- 中文版本
- Basic Example:
This example demonstrates the Hands Free Profile (HFP) API for receiving and sending audio streams in the ESP-ADF.
The pipeline is as follows:
[Bluetooth] ---> hfp_in_stream ---> i2s_stream_writer ---> [codec_chip]
This example runs on the boards that are marked with a green checkbox in the table. Please remember to select the board in menuconfig as discussed in Section Configuration below.
This example supports IDF release/v3.3 and later branches. By default, it runs on ADF's built-in branch $ADF_PATH/esp-idf.
The default board for this example is ESP32-Lyrat V4.3. If you need to run this example on other development boards, select the board in menuconfig, such as ESP32-Lyrat-Mini V1.1.
menuconfig > Audio HAL > ESP32-Lyrat-Mini V1.1
Build the project and flash it to the board, then run monitor tool to view serial output (replace PORT with your board's serial port name):
idf.py -p PORT flash monitor
To exit the serial monitor, type Ctrl-].
See ESP-IDF Programming Guide for full steps to configure and build an ESP-IDF project.
- After the example starts running, it waits for the Bluetooth devices such as phones to establish connection actively. The HFP device name is
ESP-ADF-HFP. The log is as follows:
rst:0x1 (POWERON_RESET),boot:0x1f (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:7204
load:0x40078000,len:13212
load:0x40080400,len:4568
0x40080400: _init at ??:?
entry 0x400806f4
I (27) boot: ESP-IDF v4.2.2-1-g379ca2123 2nd stage bootloader
I (27) boot: compile time 10:43:35
I (27) boot: chip revision: 3
I (31) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (38) boot.esp32: SPI Speed : 40MHz
I (43) boot.esp32: SPI Mode : DIO
I (47) boot.esp32: SPI Flash Size : 2MB
I (52) boot: Enabling RNG early entropy source...
I (57) boot: Partition Table:
I (61) boot: ## Label Usage Type ST Offset Length
I (68) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (76) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (83) boot: 2 factory factory app 00 00 00010000 00124f80
I (91) boot: End of partition table
I (95) boot_comm: chip revision: 3, min. application chip revision: 0
I (102) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x29164 (168292) map
I (175) esp_image: segment 1: paddr=0x0003918c vaddr=0x3ffbdb60 size=0x03454 ( 13396) load
I (181) esp_image: segment 2: paddr=0x0003c5e8 vaddr=0x40080000 size=0x03a30 ( 14896) load
0x40080000: _WindowOverflow4 at /hengyongchao/esp-idfs/esp-idf-v4.2.2-psram/components/freertos/xtensa/xtensa_vectors.S:1730
I (188) esp_image: segment 3: paddr=0x00040020 vaddr=0x400d0020 size=0xa2e04 (667140) map
0x400d0020: _stext at ??:?
I (445) esp_image: segment 4: paddr=0x000e2e2c vaddr=0x40083a30 size=0x13834 ( 79924) load
0x40083a30: esp_flash_erase_region at /hengyongchao/esp-idfs/esp-idf-v4.2.2-psram/components/spi_flash/esp_flash_api.c:313
I (492) boot: Loaded app from partition at offset 0x10000
I (493) boot: Disabling RNG early entropy source...
I (493) cpu_start: Pro cpu up.
I (497) cpu_start: Application information:
I (501) cpu_start: Project name: pipeline_hfp_stream_example
I (508) cpu_start: App version: v2.2-230-g511116d7
I (514) cpu_start: Compile time: Nov 12 2021 10:43:27
I (520) cpu_start: ELF file SHA256: 2c459d66b8a1bbd8...
I (526) cpu_start: ESP-IDF: v4.2.2-1-g379ca2123
I (532) cpu_start: Starting app cpu, entry point is 0x400819ec
0x400819ec: call_start_cpu1 at /hengyongchao/esp-idfs/esp-idf-v4.2.2-psram/components/esp32/cpu_start.c:287
I (0) cpu_start: App cpu up.
