Getting Started with Secure Embedded Systems: Developing IoT Systems for micro:bit and Raspberry Pi Pico Using Rust and Tock

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

A. Radovici, I. CulicGetting Started with Secure Embedded Systemshttps://doi.org/10.1007/978-1-4842-7789-8_7

7. Userspace Applications Development

Alexandru Radovici¹   and Ioana Culic¹

(1)

Wyliodrin, Bucharest, Romania

 

For a process to interact with the Tock kernel, which includes the drivers, it needs to make a system call. The Tock architecture is built around seven such system calls: yield, subscribe, command, read-write allow, read-only allow, memop, and exit. In a nutshell, any application that we aim to run on top of the Tock kernel needs to make these calls to access the resources like peripherals, storage space, or sensors.

However, including the system ...