main.cpp

00001 /**
00002  *  PCA9547 library "Hello world" sample 
00003  *
00004  *  @author  Tedd OKANO
00005  *  @version 0.2
00006  *  @date    Feb-2015
00007  *
00008  *  PCA9547: an I2C bus multiplexer control library
00009  *
00010  *  PCA9547 is an I2C multiplexer which enables to select 1:8 multiplexed I2C bus.
00011  *  The multiplexer is useful for deviding I2C bus to avoiding slave address conflict and separating capacitive loads.
00012  *
00013  *  For more information about PCA9547:
00014  *    http://www.nxp.com/documents/data_sheet/PCA9547.pdf
00015  *
00016  */
00017 
00018 #include "mbed.h"
00019 #include "LM75B.h"
00020 #include "PCA9547.h"
00021 
00022 PCA9547 mux( p28, p27, 0xE0 );
00023     
00024 int main()
00025 {
00026     mux.select( 0 );
00027     
00028     LM75B   tmp0( p28, p27 );   //  making instance after a branch of I2C bus (which is connecting the LM75B) enabled
00029 
00030     while( 1 ) {
00031         printf( "%.3f\r\n", tmp0.read() );
00032         wait( 1.0 );
00033     }
00034 }