MicroPropUnit, just a tiny, standard component Propeller board, targeted for
GrabschKam (and more)...
Features:
Hardware
V1.0 schematic...
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...and test layout
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to be written...
Circuit Description
There is not much to say about this standard (but customized) Propeller board, but just
to make sure you don't miss anything:
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Power Supply
Power supply can either be 4-15V, attached to "+Ub" on JP1 or JP2 or regulated
+3.3V on JP1 and JP3.
If you decide to power the circuit via "+3V3", leave +5V unconnected!
Attaching power to the 4-14V input "+Ub" (5V recommended) is probably the best
choice. Internal 3.3V-Propeller supply is generated via the LF33.
If you have additional, external stuff operating at the 3.3V rail, keep an eye on
the LF33 power dissipation.
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Pins
Pins, well...
They are connected to JP1, JP2 and JP3 ;-)
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Video
JP2 offers a Propeller-standard VGA interface.
Notice that P16 (VSYNC) is also fed to JP3-7.
In case you don't use VGA, you have a full 8 bit port available at JP3.
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Programming/Serial
X2 is a Propeller-standard "Mini-Clip" (or MiniFTDI) interface,
usually used for programming the EEPROM or serial communication.
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LED
LEDs are made of people. Everyone wants one...
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Some Useless Pics
Download
MicroPropUnit:
Includes:
- schematic (PDF)
- placement drawing (PDF)
- layout, Gerber (xxx)
DOWNLOAD: MicroPropUnit_hard_V11.zip Hardware, V1.1
ASkr 02/2011: initial public release V1.0
ASkr 01/2013: V11, updated placement drawing; now Eagle V6
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