Parallax P8X32A User manual

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P8X32A QuickStart Proto Board PCB (#300-40010)
P8X32A QuickStart Proto Board Kit (#40010)
This through-hole prototyping add-on for the P8X32A QuickStart is available as a bare pcb
#300-40010) or as a kit that also includes mounting hardware and a stackable header
#40010).
Features
Compatible with the P8X32A
QuickStart
3.42 square inches of through-
hole prototyping area
Through-hole access to all lines
in the 40-pin QuickStart socket
Additional through-hole access to
all control signals and power rails
Two mounting options
Kit option includes mounting
hardware and stackable header
imensions
PCB only 2.0 x 3.0 x 0.73 in (5.0
x 7.6 x 1.8 cm
Assembled kit: 2.0 x 3.0 x 0.73 in (5.0 x 7.6 x 1.8 cm
P8X32A QuickStart Proto Board Kit Packing List (#40010 only)
P8X32A QuickStart Proto Board PCB #300-40010)
40-pin stackable socket
6) nylon pan-head M3 screws
4) nylon M3 hex standoffs
6) nylon M3 nuts
2 nylon washers
Additional Items Required
Soldering iron
Solder
Safety glasses
Copyright © Parallax Inc. P8X32A QuickStart Proto Board Kit (#40010 v1.1 4/17/2012 Page 1 of 7

Kit Assembly Instructions
The P8X32A QuickStart Proto Board Kit can be permanently assembled to either overlap the
P8X32A QuickStart or to overhang one edge. The overlapping configuration requires less
space, and the overhanging configuration provides access to the LEDs, touch buttons, and
reset button on the P8X32A QuickStart. Use care in selecting the appropriate configuration,
as it cannot be changed after the socket is soldered.
The following instructions show steps for the overlapping configuration in the left column
and steps for the overhanging configuration in the right column.
Step 1
Choose a configuration.
Overlapping Configuration Overhanging Configuration
The overlapping configuration requires less
space.
The overhanging configuration provides
access to the LEDs, touch buttons, and
reset button on the P8X32A QuickStart.
Copyright © Parallax Inc. P8X32A QuickStart Proto Board Kit (#40010 v1.1 4/17/2012 Page 2 of 7

Step 2
Insert the 20-pin socket.
For the overlapping configuration, the
“PARALLAX SEMICONDUCTOR” label should
be visible from the top side. Insert the
socket between the label and the closest
edge of the board.
For the overhanging configuration, the
“P8X32A QuickStart Proto Board” label
should be visible from the top side. Insert
the socket between the label and the
closest edge of the board.
Step 3
Solder the 20-pin header header into place.
For the overlapping configuration, the text
“P8X32A QuickStart Proto Board”
should be visible from the solder side.
For the overhanging configuration, the text
“PARALLAX SEMICONDUCTOR” should be
visible from the solder side.
Copyright © Parallax Inc. P8X32A QuickStart Proto Board Kit (#40010 v1.1 4/17/2012 Page 3 of 7

Step 4
Install the standoffs.
For the overlapping configuration, install
the standoffs into all four mounting holes of
the P8X32A QuickStart and tighten each
into a nut.
For the overhanging configuration, install
standoffs into the two mounting holes of
the P8X32A QuickStart, closest to the 40-
pin socket, and tighten each into a nut.
Install pan-head screws into the remaining
holes and tighten each into a nut.
Install the remaining two standoffs into the
P8X32A QuickStart Proto Board mounting
holes on the side opposite the 20-pin
socket, using the pan-head screws. The
screw heads should be on the side of the
board with the “P8X32A QuickStart
Proto Board” label, and the headers
should be on the side of the board with the
“PARALLAX SEMICONDUCTOR” label.
Place the washers onto the threaded
portion of the standoffs installed on the
P8X32A QuickStart Proto Board, then
tighten a nut into each standoff.
Copyright © Parallax Inc. P8X32A QuickStart Proto Board Kit (#40010 v1.1 4/17/2012 Page 4 of 7

Step 5
Install the P8X32A QuickStart Proto Board into the P8X32A QuickStart.
For the overlapping configuration, connect
the P8X32A QuickStart Proto Board into the
P8X32A QuickStart, as pictured, and screw
it into place with the pan-head screws.
For the overhanging configuration, connect
the P8X32A QuickStart Proto Board into the
P8X32A QuickStart, as pictured, and screw
it into place with the pan-head screws.
ownloads and Resources
Check for the latest version of this document, free software, and example programs from the
P8X32A QuickStart Proto Board product page. Go to www.parallax.com and search for 40010.
Pin efinitions
Name Type Function
SCL I/O I2C serial clock pin. Pulled to Vdd. Connected to the built-in EEPROM. Can be
connected to external I2C devices. Shared with Propeller I/O pin P28.
SDA I/O I2C serial data pin. Pulled to Vdd. Connected to the built-in EEPROM. Can be
connected to external I2C devices. Shared with Propeller I/O pin P29.
TX I/O Propeller transmit at start-up. General purpose input/output pin after start-up.
Connected to the USB to serial converter receive pin.
RX I/O
Propeller receive at start-up. General purpose input/output pin after start-up
Connected to the USB to serial converter transmit pin. Do not drive when the USB
circuitry is powered.
RESn I/O Propeller reset pin, inverted. Pulled to Vdd. Driven low on internal reset. Drive low to
externally reset the Propeller.
/USB I/O
USB power enable pin, inverted. Pulled to USB 5 V supply. Internally driven low after
successful USB power negotiation. Can be externally driven low to force the USB
power input to drive the QuickStart power supply, such as when powering from a USB
charger.
XI Input Propeller clock input. Do not load when not in use. Can drive the Propeller clock from
an external signal, using the XINPUT directive.
/RTS Output USB to serial converter Request To Send, inverted.
/CTS Input USB to serial converter Clear To Send, inverted.
3.3V Power
Propeller power supply. Internally driven to a nominal 3.3 volts with sufficient voltage
on the VIN pin, or from the USB bus when /USB_PWR_EN is low. When not powered
from VIN or the USB port, can be driven with 2.7 to 3.6 volts.
VIN Power Voltage regulator input. When not powered from 3.3 V, can be driven with 4 to 9 volts.
VSS Power Ground
Copyright © Parallax Inc. P8X32A QuickStart Proto Board Kit (#40010 v1.1 4/17/2012 Page 5 of 7

imensions and Connection iagram
(All dimensions in inches)
Additional Connections
All pins on the 40-pin QuickStart header are duplicated for through-hole soldering access.
See the above diagram for pin functions. All control signals are also available along the
edge of the edge of the board and include labels indicating their function.
For the overlapping configuration,
use the labels on the same side of
the board as the "PARALLAX
SEMICONDUCTOR" text. The labels
on the opposite side of the board
will not match the pins functions.
For the overhanging configuration,
use the labels on the same side of
the board as the "P8X32A QuickStart
Proto Board" text. The labels on the
opposite side of the board will not
match the pins functions.
Copyright © Parallax Inc. P8X32A QuickStart Proto Board Kit (#40010 v1.1 4/17/2012 Page 6 of 7

Revision history
Version 1.0
Original document
Version 1.1
Fixed incorrect labeling information in “Additional Connections” section
Copyright © Parallax Inc. P8X32A QuickStart Proto Board Kit (#40010 v1.1 4/17/2012 Page 7 of 7

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40010 300-40010