Michael Wilkens / TCA9548

mbed library for the TCA9548 mux

Fork of libTCS34725 by Michael Wilkens

TCA9548.cpp

Committer:
mwilkens241
Date:
2017-03-31
Revision:
6:79996efbdcb2
Parent:
4:cc00e3842f1b

File content as of revision 6:79996efbdcb2:

#include "TCA9548.h"

TCA9548::TCA9548() : i2c(PB_9,PB_8) {}
TCA9548::TCA9548(PinName i2c_sda, PinName i2c_scl) : i2c(i2c_sda,i2c_scl) {}

void TCA9548::i2cWrite8(uint8_t addr, char data){
    char packet[1] = {data & 0xFF}; 
    i2c.write(addr,packet,1,false); //only write address and data ~ no reg
    wait(0.01);
}

bool TCA9548::init(uint8_t iCh){
    i2c.frequency(400000);
    channel = iCh;
    i2cWrite8(DEV_ADDR,(char)iCh);
    return true;
}

bool TCA9548::init(){
    i2c.frequency(400000);
    channel = 0;
    i2cWrite8(DEV_ADDR,0);
    wait(0.05);
    return true;
}

void TCA9548::ch(uint8_t newCh){
    channel = newCh;
    i2cWrite8(DEV_ADDR,(char)newCh);
    wait(0.05);
}