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  • Case ID: 334479
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Issue with Stereo Sound from External Codec on nRF5340 DK (SDK v2.6.2)

Abdulmohaimen

Hello Team,

I am experiencing an issue with the sound output from an external codec connected to the nRF5340 DK. Currently, the sound is in mono, but my goal is to achieve stereo sound for both the left and right channels.

I read in an article that the configuration may need to be edited to enable stereo output from the external codec. I am using SDK v2.6.2 and would appreciate any guidance or suggestions on how to adjust the configuration to resolve this issue.

Thank you for your support!

Regards,

Abdulmohaimen Algamoudi

Parents
  • 0

    Hi,

    Could you please provide more information about your setup?

    Which external codec do you use?

    Best regards,
    Dejan

  • 0 in reply to dejans

    Hi, 

    Thank you for your swift reply.

    I am using the DA7212 evaluation board, and I can hear sound from the jacks on the DA7212 board. I followed the instructions from Nordic to enable the external codec.

    However, I am still working on achieving stereo sound, as the current output is mono. Any further guidance would be greatly appreciated.

    Best regards,

    Abdulmohaimen Algamoudi

  • 0 in reply to Abdulmohaimen

    Hi Abdulmohaimen,

    You could try to debug your application using tools mentioned in debugging lesson in the nRF Connect SDK Intermediate course.

    Best regards,
    Dejan

  • 0 in reply to dejans

    Hey Dejans, 

    Thank you for your support, and I apologize for the delay. I have been working hard to resolve the issue.

    I have tried the provided code, but unfortunately, it does not work.

    I also tested the  code mentioned in this tickt, and I was able to achieve stereo sound with CIS. However, there are some limitations, such as only one data channel (left) being transmitted

     

    the log outputs of the gateway:

    *** Booting Zephyr OS build v3.3.99-ncs1-2 ***
GW [00:00:00.258,178] <inf> fw_info: 
         nRF5340 Audio nRF5340 Audio DK cpuapp                      
         NCS base version: 2.4.2                            
         Cmake run : Sun Nov 24 16:33:29 2024
GW [00:00:00.258,209] <inf> fw_info: ------- DEBUG BUILD -------
GW [00:00:00.258,209] <inf> fw_info: Compiled for GATEWAY device
GW [00:00:00.268,829] <inf> board_version: Compatible board/HW version found: 1.0.0
GW [00:00:00.306,579] <wrn> bt_hci_core: Controller to host flow control not supported
GW [00:00:00.309,722] <inf> bt_hci_core: No ID address. App must call settings_load()
GW [00:00:00.309,783] <inf> ble: MAC: 00:00:00:00:00:00 (public)
GW [00:00:00.310,363] <inf> ble: Controller version: 3349
GW [00:00:00.312,103] <inf> bt_hci_core: Identity: FF:0B:F2:D9:88:E8 (random)
GW [00:00:00.312,133] <inf> bt_hci_core: HCI: version 5.2 (0x0b) revision 0x0d15, manufacturer 0x07e8
GW [00:00:00.312,133] <inf> bt_hci_core: LMP: version 5.2 (0x0b) subver 0x0d15
GW [00:00:00.402,526] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:00.404,632] <inf> cis_gateway: Scanning successfully started
GW [00:00:00.725,189] <inf> cis_gateway: Connected: D7:4A:8E:D1:8F:D7 (random)
GW [00:00:01.416,992] <inf> cis_gateway: All headsets connected
GW [00:00:02.537,963] <inf> cis_gateway: LEFT sink stream configured
GW [00:00:02.937,042] <inf> ble_audio_services: VCS discover finished
GW [00:00:04.217,895] <inf> cis_gateway: LEFT source stream configured
GW [00:00:04.297,241] <inf> cis_gateway: Enable stream 0x20002b9c
GW [00:00:04.297,912] <inf> cis_gateway: Enable stream 0x2000297c
GW [00:00:04.657,867] <inf> cis_gateway: Stream 0x2000297c started
GW [00:00:04.681,427] <wrn> bt_hci_core: opcode 0x2061 status 0x0c
GW [00:00:04.690,856] <wrn> bt_hci_core: opcode 0x2061 status 0x0c
GW [00:00:04.897,399] <inf> cis_gateway: Stream 0x20002b9c started

