The Palm Vx has never had any entries added into Datebook. It was purchased January
2000. I checked and found that there was an inadvertent entry (nothing but a capital A
at 10:00AM) on January 30, 2000. I deleted this entry and retested. I still get an
error count at the rollover to midnight. I tried purging the Datebook, but I still
have the problem. Actually, the only problem is definitively determining that this is
a known Palm OS behavior, so that I know it is not a problem originating with the
module sending the messages. Any other ideas on what Palm OS does for several seconds
at midnight?
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Datebook can take a few seconds to compute the time of the next alarm. It's only slow
if you've got events going way back, as happens if you've had a Palm for years and
never purge your Datebook. I don't see why this would happen every midnight, but it
might. -- Peter Epstein
Palm Inc. Developer
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Today, I manually set the clock on the Palm Vx to 11:58 PM and then restarted my test
with error count at 0. Two minutes later the count increased to 1 with a time stamp of
0:00:02. There must be something that Palm OS schedules at midnight that takes 2 or 3
seconds. Can any Palm OS engineers enlighten me?
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I'm running a test on a module that spits out serial data - 3 messages - once every
second. I'm using a Palm (a Vx and a IIIc) to monitor these messages and report if and
when 1.5 seconds or more elapses between message transmissions. I left the system
running continuously over the weekend, starting on Friday afternoon, with the error
count reading 0. On Monday morning, the error count was 3, Tuesday morning it was 4,
and Wednesday morning it was 5. Wednesday, I
added a time stamp to the Palm display to discover when the time gap was occurring,
and restarted the system with an error count of 0. Thursday morning, the error count
was 1, with a time stamp of 0:00:03 (3 seconds past midnight). The question: does Palm
OS do some kind of memory garbage cleaning scheduled at midnight that could take
several seconds?
Dave Heil
Preco Electronics
[EMAIL PROTECTED]
208-322-4288
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