Faster i2c

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hi
i trying change i2c clock speed following instructions in past topic here:
http://forum.arduino.cc/index.php?topic=16793.0
as instructed, have changed twi.h file, found in:
..\arduino-1.5.2\hardware\arduino\avr\libraries\wire\utility
i changed definition line from:
code: [select]
#define twi_freq 100000l

to
code: [select]
#define twi_freq 400000l

however can't find wire.o delete. saw in other forums there no more need deleting .o files. in case measure i2c clock speed using scope , doesn't change initial value of 10usec.
any  suggestions?
10x
gil


check i2c scanner - http://forum.arduino.cc/index.php?topic=197360.0 -

you can adjust twbr within sketch, easiest way , can use every ic on max speed.



Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Faster i2c


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