    The log outputs of the Headset:

    *** Booting Zephyr OS build v3.3.99-ncs1-2 ***
HL [00:00:00.259,368] <inf> fw_info: 
         nRF5340 Audio nRF5340 Audio DK cpuapp                      
         NCS base version: 2.4.2                            
         Cmake run : Sun Nov 24 16:31:16 2024
HL [00:00:00.259,368] <inf> fw_info: ------- DEBUG BUILD -------
HL [00:00:00.259,368] <inf> fw_info: HEADSET left device
HL [00:00:00.270,019] <inf> board_version: Compatible board/HW version found: 1.0.0
HL [00:00:00.307,800] <wrn> bt_hci_core: Controller to host flow control not supported
HL [00:00:00.310,882] <inf> bt_hci_core: No ID address. App must call settings_load()
HL [00:00:00.310,974] <inf> ble: MAC: 00:00:00:00:00:00 (public)
HL [00:00:00.311,523] <inf> ble: Controller version: 3349
HL [00:00:00.313,079] <inf> bt_hci_core: Identity: D7:4A:8E:D1:8F:D7 (random)
HL [00:00:00.313,110] <inf> bt_hci_core: HCI: version 5.2 (0x0b) revision 0x0d15, manufacturer 0x07e8
HL [00:00:00.313,110] <inf> bt_hci_core: LMP: version 5.2 (0x0b) subver 0x0d15
HL [00:00:00.406,707] <inf> cis_headset: Set direct advertising to FF:0B:F2:D9:88:E8 (random)
HL [00:00:00.407,409] <inf> cis_headset: Advertising successfully started
HL [00:00:03.134,887] <inf> cis_headset: Connected: FF:0B:F2:D9:88:E8 (random)
HL [00:00:04.907,409] <inf> cis_headset: LC3 codec config for sink:
HL [00:00:04.907,440] <inf> cis_headset:        Frequency: 48000 Hz
HL [00:00:04.907,440] <inf> cis_headset:        Frame Duration: 10000 us
HL [00:00:04.907,470] <inf> cis_headset:        Channel allocation: 0x1
HL [00:00:04.907,470] <inf> cis_headset:        Octets per frame: 80 (64000 bps)
HL [00:00:04.907,470] <inf> cis_headset:        Frames per SDU: 1
HL [00:00:06.586,669] <inf> cis_headset: LC3 codec config for source:
HL [00:00:06.586,700] <inf> cis_headset:        Frequency: 48000 Hz
HL [00:00:06.586,700] <inf> cis_headset:        Frame Duration: 10000 us
HL [00:00:06.586,700] <inf> cis_headset:        Channel allocation: 0x1
HL [00:00:06.586,700] <inf> cis_headset:        Octets per frame: 80 (64000 bps)
HL [00:00:06.586,730] <inf> cis_headset:        Frames per SDU: 1
HL [00:00:06.667,053] <inf> streamctrl: Presentation delay 10000 us is set by initiator
HL [00:00:06.667,083] <inf> streamctrl: Presentation delay 10000 us is set by initiator
HL [00:00:07.032,989] <inf> cis_headset: Stream 0x2000ce40 started
DAC L gain 112   
DAC R gain 112   
HL [00:00:07.102,600] <inf> audio_datapath: Drft comp state: CALIB
HL [00:00:07.105,560] <wrn> audio_datapath: Data received, total underruns: 54
HL [00:00:07.146,575] <wrn> audio_datapath: Data received, total underruns: 55
HL [00:00:07.187,561] <wrn> audio_datapath: Data received, total underruns: 56
HL [00:00:07.202,575] <inf> audio_datapath: Drft comp state: INIT
HL [00:00:07.203,582] <inf> audio_datapath: Drft comp state: CALIB
HL [00:00:07.266,540] <inf> cis_headset: Stream 0x2000ce64 started
HL [00:00:07.303,588] <inf> audio_datapath: Drft comp state: OFFSET
HL [00:00:07.685,821] <inf> audio_datapath: Drft comp state: LOCKED
HL [00:00:07.692,657] <inf> audio_datapath: Pres comp state: MEAS
HL [00:00:07.802,917] <inf> audio_datapath: Pres comp state: WAIT
HL [00:00:07.942,718] <inf> audio_datapath: Pres comp state: INIT
HL [00:00:07.952,697] <inf> audio_datapath: Pres comp state: MEAS
HL [00:00:08.062,927] <inf> audio_datapath: Pres comp state: LOCKED
HL [00:00:08.666,046] <inf> ble_audio_services: Discovery of MCS finished

