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How to Use Watchdog Timers Properly when Multitasking

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To keep a watchdog timer from resetting your system, you've got to kick it regularly. But that's not all there is to watchdog science. We will examine the use and testing of a watchdog, as well as the integration of a watchdog into a multitasking environment.

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.

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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