PCA9547: an I2C bus multiplexer control library. PCA9547 is an I2C multiplexer which enables to select 1:8 multiplexed I2C bus. The multiplexer is useful for deviding I2C bus to avoiding slave address conflict and separating capacitive loads. For more information about PCA9547: http://www.nxp.com/documents/data_sheet/PCA9547.pdf
Dependents: pca9547_Hello m3Dpi
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PCA9547.cpp
- Committer:
- okano
- Date:
- 2014-07-01
- Revision:
- 0:662ab6a5aa97
- Child:
- 1:47f2cf4c6619
File content as of revision 0:662ab6a5aa97:
#include "PCA9547.h" PCA9547::PCA9547( PinName sda, PinName scl, char i2c_address ) : i2c( sda, scl ), _i2c_addr( i2c_address ) { // do nothing. // leave it in default state. } PCA9547::~PCA9547() { } void PCA9547::select( char channel ) { char data = 0x08 | channel; i2c.write( _i2c_addr, &data, 1); }