Chameleon-AVR Nurve Networks, Chameleon-AVR Datasheet - Page 243

• 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

All that conditionally compilation code is to help you modify the function to add features to it since this is really the only
way to get “data” from the PC into the FLASH memory at the moment (unless you make something yourself).
Alright, now that you have an idea about X-Modem protocol, let’s take a step back and see how we are going to send X-
Modem files from the PC?
Sending X-Modem Files from the PC
Sending X-Modem files from the PC is almost the same as setting it up for serial communications, that is, you need a
program capable of X-Modem file transfer. Luckily, there many of them available, but once again I suggest that you use
two of my favorites Absolute Telnet and ZOC which you can find online here:
Copies of them are also on the DVD-ROM here :
For this example, let’s use Absolute Telnet. Similarly, you need to install the program, then create a communications
profile for your USB serial COM port, but this time there is a difference, instead of 115,200 baud that we have been
communicating at, we are going to slow things down to 2400 baud. This is to reduce the potential error rate to near zero.
So your final setup should look something like the dialog shown in Figure 31.4 below.
Zoc
Absolute Telnet
DVD-ROM:\ CHAM_AVR \ TOOLS \ COMMUNICATIONS \ *.*
http://www.emtec.com/zoc/
http://www.celestialsoftware.net/telnet/
© 2009 NURVE NETWORKS LLC “Exploring the Chameleon AVR 8-Bit”
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