Connecting the ssd1306 monitor to the ESP32-LyraT V4.3 board.

[rn6ljk]

Hello to all colleagues!
ESP32-LyraT V4.3 board.
Example PLAY_MP3.
The possibility of connecting the ssd1306 monitor to the i2c bus on the LyraT V4.3 board is being studied.
At the beginning of the playback of a fragment of mp3, the text "S O U N D S T A R T" should be displayed on the monitor.
After playing mp3, the text “F I N I S H S O U N D” should be displayed on the monitor.
SSD1306 is attached to I2C Header / JP5.
The i2c driver and ssd12306 display are initializing.
at the beginning of app_main after which the display shows the text - "S O U N D S T A R T".

…………..
#define SDA_PIN GPIO_NUM_18
#define SCL_PIN GPIO_NUM_23
…………..
void app_main(void)
{
char tout[32]=" S O U N D\n S T A R T\n";
char tout2[32]="\n\n F I N I S H\n S O U N D\n";
i2c_master_init();
ssd1306_init();
…………………………………………………………


ssd1306_display_pattern();
ssd1306_clear();
ssd1306_display_text(tout);
……………………………………
i2c_config_t i2c_config = {
.mode = I2C_MODE_MASTER,
.sda_io_num = SDA_PIN,
.scl_io_num = SCL_PIN,
.sda_pullup_en = GPIO_PULLUP_ENABLE,
.scl_pullup_en = GPIO_PULLUP_ENABLE,
.master.clk_speed = 1000000
};
i2c_param_config(I2C_NUM_0, &i2c_config);
espRc=i2c_driver_install(I2C_NUM_0, I2C_MODE_MASTER, 0, 0, 0);
if (espRc == ESP_OK) {
ESP_LOGI(tag_i2c, "I2C configured successfully");
} else {
ESP_LOGE(tag_i2c, "I2C configuration failed. code: 0x%.2X", espRc);
……………………………………………
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
i2c_master_start(cmd);
i2c_master_write_byte(cmd, (0x3C << 1) | I2C_MASTER_WRITE, true);
i2c_master_write_byte(cmd, 0x00, true);
………………………….
………………………..
…………………………
i2c_master_write_byte(cmd, 0xAF, true);
i2c_master_stop(cmd);
espRc = i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
ESP_LOGI(tag_i2c, "OLED configured successfully");
} else {
ESP_LOGE(tag_i2c, "OLED configuration failed. code: 0x%.2X", espRc);
}
i2c_cmd_link_delete(cmd);
………………………………………………………….
Installing the i2c driver and configuring the ssd1306 is done without errors:
I (23) I2C install: I2C configured successfully
I (23) I2C install: OLED configured successfully
The text "S O U N D S T A R T" is successfully displayed on ssd1306.
After executing the snippet:
audio_pipeline_handle_t pipeline;
audio_element_handle_t i2s_stream_writer, mp3_decoder;
esp_log_level_set("*", ESP_LOG_WARN);
esp_log_level_set(TAG, ESP_LOG_INFO);
the message is displayed:
I (93) PLAY_MP3_FLASH: [ 1 ] Start audio codec chip
E (93) i2c: i2c driver install error
E (93) I2C_BUS: C:/Users/RN6LJK/esp-adf/components/esp_peripherals/driver/i2c_bus/i2c_bus.c:86 (i2c_bus_write_bytes):Handle error
E (103) I2C_BUS: C:/Users/RN6LJK/esp-adf/components/esp_peripherals/driver/i2c_bus/i2c_bus.c:86 (i2c_bus_write_bytes):Handle error
E (113) I2C_BUS: C:/Users/RN6LJK/esp-adf/components/esp_peripherals/driver/i2c_bus/i2c_bus.c:86 (i2c_bus_write_bytes):Handle error
……………………………………………..
……………………………………………..
E (393) I2C_BUS: C:/Users/RN6LJK/esp-adf/components/esp_peripherals/driver/i2c_bus/i2c_bus.c:86 (i2c_bus_write_bytes):Handle error
