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#Unix Toolbox

This document is a collection of Unix/Linux/BSD commands and tasks which are useful for IT work or for advanced users. This is a practical guide with concise explanations, however the reader is supposed to know what s/he is doing.

##Unix Toolbox revision 14.4

The latest version of this document can be found at http://cb.vu/unixtoolbox.xhtml. Replace .xhtml on the link with .pdf for the PDF version and with .book.pdf for the booklet version. On a duplex printer the booklet will create a small book ready to bind. This XHTML page can be converted into a nice PDF document with a CSS3 compliant application (see the script example). See also the about page.
Error reports and comments are m

STM32 developement on Visual Studio Code

This guide will help you install and setup Visual Studio Code for programming and debugging STM32 boards.

I tested this guide under Arch Linux and Ubuntu 18.04. If you get it to work under other setups, please let me know so I will update the steps with more info.

Warning

If you were using STM32CubeIDE or SystemWorkbench before, you need to convert your projects in order for them to work. The conversion procedure is fully reversible.
Up until the time of writing this guide, it is not possible to use STM32CubeIDE and Visual Studio Code on the same project unless some configuration changes are made on CubeIDE. Besides that, it is reccomended that every person that works on a project runs the same working environment.

	/**
	* @file fsm.c
	* @brief an implementation for a FSM in C, this file contains
	* implementation of definations.
	* License GPLv3+
	* @author Ankur Shrivastava
	*/

	#include "fsm.h"
	#include<stdlib.h>

	/*
	* An implementation of C11 stdatomic.h directly borrowed from FreeBSD
	* (original copyright follows), with minor modifications for
	* portability to other systems. Works for recent Clang (that
	* implement the feature c_atomic) and GCC 4.7+; includes
	* compatibility for GCC below 4.7 but I wouldn't recommend it.
	*
	* Caveats and limitations:
	* - Only the ``_Atomic parentheses'' notation is implemented, while
	* the ``_Atomic space'' one is not.

	#!/usr/bin/python
	#
	# Copyright (C) 2018 Kristian Lauszus, Candela. All rights reserved.
	#
	# Contact information
	# -------------------
	# Kristian Lauszus
	# Web : http://www.lauszus.com
	# e-mail : [email protected]

	Lenovo Thinkcentre M92P
	When booting to USB installer disk installation proceeds as expected
	1962 no operating system found
	When booting into preview mode all disks load without issue, so its not the cable
	Secure Boot option either not present or disabled
	Last time I fixed this by adding a fake line to the boot loader from instructions on the web
	Got a warning during installation about UEFI mode
	Windows Fast Startup disabled

	jfly comment below:

	/*
	Project: Dot matrix clock with NTP server using ESP32
	Board: ESP32 Dev Module (Node32 Lite)

	Connections:
	ESP32 \| Dot Matrix
	RAW - VCC
	GND - GND
	27 - DIN
	26 - CS

	/*
	* In embedded systems, the C programming language is most often the language of choice. For more intensive
	* elements in the system, assembly can be used. Embedded C is distinct from typical C programming in its
	* requirements for efficiency, its limited resources, and its unique hardware problems which are much less common in
	* the majority of C programs. Even still, the language itself is the same, so check out K&R's The C Programming
	* Language and other reference books.
	*
	* Some of the problems central to embedded systems programming:
	* - Memory management
	* - Register access and manipulation