Using Java to talk to an embedded system

Hi Lewin,

This no doubt is not particularly helpful but I use a java telnet applet to talk to an embedded system which is online here:

The embedded controller talks over RS-232 to a terminal server which is accessed by the telnet applet.

Embedded in the web page, the opportunity for GUI window dressing presents itself; I also use VT-100 graphics in the telnet session for GUI-like features (not particularly evident in my example yet).

Regards,

Michael

Oh, I can write the JNI stuff. That's no problem. Actually, I will do the development in MacOS anyway :) My question is, asking someone who's already tried to do something of this sort, whether it is a better prospect to look for native Java solutions or just go the simple route with JNI.

Well I have always gone the JNI route, and found it to work as expected. But as in my previous post, next time I will try javacomm + groovy, because it means I can write the sorts of simple apps I write using a scripting language + existing library, then drop the c compiler + makefile. I _suspect_ javacomm also works as expected. I will look with interest to see if anyone posts to your original question anything that puts me off ;-)

Regards,

Paul.

Well, I was pointed to this:

which is extremely interesting. I'll experiment with that this weekend.

Yay Intarwebs.

I had a lot of luck with using a JNI interface to a USB DLL. With something as straight forward as serial communications, it should be a snap.