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Many of the new features I want to put in will require a faster processor and more memory. The next step, still to be completed and covered in a possible future article, is to replace the main processor board with a Rabbit3000 RCM3010 Ethernet module from Rabbit Semiconductor. 44 Issue 152 March 2003 BLOCK DIAGRAM DESCRIPTION The HCS II upgrade is a new board that can plug into the existing HCS II stack. There are two daughter card connectors on the HCS II that allow several circuit board modules to be added—hence, the modular expansion capability described by the HCS II documentation.

Businesses commonly use these systems to direct calls to the appropriate sales or service departments. ABOUT THE HCS It isn’t uncommon for systems to overlap these functional areas, but most systems—say, burglar alarm systems—retain focus on their primary specialty and do a mediocre job of supporting other functions. As interest in home control died down, the incentive to provide commercial devices to homeowners waned. During this time, HCS has done a good job supporting all three of the aforementioned home automation areas.

Second, the monitor program requires extra RAM and ROM. Sometimes it’s linked to the target code itself; otherwise, it runs as a stand-alone program in the target’s ROM. The stand-alone monitor program typically implements a command-line user interface. , HyperTerminal) is sufficient for a debugging session. The output of the monitor program is ASCII data that’s ready for presentation at the dumb terminal. This type of monitor program is usually large, because it has to handle the syntax checking of the commands and format the data before the presentation.

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