I (543) heap_init: Initializing. RAM available for dynamic allocation:
I (549) heap_init: At 3FFAFF10 len 000000F0 (0 KiB): DRAM
I (555) heap_init: At 3FFB7468 len 00000B98 (2 KiB): DRAM
I (561) heap_init: At 3FFB9A20 len 00004108 (16 KiB): DRAM
I (568) heap_init: At 3FFCE0E8 len 00011F18 (71 KiB): DRAM
I (574) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (580) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (587) heap_init: At 40097264 len 00008D9C (35 KiB): IRAM
I (593) cpu_start: Pro cpu start user code
I (611) spi_flash: detected chip: gd
I (612) spi_flash: flash io: dio
W (612) spi_flash: Detected size(8192k) larger than the size in the binary image header(2048k). Using the size in the binary image header.
I (622) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (673) HFP_EXAMPLE: [ 1 ] init Bluetooth
I (673) BTDM_INIT: BT controller compile version [ba56601]
I (673) system_api: Base MAC address is not set
I (683) system_api: read default base MAC address from EFUSE
I (683) phy_init: phy_version 4660,0162888,Dec 23 2020
I (1413) HFP_EXAMPLE: [ 2 ] Start codec chip
I (1423) gpio: GPIO[19]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:3
I (1443) gpio: GPIO[21]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (1443) ES8388_DRIVER: init,out:02, in:00
I (1453) AUDIO_HAL: Codec mode is 3, Ctrl:1
I (1453) HFP_EXAMPLE: [ 3 ] Create audio pipeline for playback
I (1453) HFP_EXAMPLE: [3.1] Create i2s stream to write data to codec chip and read data from codec chip
I (1463) I2S: DMA Malloc info, datalen=blocksize=1200, dma_buf_count=3
I (1473) I2S: DMA Malloc info, datalen=blocksize=1200, dma_buf_count=3
I (1503) I2S: APLL: Req RATE: 44100, real rate: 44099.988, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 11289597.000, SCLK: 1411199.625000, diva: 1, divb: 0
I (1503) LYRAT_V4_3: I2S0, MCLK output by GPIO0
W (1513) I2S: I2S driver already installed
I (1513) LYRAT_V4_3: I2S0, MCLK output by GPIO0
I (1523) HFP_EXAMPLE: [3.2] Get hfp stream
I (1523) HFP_STREAM: outgoing stream init
I (1533) HFP_STREAM: incoming stream init
I (1533) HFP_EXAMPLE: [3.2] Register all elements to audio pipeline
I (1543) HFP_EXAMPLE: [3.3] Link it together [Bluetooth]-->hfp_in_stream-->i2s_stream_writer-->[codec_chip]
I (1553) AUDIO_PIPELINE: link el->rb, el:0x3ffd8944, tag:incoming, rb:0x3ffd8d00
I (1563) AUDIO_PIPELINE: link el->rb, el:0x3ffd7f78, tag:i2s_reader, rb:0x3ffdae3c
I (1563) HFP_EXAMPLE: [ 4 ] Initialize peripherals
E (1573) gpio: gpio_install_isr_service(438): GPIO isr service already installed
I (1583) HFP_EXAMPLE: [ 5 ] Set up event listener
I (1583) HFP_EXAMPLE: [5.1] Listening event from all elements of pipeline
I (1593) HFP_EXAMPLE: [5.2] Listening event from peripherals
I (1603) HFP_EXAMPLE: [ 6 ] Start audio_pipeline
I (1603) AUDIO_ELEMENT: [incoming-0x3ffd8944] Element task created
I (1613) AUDIO_ELEMENT: [i2s_writer-0x3ffd8304] Element task created
I (1623) AUDIO_PIPELINE: Func:audio_pipeline_run, Line:359, MEM Total:133920 Bytes
I (1633) AUDIO_ELEMENT: [i2s_writer] AEL_MSG_CMD_RESUME,state:1
I (1633) I2S_STREAM: AUDIO_STREAM_WRITER
I (1643) AUDIO_PIPELINE: Pipeline started
I (1643) HFP_EXAMPLE: [ 7 ] Listen for all pipeline events- In this example, the phone finds
ESP-ADF-HFPand connects to it successfully. The log is as follows:
W (36303) BT_APPL: new conn_srvc id:27, app_id:1
I (36313) HFP_STREAM: APP HFP event: CONNECTION_STATE_EVT
I (36313) HFP_STREAM: --Connection state connected, peer feats 0x0, chld_feats 0x0
I (36443) HFP_STREAM: APP HFP event: NETWORK_STATE_EVT
I (36443) HFP_STREAM: --NETWORK state available