E (403) AUDIO_HAL: codec init failed!
E (403) AUDIO_BOARD: C:/Users/RN6LJK/esp-adf/components/audio_board/lyrat_v4_3/board.c:55 (audio_board_codec_init): Got NULL Pointer
E (423) AUDIO_HAL: audio_hal handle is null
I (423) PLAY_MP3_FLASH: [ 2 ] Create audio pipeline, add all elements to pipeline, and subscribe pipeline event
I (433) PLAY_MP3_FLASH: [2.1] Create mp3 decoder to decode mp3 file and set custom read callback
I (443) PLAY_MP3_FLASH: [2.2] Create i2s stream to write data to codec chip
I (453) PLAY_MP3_FLASH: [2.3] Register all elements to audio pipeline
I (463) PLAY_MP3_FLASH: [2.4] Link it together [mp3_music_read_cb]-->mp3_decoder-->i2s_stream-->[codec_chip]
I (473) PLAY_MP3_FLASH: [ 3 ] Set up event listener
I (473) PLAY_MP3_FLASH: [3.1] Listening event from all elements of pipeline
I (483) PLAY_MP3_FLASH: [ 4 ] Start audio_pipeline
I (503) PLAY_MP3_FLASH: [ * ] Receive music info from mp3 decoder, sample_rates=44100, bits=16, ch=2
I (7253) PLAY_MP3_FLASH: [ 5 ] Stop audio_pipeline
The piece of music is played, after which a message is displayed:
W (7253) AUDIO_ELEMENT: [mp3] Element already stopped
W (7253) AUDIO_ELEMENT: [i2s] Element already stopped
W (7263) AUDIO_PIPELINE: There are no listener registered
W (7263) AUDIO_ELEMENT: [i2s] Element has not create when AUDIO_ELEMENT_TERMINATE
W (7273) AUDIO_ELEMENT: [mp3] Element has not create when AUDIO_ELEMENT_TERMINATE
W (7253) AUDIO_ELEMENT: [mp3] Element already stopped
W (7253) AUDIO_ELEMENT: [i2s] Element already stopped
W (7263) AUDIO_PIPELINE: There are no listener registered
W (7263) AUDIO_ELEMENT: [i2s] Element has not create when AUDIO_ELEMENT_TERMINATE
W (7273) AUDIO_ELEMENT: [mp3] Element has not create when AUDIO_ELEMENT_TERMINATE
The example ends with the code:
espRc = i2c_master_cmd_begin(I2C_NUM_0, cmd, 10/portTICK_PERIOD_MS);
if (espRc == ESP_OK) {
ESP_LOGI(tag_i2c, "OLED pattern successfully");
} else {
ESP_LOGE(tag_i2c, "OLED pattern failed. code: 0x%.2X", espRc);
}
i2c_cmd_link_delete(cmd);
Then a message is displayed:
E (8293) I2C install: OLED pattern failed. code: 0x107
The text "F I N I S H S O U N D" is successfully displayed on ssd1306.
Similar errors appear when connecting sd1306 to LyraT V4.3 board and executing VOIP, PLAY_MP3, wifi_bt_ble_coex examples.
If you specify the I2C_NUM_1 parameter when installing the i2c driver, then the specified error does not appear. In my opinion, this is not a solution to the problem.
In the VOPI example, when the monitor ssd13406 is connected to the i2c bus, an error appears:
C:/Users/RN6LJK/esp-idf/components/freertos/queue.c:1443 (xQueueGenericReceive)- assert failed!
abort() was called at PC 0x40089925 on core 0

ELF file SHA256: 895b63434a320f65e686dc735c53e36adcf5e7c5a53085091db30b79765a9abc

Backtrace: 0x4008d70c:0x3ffccdc0 0x4008d955:0x3ffccde0 0x40089925:0x3ffcce00 0x40082481:0x3ffcce40 0x400d4e49:0x3ffcce70 0x400d4801:0x3ffccec0 0x400d49a2:0x3ffccee0 0x40176373:0x3ffccf10 0x400e5246:0x3ffccf30 0x400e5606:0x3ffccf60 0x400e595e:0x3ffccf80 0x400e614e:0x3ffccfa0
Who faced this problem?
Please share your results.
Thanks.