Dan Cohen / PreampTDA7419

This library controls a ST TDA7419 audio control IC. This is part of a project to implement an mbed controlled car stereo. The TDA7419 will take in stereo and output four channels of audio plus a subwoofer channel.

Dependents:   car_stereo

PreampTDA7419.cpp@0:86ea14016b10, 2014-10-19 (annotated)

Committer:
danielashercohen
Date:
Sun Oct 19 04:30:22 2014 +0000
Revision:
0:86ea14016b10
Child:
1:69c37f1ab7df
first sound from the TDA7419;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
danielashercohen 0:86ea14016b10 1 /** PreampTDA7419 Library
danielashercohen 0:86ea14016b10 2 *
danielashercohen 0:86ea14016b10 3 * @Author: Dan Cohen
danielashercohen 0:86ea14016b10 4 */
danielashercohen 0:86ea14016b10 5
danielashercohen 0:86ea14016b10 6 #include "mbed.h"
danielashercohen 0:86ea14016b10 7 #include "PreampTDA7419.h"
danielashercohen 0:86ea14016b10 8 #include <stdio.h>
danielashercohen 0:86ea14016b10 9 #include <string.h>
danielashercohen 0:86ea14016b10 10 #include <inttypes.h>
danielashercohen 0:86ea14016b10 11
danielashercohen 0:86ea14016b10 12
danielashercohen 0:86ea14016b10 13
danielashercohen 0:86ea14016b10 14 PreampTDA7419::PreampTDA7419(PinName sda, PinName scl):
danielashercohen 0:86ea14016b10 15 _device(sda, scl)
danielashercohen 0:86ea14016b10 16 {
danielashercohen 0:86ea14016b10 17 _address = (TDA7419_ADDRESS<<1);
danielashercohen 0:86ea14016b10 18 // _device.frequency(100000);
danielashercohen 0:86ea14016b10 19 //_device.frequency(10000);
danielashercohen 0:86ea14016b10 20 //_Comdelay=70;
danielashercohen 0:86ea14016b10 21 }
danielashercohen 0:86ea14016b10 22
danielashercohen 0:86ea14016b10 23
danielashercohen 0:86ea14016b10 24 void PreampTDA7419::setI2CAddress(uint8_t add)
danielashercohen 0:86ea14016b10 25 {
danielashercohen 0:86ea14016b10 26 _address = (add<<1);
danielashercohen 0:86ea14016b10 27 }
danielashercohen 0:86ea14016b10 28
danielashercohen 0:86ea14016b10 29
danielashercohen 0:86ea14016b10 30 int PreampTDA7419::i2c_write(char command, char value) {
danielashercohen 0:86ea14016b10 31 int transmissionSuccessful;
danielashercohen 0:86ea14016b10 32 _device.start();
danielashercohen 0:86ea14016b10 33 _device.write(_address);
danielashercohen 0:86ea14016b10 34 _device.write(command);
danielashercohen 0:86ea14016b10 35 _device.write(value);
danielashercohen 0:86ea14016b10 36 _device.stop();
danielashercohen 0:86ea14016b10 37 return (transmissionSuccessful);
danielashercohen 0:86ea14016b10 38 }
danielashercohen 0:86ea14016b10 39