I (36443) HFP_STREAM: APP HFP event: CALL_IND_EVT
I (36453) HFP_STREAM: --Call indicator NO call in progress
I (36453) HFP_STREAM: APP HFP event: CALL_SETUP_IND_EVT
I (36463) HFP_STREAM: --Call setup indicator NONE
I (36463) HFP_STREAM: APP HFP event: BATTERY_LEVEL_IND_EVT
I (36473) HFP_STREAM: --Battery level 5
I (36483) HFP_STREAM: APP HFP event: SIGNAL_STRENGTH_IND_EVT
I (36483) HFP_STREAM: --Signal strength: 5
I (36483) HFP_STREAM: APP HFP event: ROAMING_STATUS_IND_EVT
I (36493) HFP_STREAM: --ROAMING: inactive
I (36503) HFP_STREAM: APP HFP event: CALL_HELD_IND_EVT
I (36503) HFP_STREAM: --Call held indicator NONE held
I (36513) HFP_STREAM: APP HFP event: CONNECTION_STATE_EVT
I (36513) HFP_STREAM: --Connection state slc_connected, peer feats 0x3ef, chld_feats 0x3f
I (36523) HFP_STREAM: APP HFP event: INBAND_RING_TONE_EVT
I (36533) HFP_STREAM: --Inband ring state Provided
I (94813) HFP_STREAM: APP HFP event: BATTERY_LEVEL_IND_EVT
I (94813) HFP_STREAM: --Battery level 2
I (94833) HFP_STREAM: APP HFP event: VOLUME_CONTROL_EVT
I (94843) HFP_STREAM: --Volume_target: SPEAKER, volume 7
E (94873) BT_BTM: btm_sco_connected, handle 180
I (94873) HFP_STREAM: APP HFP event: AUDIO_STATE_EVT
I (94873) HFP_STREAM: --Audio state connected_msbc
I (94873) HFP_EXAMPLE: bt_app_hf_client_audio_open type = 1
I (94903) I2S: APLL: Req RATE: 16000, real rate: 15999.986, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 4095996.500, SCLK: 511999.562500, diva: 1, divb: 0
I (95093) AUDIO_ELEMENT: [i2s_writer] AEL_MSG_CMD_PAUSE
I (95123) I2S: APLL: Req RATE: 16000, real rate: 15999.986, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 4095996.500, SCLK: 511999.562500, diva: 1, divb: 0
I (95133) AUDIO_ELEMENT: [i2s_writer] AEL_MSG_CMD_RESUME,state:4
I (95143) I2S_STREAM: AUDIO_STREAM_WRITER
I (95143) AUDIO_ELEMENT: [i2s_reader-0x3ffd7f78] Element task created
I (95153) AUDIO_ELEMENT: [outgoing-0x3ffd8624] Element task created
I (95153) AUDIO_PIPELINE: Func:audio_pipeline_run, Line:359, MEM Total:124940 Bytes
I (95163) AUDIO_ELEMENT: [i2s_reader] AEL_MSG_CMD_RESUME,state:1
I (95173) I2S_STREAM: AUDIO_STREAM_READER,Rate:16000,ch:1
I (95183) AUDIO_PIPELINE: Pipeline started
I (95233) I2S: APLL: Req RATE: 16000, real rate: 15999.986, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 4095996.500, SCLK: 511999.562500, diva: 1, divb: 0
I (95233) AUDIO_ELEMENT: [i2s_reader] AEL_MSG_CMD_RESUME,state:3
I (95803) HFP_STREAM: APP HFP event: ROAMING_STATUS_IND_EVT
I (95803) HFP_STREAM: --ROAMING: active- Use this device to answer incoming calls. The log is as follows:
I (108073) gpio: GPIO[21]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
W (108073) HEADPHONE: Headphone jack inserted
I (123143) HFP_STREAM: APP HFP event: BATTERY_LEVEL_IND_EVT
I (123153) HFP_STREAM: --Battery level 3
I (123273) HFP_STREAM: APP HFP event: CALL_SETUP_IND_EVT
I (123273) HFP_STREAM: --Call setup indicator INCOMING
I (123273) HFP_STREAM: APP HFP event: BATTERY_LEVEL_IND_EVT
I (123273) HFP_STREAM: --Battery level 0
I (207163) HFP_STREAM: APP HFP event: AUDIO_STATE_EVT
I (207163) HFP_STREAM: --Audio state disconnected
I (207163) HFP_EXAMPLE: bt_app_hf_client_audio_close
I (207173) AUDIO_ELEMENT: [i2s_reader] AEL_MSG_CMD_PAUSE
I (207173) HFP_STREAM: APP HFP event: CALL_SETUP_IND_EVT
I (207183) HFP_STREAM: --Call setup indicator NONE
#FEAT# ATTE2 status:0A complete log is as follows:
rst:0x1 (POWERON_RESET),boot:0x1f (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:7204
load:0x40078000,len:13212
load:0x40080400,len:4568
0x40080400: _init at ??:?
