2110682 Embedded and Real-Time Systems
Department of Computer Engineering
Faculty of Engineering, Chulalongkorn University
Course duration : Jan-April 2022
Lecturer
: Prabhas Chongstitvatana, Prof.
office Eng build 4,
Floor 18, room 13
email: prabhas at
chula dot ac dot th
Lecture
: Sunday 13.00-16.00 online
The content of the course is a mixed between hardware and software.
Embedded systems are computer systems with special requirement on
constraints such as low power, high integration, real-time. On the hardware
side, it includes embedded processors and low level programming, logic
design, integrated circuits. On the software side, it includes
Operating systems scheduling and real-time constraints. Here are the
list of topics:
Introduction to embedded and real-time systems
Microprocessor
Assembly level programming
Memory, Peripherals and Microprocessor interface
Operating systems and task scheduling
Real-time systems and their requirements
Internet of Things
How we learn
We learn by doing both hardware and software. The activities include
embedded system model construction, some programming, and hands-on session.
The assignments will be given out periodically throughout the term. A small
project will be given around midterm. Students must present the results of
their projects. At the second half of the semester, a real hardware
will be presented. Students are assigned to design and implement a
small embedded system. The project will be presented in the class. The
final exam is "open book" and has an element of system design plus some
"pseudo" programming.
Announcement
16 Jan 2022 The class starts.
13 Mar 2022 Midterm project demo
...
Timetable
January
Introduction
Embedded
Processors
Embedded Systems Design
Microprocessors
IOT
board (platform for interrupt programming) demo-rz.txt
example of using IoT board (in Rz): stopwatch
programming with interrupt counting
events
Assembly language S2
version 1: 32-bit processor
example of writing assembly
language: find max
Rz
language and its compiler
logic design Basic Logic
February
Operating systems and task scheduling basic
OS concepts
Multitask-OS (MOS) (in assembly) mos2.txt
(in Rz) mos-rz.txt
lecture from Matt Welsh, Harvard, semaphores.pdf
semaphore: demo from William Stallings, U.
of Queensland
implementing semaphores
example reader-writer mos-rz2.txt
Cooperative
Processes
Cooperative
Multitask OS (CMOS)
RISC-V instruction set
datapath
control unit
RISC-V
assembly language programming
Project discussion
March
Project presentation
Embedded systems practice (Arduino
Board)
Actual hardware: Arduino experiment
peripherals and interface
peripherals
(counter, timer, PWM, step motors, LED display, LCD, UART, USB)
LCD display controller HD44780
digital/analog
conversion (ADC, DAC, MCP4922
code experiment)
I2C bus
RTC experiments DS1307
(polling) (interrupt)
April
memory, memory and
interrupt i/o memory system
design
real-time systems RTOS real-time
scheduling
Embedded Systems
Communication
Internet of Things: Everything
as a service
May
final exam
final project presentation
Homework
... assignment is in MCV
Videos
1) Introduction to Embedded systems: types of embedded systems. https://youtu.be/FCNBOCF4Myo
2) Embedded Systems: constraints, design considerations. https://youtu.be/IBQWSlTKvmM
3) Real-time considerations, design abstraction, hardware vs software.
https://youtu.be/U6Hv92ujSUs
4) Embedded processors, FPGA, IoT board, demo stopwatch. https://youtu.be/xtmkvzBAqrc
5) Multitask operating system: OS concept https://youtu.be/1ViLKdoQ_tI
6) Multitask operation system: Multitask OS https://youtu.be/xfF2vMC5x-0
7) Assembly language (S2) https://youtu.be/A2IBYWVNLTU
8) MOS demonstration https://youtu.be/qJhvgT5Y3yY
9) Cooperative operating system <coming
soon>
10) RISC-V Processor instruction execution https://www.youtube.com/watch?v=iGoyB_0qXYE
11) RISC-V Control unit https://www.youtube.com/watch?v=X17kvp8s2P0
12) RISC-V assembly language programming https://youtu.be/nh3xYrSxn3w
13) Compiling C to RISC-V assembly language https://youtu.be/AsDMXXKgvpU
16) Peripherals part 1/4: system on chips, counter and timers https://youtu.be/zNv3vxFRyeo
17) Peripherals part 2/4: example Reaction timer, watchdogs https://youtu.be/e5xiqw7pFMI
18) Peripherals part 3/4: UART, LED display https://youtu.be/yYlNRgmMV2M
19) Peripherals part 4/4: motor controls, LCD controller https://youtu.be/GTmUMa8VGtE
20) Digital/Analog converter part 1/3: general theory https://youtu.be/krx1w6NHFWM
21) Digital/Analog converter part 2/3: experiment https://youtu.be/S5x0DqlxK7E
22) Digital/Analog converter part 3/3: demonstration https://youtu.be/VmAOpFbgKhA
23) I2C bus https://youtu.be/H6yizZikGEI
24) RTC experiment part 1/2: polling mode https://youtu.be/F1G6IIumyG8
25) RTC experiment part 2/2: interrupt mode https://youtu.be/Q0pQgPp_RjQ
14) Real-time scheduling part 1/2: scheduling, earliest deadline
first https://youtu.be/YcQ32yjaYBg
15) Real-time scheduling part 2/2: scheduling examples https://youtu.be/jggQHbj14LM
Recommended Textbooks
1. Philip Koopman, Better Embedded System Software, Drumnadrochit
Press, 2010, ISBN-10: 0-9844490-0-0.
2. Ball S, Embedded Microprocessor Systems: Real World Design 2nd
edition, Newnes 2000
3. Vahid F, Givargis T, Embedded System Design: A Unified Hardware/Software
Introduction, Wiley 2002
4. Kopetz H, Real-Time Systems: Design Principles for Distributed Embedded
Applications, Kluwer 1997
Additional Materials
Transistor
level simulation of an antique CPU. 6502 is used in the iconic Apple
II machine.
http://visual6502.org/JSSim/index.html
Computer Organization and Design: The hardware/software interface
(RISC-V edition), D. Patterson, J. Hennessy, Morgan Kaufman, 2018. link
to Amazon
RISC-V Instruction Set Manual v.2.2 2017
Course Assessment
Assignments 10%
Mid project 30%
Final project
30%
Final
exam
30%
Tools
IoT board: Rz compiler, S21 assembler, simulator (with MOS and
input): iot-rz-19.zip
s21 tools : assembler and simulator s21-3.zip
rz3.6.1 compiler with s21 assembler and simulator rz361-2.zip
MOS in Rz mos-rz.txt
MOS with semaphore mos-rz2.txt
LogicWork5 tutorial
Arduino 1.0.5 boards.txt (configuration file) ET-SERVO ET-LCDHC595
(project files)
Venus, RISC-V online interpreter
Compiler Explorer, RISC-V compiler on the
web (select "rv32gc gcc")
Acknowledgement
Slides and presentations are kindly permitted by Setha Pan-gnam, Chalermek
Intanagonwiwat, Krek Piromsopa
last update 27 March 2022