I have a problem with communication between the tower (it's installed and it's working - green light when communicating by IR ) and a RCX 1.0. It's not downloading .lgo file. I've tried with few versions of this file and it's the same.
Now I'm trying on my PC in ROBOTC. Green light is lighting but RCX doesn't respond. I think it is failed. But manually with built in programs it's working