
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*'''Professor:''' [[Arliones Hoeller]]
 
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*'''Meetings:''' Tuesdays, 13:30 and Fridays 15:40 at Programming Lab.
 
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*'''[https://groups.google.com/forum/?hl=pt-BR#!forum/ste29008 Mailing list]'''
 
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*[[STE-EngTel_(Plano_de_Ensino)| Course Plan (Portuguese only)]]
 
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*[[Cronograma de atividades (STE-EngTel) | Class Schedule (Portuguese only)]]
 
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=Grades=
 
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{| class="wikitable"
 
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!scope="col"| Student
 
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!scope="col"| HW1
 
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!scope="col"| HW2
 
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!scope="col"| HW3
 
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!scope="col"| HW4
 
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!scope="col"| Project
 
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!scope="col"| Final
 
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{| class="wikitable"
 
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!scope="col"| Student
 
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!scope="col"| Lab Reports
 
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!scope="col"| Vision
 
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!scope="col"| Specs
 
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!scope="col"| Impl
 
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!scope="col"| Intr
 
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!scope="col"| Final
 
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* Evaluation Checkpoints:
 
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** Lab Reports: set of reports of lab experiments.
 
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** Vision: Build initial version of report containing the [https://en.wikipedia.org/wiki/Vision_document Product Vision Document].
 
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** Specs: Extend the report by adding system specification, analysis, and test plan.
 
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** Impl: Extend the report describing system implementation and the test results of the tests of initial modules (according to the test plan).
 
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** Intr: Finalize the report by adding the results of the integration of the modules and related tests.
 
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-->
 
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=Lab Experiments=
 
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The experiments in this course are based on the project [[Embedded Systems Experiments for the Telecommunication Engineering Undergraduate Program]].
 
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See this page for the [[Embedded_Systems_Experiments_for_the_Telecommunication_Engineering_Undergraduate_Program#Used_Equipment | Experimental Setup]].
 
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We will use the [https://www.arduino.cc/en/Main/ArduinoBoardUno Arduino Uno] board as hardware platform, and will be developing software in C/C++ using the GNU compiler with the avrlibc.
 
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We have plenty of Arduinos for use in the classroom, but if you can afford, you are encouraged to buy one for yourself to work on the extra-class assignments. They are available for less than R$50. [http://lista.mercadolivre.com.br/arduino-uno-r3 check MercadoLivre].
 
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Arduino's microcontroller is Atmel's ATMega328P. Download its manual [http://www.atmel.com/images/atmel-8271-8-bit-avr-microcontroller-atmega48a-48pa-88a-88pa-168a-168pa-328-328p_datasheet_complete.pdf here].
 
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== Primary Evaluation ==
 
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{| class="wikitable"
 
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!scope="col"| Homework
 
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!scope="col"| Deadline
 
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|-
 
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| Homework 1-3 || May 13th, 2016
 
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| Homework 4-5 || June 10th, 2016
 
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|-
 
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| Final Project Design || June 24th, 2016
 
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| Final Project Implementation || July 22nd, 2016
 
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|}
 
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== Homework ==
 
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{| class="wikitable"
 
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!scope="col"| Homework
 
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!scope="col"| Links
 
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!scope="col"| Deadline
 
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|-
 
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| 1. Led Blinking || [[ESTE: General Purpose Input and Output (GPIO)]] || April 15th, 2016
 
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|-
 
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| 2. Light Keyboard || [[ESTE: GPIO and External Interrupts - part 1]], [[ESTE: GPIO and External Interrupts - part 2]] || April 15th, 2016
 
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|-
 
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| 3. Light Keyboard the Hard Way || [[ESTE: Light Keyboard from Scrach using GNU GCC and Binutils]]  || April 29th, 2016
 
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|-
 
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| 4. ADC and Sensors || [[ESTE: Analog-to-Digital Converter (ADC) and Sensor Reading]], [[ESTE: Analog Temperature Sensor 2 (NTC - Negative Temperature Coeficient)]]  || June 3rd, 2016
 
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|-
 
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| 5. Timer and PWM || [[ESTE: Pulse Width Modulation (PWM)]]  || June 10th, 2016
 
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|}
 
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= Syllabus =
 
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{{collapse top| bg=lightyellow | expandir=true | Unit 01 - Get In: Hands on Microcontroller Software}}
 
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== Unit 01 - Get In: Hands on Microcontroller Software ==
 
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=== Introduction to Embedded Systems ===
 
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*Read chapters 1 and 7 of [http://leeseshia.org/ Lee and Seshia, Introduction to Embedded Systems]
 
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=== Embedded Systems Development: Design Principles ===
 
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*[http://www.lisha.ufsc.br/teaching/esl/esd.pdf Embedded Systems Development: Design Principles]
 
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=== General Porpuse Input Output and External Interrupts ===
 
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*[http://www.lisha.ufsc.br/teaching/esl/io.pdf I/O Basics]
 
