Overview
The Stamp Pak I is a 32-bit floating-point math
coprocessor with a versatile interface that makes it
easy to interface it with a variety of
microcontrollers including the Basic Stamp from
Parallax. However, you can easily interface the
Pak I with practically any modern microprocessor.
The Pak I can add, subtract, multiply, and divide
numbers between +/- 6.80564693 x 10
38
. The
smallest number the Pak I can represent is +/-
1.17549435 x 10
-38
. Here are some of the Pak I's
major features:
•
Robust, speed independent serial interface
•
Uses as few as 2 pins to connect to the host
•
Can connect multiple devices to the same 2
pins with one additional pin per device
•
Can work with IEEE754 floating point
numbers
•
Works with Stamp II's ShiftOut and ShiftIn
commands
•
Synchronous operation – read results when you
are ready for them
•
Adds 8-bits of general-purpose digital I/O pins
•
Fast 10Mhz speed (can be reduced to save
power)
•
Easy to use
The Pak I is a standard 18-pin IC. In order to
operate it must have a regulated supply of 5V and
connection to a clock element. The Stamp Pak I
includes a 10MHz ceramic resonator that you can
use to clock the chip.
Other than the power and clock connections, the
Pak I requires at least two wires to connect
between your microcontroller (the host) and itself.
Depending on the host's capabilities and your
application, you may want to use more pins for I/O
(up to 5 pins).
If You Need Help
If you require assistance with your PAK-I, please
feel free to contact us. The best way to get support
is via e-mail (stamp@al-williams.com). However,
you may also call between 9AM - 4PM Central
Time at (281) 334-4341. You can also fax to (281)
538-2147. Be sure to check out our Web page for
updates at www.al-williams.com/awce.htm.
Registering Your PAK-I
Please take a moment to register your e-mail
address with AWC. Simply send an e-mail
message to pakreg@al-williams.com. AWC will
not make your address available to other
companies, but we may periodically send you
updated technical notes. You’ll also receive
information about new microcontroller products
and specials.
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