Subject:
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RE: Hacker rcx
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 22 Jan 2002 17:26:47 GMT
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Original-From:
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"Nanobapt" <nanobapt@nordnet.fr>
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Viewed:
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1013 times
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Ok I know the lego network protocol communication but i can't send it well
cause the message is
first : not understand by the RCX
second : cause (perhaps) is that the message is not correctly send ...
for more information that the code i use :
Private Sub Command1_Click()
Rem 85 255 0 247 8 1 254 248 7
SENDBYTE 85
SENDBYTE 255
SENDBYTE 0
SENDBYTE 247
SENDBYTE 8
SENDBYTE 1
SENDBYTE 254
SENDBYTE 258
SENDBYTE 248
SENDBYTE 7
End Sub
Private Sub Form_Load()
OPENCOM "COM1:2400,NRZ,8,1"
End Sub
I give the the most important in my code
thanks nanobapt
-----Message d'origine-----
De : PC CHAN [mailto:pc.chan@alcatel.com]
Envoyé : mardi 22 janvier 2002 17:26
À : nanobapt
Cc : lego-robotics@crynwr.com
Objet : Re: Hacker rcx
Hi,
It looks like you really meant a single "byte".
To my understanding from the RCX 2.0 (with usb port) SDK available from
Lego, the "byte" would have to be wrapped up in a certain way, such as
leading sync bytes plus a number of conditions to form a command for
transporting through the IR tower.
For example the "byte" itself must have a certain bit toggled between
commands, followed by the compliment of the "byte". The "byte" also implies
the number of bytes of parameters to follow. The parameters should then be
paired up with their compliments in the same way. At the end there should
be a sumcheck and its compliment.
It is a command in a proper wrapper, the RCX is looking for. We cannot
expect the RCX to respond to a single byte in isolation.
There is a send raw command in nqc, you can send raw bytes to send but
again the RCX would only respond unless it is a properly formed dcommand.
Please read the documentation in the RCX 2.0 SDK for details. It should
be the same for RCX 1.5, since there isn't a separate SDK for RCX 1.5.
By the way, if you are using nqc (Not Quite C. It is free!), you may try
the undocumented -v option. It shows you how each command is being sent and
responsed to. In that way you can learn how the wrapper works so that you
can do the same in your SENDBYTE.
P.C.
==========================================================================
========================
nanobapt wrote:
Yes my rcx have the firmware !! So i send the Byte by the SENDBYTE
command which include in the port.dll which I use
thanks
nanobapt
-----------------------------------------------------------------
"la cuillère n'existe pas"
http://www.mindstorms-bapt.fr.st/
http://membres.tripod.fr/mecahp
icq : 94470030
----- Original Message -----
From: PC CHAN
To:nanobapt
Cc: lego-robotics@crynwr.com
Sent: Monday, January 21, 2002 2:58 PM
Subject: Re: Hacker rcx
Which command did you send and how did you send it? Did your RCX
have the firmware in it?
nanobapt wrote:
i have a problem. I want to program a windows to send RCX message
but i have a problem ... My problem that i can send Byte but the rcx don't
know them. I follow the rcx internal instruction but it don't work !!
Someone can help me to write a program who can send RCX message in
VB ??
thanks
nanobapt
-----------------------------------------------------------------
"la cuillère n'existe pas"
http://www.mindstorms-bapt.fr.st/
http://membres.tripod.fr/mecahp
icq : 94470030
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Message has 1 Reply:
 | | RE: Hacker rcx
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| It looks like you have an “extra” command in your sequence. Probably a typo. Remove the line “SENDBYTE 258”! -----Original Message----- From: Nanobapt [mailto:nanobapt@nordnet.fr] Sent: Tuesday, January 22, 2002 11:27 AM To: PC CHAN Cc: (...) (23 years ago, 22-Jan-02, to lugnet.robotics)
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Message is in Reply To:
| | Re: Hacker rcx
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| Hi, It looks like you really meant a single "byte". To my understanding from the RCX 2.0 (with usb port) SDK available from Lego, the "byte" would have to be wrapped up in a certain way, such as leading sync bytes plus a number of conditions to form (...) (23 years ago, 22-Jan-02, to lugnet.robotics)
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