echevy wrote:
The ultimate goal was to get the emeter working so that I can capture the
serial output to put in a spread sheet for a picture of the pack current and
voltage as I drive. This seems to be working, however I'm getting some
garbled lines and stray characters. I'm using RealTerm to do the capture.
I've got a USB to RS232 converter that uses one of the more popular chips
for this purpose. The drivers are up to date. I'm running on a little
netbook on batteries as I drive around.
Is the RS232 output normally affected by noise from the drive system?
I haven't seen it affected by noise. But I *have* had lots of problems
with Windows missing characters. The only way I've been able to receive
*all* of the data without any missing characters is by capturing the
data from a DOS program.
I normally use a little QuickBASIC program I wrote. It receives the data
bursts every 1 second, and condenses them down. If a particular value
hasn't changed, it doesn't write it to disk. Instead, it only writes
them when there is enough of a change. This vastly reduces the size of
the data files, and makes them far easier to handle with Excel etc.
--
ICEs have the same problem as lightbulbs. Why innovate and make
better ones when the current ones burn out often enough to keep
you in business? -- Hunter Cressall
--
Lee Hart, http://www.sunrise-ev.com/LeesEVs.htm, ebay# 271318702449
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