Akash Vibhute / TCA9548A

TCA9548A 8 channel I2C switch with reset

Dependents:   4012Code PWM SBra_Programme_Mbed

tca9548a.cpp

Committer:
akashvibhute
Date:
2016-05-25
Revision:
1:768491b5e55d
Parent:
0:5bd73cede544

File content as of revision 1:768491b5e55d:

/**
 *  TCA9548A library
 *
 *  @author Akash Vibhute
 *  @author < akash . roboticist [at] gmail . com >
 *  @version 0.1
 *  @date May/24/2016
 */
 
#include "tca9548a.h"
 
TCA9548A::TCA9548A( PinName sda, PinName scl, uint8_t i2c_address, PinName resetPin, uint32_t hz ) : i2c_(sda, scl), reset_pin(resetPin)
{
    i2c_addr = i2c_address;
    i2c_.frequency(hz);
}

 
void TCA9548A::select( uint8_t channel )
{
    char data; //create temporary char buffer
    
    if(channel >= 8) return;
    
    data = 1 << channel;
    i2c_.write( i2c_addr << 1, &data, 1);
}
 
void TCA9548A::reset( )
{
    reset_pin = 0;
    wait_ms(1);
    reset_pin = 1;
}