    One of the problems I am currently facing is that the gateway cannot reconnect to the headset after it has been turned off. To re-establish the connection, I have to press the reset button.

    *** Booting Zephyr OS build v3.3.99-ncs1-2 ***
GW [00:00:00.256,622] <inf> fw_info: 
         nRF5340 Audio nRF5340 Audio DK cpuapp                      
         NCS base version: 2.4.2                            
         Cmake run : Sun Nov 24 16:33:29 2024
GW [00:00:00.256,652] <inf> fw_info: ------- DEBUG BUILD -------
GW [00:00:00.256,652] <inf> fw_info: Compiled for GATEWAY device
GW [00:00:00.267,272] <inf> board_version: Compatible board/HW version found: 1.0.0
GW [00:00:00.305,145] <wrn> bt_hci_core: Controller to host flow control not supported
GW [00:00:00.308,258] <inf> bt_hci_core: No ID address. App must call settings_load()
GW [00:00:00.308,319] <inf> ble: MAC: 00:00:00:00:00:00 (public)
GW [00:00:00.308,898] <inf> ble: Controller version: 3349
GW [00:00:00.310,424] <inf> bt_hci_core: Identity: FF:0B:F2:D9:88:E8 (random)
GW [00:00:00.310,455] <inf> bt_hci_core: HCI: version 5.2 (0x0b) revision 0x0d15, manufacturer 0x07e8
GW [00:00:00.310,485] <inf> bt_hci_core: LMP: version 5.2 (0x0b) subver 0x0d15
GW [00:00:00.403,228] <inf> cis_gateway: Scanning successfully started
GW [00:00:00.604,553] <inf> cis_gateway: Connected: 49:EF:87:0B:C2:BA (random)
GW [00:00:01.575,439] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:01.576,202] <inf> cis_gateway: Scanning successfully started
GW [00:00:02.135,437] <wrn> cis_gateway: Connection not found
GW [00:00:02.135,437] <err> cis_gateway: Unknown connection, should not reach here
GW [00:00:02.149,871] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:02.150,024] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:02.150,604] <inf> cis_gateway: Scanning successfully started
GW [00:00:02.372,070] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:02.372,192] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:02.372,863] <inf> cis_gateway: Scanning successfully started
GW [00:00:02.474,884] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:02.475,036] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:02.475,616] <inf> cis_gateway: Scanning successfully started
GW [00:00:02.572,875] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:02.573,028] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:02.573,577] <inf> cis_gateway: Scanning successfully started
GW [00:00:02.615,356] <wrn> cis_gateway: Connection not found
GW [00:00:02.615,386] <err> cis_gateway: Unknown connection, should not reach here
GW [00:00:02.673,645] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:02.673,797] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:02.674,560] <inf> cis_gateway: Scanning successfully started
GW [00:00:02.793,609] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:02.793,792] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:02.794,555] <inf> cis_gateway: Scanning successfully started
GW [00:00:02.891,998] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:02.892,150] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:02.892,883] <inf> cis_gateway: Scanning successfully started
GW [00:00:03.007,904] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:03.008,056] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:03.008,636] <inf> cis_gateway: Scanning successfully started
GW [00:00:03.109,130] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:03.109,283] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:03.109,893] <inf> cis_gateway: Scanning successfully started
GW [00:00:03.209,899] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:03.210,052] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:03.210,632] <inf> cis_gateway: Scanning successfully started
GW [00:00:03.419,921] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:03.420,074] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:03.420,623] <inf> cis_gateway: Scanning successfully started
GW [00:00:03.629,272] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:03.629,425] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:03.630,187] <inf> cis_gateway: Scanning successfully started
GW [00:00:03.732,025] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:03.732,177] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:03.732,910] <inf> cis_gateway: Scanning successfully started
GW [00:00:03.837,585] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:03.837,738] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:03.838,500] <inf> cis_gateway: Scanning successfully started
GW [00:00:03.946,136] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:03.946,258] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:03.946,929] <inf> cis_gateway: Scanning successfully started
GW [00:00:04.052,032] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:04.052,185] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:04.052,917] <inf> cis_gateway: Scanning successfully started
