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KVM: A Small Java Virtual Machine for J2ME

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Sun's K Virtual Machine gives embedded developers a virtual kick in the pants. KVM makes it possible to, for the first time, run Java programs on any 16-bit processor with 128KB of available memory.

Introduction to Priority Inversion

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When tasks share resources, as they often do/must, strange things can and will happen. Priority inversions can be particularly difficult to anticipate. A basic understanding of the problem is key.

How Endianness Works: Big-Endian vs. Little Endian

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Which is the most convenient end on your system? The choices are big endian and little endian.

Some human languages are read and written from left to right; others from right to left. A similar issue arises in the field of computers, involving the representation of numbers.

Introduction to Watchdog Timers

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For those embedded systems that can't be constantly watched by a human, watchdog timers may be the solution.

Introduction to Pulse Width Modulation (PWM)

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Pulse width modulation (PWM) is a powerful technique for controlling analog circuits with a processor's digital outputs. PWM is employed in a wide variety of applications, ranging from measurement and communications to power control and conversion.

Types of Memory in Embedded Systems

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SRAM or DRAM? EEPROM or flash? What types of memory will you use in your next embedded systems design?

How to Implement Internet Protocol (IP) in C

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The Internet Protocol (IP) is the glue that holds an internet together. Here's a compact implementation of the IP layer for embedded C programmers.

A Glossary of Open Source Legal Terms

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If you are considering using software developed by others, such as Linux, within your embedded system, you'll likely need an intellectual property lawyer to read the license agreements such as GPL. Here's a brief glossary of the licensing terminology that's enough to get you started.

Fast Accurate Memory Test Code in C

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If ever there was a piece of embedded software ripe for reuse it's the memory test. This article shows how to test for the most common memory problems with a set of three efficient, portable, public-domain memory test functions.

Address Resolution Protocol (ARP)

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The address resolution protocol provides a necessary bridge between physical and logical addresses on a TCP/IP network.

Every system on a TCP/IP network has two addresses, one physical and one logical. The address resolution protocol (ARP) provides a necessary bridge between these two addresses.

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