Parallax P2 Edge Module - User Guide

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Pins

Description

RESn

Internally pulled up to 3.3V with 10K resistor.

Propeller chip will reset when RESn driven low; all cogs disabled and I/O pins floating.

Propeller restarts 3 ms after RESn transitions from low to high.

Power input pins for the Edge Module. Connect both 5V edge connector pads to a good

quality 5VDC supply. The supply voltage MUST NOT exceed 5.5V!

Recommended minimum supply current 100mA, up to 3A depending on customer code and

circuit. Factors contributing to current requirements include operating frequency, number of

operating cogs, smart pin instruction types and external I/O circuitry.

GND

Provides common signal and supply voltage ground. Connection of all edge connector GND

pads to a solid ground plane on an external layer recommended.

Not Connected. Reserved for future use.

Recommended “Do Not Connect” in customer designs.

Programming Header Pin Assignments

The P2 Edge Module uses the following markings for the optional programming header pads

located on the back of the module : △ ▽ RESn GND. The arrows point inward (toward) the pad

for RX and outward (away from) the pad for TX.

When using a serial programming device, such as Prop Plug, ensure that the Prop Plug TX pin

connects to the P2 Edge RX pin, and that that Prop Plug RX pin connects to the P2 Edge TX pin.

Programming Software

Propeller Tool is our recommended tool for programming the P2 Edge Module in SPIN and PASM

languages. Other programming languages are possible using third party tools, such as C, BASIC,

Forth.

You can find links to the latest tools at the P2 Edge Module product page. Visit

https://www.parallax.com and search for “P2-EC.”

Resources and Downloads

Check for the latest version of this document, free software, and example programs from the P2

Edge Module product page. Go to www.parallax.com and search P2-EC.

Recommend and Absolute Maximum Ratings

Symbol

Quantity

Recommended

Maximum

Units

5 VDC

DC Barrel Jack Supply Voltage †

5.5

P0 - P63

Any I/O Pin

3.3

3.6

RESn

Reset input, active low

3.3

3.6