SS2023¶

Block 1: Linux, and Working With Remote/Embedded Devices ¶

VO	KU	#Units	Topics
2023-02-27		3	Introduction: OS Concepts Overview (from Introduction: Concepts and Terminology) Everything is a file Everything Is A File (Live Demo) (from Introduction: Concepts and Terminology) Reading temperature sensor values (from Linux and OneWire (using DS18B20 Temperature Sensor as Slave)) Intro: sysfs GPIO Processes Processes, Scheduling, Address Spaces (from Introduction: Concepts and Terminology) Process: Arguments, Exit Status (from Processes) The Process Tree (And Environment, And procfs) (from Processes) Homework Working Windows Subsystem for Linux (WSL) installation until next time around.
2023-03-07		3	Introduction: OS Concepts Files and Processes: I/O Blocks Processes Blocking I/O (On A File): What is That? (from Blocking I/O: What Is That?) Blocking I/O: On A Timer? WTF? (from Blocking I/O: What Is That?) Working With The Commandline (The Shell) (from The Shell (Bash - “Bourne Again Shell”)) Commandline Absolute and Relative Paths Special Paths Directory Listings: The ls Command Current Working Directory Creating And Removing Files and Directories
	2023-03-10	3	Working With The Commandline (The Shell) (from The Shell (Bash - “Bourne Again Shell”)) Copying: cp Moving and Renaming: mv Symbolic Links, Hard Links Shell Configuration File: ~/.bashrc Working With The Commandline (The Shell) (from The Shell (Bash - “Bourne Again Shell”)) Exercises (from Exercises: Create/Copy/Move/Remove) Exercise: mkdir Exercise: Create Files (I/O Redirection) Exercise: Copy Files Exercise: Move Files Exercise: Verify, Repeat Exercise: Copy Directory Tree Exercise: Remove Directory Tree Exercise: Funny Stuff
2023-03-17		3	SSH: Secure Shell (from SSH: Secure Shell) SSH: Basics SSH: Public Key Authentication SSH: Secure Copy (scp) SSH File System (sshfs) File System Permissions (from File System Permissions) Permissions: Mode, User and Group Ownership SetUID Programs: passwd, sudo, … Default Permissions: umask
2023-03-31		3	File System Permissions (from File System Permissions) From Exercises: File System Permissions Exercise: Determine Your User Credentials Exercise: Create Group-Shared File Exercise: Create Private Directory Question: Private Directory Exercise: Create Public Directory Question: Public Directory

Block 2: C on Linux: Local and Cross Development ¶

VO	KU	#Units	Topics
2023-04-17		3	Lab Exam Quiz: Linux Basics Toolchain Intro (Local) (from Toolchain, And Cross Development) Toolchain: Basics Zooming In: Separate Compilation, and Linking Statically Object Code Archives/Static Libraries Exercise: Build Software Package (Native)
	2023-04-17	3	Toolchain Intro (CMake) (from Toolchain, And Cross Development) CMake: Local Build Exercise: like above (Exercise: Build Software Package (Native)), only using CMake
	2023-04-21	3	Systems Programming Basics: File I/O Commandline Arguments Linux Systems Programming: Basics File I/O: Basics Homework (until next time - 2023-05-08) Exercise: Copy A File
2023-05-11		3	Homework Recap Talk about solutions from last time’s (2023-04-21) homework Work Environment Github project SSH login on the Pi: `ssh -p 2020 firstname.lastname@jfasch.bounceme.net` Cross Development Cross Development CMake: Cross Build Cross Toolchain Setup Cross Toolchain Setup Homework Recap: Cross Setup Pi toolchain (Cross Toolchain Setup) Cross-build your project On the Pi, copy `/etc/passwd` to `~/passwd-copy` Compare both files using `diff -u` (man -s 1 diff)
	2023-05-12	3	Finish Raspi Cross Toolchain Setup Cross Toolchain Setup Exercise Time Exercise: Read Temperature From Onewire Sensor Homework Please complete the exercise until next time (2023-05-22) Please send me your Github account name (create one if you don’t already have one)