entry 0x400806f4
I (27) boot: ESP-IDF v4.2.2-1-g379ca2123 2nd stage bootloader
I (27) boot: compile time 10:43:35
I (27) boot: chip revision: 3
I (31) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (38) boot.esp32: SPI Speed : 40MHz
I (43) boot.esp32: SPI Mode : DIO
I (47) boot.esp32: SPI Flash Size : 2MB
I (52) boot: Enabling RNG early entropy source...
I (57) boot: Partition Table:
I (61) boot: ## Label Usage Type ST Offset Length
I (68) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (76) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (83) boot: 2 factory factory app 00 00 00010000 00124f80
I (91) boot: End of partition table
I (95) boot_comm: chip revision: 3, min. application chip revision: 0
I (102) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x29164 (168292) map
I (175) esp_image: segment 1: paddr=0x0003918c vaddr=0x3ffbdb60 size=0x03454 ( 13396) load
I (181) esp_image: segment 2: paddr=0x0003c5e8 vaddr=0x40080000 size=0x03a30 ( 14896) load
0x40080000: _WindowOverflow4 at /hengyongchao/esp-idfs/esp-idf-v4.2.2-psram/components/freertos/xtensa/xtensa_vectors.S:1730
I (188) esp_image: segment 3: paddr=0x00040020 vaddr=0x400d0020 size=0xa2e04 (667140) map
0x400d0020: _stext at ??:?
I (445) esp_image: segment 4: paddr=0x000e2e2c vaddr=0x40083a30 size=0x13834 ( 79924) load
0x40083a30: esp_flash_erase_region at /hengyongchao/esp-idfs/esp-idf-v4.2.2-psram/components/spi_flash/esp_flash_api.c:313
I (492) boot: Loaded app from partition at offset 0x10000
I (493) boot: Disabling RNG early entropy source...
I (493) cpu_start: Pro cpu up.
I (497) cpu_start: Application information:
I (501) cpu_start: Project name: pipeline_hfp_stream_example
I (508) cpu_start: App version: v2.2-230-g511116d7
I (514) cpu_start: Compile time: Nov 12 2021 10:43:27
I (520) cpu_start: ELF file SHA256: 2c459d66b8a1bbd8...
I (526) cpu_start: ESP-IDF: v4.2.2-1-g379ca2123
I (532) cpu_start: Starting app cpu, entry point is 0x400819ec
0x400819ec: call_start_cpu1 at /hengyongchao/esp-idfs/esp-idf-v4.2.2-psram/components/esp32/cpu_start.c:287
I (0) cpu_start: App cpu up.
I (543) heap_init: Initializing. RAM available for dynamic allocation:
I (549) heap_init: At 3FFAFF10 len 000000F0 (0 KiB): DRAM
I (555) heap_init: At 3FFB7468 len 00000B98 (2 KiB): DRAM
I (561) heap_init: At 3FFB9A20 len 00004108 (16 KiB): DRAM
I (568) heap_init: At 3FFCE0E8 len 00011F18 (71 KiB): DRAM
I (574) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (580) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (587) heap_init: At 40097264 len 00008D9C (35 KiB): IRAM
I (593) cpu_start: Pro cpu start user code
I (611) spi_flash: detected chip: gd
I (612) spi_flash: flash io: dio
W (612) spi_flash: Detected size(8192k) larger than the size in the binary image header(2048k). Using the size in the binary image header.