GW [00:00:04.161,071] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:04.161,224] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:04.161,926] <inf> cis_gateway: Scanning successfully started
GW [00:00:04.372,070] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:04.372,192] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:04.372,955] <inf> cis_gateway: Scanning successfully started
GW [00:00:04.487,640] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:04.487,792] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:04.488,555] <inf> cis_gateway: Scanning successfully started
GW [00:00:04.588,012] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:04.588,165] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:04.588,928] <inf> cis_gateway: Scanning successfully started
GW [00:00:04.692,962] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:04.693,084] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:04.693,664] <inf> cis_gateway: Scanning successfully started
GW [00:00:04.804,138] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:04.804,290] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:04.804,962] <inf> cis_gateway: Scanning successfully started
GW [00:00:04.913,696] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:04.913,879] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:04.914,611] <inf> cis_gateway: Scanning successfully started
GW [00:00:05.131,286] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:05.131,439] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:05.132,049] <inf> cis_gateway: Scanning successfully started
GW [00:00:05.233,703] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:05.233,886] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:05.234,619] <inf> cis_gateway: Scanning successfully started
GW [00:00:05.346,527] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:05.346,679] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:05.347,351] <inf> cis_gateway: Scanning successfully started
GW [00:00:05.550,994] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:05.551,116] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:05.551,727] <inf> cis_gateway: Scanning successfully started
GW [00:00:05.652,008] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:05.652,130] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:05.652,709] <inf> cis_gateway: Scanning successfully started
GW [00:00:05.772,125] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:05.772,247] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:05.772,979] <inf> cis_gateway: Scanning successfully started
GW [00:00:05.873,413] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:05.873,565] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:05.874,298] <inf> cis_gateway: Scanning successfully started
GW [00:00:05.972,106] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:05.972,259] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:05.972,991] <inf> cis_gateway: Scanning successfully started
GW [00:00:06.080,535] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:06.080,657] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:06.081,329] <inf> cis_gateway: Scanning successfully started
GW [00:00:06.178,802] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:06.178,924] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:06.179,687] <inf> cis_gateway: Scanning successfully started
GW [00:00:06.281,127] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:06.281,280] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:06.282,012] <inf> cis_gateway: Scanning successfully started
GW [00:00:06.394,012] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:06.394,165] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:06.394,744] <inf> cis_gateway: Scanning successfully started
GW [00:00:06.603,546] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:06.603,698] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:06.604,370] <inf> cis_gateway: Scanning successfully started
GW [00:00:06.708,038] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:06.708,190] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:06.708,770] <inf> cis_gateway: Scanning successfully started
GW [00:00:06.811,676] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:06.811,859] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:06.812,591] <inf> cis_gateway: Scanning successfully started
GW [00:00:06.913,757] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:06.913,909] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:06.914,642] <inf> cis_gateway: Scanning successfully started
GW [00:00:07.033,142] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:07.033,264] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:07.034,027] <inf> cis_gateway: Scanning successfully started
GW [00:00:07.124,237] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:07.124,359] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:07.125,030] <inf> cis_gateway: Scanning successfully started
