VEX-276-2194 VEX Robotics Cortex Micro Controller <p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">The VEX Cortex Microcontroller coordinates the flow of all information and power on the robot. It has built in bi-directional communication for wireless driving, debugging and downloading using the state of the art VEXnet 802.11 wireless link. The Microcontroller is the brain of every VEX robot. </font></p>
<p><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Features</font><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif"><br />
Built-in VEXnet Technology: Wireless driving, wireless debugging, and wireless downloading<br />
Motor Ports: (8) standard 3-wire Motor or Servo ports. (2) 2-wire Motor ports<br />
I2C Smart Sensor Port: Will connect to multiple new smart sensors in the future<br />
UART Fast Serial Ports: Connects to the VEX LCD Display (19,200 baud) and will have future support to 1.125 Mbaud<br />
Digital/Analog Input Ports: (8) high-res Analog Inputs, (12) fast Digital I/Os that can all be used as interrupts<br />
Rx1 and Rx2 Ports: Also support for two 75MHz crystal transmitters and receivers<br />
Battery Ports: Connect 7.2V power sources, such as the Battery Holder or the VEX 7.2V Robot Battery. Also connect a 9V Backup Battery to protect against communication losses.</font></p>
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<td colspan="3"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Specs</font></td>
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<td rowspan="3"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Battery In </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Voltage</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">7.2 volts nominal, 5-12V min/max </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Type</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Six AA batteries or 7.2V Pack </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Current</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">62 mA for Controller and REceiver plus Motors, Servos, and VEXnet </font></td>
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<td rowspan="20"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">I/O Ports </font></td>
<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">3-wire Motor Outputs (8) </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Usage</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">For 3-wire VEX motors or servos </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Type</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Hobby standard PWM </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Refresh</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Every 18.5 mSec </font></td>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">2-wire Motor Outputs </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Usage</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">For 2-wire VEX motors </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Type</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">H-Bridge</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Refresh</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Every 1 mSec </font></td>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">I2C &quot;Smart Sensor&quot; Port </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Usage</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Future I2C products </font></td>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">UART Serial Ports (2) </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Usage</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">VEX LCD Module </font></td>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">12-bit Analog Inputs (8) </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Analog In </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">12-bit resolution. 10uSec access time. </font></td>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Fast Digital I/O (can be used as interrupts) (12) </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Digital In </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">50 KHz input frequency </font></td>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">DAC Speaker Output </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Usage</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Output sound, voice, music to an external speaker </font></td>
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<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Rx1 and Rx2 (2) </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Usage</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Connects to (2) 75MHz receivers </font></td>
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<td rowspan="4"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Micro Controller </font></td>
<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">STMicroelectronics ARM Cortex-M3 </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Speed</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">90 MIPS (million instructions per second) </font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">RAM</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">64KB</font></td>
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<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Flash</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">384KB program space </font></td>
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<td><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Programming</font></td>
<td colspan="2"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">easyC V4 for Cortex<br />
ROBOTC for Cortex and PIC <br />
Note: The only version of ROBOTC for Cortex & PIC approved for use with the Cortex is 2.20.1 BETA. Using previous versions may permanently damage the Cortex Microcontroller.</font></td>
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<td><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Size</font></td>
<td colspan="2"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">3.9 x 4.5 x 1in. </font></td>
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<td><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Weight</font></td>
<td colspan="2"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">.302 lbs (137g) </font></td>
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