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TPS65981: PD data not correct

domenyko
Genius 9655 points
Part Number: TPS65981

Dear all,

one of my AA is facing issues with the TPS65981ABIRTQR.

The device has been configured through the Configuration Tool, mode DFP_D  with +5V at PDO.

The CC pin seems working fine, but the data on the PD bus are not correct.

 

I've attached the project done with the configurator.

Can you please provide me with any hints ?

 

regards,

Domenico

project.zip

  • 0
    TI__Mastermind 36751 points
    Hi Domenyko,

    I see a 9V Source and Sink PDO set in the Source capabilities and Sink capabilities registers respectively. Is this intended?
    Additionally, can you check to see if the PD controller is in APP mode by reading the Mode register 0x3 after boot?
    Finally, a PD trace of the failure would help debug the issue.

    Thank you,
    Eric
  • 0 in reply to Eric Beljaars
    TI__Genius 9655 points

    Hi Eric,

    below the ansers to your questions:

    1.      Just 1x PDO source capabilities is enables at 5V , the other sink are disabled.

    2.      PD is in APP mode after boot.

    In the attachment the registers with the devide in debug mode.

    It seems that there aren't any  active contract PDO.

    regards,

    Domenico

    Device 1, port 0 Debug Registers.txt 
    Mode (0x3)
  Mode
    Mode   APP 

Version (0xf)
  Version
    Version   0x11208

Status (0x1a)
  Status
    Plug Present              Plug present, see Conn State (below) for details.
    Conn State                Connection present, Ra detected (Rd and Ra detected) or Rp detected with previous Ra detection (assumes PD Controller started as Source and later swapped to Sink).
    Plug Orientation          Upside-up orientation (plug CC on C_CC1) or orientation unknown or port is disabled/disconnected.
    Port Role                 PD Controller is Source (C_CCx pull-up active).
    Data Role                 PD Controller is DFP.
    VConn Enabled             VConn is supplied by this controller
    PP_5V Switch              Enabled Reverse current from VBUS to Power Path blocked (acting as output)
    PP_HV Switch              Disabled
    PP_HVE Switch             Disabled
    PP_Cable Switch           PP_CABLE enabled on C_CC2
    Overcurrent               False
    Power Source              VIN_3V3
    VBUS Status               VBUS is at vSafe0V (less than 0.8V)
    USB Host Present          No far-end device present providing VBUS or PD Controller power role is Source.
    Acting as Legacy          PD Controller is not in a legacy (non PD mode).
    Go To Min Active          No PD contract established or GotoMin restriction has been cleared by Source Capabilities message or disconnect/Hard Reset.
    BIST                      No BIST in progress
    High Voltage Warning      PD Controller operating as Sink or VBUS voltage is below limit specified by HighVoltageWarningLimit register or port is disconnected.
    Low Voltage Warning       PD Controller operating as Sink or VBUS voltage is above limit specified by LowVoltageWarningLimit register or port is disconnected.
    Alternative Mode Status   No Alternate Modes attempted.

Boot Flags (0x2d)
  Boot Flags
    Boot Successful                     True
    PP_EXT Switch Closed                False
    Dead Battery Flag                   False
    SPI Flash Present                   True
    Region 0                            True
    Region 1                            False
    Region 0 Invalid                    False
    Region 1 Invalid                    False
    Region 0 Flash Error                False
    Region 1 Flash Error                False
    Reed Solomon Error                  False
    UART CRC Fail                       False
    Region 0 CRC Fail                   False
    Region 1 CRC Fail                   False
    Customer OTP Invalid                False
    I2C OTP Bits                        0x1
    App Customization Version Error     False
    App Customization Length Error      False
    App Customization CRC Check Error   False
    DBG_CTL Bits                        0x0
    I2C_ADDR Bits                       0x7
    UART Boot                           False
    UART Overflow Error                 False
    PP_HV Switch Closed                 False
    UART Retry Error                    False
    UART Timeout Error                  False
    Customer OTP Valid                  Unknown (0x2)
    SWD Disabled                        True
    Vout3V3 Control                     Unknown (0x0)
    Wait for Vin3V3                     Unknown (0x1)
    OTP Customer TBT Present            False
    OTP Customer I2C Threshold          0x6
    Revision ID Metal                   0x1
    Revision ID Base                    0x1