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*[[ESTE: General Purpose Input and Output (GPIO) | Lab 01: GPIO - Hello LED]]
 
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*[[ESTE: GPIO and External Interrupts - part 1 | Lab 02: GPIO Interrupts]]
 
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*[[ESTE: GPIO and External Interrupts - part 2 | Lab 03: More GPIO Interrupts]]
 
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=== Serial Communication ===
 
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*Read chapter 10 of [http://leeseshia.org/ Lee and Seshia, Introduction to Embedded Systems]
 
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*[[ESTE: UART - Serial Communication | Lab 04: UART - Serial Communication]]
 
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=== Input/Output Buffers ===
 
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*Read chapter 5 of [http://www.marilynwolf.us/CaC3e/ Wolf, Computers as Components]
 
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*[[ESTE: UART - Interrupts and Circular Buffer | Lab 05: UART - Interrupts and Circular Buffer]]
 
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=== Analog-to-Digital Conversion ===
 
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*Read chapter 7 (sections 1 and 2) of [http://leeseshia.org/ Lee and Seshia, Introduction to Embedded Systems]
 
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*[[ESTE: Analog-to-Digital Converter (ADC) and Sensor Reading | Lab 06: Analog-to-Digital Converters]]
 
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*[[ESTE: Analog Temperature Sensor 2 (NTC - Negative Temperature Coeficient) | Lab 07: NTC - Negative Temperature Coeficient]]
 
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=== Digital-to-Analog Conversion ===
 
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*Read chapter 7 (section 3) of [http://leeseshia.org/ Lee and Seshia, Introduction to Embedded Systems]
 
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*[[ESTE: Pulse Width Modulation (PWM) | Lab 08: Pulse Width Modulation (PWM)]];
 
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{{collapse bottom}}
 
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{{collapse top| bg=lightyellow | expandir=true | Unit 02 - Get Right: Introduction to Real-Time Systems}}
 
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== Unit 02 - Get Right: Introduction to Real-Time Systems ==
 
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=== Multitasking ===
 
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*Read chapter 11 of [http://leeseshia.org/ Lee and Seshia, Introduction to Embedded Systems]
 
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*Read chapter 6 (sections 1-4) of [http://www.marilynwolf.us/CaC3e/ Wolf, Computers as Components]
 
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*Read about [http://www.freertos.org/ FreeRTOS]
 
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=== Real-Time Scheduling ===
 
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*Read chapter 12 of [http://leeseshia.org/ Lee and Seshia, Introduction to Embedded Systems]
 
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*Read chapter 6 (sections 5-12) of [http://www.marilynwolf.us/CaC3e/ Wolf, Computers as Components]
 
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*Lab 08: Real-Time Operationg System
 
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{{collapse bottom}}
 
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{{collapse top| bg=lightyellow | expandir=true | Unit 03 - Get Out: Networked Embedded Systems}}
 
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== Unit 03 - Get Out: Networked Embedded Systems ==
 
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=== Embedded Networks and Multiprocessors ===
 
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*Read chapter 8 of [http://www.marilynwolf.us/CaC3e/ Wolf, Computers as Components]
 
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=== Embedded Networks Seminar ===
 
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*Will be covered by seminars. See Homework 04.
 
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{{collapse bottom}}
 
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{{collapse top| bg=lightyellow | expandir=true | Unit 04 - Get Done: Embedded System Design}}
 
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== Unit 04 - Get Done: Embedded System Design ==
 
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{{collapse bottom}}
 
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<!--
 
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= Homework =
 
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{{collapse top| bg=lightyellow | expandir=true | Homework 01: UART and Input/Output Buffers}}
 
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For this homework, each student must:
 
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#Execute [[ESTE: UART - Interrupts and Circular Buffer | Lab 05: UART - Interrupts and Circular Buffer]].
 
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#Implement an UART Loopback Application with the following characteristics:
 
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##Use the Round-Robin With Interrupts architecture (suggestion: model it using a state-machine);
 
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##Use separate input and output buffers with configurable length;
 
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##Modify the application loop to use a delay to simulate data processing for each received byte (see loop pseudo-code bellow);
 
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#Considering the application as a queue system, where bytes arrive through the serial and leave through the output buffer, analyze this communication problem using the queueing theory utilization theorem:
 
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##Define the worst-case arrival rate (A, in bytes/second, remember that an 8N1 serial will send 1 start bit, 8 data bits, and 1 stop bit);
 
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##Define the worst-case departure rate (D, in bytes/second, assume it is, in theory, the inverse of the processing time);
 
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##Compute the utilization of the queue (U=A/D, meaning that U is the amount of bytes going to the queue every second);
 
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##Build a graph where the x axis is the processing time (P={1,4,8}, ms) and the y axis is the minimum buffer size for a 1-second data transfer busrt;
 
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##Plot in this graph curves for different UART bitrates (B={19200,57600,115200}, bps).
 
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#Finally, run the nine configurations of the experiment (PxB) in your board.
 
