Chameleon-AVR Nurve Networks, Chameleon-AVR Datasheet - Page 127

• Manufacturer Part Number: Chameleon-AVR
• Description: MCU, MPU & DSP Development Tools AVR8 & PROPELLER DEV SYSTEM (SBC)
• Manufacturer: Nurve Networks

Specifications of Chameleon-AVR

• Processor To Be Evaluated: AVR 328P
• Data Bus Width: 8 bit
• Interface Type: USB, VGA, PS/2, I2C, ISP, SPI
• Operating Supply Voltage: 3.3 V, 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2009 NURVE NETWORKS LLC “Exploring the Chameleon AVR 8-Bit”
Also, when you hit reset each time you will see the LED D3 under the Video port blink (3) times (shown in Figure 15.69,
this is part of the testing firmware to confirm the Propeller chip is functioning correctly as well as to verify the LED is good.
Finally, you will HEAR the Chameleon make sounds as it boots up, a series of tones that play musical notes when you hit
RESET. Make sure to have the audio port plugged into your NTSC TV as well. These will all be part of the final tests for
each Chameleon.
Figure 15.69 – The LED will blink whenever you reset the Chameleon once you have loaded the Propeller driver
firmware.
Of course, all we really did was re-download the SAME firmware back into the Propeller chip, so whatever is loaded into
the AVR at this point will ultimately direct the Propeller slave what to do. But, this is the process to load the Propeller chip
with a program. Additionally, you just saw how to load the default driver that this manual uses 99% of the time which is
loaded on the Chameleons when they ship. But, you can surely change this driver if you wish, update it, make it faster,
better, change objects it relies on etc. You will learn how to do this later in the manual – update the Propeller driver, but
for now, we aren’t going to touch it other than knowing where it is, and how to download it. This is the idea of the
Chameleon – the Propeller chip is like a black box, when things go right, we shouldn’t even know its there, the Propeller
should work like another other media processing chip and just execute the command we send it.
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