ZBasic Forum

I tried to search for any thing concerning 3.3 volt operation of the ZX devices or interfacing them to 3.3V devices.

I could not get any results searching for 3.3, 3.3v, or any other thing I tried. What must I search on? I thought it would be easy...

twesthoff wrote:What must I search on?

It is interesting that there are no hits searching for "3.3v". I'll look into why that is the case.

These were among the hits using "battery":
http://www.zbasic.net/forum/about663.html
http://www.zbasic.net/forum/about970.html

Another keyword to use is "brownout".

Note, particularly, in post #970 the speed/voltage derating curve that shows that the chip will run down to about 3.5V at 14.7MHz. I've operated it at 3.3V for extended periods but that is out of spec. Also, one customer reported problems with updating the VM at low voltages.

Don,

I believe phpBB has a minimum length for search terms.

dlh wrote:I believe phpBB has a minimum length for search terms.

Yes, it does. The minimum length is 2 characters and the maximum length is 20 characters. Beyond that, however, it massages the post's text, replacing certain characters (punctuation, generally) with spaces. This causes something like "3.3v" to be seen as "3 3v".

I've modified the search word processing to replace periods with spaces only if they are preceded by or followed by whitespace. This is done after the punctuation replacement (which no longer replaces periods). The result of these changes is that "3.3v" is now a word that is stored in the search word database.

The search word tables have been rebuilt. If you search again for "3.3v" you'll get quite a few hits.

twesthoff wrote:I could not get any results searching for 3.3, 3.3v, or any other thing I tried.

I've modified the site search so that it, too, indexes words like "3.3v".

Thanks Don. The search works great now!
Tom

twesthoff wrote:The search works great now!

The site search now also supports the use of a trailing asterisk, implementing a limited "wildcard" search. With this feature, you can search using the keyword ZX-24* and get more matches than a non-wild search word.