Subject:
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Re: Spirit.ocx in VC++
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 5 Mar 2000 22:08:16 GMT
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Original-From:
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Len Holgate <len.holgate@dial=AntiSpam=.pipex.com>
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Viewed:
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2771 times
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Well done!
I expect the datalog data is just represented in this way for ease of use by
VB programmers.
----- Original Message -----
From: iant <iant@libero.it>
To: <lego-robotics@crynwr.com>
Sent: Sunday, March 05, 2000 8:13 PM
Subject: Re: Spirit.ocx in VC++
> Hi Steve, Len and All,
>
> I was closer to the solution than I thought!
>
> The code I posted this morning was correct.
> What I missed was the format of the datalog, which is very
> hard to understand from the docs of spirit.ocx.
>
> After hacking around for a while I found that the format of the
> array of 2-bytes integers that represents the datalog is:
>
> *- header -*
> 1 255
> 2 0
> 3 number of data logged
>
> *- 1st logged value -*
> 4 type of data source (0=variable, 1=timer, 9=sensor)
> 5 number of data source (0-31 variables, 0-3 timers, 0-2 sensors)
> 6 logged value
>
> *- 2nd logged value -*
> 8 type of data source
> 9 number of data source
> 10 logged value
>
> *- 3rd logged value -*
> 11 ... and so on ...
>
>
> For example:
>
> 255
> 0
> 3
> 1
> 0
> 10
> 9
> 1
> 765
> 0
> 3
> 85
>
> is the raw array for the following datalog:
>
> Timer_0: 10
> Sensor_2: 765
> Variable_3: 85
>
> Pretty easy, isn't it?
>
> Now a question arises: why use 2 2-byte integers to address the data
> source, when a 6-bit integer would have been more than enough???
> I hope this is only a format given by UploadDatalog method, and in
> the RCX the datalog is stored in a more compact way, because it is
> an *amazing* waste of memory!
>
>
> Bye,
>
> Antonio
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Message is in Reply To:
 | | Re: Spirit.ocx in VC++ [DAT]
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| Hi Steve, Len and All, I was closer to the solution than I thought! The code I posted this morning was correct. What I missed was the format of the datalog, which is very hard to understand from the docs of spirit.ocx. After hacking around for a (...) (27 years ago, 5-Mar-00, to lugnet.robotics)
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