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UM007518-1211 RZK Overview

Zilog Real-Time Kernel: eZ80

CPU

User Manual

RZK Overview

The Zilog Real-Time Kernel (RZK) is a real-time, preemptive multitasking kernel

designed for time-critical embedded applications. It is currently available with Zilog’s

eZ80 family of microprocessors and microcontrollers. The majority of the RZK code is

written in ANSI C and supplied as a C library module. During compilation, you can link

real-time applications with the RZK library. The resulting object is downloaded to the tar-

get platform or placed in ROM. RZK is designed to be used as a C library.

Features of RZK

The features of RZK include:

•

Compact code

•

Rapid context switching between threads

•

Quick interrupt response

•

Preemptive, priority-based and multitasking scheduler

•

Timing support for delays, time-outs and periodic events

•

Time-slicing option with adjustable time slices

•

Priority inheritance facility

•

Highly scalable and configurable options

•

Minimal footprint

•

Device Driver Framework (DDF) and Board Support Package (BSP)

RZK Objects

RZK modules are referred to as objects and are used for real-time application development

as provided below:

•

Threads

•

Message queues

•

Event groups

•

Semaphores

•

Timers

•

Memory as Partitions/Regions

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 39 40

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