TDA7439

STM32 LL(Low-Layer) C library. TDA7439 is a three-band digitally-controlled audio processor.
See datasheet: link

Features

• Full feature support(volume, bass, treble etc)
• Easy to use
• No HAL dependencies

Add as CPM project dependency

How to add CPM to the project, check the link

CPMAddPackage(
        NAME TDA7439
        GITHUB_REPOSITORY ximtech/TDA7439
        GIT_TAG origin/main)

Project configuration

1. Start project with STM32CubeMX:
   • I2C configuration
2. Select: Project Manager -> Advanced Settings -> I2C -> LL
3. Generate Code
4. Add sources to project:

add_subdirectory(${STM32_CORE_SOURCE_DIR}/I2C/Polling)  # add I2C to project

include_directories(${TDA7439_DIRECTORY})   # source directories
file(GLOB_RECURSE SOURCES ${TDA7439_SOURCES})    # source files

3. Then Build -> Clean -> Rebuild Project

Wiring

• 

Usage

NOTE: For correct IC work need use level converter

#include "TDA7439.h"

int main() {

   I2CStatus processorStatus = initTDA7439(I2C1);
   if (processorStatus != I2C_OK) {
        Error_Handler();
   }

   setStereoInputTDA7439(TDA7439_INPUT_1); // switch to sound source input
   setInputGainTDA7439(TDA7439_GAIN_14dB);
   setVolumeTDA7439(TDA7439_VOLUME_MINUS_6dB);

   setRightSpeakerAttenuationTDA7439(TDA7439_ATTENUATION_0dB); // set default attenuation, otherwise speakers will be muted
   setLeftSpeakerAttenuationTDA7439(TDA7439_ATTENUATION_0dB);
   
}