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Ev Archive for March 1999
1534 messages, last added Wed Aug 08 18:44:43 2001

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Re: EV-100 System FORMAT questions



I think I am beginning to see what you are doing.

When I was talking about data formats, I assumed you are sending all this data
(time, date, vpro, ipro, etc.) all over the SAME interface. It might be a
serial RS-232, or 8-bit parallel, or some other format; but all the data is
passed sequentially along this path. If this is the case, then a long stream
of undifferentiated numbers separated by commas is very likely to get
mis-interpreted due to noise, software bugs, or other problems.

Now I think you are assuming that time, date, vpro, ipro, etc. are all
DIFFERENT PINS on the EV-100 bus. If this is the case, then there is no
ambiguity. A device only needs to look at the vpro pin, and it can be
absolutely sure that any data on this pin is ONLY vpro, the propulsion pack voltage.

Is this right?

Lee Hart                     If you would not be forgotten
4209 France Ave. N.          Soon as you are dead and rotten
Robbinsdale, MN 55422 USA    Either write things worth the reading
phone (612) 533-3226         Or do things worthy of the writing
e-mail XURQ03A@prodigy.com   (Ben Franklin, Poor Richard's Almanac)