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##Compare the experimental results to the analytical model;
 
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##Plot the same graph for the experimental results;
 
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##Discuss and justify the differences and/or similarities of the analytical and experimental results.
 
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*Use [http://docente.ifsc.edu.br/arliones.hoeller/ste/milli_counter.tgz this timer implementation] to build the processing delay;
 
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Pseudo-code for the test application:
 
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<syntaxhighlight lang=c>
 
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void loop() {
 
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  char x = read_from_input_buffer();
 
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  delay(TIME);
 
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  write_to_output_buffer(x);
 
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}
 
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</syntaxhighlight>
 
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Students must hand-in the source code used in the experiment and a short report (2 pages max.) consisting of:
 
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#Introduction (describe the problem being studied)
 
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#Analytical model (equations and graph)
 
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#Experimental Setup (Material and Methods)
 
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#Results (the other graph)
 
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#Discussion
 
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[http://docente.ifsc.edu.br/arliones.hoeller/templates/lab_report-short.zip This template] can be used to build the report.
 
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{{collapse bottom}}
 
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{{collapse top| bg=lightyellow | expandir=true | Homework 02: Analog and Digital Interchanges}}
 
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For this homework, each student must:
 
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#Execute [[ESTE: Analog-to-Digital Converter (ADC) and Sensor Reading | Lab 06: Analog-to-Digital Converters]].
 
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#Execute [[ESTE: Analog Temperature Sensor 2 (NTC - Negative Temperature Coeficient) | Lab 07: NTC - Negative Temperature Coeficient]].
 
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#Implement and calibrate a digital thermometer using the NTC 10KOhm Thermistor using an application with the following characteristics:
 
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##Use the Round-Robin With Interrupts architecture (suggestion: model it using a state-machine);
 
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##Use an ADC buffer to store ADC conversions;
 
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##Implement the Steinhart-Hart model for the Thermistor reading and calibrate it;
 
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##Implement the Beta model for the Thermistor reading and calibrate it;
 
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#Compare the precision of both models and write a report containing:
 
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##Introduction (describe the problem being studied)
 
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##Analytical models (equations and graphs)
 
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##Experimental Setup (Material and Methods)
 
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##Results (experimental graphs)
 
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##Discussion
 
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[http://docente.ifsc.edu.br/arliones.hoeller/templates/lab_report-short.zip This template] can be used to build the report.
 
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{{collapse bottom}}
 
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{{collapse top| bg=lightyellow | expandir=true | Homework 03: Real-Time Operating System}}
 
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{{collapse bottom}}
 
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{{collapse top| bg=lightyellow | expandir=true | Homework 04: Embedded Networks}}
 
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*In groups of two, students must choose one of the papers bellow and present a seminar during class. Students must:
 
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**Hand-in to the Professor an one-page abstract of the paper (72 hours before presentation)
 
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**Publish for the audience a set of slides (24h before presentation)
 
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**Present a talk on the paper that must last between 25 and 30 minutes
 
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*Papers:
 
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**Group 1: Thiago Werner e Elton Broering
 
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***Khanafer, M.; Guennoun, M.; Mouftah, H.T., "[http://dx.doi.org/10.1109/SURV.2013.112613.00094 A Survey of Beacon-Enabled IEEE 802.15.4 MAC Protocols in Wireless Sensor Networks]", in Communications Surveys & Tutorials, IEEE , vol.16, no.2, pp.856-876, Second Quarter 2014.
 
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**Group 2: Jean Sant'Ana e Danilo Bedaque
 
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***Galli, S.; Scaglione, A.; Zhifang Wang, "[http://dx.doi.org/10.1109/JPROC.2011.2109670 For the Grid and Through the Grid: The Role of Power Line Communications in the Smart Grid]", in Proceedings of the IEEE , vol.99, no.6, pp.998-1027, June 2011.
 
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**Group 3: Thiago Bonotto e Tiago Teixeira
 
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***Khazali, I.; Boulais, M.; Cole, P., "[http://dx.doi.org/10.1109/DASC.2009.5347574 AFDX software network stack implementation — Practical lessons learned]", in Digital Avionics Systems Conference, 2009. DASC '09. IEEE/AIAA 28th , vol., no., pp.1.B.5-1-1.B.5-10, 23-29 Oct. 2009.
 
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***Kemayo, G.; Benammar, N.; Ridouard, F.; Bauer, H.; Richard, P., "[http://dx.doi.org/10.1109/ETFA.2015.7301463 Improving AFDX end-to-end delays analysis]", in Emerging Technologies & Factory Automation (ETFA), 2015 IEEE 20th Conference on , vol., no., pp.1-8, 8-11 Sept. 2015.
 
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{{collapse bottom}}
 
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Edição atual tal como às 22h50min de 3 de março de 2020

Disponível em “https://wiki.sj.ifsc.edu.br/index.php?title=STE-EngTel_(página)&oldid=165616”