GW [00:00:07.233,795] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:07.233,947] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:07.234,680] <inf> cis_gateway: Scanning successfully started
GW [00:00:07.452,056] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:07.452,209] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:07.452,758] <inf> cis_gateway: Scanning successfully started
GW [00:00:07.548,614] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:07.548,736] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:07.549,407] <inf> cis_gateway: Scanning successfully started
GW [00:00:07.652,160] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:07.652,313] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:07.653,045] <inf> cis_gateway: Scanning successfully started
GW [00:00:07.753,814] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:07.753,967] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:07.754,699] <inf> cis_gateway: Scanning successfully started
GW [00:00:07.972,198] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:07.972,320] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:07.973,052] <inf> cis_gateway: Scanning successfully started
GW [00:00:08.073,822] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:08.073,974] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:08.074,707] <inf> cis_gateway: Scanning successfully started
GW [00:00:08.168,762] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:08.168,945] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:08.169,677] <inf> cis_gateway: Scanning successfully started
GW [00:00:08.273,803] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:08.273,986] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:08.274,719] <inf> cis_gateway: Scanning successfully started
GW [00:00:08.492,218] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:08.492,340] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:08.493,072] <inf> cis_gateway: Scanning successfully started
GW [00:00:08.593,841] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:08.593,994] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:08.594,726] <inf> cis_gateway: Scanning successfully started
GW [00:00:08.692,199] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:08.692,352] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:08.693,084] <inf> cis_gateway: Scanning successfully started
GW [00:00:08.800,903] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:08.801,025] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:08.801,757] <inf> cis_gateway: Scanning successfully started
GW [00:00:08.913,116] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:08.913,238] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:08.913,848] <inf> cis_gateway: Scanning successfully started
GW [00:00:09.445,343] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:09.445,465] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:09.446,105] <inf> cis_gateway: Scanning successfully started
GW [00:00:09.652,252] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:09.652,374] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:09.653,137] <inf> cis_gateway: Scanning successfully started
GW [00:00:09.751,220] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:09.751,373] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:09.752,105] <inf> cis_gateway: Scanning successfully started
GW [00:00:10.161,163] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:10.161,315] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:10.161,895] <inf> cis_gateway: Scanning successfully started
GW [00:00:10.271,789] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:10.271,942] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:10.272,705] <inf> cis_gateway: Scanning successfully started
GW [00:00:10.369,934] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:10.370,086] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:10.370,819] <inf> cis_gateway: Scanning successfully started
GW [00:00:10.472,229] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:10.472,381] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:10.473,144] <inf> cis_gateway: Scanning successfully started
GW [00:00:10.683,166] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:10.683,319] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:10.683,898] <inf> cis_gateway: Scanning successfully started
GW [00:00:10.792,846] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:10.792,999] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:10.793,731] <inf> cis_gateway: Scanning successfully started
GW [00:00:10.900,573] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:10.900,726] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:10.901,489] <inf> cis_gateway: Scanning successfully started
GW [00:00:11.000,579] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:11.000,732] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:11.001,464] <inf> cis_gateway: Scanning successfully started
