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Subject: 
Re: Communicating with Cybermaster not easy
Newsgroups: 
lugnet.robotics
Date: 
Mon, 25 Jan 1999 21:44:59 GMT
Original-From: 
Peter Ljungstrand <PETER@INFORMATIKstopspammers.GU.SE>
Viewed: 
2849 times
  
Take a look at my page to find out how the CyberMaster protocol works
(it is not the very same as the RCX), and to find som sample programs in C
and Perl
that works.


http://www.viktoria.informatik.gu.se/~peter/lego/

//Peter

At +0000 1/25/99 21:24, you wrote:
> Hello there,
> I am experimenting with the Cybermaster, but is not able to
> get the communication line up between the PC and rcx radio tower.
> (I use Visual Prolog for programming).
> 
> I use 2400bps 8 bit no parity 1 stopbit
> I am sending a byte sequence like the following:
> 0x55 0xFF 0x00 0x10 0xEF 0x10
> where the three first bytes are the header,
> 0x10 is data and 0xEF is complimentary to 0x10
> and the last 0x10 is checksum (sum of all data mod 256)
> 
> The light on the rcx radio tower is blinking when I send the data
> but the light on the rcx is not blinking as it should when receiving data.
> 
> I get nothing back to th PC.
> 
> Do I need some advice or should I take up collecting stamps?
> 
> Thanks
> Sten Kvamme
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics

-------------------------------------------------------------------------
Peter Ljungstrand; PLAY Research Group, Viktoria Institute

http://www.viktoria.informatics.gu.se
Email: peter@informatics.gu.se
Phone: +46-(0)31-7735543        Mobile: +46-(0)708-302251
Fax: +46-(0)31-7735530        ICQ: 6820636
Visitors: Viktoriagatan 13, 7th floor
Snail-mail: Box 620, 40530 Göteborg, Sweden

--
Did you check the web site first?: http://www.crynwr.com/lego-robotics



Message is in Reply To:
  Communicating with Cybermaster not easy
 
Hello there, I am experimenting with the Cybermaster, but is not able to get the communication line up between the PC and rcx radio tower. (I use Visual Prolog for programming). I use 2400bps 8 bit no parity 1 stopbit I am sending a byte sequence (...) (28 years ago, 25-Jan-99, to lugnet.robotics)

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