Chameleon-PIC Nurve Networks, Chameleon-PIC Datasheet - Page 32

• Manufacturer Part Number: Chameleon-PIC
• Description: MCU, MPU & DSP Development Tools PIC24 & PROPELLER DEV SYSTEM (SBC)
• Manufacturer: Nurve Networks

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

and Propeller don’t require much conditioning, thus the manual reset circuit is nothing more than a switch and a pull up
resistor as shown in Figure 3.1. Typically, you will reset the system yourself via the reset button (next to the PIC), but the
Propeller tool as well as the bootloader tool both use the serial port lines DTR to control the reset of the respective chips
during programming.
4.0 Microchip 6-Pin ISP Programming Port
The Chameleon PIC has two different programming ports:
For more technical information on these ports and protocols please refer to these documents on the DVD:
Let’s discuss both programming ports and their relevance beginning with PIC’s built in ISP port.
4.1 PICkit 2 ISP Programming Port
The ISP port is for programming the PIC chip only. Microchip and other 3
compatible with MPLAB. The Microchip product called the “PICkit 2” is typically used by hobbyists as a low cost
alternative for use with Microchip PIC line of products as in Figure 4.1 (available for purchase separately).
The circuit for the ISP programming port is presented in Figure 4.2 while the pinout and descriptions are given in Table
4.1. From the figure we can see that the programming ports are fairly simple. Each line directly connects to the process or
power. The PICkit 2 ISP programmer can control the RESETn line of the board and even supply 3.3V power if it detects
the board is currently under powered. Explanations on how to use the PICkit 2 and the correct way to connect to the
Chameleon PIC 16-bit are discussed in the programming section of this manual.


6-pin ISP (In System Programming) port used to program the PIC chip directly
USB UART used to program the PIC (with bootloader) as well as Propeller chip.
DVD-ROM:\ CHAM_PIC \ DOCS \ PIC24_REF_MANUAL \ SECTION24-JTAG.pdf
DVD-ROM:\ CHAM_PIC \ DOCS \ ISP_JTAG \ PICKIT2_USER_GUIDE.pdf
Figure 4.1 – The Microchip PICkit 2 programmer.
© 2009 NURVE NETWORKS LLC “Exploring the Chameleon PIC 16-Bit”
rd
party manufacturers sell programmers that are
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