I have encountered people who have URG-04LX's that only speak SCIP 1. They were able to apply a firmware upgrade available from the Hokuyo website to make them speak SCIP 2. Geoff On 29/06/10 01:25, Blaise Gassend wrote: > Hi Vinay, > > I believe that URG-04LX comes in multiple versions. I know that there > are ones that do SCIP 2.0. I have one on my desk that defaults to SCIP > 1.0, but that you can switch to 2.0 by sending a command. I suspect (but > do not know) that there may be older ones that only do SCIP 1.0. > > I just had a quick look at the SCIP 1.0 spec > http://www.hokuyo-aut.jp/02sensor/07scanner/download/data/URG_SCIP11.pdf > and it looks like the command to get the firmware is just "V" instead of > "VV". Could you try redoing the picocom test and just typing V and then > return? > > I think that player actually supports SCIP 1.0, so that could explain > why this works with player. Unfortunately the ROS hokuyo_node does not > support SCIP 1.0. > > You should be able to upgrade your firmware by contacting Hokuyo if you > want your laser to be able to talk SCIP 2.0. > > Cheers, > Blaise > > On Fri, 2010-06-25 at 17:56 -0700, Vinay K wrote: >> Hi Blaise, >> >> Hokuyo model is : URG-04LX. I installed picocom, but after executing >> $ picocom /dev/ttyACM0 >> ........................................... >> Terminal ready >> >> Now if I type VV [or vv] it reply with "C" . So don't know what the >> firmware version is. from URG-04LX specifications it seems that it >> follows SCIP version 2. >> >> I have tested laser with player program and its working. Because of >> modularity and distributed system I switched to ROS and just trying to >> make an interface with powerbot [Pioneer]. I have tested p2os node >> [from USC] and found it working. Expecting your help in this regards. >> >> Vinay >> >> On Fri, Jun 25, 2010 at 12:23 AM, Vinay K >> wrote: >> Hi, >> >> I was trying to run hokuyo_node to test my hokuyo laser. below >> is the error while execution...., I have set /dev/ttyACM0 port >> and also permission to access ttyACM0. Getting this error and >> also checked the troubleshooting. Seems that I am missing >> something very trivial. Help from your side 'll be greatly >> appreciated. >> .......................................Error...................................................... >> vros@powerbot:~$ rosrun hokuyo_node hokuyo_node >> [ERROR] 1277434561.027264000: Exception thrown while opening >> Hokuyo. >> Checksum failed on status code. (in hokuyo::laser::sendCmd) >> You may find further details at >> http://www.ros.org/wiki/hokuyo_node/Troubleshooting >> ................................................................................................. >> >> Thanks, >> >> Vinay >> >> >> _______________________________________________ >> ros-users mailing list >> ros-users@code.ros.org >> https://code.ros.org/mailman/listinfo/ros-users > > > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users >