ESP32 I2S and A2DP not working with A2DP sample rate

Problem Description

I just tried your basic example A2DP to I2S, but my controller just crashes with an IntegerDivideByZero exception. However, when I comment out the line where the I2S sample rate is set to the A2DP sample rate, everything works just fine.

Monitor output:

configsip: 271414342, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1184
load:0x40078000,len:13260
load:0x40080400,len:3028
entry 0x400805e4
[D] I2SStream.h : 55 - bool audio_tools::I2SStream::begin(audio_tools::I2SConfig)
[D] I2SESP32.h : 47 - bool audio_tools::I2SDriverESP32::begin(audio_tools::I2SConfigESP32)
[D] I2SESP32.h : 161 - bool audio_tools::I2SDriverESP32::begin(audio_tools::I2SConfigESP32, int, int)
[I] AudioTypes.h : 104 - sample_rate: 0
[I] AudioTypes.h : 105 - channels: 2
[I] AudioTypes.h : 106 - bits_per_sample: 16
[I] I2SConfigESP32.h : 90 - rx/tx mode: TX_MODE
[I] I2SConfigESP32.h : 91 - port_no: 0
[I] I2SConfigESP32.h : 92 - is_master: Master
[I] I2SConfigESP32.h : 93 - sample rate: 0
[I] I2SConfigESP32.h : 94 - bits per sample: 16
[I] I2SConfigESP32.h : 95 - number of channels: 2
[I] I2SConfigESP32.h : 96 - signal_type: Digital
[I] I2SConfigESP32.h : 98 - i2s_format: I2S_STD_FORMAT
[I] I2SConfigESP32.h : 100 - auto_clear: true
[I] I2SConfigESP32.h : 102 - use_apll: true
[I] I2SConfigESP32.h : 107 - buffer_count:8
[I] I2SConfigESP32.h : 108 - buffer_size:256
[I] I2SConfigESP32.h : 113 - pin_bck: 14
[I] I2SConfigESP32.h : 115 - pin_ws: 15
[I] I2SConfigESP32.h : 117 - pin_data: 23
[D] I2SESP32.h : 193 - i2s_driver_install
Guru Meditation Error: Core  1 panic'ed (IntegerDivideByZero). Exception was unhandled.

Core  1 register dump:
PC      : 0x400d9a50  PS      : 0x00060730  A0      : 0x800da750  A1      : 0x3ffcafb0  
A2      : 0x00000000  A3      : 0x00000000  A4      : 0x3ffdf390  A5      : 0x00000000  
A6      : 0x3ffdf390  A7      : 0x3ffc3c0c  A8      : 0x00000100  A9      : 0x00000002  
A10     : 0x00000000  A11     : 0x00000001  A12     : 0x00000000  A13     : 0x3ffc3c0c  
A14     : 0xffffffbf  A15     : 0x00000008  SAR     : 0x00000020  EXCCAUSE: 0x00000006  
EXCVADDR: 0x00000000  LBEG    : 0x40092670  LEND    : 0x4009267b  LCOUNT  : 0x00000000  

Backtrace: 0x400d9a4d:0x3ffcafb0 0x400da74d:0x3ffcb000 0x400d32f2:0x3ffcb040 0x400d34c9:0x3ffcb0c0 0x400d35d5:0x3ffcb130 0x400d3fe9:0x3ffcb1a0 0x400d7936:0x3ffcb270

  #0  0x400d9a4d:0x3ffcafb0 in i2s_calculate_common_clock at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/driver/i2s.c:1172
      (inlined by) i2s_calculate_clock at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/driver/i2s.c:1230
      (inlined by) i2s_set_clk at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/driver/i2s.c:1701
  #1  0x400da74d:0x3ffcb000 in i2s_driver_install at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/driver/i2s.c:2027
  #2  0x400d32f2:0x3ffcb040 in audio_tools::I2SDriverESP32::begin(audio_tools::I2SConfigESP32, int, int) at .pio/libdeps/adafruit_feather_esp32_v2/audio-tools/src/AudioI2S/I2SESP32.h:194 (discriminator 3)
  #3  0x400d34c9:0x3ffcb0c0 in audio_tools::I2SDriverESP32::begin(audio_tools::I2SConfigESP32) at .pio/libdeps/adafruit_feather_esp32_v2/audio-tools/src/AudioI2S/I2SESP32.h:56
  #4  0x400d35d5:0x3ffcb130 in audio_tools::I2SStream::begin(audio_tools::I2SConfigESP32) at .pio/libdeps/adafruit_feather_esp32_v2/audio-tools/src/AudioI2S/I2SStream.h:56 (discriminator 3)
  #5  0x400d3fe9:0x3ffcb1a0 in setup() at src/main.cpp:40
  #6  0x400d7936:0x3ffcb270 in loopTask(void*) at C:/Users/Malte/.platformio/packages/framework-arduinoespressif32/cores/esp32/main.cpp:42

Device Description

ESP32 Pico Mini D2 (Adafruit ESP32 Feather V2)

Sketch

/**
 * @file basic-a2dp-audioi2s.ino
 * @brief A2DP Sink with output to I2SStream. This example is of small value
 * since my Bluetooth Library already provides I2S output out of the box.
 *
 * @author Phil Schatzmann
 * @copyright GPLv3
 */

#include "BluetoothA2DPSink.h"
#include "AudioTools.h"

BluetoothA2DPSink a2dp_sink;
I2SStream i2s;

// Write data to I2S
void read_data_stream(const uint8_t *data, uint32_t length) {
    i2s.write(data, length);
}

void setup() {
    Serial.begin(115200);
    AudioLogger::instance().begin(Serial, AudioLogger::Debug);

    // register callback
    a2dp_sink.set_stream_reader(read_data_stream, false);

    // Start Bluetooth Audio Receiver
    a2dp_sink.set_auto_reconnect(false);
    a2dp_sink.start("a2dp-i2s");

    // setup output
    auto cfg = i2s.defaultConfig();
    cfg.pin_data = 23;
    cfg.sample_rate = a2dp_sink.sample_rate(); // <- when I comment out this line it's working
    cfg.channels = 2;
    cfg.bits_per_sample = 16;
    cfg.buffer_count = 8;
    cfg.buffer_size = 256;
    i2s.begin(cfg);
}

void loop() { delay(100); }

Other Steps to Reproduce

No response

What is your development environment

PlatformIO and CLion, with the following .ini-file:


platform = espressif32
board = adafruit_feather_esp32_v2
framework = arduino
monitor_speed = 115200
monitor_filters =
    esp32_exception_decoder
board_build.partitions = huge_app.csv
lib_deps =
    https://github.com/pschatzmann/ESP32-A2DP
    https://github.com/pschatzmann/arduino-audio-tools```

### I have checked existing issues, discussions and online documentation

- [X] I confirm I have checked existing issues, discussions and online documentation

pschatzmann / arduino-audio-tools

ESP32 I2S and A2DP not working with A2DP sample rate #1426

Problem Description

Device Description

Sketch

Other Steps to Reproduce

What is your development environment