GW [00:00:11.111,267] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:11.111,419] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:11.112,182] <inf> cis_gateway: Scanning successfully started
GW [00:00:11.203,430] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:11.203,552] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:11.204,162] <inf> cis_gateway: Scanning successfully started
GW [00:00:11.313,934] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:11.314,086] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:11.314,819] <inf> cis_gateway: Scanning successfully started
GW [00:00:11.528,259] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:11.528,411] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:11.529,174] <inf> cis_gateway: Scanning successfully started
GW [00:00:11.633,911] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:11.634,094] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:11.634,796] <inf> cis_gateway: Scanning successfully started
GW [00:00:11.733,215] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:11.733,337] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:11.733,947] <inf> cis_gateway: Scanning successfully started
GW [00:00:11.849,884] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:11.850,036] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:11.850,769] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.046,508] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.046,661] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.047,241] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.153,961] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.154,113] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.154,846] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.371,215] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.371,368] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.371,948] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.473,968] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.474,121] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.474,884] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.572,326] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.572,479] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.573,242] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.673,980] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.674,133] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.674,865] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.773,223] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.773,376] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.773,956] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.879,486] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.879,608] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.880,218] <inf> cis_gateway: Scanning successfully started
GW [00:00:12.985,260] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:12.985,382] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:12.985,992] <inf> cis_gateway: Scanning successfully started
GW [00:00:13.092,346] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:13.092,498] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:13.093,231] <inf> cis_gateway: Scanning successfully started
GW [00:00:13.190,551] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:13.190,673] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:13.191,253] <inf> cis_gateway: Scanning successfully started
GW [00:00:13.401,947] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:13.402,130] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:13.402,862] <inf> cis_gateway: Scanning successfully started
GW [00:00:13.510,955] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:13.511,108] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:13.511,871] <inf> cis_gateway: Scanning successfully started
GW [00:00:13.611,938] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:13.612,091] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:13.612,854] <inf> cis_gateway: Scanning successfully started
GW [00:00:13.713,989] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:13.714,172] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:13.714,935] <inf> cis_gateway: Scanning successfully started
GW [00:00:13.932,373] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:13.932,525] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:13.933,258] <inf> cis_gateway: Scanning successfully started
GW [00:00:14.026,306] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:14.026,428] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:14.027,038] <inf> cis_gateway: Scanning successfully started
GW [00:00:14.133,270] <wrn> cis_gateway: Create ACL connection failed: -12
GW [00:00:14.133,422] <inf> cis_gateway: All bonded slots filled, will not accept new devices
GW [00:00:14.134,002] <inf> cis_gateway: Scanning successfully started
GW [00:00:14.350,280] <wrn> cis_gateway: Create ACL connection failed: -12

