Java : 239


Robotics / RCX / Java / 239	238 \| 240

Subject:	Re: usb from .java best how
Newsgroups:	lugnet.robotics.rcx.java
Date:	Mon, 3 Feb 2003 21:41:10 GMT
Viewed:	4693 times

> http://news.lugnet.com/robotics/rcx/java/?n=237 > Subject: Re: frame RCX reply how ... > > Anyone know more specifically where to read how > Lejos frames standard RCX IR replies? > > Does Lejos even include any .java code that runs > on the PC? Offline thanks I'm told that: http://developer.java.sun.com/developer/onlineTraining/webcasts/pdf/singapore/sritter.pdf gives a one page Lejos usage summary in slide 26 of 31 that says `Lejosfirmdl` can download new firmware, which necessarily involves talking thru USB or serial. Code for .java thru .c to USB may only be a few clicks away. I see: http://news.lugnet.com/robotics/rcx/java/ has the label "leJOS" on the link: http://lejos.sourceforge.net I imagine we'll be learning to talk from .java thru .c thru USB thru IR to the RCX ... unless `Lejosfirmdl` is coded entirely in .c. Finding .c code that can speak USB would be enough, since JNI speech thru .c from .java is reasonably well documented, first at: http://java.sun.com/docs/books/tutorial/native1.1/index.html and Google for the MinGW gcc on Windows eventually yields: gcc -Wall -shared -Wl,--add-stdcall-alias -o ...dll -I ... -I ... Pat LaVarre

Message has 1 Reply:

		Re: usb from .java best how
(...) Pat, Lejos 2.1.0 includes JNI libraries that support all forms of RCX comms. The PC Tower class interfaces with serial and USB towers. It lets you send and receive standard Lego packets. The send and receive methods support the Lego firmware (...) (22 years ago, 5-Mar-03, to lugnet.robotics.rcx.java)

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		usb from .java best how
To talk USB from .java, from Linux ff. 2.4.19, Win 95B/ 98/ ME/ Win NT/ 2K/ XP, and/or MacOS 9/X ... ... what techniques are most easy to learn, fast, reliable, and yet arbitrary enough to support a Lego USB IR tower? That is, what is the USB (...) (22 years ago, 3-Feb-03, to lugnet.robotics.rcx.java)

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