Most people run afoul of the fact that the two file
formats are entirely different. The .rbt file on your computer that was
created by the NXT-G software is the "source" to the program. That is, it
is the list of blocks, their settings, their position on the beams, how the data
wires are connected and so forth.
When you compile and download, the software
generates a file containing a set of computer hardware instructions that the
computer on the NXT brick knows how to interpret. The format of this file
is not only completely different (and therefore unreadable by the NXT-G
software), but you cannot recreate the original source file from the compiled
file on the robot!
So you can copy a compiled file off the robot and
then back on to the robot (or to another robot), but you cannot create a NXT-G
program file from the compiled and downloaded file on the robot. The
process is only one-way. This makes it very important that you keep backup
copies of your NXT-G .rbt program files.
I hope this helps your understanding of how it all
----- Original Message -----
Sent: Monday, October 26, 2009 11:55
Subject: [VADCFLL-L] Uploading NXT
My team has been attempting to
upload a program from the NXT controller to the PC using the specified
procedure. The resulting file is consistently unusable. The system
does not recognize the file. When we select it, we get a basic error
message. Does anyone else have this problem or know what we are doing
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