I (622) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (673) HFP_EXAMPLE: [ 1 ] init Bluetooth
I (673) BTDM_INIT: BT controller compile version [ba56601]
I (673) system_api: Base MAC address is not set
I (683) system_api: read default base MAC address from EFUSE
I (683) phy_init: phy_version 4660,0162888,Dec 23 2020
I (1413) HFP_EXAMPLE: [ 2 ] Start codec chip
I (1423) gpio: GPIO[19]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:3
I (1443) gpio: GPIO[21]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (1443) ES8388_DRIVER: init,out:02, in:00
I (1453) AUDIO_HAL: Codec mode is 3, Ctrl:1
I (1453) HFP_EXAMPLE: [ 3 ] Create audio pipeline for playback
I (1453) HFP_EXAMPLE: [3.1] Create i2s stream to write data to codec chip and read data from codec chip
I (1463) I2S: DMA Malloc info, datalen=blocksize=1200, dma_buf_count=3
I (1473) I2S: DMA Malloc info, datalen=blocksize=1200, dma_buf_count=3
I (1503) I2S: APLL: Req RATE: 44100, real rate: 44099.988, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 11289597.000, SCLK: 1411199.625000, diva: 1, divb: 0
I (1503) LYRAT_V4_3: I2S0, MCLK output by GPIO0
W (1513) I2S: I2S driver already installed
I (1513) LYRAT_V4_3: I2S0, MCLK output by GPIO0
I (1523) HFP_EXAMPLE: [3.2] Get hfp stream
I (1523) HFP_STREAM: outgoing stream init
I (1533) HFP_STREAM: incoming stream init
I (1533) HFP_EXAMPLE: [3.2] Register all elements to audio pipeline
I (1543) HFP_EXAMPLE: [3.3] Link it together [Bluetooth]-->hfp_in_stream-->i2s_stream_writer-->[codec_chip]
I (1553) AUDIO_PIPELINE: link el->rb, el:0x3ffd8944, tag:incoming, rb:0x3ffd8d00
I (1563) AUDIO_PIPELINE: link el->rb, el:0x3ffd7f78, tag:i2s_reader, rb:0x3ffdae3c
I (1563) HFP_EXAMPLE: [ 4 ] Initialize peripherals
E (1573) gpio: gpio_install_isr_service(438): GPIO isr service already installed
I (1583) HFP_EXAMPLE: [ 5 ] Set up event listener
I (1583) HFP_EXAMPLE: [5.1] Listening event from all elements of pipeline
I (1593) HFP_EXAMPLE: [5.2] Listening event from peripherals
I (1603) HFP_EXAMPLE: [ 6 ] Start audio_pipeline
I (1603) AUDIO_ELEMENT: [incoming-0x3ffd8944] Element task created
I (1613) AUDIO_ELEMENT: [i2s_writer-0x3ffd8304] Element task created
I (1623) AUDIO_PIPELINE: Func:audio_pipeline_run, Line:359, MEM Total:133920 Bytes
I (1633) AUDIO_ELEMENT: [i2s_writer] AEL_MSG_CMD_RESUME,state:1
I (1633) I2S_STREAM: AUDIO_STREAM_WRITER
I (1643) AUDIO_PIPELINE: Pipeline started
I (1643) HFP_EXAMPLE: [ 7 ] Listen for all pipeline events
W (36303) BT_APPL: new conn_srvc id:27, app_id:1
I (36313) HFP_STREAM: APP HFP event: CONNECTION_STATE_EVT
I (36313) HFP_STREAM: --Connection state connected, peer feats 0x0, chld_feats 0x0
I (36443) HFP_STREAM: APP HFP event: NETWORK_STATE_EVT
I (36443) HFP_STREAM: --NETWORK state available
I (36443) HFP_STREAM: APP HFP event: CALL_IND_EVT
I (36453) HFP_STREAM: --Call indicator NO call in progress
I (36453) HFP_STREAM: APP HFP event: CALL_SETUP_IND_EVT
I (36463) HFP_STREAM: --Call setup indicator NONE
I (36463) HFP_STREAM: APP HFP event: BATTERY_LEVEL_IND_EVT
I (36473) HFP_STREAM: --Battery level 5
I (36483) HFP_STREAM: APP HFP event: SIGNAL_STRENGTH_IND_EVT
I (36483) HFP_STREAM: --Signal strength: 5
I (36483) HFP_STREAM: APP HFP event: ROAMING_STATUS_IND_EVT
I (36493) HFP_STREAM: --ROAMING: inactive
I (36503) HFP_STREAM: APP HFP event: CALL_HELD_IND_EVT
