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Subject: 
Re: RCX to Spy messages thru IR communications route
Newsgroups: 
lugnet.robotics.spybotics, lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc
Date: 
Thu, 25 Mar 2004 23:39:21 GMT
Viewed: 
268 times
  
I'm a little surprised that the Spybot doesn't need to see the packet header
byte - the byte containing the range/orientation bits preceding the 0x8n Ping
byte.  The header is deliberately generated with the stop bit cleared to force a
framing error.  I thought it was a convenient (or necessary??) method for the
Spybot to detect a start of packet.

Does your IR monitoring see this byte - or does it get gobbled up due to the
framing error?

--Jay



Message has 2 Replies:
  Re: RCX to Spy messages thru IR communications route
 
(...) I presume that somewhere that data is being dropped. It isn't showing up as data the tower reports to the operating system. I haven't actually tried the function I posted the other day so it is entirely possible that a Spybot will not (...) (21 years ago, 26-Mar-04, to lugnet.robotics.spybotics, lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
  Re: RCX to Spy messages thru IR communications route
 
(...) Boy, this RCX to Spy IR comm thing is sure going the right way! The SPYBOTICS are a little known and hidden LEGO gem. Gramps Eddie & Grandson CJ (21 years ago, 26-Mar-04, to lugnet.robotics.spybotics, lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)

Message is in Reply To:
  Re: RCX to Spy messages thru IR communications route
 
(...) Yes, that is what another person told me via email yesterday. So a ping simulation function for an RCX running the RCX2 firmware could be: // nLinkID = 0-7, where 0 = no link, 7 = pc link, 1-6 = controller link // nMyID = 8-255 (minBotID = 8, (...) (21 years ago, 25-Mar-04, to lugnet.robotics.spybotics, lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)

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