Answered: [VEX U] VUR7 and using a Cortex as a Secondary Processor

[Jij]

Hi Karthik,

Regarding VUR7 (quoted below), may we use a VEX Cortex Microcontroller as a secondary processor, solely for the purpose of processing sensor inputs? It would not be connected to any motors or solenoids in any way, only sensors. There would be no VEXNet Key in the second Cortex (we wouldn’t communicate wirelessly). It would communicate with the main/normal Cortex via the UART ports. I can see a potential clash with VUR3 (also quoted below), however I’m not sure this would be relevant for the purposes of the second Cortex only being used for sensor processing.

Each Robot is allowed to utilize up to one (1) VEX ARM® Cortex®-based Microcontroller
a. No other types of VEX Microcontroller are permitted

There is NO restriction on sensors and additional electronics used for sensing and
processing except as follows:
a. Sensors and Electronics MUST be connected to the VEX ARM® Cortex®-based
Microcontroller, and can only be connected via any of the externally accessible ports.
b. Sensors and Electronics CANNOT directly electrically interface with the VEX motors, motor
controllers, or solenoids.
c. The additional Sensors and Electronics may only receive power from any of the following:
i. Directly from the VEX ARM® Cortex®-based Microcontroller via any externally
accessible port.
ii. From an additional VEX 7.2V Robot Battery or from a VEX 9.6V Transmitter Battery
(only one (1) additional battery can be used for sensor power.)

Thanks,
George

[Karthik]

@Jij

Regarding VUR7 (quoted below), may we use a VEX Cortex Microcontroller as a secondary processor, solely for the purpose of processing sensor inputs?

No this is not legal. takes precedence here.