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[administrator]

If you are an authority on a certain topic, please let us know if you would like to be a moderator for that particular topic.

[jya]

What kind of messages are appropriate here? I have posted information that others may find useful. If I post questions about specific problems, am I likely to get answers? For example, I want to install an interrupt vector to work on a program in development, so I want a way to keep the interrupt routine's xt constant while it is under construction. I know that your helpful staff would offer suggestions in response to direct email. Can I expact an answer here?<p>Jerry<p>----------<br>Engineering is the art of making what you want from things you can get.<p><br>

[abilene]

Jerry,<br>You may post anything that you like. It will be monitored, those areas where we can help you, we will certainly respond to your questions. Hopefully, as our forum grows, questions that are not in our area of expertise will be answered by those who are knowledgeable in that particular field.

[rob]

To keep the xt at the same address, you'll either have to put a piece of code in your source code to nail the definition to a certain part of memory or have another piece of code which is fixed to a certain part of memory and refers to your routine. Another approach is to look at the meta problem: why does the xt need to be fixed in memory? The answer to this question could lead to more solutions.

[jya]

It's just that I read somewhere in the docs that the limited number of EEROM writes could eventually become an issue. I guess that at my age, it's a silly thing to worry about. :o}<p>----------<br>Engineering is the art of making what you want from things you can get.<br>

[administrator]

Is there a website that provides help with the FORTH language and terms for the HC12?

[jya]

Are you asking for web-based Forth tutorials? There are several that I know of. I'm sure you know Rob Chapman's glossary. Prof. J.V. Noble has good general Forth tutorial and illustrative material at http://erwin.phys.virginia.edu/classes/551/. There are other resources. <p>Wait a minute: the administrator _is_ Rob Chapman! Hello!<p>Jerry<p>----------<br>Engineering is the art of making what you want from things you can get.<p>

[rob]

To avoid using up the Flash EEPROM resource with too many writes for the interrupt vector, point it into the byte writable EEPROM and then just change that EEPROM all the time. Its lifespan is way longer and it is byte writable.<br>

[rob]

All the words in Max-FORTH versions 3.5 for the HC11 and 5.0 for the HC12 are documented at:<p>http://www.ee.ualberta.ca/~rchapman/MFwebsite/V50/Alphabetical/Brief/index.html<p>The manual for Max-FORTH which includes basic explanations of how to get started is available at:<br>http://www.compusmart.ab.ca/rc/Pobox/PoBox.htm<br>and:<br>http://www.compusmart.ab.ca/rc/Pobox/FORTH/<p>Rob is not the administrator, just the moderator.<br>