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digital servo specifications.
• Requires only one Propeller cog, leaving the other
seven for development.
• Fully documented in code comments.
Cost for a single license to run 16 servos on the
Parallax Propeller chip, is $20.
Static RAM Memory
Another new product from Machine Intelligence
Technologies is a memory expansion kit for the
This memory expansion kit supports a five megabyte
block transfer rate and can be used to store program
overlays for the cogs, overlays for Spin code, and large,
fast, bulk data access.
The Memory Expansion Kit expands the Propeller’s
32 Kb internal static RAM. It allows the Propeller to
natively address from 512 Kb additional static RAM up to
16 Mb additional static RAM.
• There is minimum program overhead.
• It requires only four instructions per byte transferred.
• It boasts a transfer rate of 5 Mb per second.
• It can store anything from data to executable Spin
programs to cog programs.
• It uses the Euro Card standard.
• It can store the 16 instruction RISC emulator package
under development to run on the Propeller chip.
• It will support up to eight Propeller processors on our
proprietary Corpus Collosum Bus (currently under
• All external devices such as memory, servos, gigabyte
USB memory devices, etc., may be accessed from any
Propeller chip in the system.
• Further development in the near future includes
adding up to 16 gigabytes of non-volatile RAM
accessed via USB 2.0.
For further information on these three items, please
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54 SERVO 04.2009