Block 3: C++¶

VO	KU	#Units	Topics
2023-05-22		3	The Spirit Of C (Why C++?) Pointers and Arrays (livehacked: arrays.cpp) Unit Testing (Quick Intro) Unittest: GTest Basics (For completeness only: Unittest: GTest and CMake) (livehacked: unittesting - look into CMakeLists.txt) OO Basics Object Oriented Programming In Good Ol’ C Classes and Objects (livehacked: point.cpp)
	2023-06-01	3	Exercise Clone Github project Setup as described in `README.rst` Find your place in it `bin/` is for programs `lib/` is for library code (e.g. the sensor implementation) `tests/` is for unit tests Exercise: OneWire Sensor Class
2023-06-02		3	Exercise, cont’d Q&A Github project (and CMake) recap Solution (livehacked) sensor-w1.h onewire-temperature-modular.cpp
2023-06-05		3	Discussion: Future Directions PLC state machine (Salloker) Possible OO implementation (TDD?) C++ Standard Library std::filesystem
	2023-06-07	3	Exercises Exercise: ConstantSensor_nopoly (Non-Polymorphic) Exercise: RandomSensor_nopoly (Non-Polymorphic) Exercise: Mocking Switch (Non-Polymorphic) Note: see point.cpp for a sample class implementation.
	2023-06-12	3	Lab Exam Work Clone from Github: https://github.com/jfasch/FH-ECE21-LabExam-2023-06-12.git Prepare according to README (see Github project page) Build as usual Implement requirements: Exercise: Hysteresis_nopoly (Non-Polymorphic) Upload to Moodle Change your current working directory to one above the project’s source root Create a `tar` archive $ tar -j -c -f FH-ECE21-LabExam-2023-06-12.tar.bz2 FH-ECE21-LabExam-2023-06-12/ Upload `FH-ECE21-LabExam-2023-06-12.tar.bz2` to Moodle Attention Please do not build inside the source directory! The build tree must not be part of the uploaded archive If you do, this will severely influence the exam grading!
	2023-06-15	3	Lab Exam recap Work Environment Mr.Felber to show how vscode could solve problems. Discuss, e.g. “Open Folder”. What does that do, as opposed to opening single files? ⟶ understanding your project by trying to comprehend `CMakeLists.txt` ⟶ `${workspaceFolder}` “Build” button. CMake Tools Build with CMake Tools Configuration in `.vscode/settings.json`. Maybe supply a `.vscode/setting.json` that contains paths relative to `${workspaceFolder}`
2023-06-15		3	More C++ Language Features Methods (livehacked: const-and-refs.cpp) References (livehacked: const-and-refs.cpp) Constructors: Member Initialization (livehacked: member-initialization.cpp) C++ Standard Library: `std::vector` Livehacking: vector.cpp Documentation std::vector on cppreference.com) Range Based for Loops: Introduction Homework Using `std::vector` Exercise: std::vector<> Exercise: Filter Odd Elements Exercise: Filter Elements Greater Than 10
	2023-06-19	3	Exercises Recap `std::vector` Exercise: std::vector<> Exercise: Filter Odd Elements Exercise: Filter Elements Greater Than 10 Exercise: AveragingSensor_nopoly (Non-Polymorphic) Pull from our Github project Implement `AveragingSensor_nopoly` in `students/firstname.lastname/lib/` In the toplevel `toolcase/` directory, you’ll find an implementation of `MockSensor_nopoly` You will use that class in your `AveragingSensor_nopoly`. This means that the library in your `lib/` directory depends on the library in the toplevel `toolcase/` directory. Figure out how to specify that dependency to the CMake build system! Hint: the CMake `TARGET_LINK_LIBRARIES()` function is used to specify dependencies. As an example, see your `students/firstname.lastname/bin/CMakeLists.txt` file where a dependency is specified for an executable that is built. You can do this for inter-library dependencies likewise.
	2023-06-23	3	Lab Exam Work Clone from Github: https://github.com/jfasch/FH-ECE21-LabExam-2023-06-23.git Prepare according to README (see Github project page) Build as usual Implement requirements: Exercise: LEDStripeDisplay_nopoly (Non-Polymorphic) Upload to Moodle Change your current working directory to one above the project’s source root Create a `tar` archive $ tar -j -c -f FH-ECE21-LabExam-2023-06-23.tar.bz2 FH-ECE21-LabExam-2023-06-23/ Upload `FH-ECE21-LabExam-2023-06-23.tar.bz2` to Moodle Attention Please do not build inside the source directory! The build tree must not be part of the uploaded archive If you do, this will severely influence the exam grading!

Finish: Written Exam ¶