I (36503) HFP_STREAM: --Call held indicator NONE held
I (36513) HFP_STREAM: APP HFP event: CONNECTION_STATE_EVT
I (36513) HFP_STREAM: --Connection state slc_connected, peer feats 0x3ef, chld_feats 0x3f
I (36523) HFP_STREAM: APP HFP event: INBAND_RING_TONE_EVT
I (36533) HFP_STREAM: --Inband ring state Provided
I (94813) HFP_STREAM: APP HFP event: BATTERY_LEVEL_IND_EVT
I (94813) HFP_STREAM: --Battery level 2
I (94833) HFP_STREAM: APP HFP event: VOLUME_CONTROL_EVT
I (94843) HFP_STREAM: --Volume_target: SPEAKER, volume 7
E (94873) BT_BTM: btm_sco_connected, handle 180
I (94873) HFP_STREAM: APP HFP event: AUDIO_STATE_EVT
I (94873) HFP_STREAM: --Audio state connected_msbc
I (94873) HFP_EXAMPLE: bt_app_hf_client_audio_open type = 1
I (94903) I2S: APLL: Req RATE: 16000, real rate: 15999.986, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 4095996.500, SCLK: 511999.562500, diva: 1, divb: 0
I (95093) AUDIO_ELEMENT: [i2s_writer] AEL_MSG_CMD_PAUSE
I (95123) I2S: APLL: Req RATE: 16000, real rate: 15999.986, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 4095996.500, SCLK: 511999.562500, diva: 1, divb: 0
I (95133) AUDIO_ELEMENT: [i2s_writer] AEL_MSG_CMD_RESUME,state:4
I (95143) I2S_STREAM: AUDIO_STREAM_WRITER
I (95143) AUDIO_ELEMENT: [i2s_reader-0x3ffd7f78] Element task created
I (95153) AUDIO_ELEMENT: [outgoing-0x3ffd8624] Element task created
I (95153) AUDIO_PIPELINE: Func:audio_pipeline_run, Line:359, MEM Total:124940 Bytes
I (95163) AUDIO_ELEMENT: [i2s_reader] AEL_MSG_CMD_RESUME,state:1
I (95173) I2S_STREAM: AUDIO_STREAM_READER,Rate:16000,ch:1
I (95183) AUDIO_PIPELINE: Pipeline started
I (95233) I2S: APLL: Req RATE: 16000, real rate: 15999.986, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 4095996.500, SCLK: 511999.562500, diva: 1, divb: 0
I (95233) AUDIO_ELEMENT: [i2s_reader] AEL_MSG_CMD_RESUME,state:3
I (95803) HFP_STREAM: APP HFP event: ROAMING_STATUS_IND_EVT
I (95803) HFP_STREAM: --ROAMING: active
I (108073) gpio: GPIO[21]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
W (108073) HEADPHONE: Headphone jack inserted
I (123143) HFP_STREAM: APP HFP event: BATTERY_LEVEL_IND_EVT
I (123153) HFP_STREAM: --Battery level 3
I (123273) HFP_STREAM: APP HFP event: CALL_SETUP_IND_EVT
I (123273) HFP_STREAM: --Call setup indicator INCOMING
I (123273) HFP_STREAM: APP HFP event: BATTERY_LEVEL_IND_EVT
I (123273) HFP_STREAM: --Battery level 0
I (207163) HFP_STREAM: APP HFP event: AUDIO_STATE_EVT
I (207163) HFP_STREAM: --Audio state disconnected
I (207163) HFP_EXAMPLE: bt_app_hf_client_audio_close
I (207173) AUDIO_ELEMENT: [i2s_reader] AEL_MSG_CMD_PAUSE
I (207173) HFP_STREAM: APP HFP event: CALL_SETUP_IND_EVT
I (207183) HFP_STREAM: --Call setup indicator NONE
#FEAT# ATTE2 status:0- At this stage, the default audio codec supported by the ESP32 HFP device is CVSD. CVSD data is streamed to the HFP device and then decoded into PCM data for output. ESP32 supports other codec configurations for HFP, but requires additional modifications to the protocol stack settings.
- Due to usage limitations, the ESP32 HFP device can only support a maximum of one connection to a remote device.
Please use the following feedback channels:
- For technical queries, go to the esp32.com forum
- For a feature request or bug report, create a GitHub issue
We will get back to you as soon as possible.