strange things happening with H-bridge in PCB view

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there are two strange things that i notice after wiring the h-bridge

1)The first issue may be a matter of pin mapping. Fritzing seems to think
pin 1Y on the h-bridge should be attached to ground in the PCB view.

2)The 2nd think i noticed, I believe was intended as feature rather than a
bug: of the 4 ground/heatsinking pins on the h-bridge, fritzing only wires
1 of the 4 when autorouting.  The case of the h-bridge may be a little
different than arduino since the h-bridge allows for two voltage sources on
each side, the two grounds may be isolated.  Also, as the wires serve as
heat sinks, it might be helpful if the circuit has all it's possible
ground/heat sink wires attached to ground.  

Original issue reported on code.google.com by jenn...@gmail.com on 14 Jan 2009 at 10:48

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I took a multimeter to an hbridge that i had and it looks as though all 4 pins 
(the 2
grounds and the 2 heatsinks) are independent of each other - meaning there is 
not an
internal ground bus between the two ground pins and the heat sink pins.  This 
is an
interesting (annoying) case to consider when dealing with autorouting

Original comment by jenn...@gmail.com on 14 Jan 2009 at 11:13

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I think we can solve this by looking at the datasheet.

Original comment by brendan....@gmail.com on 14 Jan 2009 at 11:54

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the autorouting part of the problem is fixed in r2194--it had been treating the 
pins
as if they were all on the same bus.

Original comment by irasc...@gmail.com on 16 Jan 2009 at 9:39

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Original comment by jenn...@gmail.com on 21 Jan 2009 at 5:29

• Changed state: Fixed