Michael Wilkens / TCA9548

mbed library for the TCA9548 mux

Fork of libTCS34725 by Michael Wilkens

TCA9548.cpp@4:cc00e3842f1b, 2017-03-09 (annotated)

Committer:
mwilkens241
Date:
Thu Mar 09 18:42:41 2017 +0000
Revision:
4:cc00e3842f1b
Parent:
TCS34725.cpp@3:afb107db7994
Child:
6:79996efbdcb2
working mux

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mwilkens241 4:cc00e3842f1b 1 #include "TCA9548.h"
mwilkens241 0:4796574af790 2
mwilkens241 4:cc00e3842f1b 3 TCA9548::TCA9548() : i2c(SDA,SCL) {}
mwilkens241 4:cc00e3842f1b 4 TCA9548::TCA9548(PinName i2c_sda, PinName i2c_scl) : i2c(i2c_sda,i2c_scl) {}
mwilkens241 1:06c9bbbdb8b0 5
mwilkens241 4:cc00e3842f1b 6 void TCA9548::i2cWrite8(uint8_t addr, char data){
mwilkens241 4:cc00e3842f1b 7 char packet[1] = {data & 0xFF};
mwilkens241 4:cc00e3842f1b 8 i2c.write(addr,packet,1,false); //only write address and data ~ no reg
mwilkens241 2:cc2c0831a763 9 wait(0.01);
mwilkens241 0:4796574af790 10 }
mwilkens241 0:4796574af790 11
mwilkens241 4:cc00e3842f1b 12 bool TCA9548::init(uint8_t iCh){
mwilkens241 1:06c9bbbdb8b0 13 i2c.frequency(400000);
mwilkens241 4:cc00e3842f1b 14 channel = iCh;
mwilkens241 4:cc00e3842f1b 15 i2cWrite8(DEV_ADDR,(char)iCh);
mwilkens241 1:06c9bbbdb8b0 16 return true;
mwilkens241 0:4796574af790 17 }
mwilkens241 0:4796574af790 18
mwilkens241 4:cc00e3842f1b 19 bool TCA9548::init(){
mwilkens241 4:cc00e3842f1b 20 i2c.frequency(400000);
mwilkens241 4:cc00e3842f1b 21 channel = 0;
mwilkens241 4:cc00e3842f1b 22 i2cWrite8(DEV_ADDR,0);
mwilkens241 4:cc00e3842f1b 23 wait(0.05);
mwilkens241 4:cc00e3842f1b 24 return true;
mwilkens241 1:06c9bbbdb8b0 25 }
mwilkens241 1:06c9bbbdb8b0 26
mwilkens241 4:cc00e3842f1b 27 void TCA9548::ch(uint8_t newCh){
mwilkens241 4:cc00e3842f1b 28 channel = newCh;
mwilkens241 4:cc00e3842f1b 29 i2cWrite8(DEV_ADDR,(char)newCh);
mwilkens241 4:cc00e3842f1b 30 wait(0.05);
mwilkens241 0:4796574af790 31 }