Studio Bluetooth Forum Discussions

I have faced MIC(Message Integrity Check) error for LE connection. I can see same issue on following link, could you help how to resolve?

For more information, please refer to the following.
https://community.infineon.com/t5/Studio-Bluetooth/Bug-report-Connection-Terminated-Due-to-MIC-Failure-0x3d-WICED-6/td-p/245462
https://community.infineon.com/t5/Studio-Bluetooth/Bug-report-BLE-cant-reconnect-to-a-bonded-device/m-p/35458#M163

1. Test environment
    1) H/W
         - Local H/W : CYW920706WCDEVAL
         - Peer device :
            > LG Stylus2
               >> Android version 7.0
               >> BR/EDR public BD address : DO:13:FD:50:F8:C8
            > HUAWEL P9 lite. (Model number : HUAWEL VNS-L22)
              >> Android version 7.0

   2) S/W
      - SDK : ModusToolBox 2.3 and LE_Hello_sensor application
      - SDK LIB : Wiced_btsdk baselib release v3.0.0
      - Peer Apps : LightBlue, local developed BLE application.

2. Test procedure
   - Step 1. Hello_sensor build & download
   - Step 2. Pairing with android phone.
   - Step 3. Connection success.
   - Step 4. Remote disconnect after pairing success.
   - Step 5. Start connection from andoid phone.
   - Step 6. Link connection fail due to MIC error. (error code 0x3d)

3. Test Results
- I tested other BLE peripheral with two android phones and it works well. (No MIC error)
- CYW920706WCDEVAL works fine with iphone, and other many android phone.

 - HCI fail : HCI_Encryption_Change event status code 0x3d. (mic error)

5. attached log file.

 - mic_error_app_log.txt : application log with MIC error.

 - mic_error_btspy.txt : MIC error with CYW920706WCDEVAL and LG android phone.

 - no_mic_with_iphone.txt :  No MIC error with CYW920706WCDEVAL and iphone.

Thanks.

Hello,  i have found the sent HID data is repeated side on peer device when the HID connection is established. 

SW Information

- Chipset & EVK : CYW20706 & F1DC2076 EVB (made in F1media)

- WICED SDK version : WCIED 6.2.1

- Test application : HID Device

Test Process

- Connect from Windows PC to F1DC2706(CYW20706)

- Send the HID data as below.

#1) "123456789012"

{ 0x01, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x00 } // 1

{ 0x01, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00 } // 2

{ 0x01, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00 } // 3

...

...

{ 0x01, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x00 } // 1

{ 0x01, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00 } // 2

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

#2) "1" "2" "3" "4" "5" "6" "7" "8" "9" "0" "1" "2"

{ 0x01, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x00 } // 1

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

{ 0x01, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00 } // 2

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

{ 0x01, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00 } // 3

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

...

...

{ 0x01, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x00 } // 1

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

{ 0x01, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00 } // 2

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

{ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // Release

Case of Windows PCs are as below.

• Notebook (SAMSUNG - NT500R5W-XD5S) > occured
  • Manufacturer : Qualcomm Atheros Communications
  • F/W version : HCI 8.0 / LMP 8.602
  • Driver provider : Qualcomm Atheros Communications
  • Driver date : 2019-01-24
  • Driver version : 10.0.0.825
• Notebook (SAMSUNG - NT900X5Y-A59WA) > occured
  • Manufacturer : Intel Corporation
  • F/W version : HCI 8.256 / LMP 8.256
  • Driver provider : Intel Corporation
  • Driver date : 2020-06-29
  • Driver version : 21.110.0.3
• Notebook (SAMSUNG - NT910S5P-KD5S) > don`t occured
  • Manufacturer : Intel Corporation
  • F/W version : HCI 7.0 / LMP 7.602
  • Driver provider : Intel Corporation
  • Driver date : 2018-06-27
  • Driver version : 10.0.0.714
• PC (BT dongle) > don`t occured
  • Manufacturer : Cambridge Silicon Radio Ltd.
  • F/W version: HCI 6.8891 / LMP 6.8891
  • Driver provider : Microsoft
  • Driver date : 2006-06-21
  • Driver version : 10.0.19041.1202
• Notebook (LG - 15U560) > don`t occured
  • Manufacturer : Intel Corporation
  • F/W version : HCI 8.4096 / LMP 8.4096
  • Driver provider : Intel Corporation
  • Driver date : 2017-04-07
  • Driver version : 19.60.0.3

and snoop log is as below.

