PiOS: ARM Timer and Interrupts
For quite some time I've been working on a prototypic operating system, PiOS (previously PilotOS) [1]. I've been writing articles earlier about processes [2][3] and I want to discuss the current state here. Additional to a rewrite of most of the code, so removing the assembler-code and...
PiOS: ARM Timer und Interrupts
Seit einiger Zeit arbeite ich an einem prototypischem Betriebssystem, PiOS ("früher" PilotOS) [1]. Ich habe früher schon einige Artikel über Prozesse [2][3] geschrieben und will nun hier den aktuellen Stand diskutieren. Neben einem Rewrite des Codes, also entfernen quasi aller...
Porting Micropython to Raspberry Pi
This article is in English for I hope it will be useful for someone who tries to port Micropython to new hardware as I do here. Micropython [1] is a very small Python interpreter, which can run on very restricted hardware. The pyboard is based on an STM32-F04 ARM processor,...
PilotOS: Processes 2 (Process states and mutual exclusion)
The last article about processes had a concrete implementation in mind, with this article there is no implementation in PilotOS (yet). Therefore I will write some theory about processes, their states and mutual exclusion. A process is a unit of execution or code, which can be executed....
PilotOS: Processes
PilotOS [1] aims to become a simple operating system for the Raspberry Pi. I use it mainly to learn the ins and outs of operating system development, starting with simple functionality all the way to operating system architecture. In no way is PilotOS meant to be a usable operating system of...
PilotOS: Prozesse
PilotOS [1] soll ein einfaches Betriebssystem für den Raspberry Pi werden. Der Sinn hinter dem Betriebssystem ist hauptsächlich der Wissenszuwachs für mich, und die Einblicke in die Entwicklung von Betriebssystem, angefangen von einfachen Funktionalitäten, bis hin zur...