following situation: I have a RIS 1.5 with RCX 1.0 and a serial IR tower. The RCX is not pre-loaded with the original LEGO firmware (because I have no Windows machine available), i.e. it is still in boot/upload mode.
I installed leJOS 3.0.0 under Xubuntu 7.07 on a ThinkPad 600 machine and rebuilded the distribution with JDK 1.6. But when I try to download the leJOS firmware I get the following error:
Code: Select all
read firmware srec
Loading native libs
Tower error: Tower not responding
It takes about 5 secs. before I get the "Tower error" message. LEJOS_HOME, JAVA_HOME, PATH, CLASSPATH and RCXTTY are set according to the leJOS installation notes (RCXTTY=/dev/ttyS0). ThinkPad BIOS config tool says that COM port is ok.
Does anybody have experience with leJOS and serial IR tower under Linux - what could be the problem in my case? Is it maybe that I first have to use the original LEGO software and load their firmware to the RCX (before I try to use the hardware with leJOS)?
Thanks for any help!