Chameleon-PIC Nurve Networks, Chameleon-PIC Datasheet - Page 240
![MCU, MPU & DSP Development Tools PIC24 & PROPELLER DEV SYSTEM (SBC)](/photos/15/93/159367/cham_pic_sml.jpg)
Chameleon-PIC
Manufacturer Part Number
Chameleon-PIC
Description
MCU, MPU & DSP Development Tools PIC24 & PROPELLER DEV SYSTEM (SBC)
Manufacturer
Nurve Networks
Datasheet
1.CHAMELEON-PIC.pdf
(263 pages)
Specifications of Chameleon-PIC
Processor To Be Evaluated
PIC24
Data Bus Width
16 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
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kept it at 1K) in the X-Modem function, thus it only buffers 1K of the data and writes it to the FLASH memory. Everything
else is shown on the screen as its received, but lost. Option 1 is shown in Figure 31.7 below.
Of course, you can alter the XModem receive function to write files directly to the FLASH as they are received block by
block, and you probably will need to.
Option 2, lists out the first 1K of the FLASH memory, so you can see what’s in it. Point, being you want to boot the
program, see what’s in the FLASH it, then download something, see if it changes, reset, re-boot, try again. An example of
Option 2 running is shown in Figure 31.8 below.
Thus, the usual order of operations will be to boot the Chameleon with the FLASH demo, then you might hit Option 2 to
see what’s in the FLASH’s first 1K of memory. Then you might decide to overwrite it with something, so you go to your
PC, set up the X-Modem download, start the file transfer and the PC program will wait…
Then you go back to the Chameleon’s local keyboard and press Option 1, then you will see a 3 second countdown and
the program will start downloading – as it downloads you will see the test stream across the screen.
Finally, I have created a few files for you to download with X-Modem that have short famous poems all located in the
Source directory here:
“The Road Not Taken” by Robert Frost
“O Captain! My Captain!” by Walt Whitman
“All the World's a Stage” by William Shakespeare
They are better than using random .TXT files or data files and if you are over 21 years old and haven’t read these at least
once in your life, it’s worth doing so, they are very powerful and very true.
DVD-ROM:\ CHAM_PIC \ SOURCE \
Figure 31.8 – The FLASH demo displaying a file.
Figure 31.7 – The FLASH demo receiving a file.
- xmodem_test_file_road_not_taken.txt
- xmodem_test_file_o_captain.txt
- xmodem_test_file_all_the_worlds_stage.txt
© 2009 NURVE NETWORKS LLC “Exploring the Chameleon PIC 16-Bit”
240
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