    I would now like to achieve a stable CIS connection with both channels (left and right) being transmitted. After that, I aim to implement it using a newer SDK version (I am currently using v2.4.2).

    I have tried the approach mentioned in this tickt, but when I add CONFIG_BT_MAX_CONN=2_ to the prj.conf file, I encounter the following error from the gateway:

    *** Booting Zephyr OS build v3.3.99-ncs1-2 ***
GW [00:00:00.256,500] <inf> fw_info: 
         nRF5340 Audio nRF5340 Audio DK cpuapp                      
         NCS base version: 2.4.2                            
         Cmake run : Sun Nov 24 16:46:32 2024
GW [00:00:00.256,530] <inf> fw_info: ------- DEBUG BUILD -------
GW [00:00:00.256,530] <inf> fw_info: Compiled for GATEWAY device
GW [00:00:00.267,150] <inf> board_version: Compatible board/HW version found: 1.0.0
GW [00:00:00.305,236] <wrn> bt_hci_core: Controller to host flow control not supported
GW [00:00:00.308,349] <inf> bt_hci_core: No ID address. App must call settings_load()
GW [00:00:00.308,441] <inf> ble: MAC: 00:00:00:00:00:00 (public)
GW [00:00:00.308,990] <inf> ble: Controller version: 3349
GW [00:00:00.312,133] <inf> bt_hci_core: Identity: E4:C0:9C:97:EF:97 (random)
GW [00:00:00.312,133] <inf> bt_hci_core: HCI: version 5.GW [00:00:00.312,164] <inf> bt_hci_core: LMP: version 5.2 (0x0b) subver 0x0d15
GW [00:00:00.313,842] <inf> bt_settings: Saving ID
GW [00:00:00.400,390] <err> cis_gateway: Failed to create unicast group: -22
GW [00:00:00.400,390] <err> streamctrl: Failed to enable LE Audio
GW [00:00:00.400,421] <err> streamctrl: ERR_CHK Err_code: [-22] @ line: 467
GW [00:00:00.400,421] <err> os: r0/a1:  0x00000003  r1/a2:  0x00000005  r2/a3:  0x00000004
GW [00:00:00.400,421] <err> os: r3/a4:  0x0006a3ff r12/ip:  0x20019140 r14/lr:  0x0006a489
GW [00:00:00.400,451] <err> os:  xpsr:  0x49100000
GW [00:00:00.400,451] <err> os: s[ 0]:  0x00000000  s[ 1]:  0x00000000  s[ 2]:  0x00000000  s[ 3]:  0x00000000
GW [00:00:00.400,451] <err> os: s[ 4]:  0x00000000  s[ 5]:  0x00000000  s[ 6]:  0x00000000  s[ 7]:  0x00000000
GW [00:00:00.400,451] <err> os: s[ 8]:  0x00000000  s[ 9]:  0x00000000  s[10]:  0x00000000  s[11]:  0x00000000
GW [00:00:00.400,482] <err> os: s[12]:  0x00000000  s[13]:  0x00000000  s[14]:  0x00000000  s[15]:  0x00000000
GW [00:00:00.400,482] <err> os: fpscr:  0x00000000
GW [00:00:00.400,482] <err> os: Faulting instruction address (r15/pc): 0x00006736
GW [00:00:00.400,512] <err> os: >>> ZEPHYR FATAL ERROR 3: Kernel oops on CPU 0
GW [00:00:00.400,543] <err> os: Current thread: 0x200051b0 (main)
GW [00:00:00.400,543] <err> error_handler: Caught system error -- reason 3. Entering infinite loop

    Should you require further details, I am happy to assist.

    Many thanks in advance; I truly appreciate your assistance.

    Best regards,

    Abdulmohaimen Algamoudi

  • 0 in reply to Abdulmohaimen

    I forgot to mention that I am not using the configuration CONFIG_AUDIO_SOURCE_I2S=y, as my source is via USB. However, I am experiencing some issues with the microphone—when I use it, I only hear a noisy signal.

  • 0 in reply to Abdulmohaimen

    Hi Abdulmohaimen,

    Would it be possible that you switch to newer NCS version sooner rather than later? The controller that was used in audio application before NCS v2.6.0 is deprecated and it is highly recommended that you update your NCS version. The most recent NCS version in 2.8.0.

    Best regards,
    Dejan

  • 0 in reply to dejans

    Hey Dejans,

    I have been using the older SDK because it is the only version with which I have made progress so far. I currently have no issue with transitioning to a newer SDK. However, as I mentioned before, I was unable to make further progress with version 2.6.2.

    I would be grateful if you could provide me with any steps or guidance to move forward with the new SDK and address potential issues, such as pairing and data rate problems.

    Thanks in advance.

    best regards 

    Abdulmohaimen 

Reply
  • 0 in reply to dejans

    Hey Dejans,

    I have been using the older SDK because it is the only version with which I have made progress so far. I currently have no issue with transitioning to a newer SDK. However, as I mentioned before, I was unable to make further progress with version 2.6.2.

    I would be grateful if you could provide me with any steps or guidance to move forward with the new SDK and address potential issues, such as pairing and data rate problems.

    Thanks in advance.

    best regards 

    Abdulmohaimen 

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