Programming instructions
ROBOTC
VEX Cortex Conguration over USB • 3
©
2011 Carnegie Mellon Robotics Academy / For use with VEX Robotics Systems
3. The VEX Cortex Download Method controls how ROBOTC downloads rmware and programs
to your Cortex, as well as what types of connections your Cortex checks for when it is powered
on. Conrm that your VEX Cortex Download Method is set to Download Using VEXnet or USB
or Download Using USB Only.
VEX Cortex Conguration over USB (cont.)
Option 1: Download Using VEXnet or USB
With this option selected, ROBOTC will download ROBOTC rmware and programs to your
Cortex using a VEXnet or USB connection. In this mode, when the Cortex is powered ON it
will look for a VEXnet or USB connection for up to 10 seconds before running your program.
(The Automatic Selection option in the ROBOTC Preferences should be selected if you plan on
switching between VEXnet and USB as your download method.)
Option 2: Download Using USB Only
With this option selected, ROBOTC will download rmware and programs to your Cortex
using only the USB connection. In this mode, when the Cortex is powered ON it will
immediately run your program. This option is NOT recommended if you are using the VEXnet
Joysticks to download to the Cortex, or remotely control it.
Option 1: Download for Competition (VEXnet)
This option disables the ROBOTC debugger, and is not recommended for classroom use.
Important Note: Restarting the Cortex
The VEX Cortex Download Method setting is stored in ROBOTC and on the Cortex. If you
change the setting, the Cortex must be power cycled (turned fully off, and then back on)
before the change will take effect.
Setup