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I guess this topic is dead now... M. Hansen? I am quoting you as you are my last hope of solving this problem Thank you all and have a nice day!

Hi again! I gave a shot at the virtual machine today and I must admit I am totally unable to make it work. So my last chance here is John Hansen doing the tricks he knows with the software he created... Please, M. Hansen, do it! Please! Anyway, it's been fun chatting with all of you guys. Have a nice day!

Thanks for the precisions concerning John. People capable of such things have all my admiration. Concerning light, thanks for the suggestion but it is one of the first things I tried. As I said, the communication works good since I am able to download firmwares onto my RCX. I think the last tests John asked me to do show that BricxCC uses my USB TO serial correctly but that another part of the program doesn't. At this point, only a modification of the program or a virtual machine as suggested before might solve my problem. All that help you are offering me is so much appreciated !

Hi again! Here is the message from the debugger Thank you very much!

I didn't even know there were multiple possible programming languages using BricxCC so my apologies. For me, using bricxCC meant I was writing code in NQC. My bad, sorry. First of all, thanks for your patience. I ensure you I am trying to be clear, English not being my maternal language and computers/programming, no more than a hobby. So, please, don't take my ignorance as a personal attack or a lack of willing to solve my problem. The answer to your questions is "correct" for all of them. - I am running Windows 10 - I know where to find the program path - I can download the firmware without any error The instructions you kindly wrote should be easy to follow. I'll try these in a couple of hours and paste the results here. EDIT 1: - The command "nqc -TRCX2 -watch now" returmed "Problem talking to IR device" - The command "nqc -TRCX2 -SCOM2 -v -watch now" returned "Could not open serial port or USB device" - I will try to paste the image I took from the debugger after compiling the program I wrote - Are you really the mastermind behind BricxCC? Just so you don't have to ask the question, COM2 is the one I use when I successfully download firmwares to the RCX. As for now, be sure I appreciate very much what you are all doing for me. Have a nice day!

I am not sure I understand your question... NQC stands for "not quite C" which means, you know, just that. All the instructions I use are prebuilt and the program compiles just well. Also, As I said before, I downloaded a very simple program (main(){}) and it didn't make its way to the program memory. I doubt a lot there is something wrong with the way I write this code. BUT, I would believe that BricxCC converts this code to something my RCX doesn't understand. I just don't know how to test it... As I said, what the programs does may not make any difference because I tried the most simple program with no success at all. But, if I succeed, I'll be able to control 3 motors using two switches as a remote control. pressing the two switches simultaneously would switch the controled motor. All that because the only way (I know) to manually control 3 motors is this new smartphone thing that costs too much. I already read all this stuff! I'll tell you, I read a lot about this issue... It's my first time on a forum because, habitually, I find my answers myself (using answers from others)! As for the firmwares, I tried this "new" one you suggest (3.32), two even more old ones and a custom one (the most compatible, they say) with no success. I like the way you think! I tried two different versions of bricxCC. An older one (to be sure) and this new one I sticked with : 3.3.89. When it comes to command prompt, really, you lose me. I don't have a clue of what you are asking me to do! All I can tell you is that the code is compiling well, no error. If I do an error on purpose, bricxCC detects it and tells me. I can also ensure that there is something occuring during the program transfer because this icon flashes a couple of times before the error message pop-up. The RCX just seems to throw it away... I'll try the command prompt you suggest but I doubt I'll succeed. I'll edit this message if i do. As for the Virtual Machine option another great guy suggested me, well, it doesn't worst it! This thing is a monster! EDIT: pressing F12 during compiling shows a window containing a lot of text i don,t understand. Are we searching for something in particular? EDIT 2: I tried and opened a command prompt window. I tried help to understand a couple of things. Period. Can't go anywhere further than that! Sorry! Help me a little bit with this pasrt so I can test the things you want me to test please! Again, to all of you guys, thank you so much!

Okay, I'll try that and come up with the result! Thanks! EDIT: God! It is sooooo complicated! What are you?! I didn't even know it was possible to emulate an entire computer! I'll really have to dig into that...

hassenplug I tried this: no success. I should have mentioned it, sorry XtremeBuilder I tried running the program using the win10 compatibility mode. Do you think it would give the same result? schraubedrin I tried different firmwares, including two original one and the "fast0103". I don't find any information regarding which firmware would be more compatible with BricxCC. Do you have any idea? I think this is the more promising way to solve this problem so i am really interested into finding more about it! You all, who took time to answer, I must tell you this is appreciated so much! Thanks again and have a nice day!

Hi all! I need help in order to make an idea alive! The idea is to use an old RCX 1.0 to manually control 3 motors using two switches as a remote control. All I need now is to download the program I designed using bricxCC V3 to my RCX, but it doesn't work! I am able to download different firmwares, manually control the RCX (piano, doagnostic, etc) so the communication works just fine! When I download the program to the RCX, the RCX download icon blinks 2 or 3 times then the download error pops-up from the bricxCC software. And, as I said, it is not a communication issue... even thought it's been a tough one configuring the usb to serial converter! My questions to you, the real pros: Is there any kind of compatibilty I should be aware of between bricxCC and the RCX? Is there 2 different memories onto the RCX so the firmware memory would be okay but the program memory would be broken? How can I test it? Even if you have no idea what would be a solution to this problem, any kind of encouragement would be so much appreciated! Thanks!