Subject:
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framing RCX LNP replies in Java
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Newsgroups:
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lugnet.robotics.rcx.java
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Date:
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Sat, 1 Feb 2003 14:16:15 GMT
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Viewed:
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6087 times
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> Subject: Re: frame RCX reply how
> From: "Brian B. Alano" <throwaway@insightbb.com>
> Newsgroups: lugnet.robotics.rcx
> Date: Sat, 1 Feb 2003 01:06:27 GMT
>
> give you a direct answer, but I don't know ...
>
> sources which you can adopt, co-opt, or
> reverse-engineer to get where you are going ...
>
> 1. ...
Thanks I reached: src/org/javastorms/lnp/IR.java
> > http://www.javastorms.org/download.htm
> > http://www.javastorms.org/data/javastorms-2.0.3.zip
> > (613,194 bytes)
>
> the readMsg() method in org.javastorms.lnp.IR.class
> validates an LNP frame.
I think I see ...
readMsg accepts what it likes else dies after reading the first distasteful
byte. readMsg likes either of xF0 or xF1, then a length byte, then that many
bytes, then a checksum.
readMsg is not public yet has no grep hits ... I don't understand how it ever
runs. Maybe it doesn't: its source appears block-copy-edited in the
lnp/LNP.dataReceived reached lnp/IR.serialEvent.
Looks like the SerialPort open is pretty vanilla. I see (2400, DATABITS_8,
STOPBITS_1, PARITY_NONE) with notifyOnDataAvailable. No
enableReceiveThreshold, enableReceiveTimeout, enableReceiveFraming, nor
setInputBufferSize.
Thanks again, Pat LaVarre
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Message is in Reply To:
 | | Re: frame RCX reply how
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| I wish I could give you a direct answer, but I don't know. However, I suspect (as I'm sure you do) that what you are looking for has already been done. Below are three possible sources which you can adopt, co-opt, or reverse-engineer to get where (...) (21 years ago, 1-Feb-03, to lugnet.robotics.rcx)
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