- case of normal as "123456789012"

1700     2021-12-17 06:57:36.212273         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 1

1701     2021-12-17 06:57:36.212357         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 2

1702     2021-12-17 06:57:36.212377         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 3

1703     2021-12-17 06:57:36.212422         host     controller          HCI_CMD          8         Sent Write Link Policy Settings

1704     2021-12-17 06:57:36.214685         controller          host     HCI_EVT 9         Rcvd Command Complete (Write Link Policy Settings)

1705     2021-12-17 06:57:36.225738         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 4

1706     2021-12-17 06:57:36.250707         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 5

1707     2021-12-17 06:57:36.275727         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 6

1708     2021-12-17 06:57:36.300886         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 7

1709     2021-12-17 06:57:36.327073         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 8

1710     2021-12-17 06:57:36.350916         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 9

1711     2021-12-17 06:57:36.375785         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 0

1712     2021-12-17 06:57:36.400766         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 1

1713     2021-12-17 06:57:36.425917         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 2

1714     2021-12-17 06:57:36.450808         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - <action key up>

1715     2021-12-17 06:57:36.475917         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - <action key up>

1716     2021-12-17 06:57:36.500728         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - ENTER

1717     2021-12-17 06:57:36.501870         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - <action key up>

- case of occurred repeating like "1234555555555555556789012"

1724     2021-12-17 06:58:01.752072         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 1

1725     2021-12-17 06:58:01.752140         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 2

1726     2021-12-17 06:58:01.752166         host     controller          HCI_CMD          8         Sent Write Link Policy Settings

1727     2021-12-17 06:58:01.752182         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 3

1728     2021-12-17 06:58:01.752220         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 4

1729     2021-12-17 06:58:01.752295         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 5

1730     2021-12-17 06:58:01.753650         controller          host     HCI_EVT 9         Rcvd Command Complete (Write Link Policy Settings)

1731     2021-12-17 06:58:01.753691         host     controller          HCI_CMD          6         Sent Exit Sniff Mode

1732     2021-12-17 06:58:01.755650         controller          host     HCI_EVT 7         Rcvd Command Status (Exit Sniff Mode)

1733     2021-12-17 06:58:02.257789         host     controller          HCI_CMD          8         Sent Write Link Policy Settings

1734     2021-12-17 06:58:02.259647         controller          host     HCI_EVT 9         Rcvd Command Complete (Write Link Policy Settings)

1735     2021-12-17 06:58:02.693200         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 6

1736     2021-12-17 06:58:02.693639         controller          host     HCI_EVT 9         Rcvd Mode Change

1737     2021-12-17 06:58:02.698302         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 7

1738     2021-12-17 06:58:02.698332         host     controller          HCI_CMD          8         Sent Write Link Policy Settings

1739     2021-12-17 06:58:02.699650         controller          host     HCI_EVT 9         Rcvd Command Complete (Write Link Policy Settings)

1740     2021-12-17 06:58:02.700816         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 8

1741     2021-12-17 06:58:02.702054         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 9

1742     2021-12-17 06:58:02.703308         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 0

1743     2021-12-17 06:58:02.704559         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 1

1744     2021-12-17 06:58:02.705807         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - 2

1745     2021-12-17 06:58:02.707053         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - <action key up>

1746     2021-12-17 06:58:02.708302         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - <action key up>

1747     2021-12-17 06:58:02.709557         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - ENTER

1748     2021-12-17 06:58:02.710803         F1Media_74:f7:0d (PM5 SN2122910387)      localhost ()        HID      19           Rcvd DATA - Input - Keyboard - <action key up>

Is the repeated HID data related to sniff mode?

Why repeating HID data different for each PC?

Could you help me anybody, please?

Hi ALL: 

I'm trying to compiling the '20706-A2_Bluetooth' exampel project for CYBT-343026-EVAL following the guide document（AN223400）using with WICED-Studio-6.2. 

But there occurs some errors: 

Symbol 'errno' could not be resolved;

Symbol 'optarg' could not be resolved;

Symbol 'optind'could not be resolved;

How to resolve them? 

I'm appreciate if someone can help me figure out these. Tks！

Hi,

I am running the A2DP sink example on CYBT-343026-EVAL board. I play a 48kHz (sample rate) test audio file from a Pixel 4A android device.

The oscilloscope show the I2S word select signal to always be at 44.1kHz. I enabled android developer options, and sure enough this is the only sample rate that is selectable (i.e. not grayed out).

It seems that the 48kHz cannot be negotiated.

Any suggestion on how to make the 48kHz available? I would expect this to work after reading KBA228409 and this page https://community.cypress.com/t5/Resource-Library/A2DP-Sink-Example-on-CYW20706/ta-p/246388.

Thanks, Davide