Someone reported to me that they tried connecting an IQ brain to their computer via the included ethernet cable, which resulted in smoke being emitted from the computer. (alarm bells started ringing in my head at this point)
Now they’re experiencing some strange program download issues: No matter what the program is called in VEXcode IQ, downloading results in a program called “xxxxxxxxxxxxxxx” appearing on the brain, and no matter what the program does, running the downloaded program immediately throws the “User program time limit of 3 seconds exceeded” error. I tried as many software and hardware troubleshooting steps as I could over Zoom, but nothing altered this behavior.
Naturally, I strongly suspect these two things are related. What kind of protection circuitry, if any, is there on the IQ brain’s
ethernet RJ45 port. I assume the pinout of the brain’s port is different to a normal ethernet port - is there a pinout diagram available somewhere? What sorts of things could get damaged when connecting the brain’s ethernet RJ45 port to a ‘normal’ ethernet port on a computer?