Build Identifier (0x2e)
  Build Identifier
    Build Identifier   e5653a73c1b800c633a4194aef53123e463c449c_07162018

Device Info (0x2f)
  Device Info
    Device Info   TPS65982 HW0011 FW0001.12.08 ZTBT1(ACE1

Received Source Capabilities (0x30)
  Received Source Capabilities
    Number of Source PDOs   0

Received Sink Capabilities (0x31)
  Received Sink Capabilities
    Number of Sink PDOs   0

Active Contract PDO (0x34)
  Active Contract PDO
    Maximum Current   0 A
    Voltage           0 V
    Peak Current      100%
    reserved          reserved, set 0
    Supply Type       Fixed Source

Active Contract RDO (0x35)
  Active Contract RDO
    Max/Min Operating Current   0 A
    Operating Current           0 A
    No USB Suspend              False
    USB Communication Capable   False
    Capability Mismatch         False
    Giveback Flag               False
    Object Position             0

Sink Request RDO (0x36)
  Sink Request RDO
    Max/Min Operating Current   0 A
    Operating Current           0 A
    No USB Suspend              False
    USB Communication Capable   False
    Capability Mismatch         False
    Giveback Flag               False
    Object Position             0

Power Status (0x3f)
  Power Status
    Offer Priority     Connection Present
    Source or Sink     Source
    Type-C Current     3A Current
    BC 1.2 Detection   USB BC v1.2 connection not yet established
    BC 1.2 Status      SDP Detected

PD Status (0x40)
  PD Status
    Plug Details         USB Type-C full-featured plug
    CC Pull-up           Not in CC pull-down mode / no CC pull-up detected.
    Port Type            Source
    Present Role         Source
    Soft Reset Details   Reset value, no soft reset
    Hard Reset Details   Reset value, no hard reset.

Received SOP Identity Data Object (0x48)
  Received SOP Identity Data Object
    Record Counts
      Number of Received Identity Objects   0
    Received SOP Identity Response
      UFP IDO Header
        USB Vendor ID                0x0
        Modal Operation Supported    False
        Product Type                 Undefined
        Data Capable as USB Device   False
        Data Capable as USB Host     False
      Product Vendor Defined Object
        BCD Device       0x0
        USB Product ID   0x0
      Alternate Mode Adapter VDO
        USB SS Signalling       USB 2.0 Only
        VBus Required           False
        VConn Required          False
        VConn Power             1 W
        SSRx 2 Directionality   Fixed
        SSRx 1 Directionality   Fixed
        SSTx 2 Directionality   Fixed
        SSTx 1 Directionality   Fixed
        AMA Firmware Version    0x0
        AMA Hardware Version    0x0
      Certification Test ID   0x0
      UFP IDO VDO #5          0x0
      UFP IDO VDO #6          0x0

Received SOP Prime Identity Data Object (0x49)
  Received SOP Prime Identity Data Object
    Record Counts
      Number of Received Identity Objects   0
    Received SOP Prime Discover Identity Response
      SOP Prime IDO Header
        USB Vendor ID                0x0
        Modal Operation Supported    False
        Product Type                 Undefined
        Data Capable as USB Device   False
        Data Capable as USB Host     False
      Product Vendor Defined Object
        BCD Device       0x0
        USB Product ID   0x0
      Cable Vendor Defined Object
        USB SS Signalling         USB 2.0 Only
        SOP" Controller Present   False
        VBus Through Cable        False
        VBus Current Capability   1.5 A
        SSRx 2 Directionality     Fixed
        SSRx 1 Directionality     Fixed
        SSTx 2 Directionality     Fixed
        SSTx 1 Directionality     Fixed
        Cable Termination Type    Both Ends Passive, VConn Not Required
        Cable Latency             reserved (0000b)
        Type-C Plug/Receptacle    Plug
        Type-C to Type-A/B/C      Type-A
        Cable Firmware Version    0x0
        Cable Hardware Version    0x0
      Certification Test ID   0x0
      SOP Prime IDO VDO #5    0x0
      SOP Prime IDO VDO #6    0x0

RX Attention structured VDM (0x4e)
  RX Attention structured Register
    RX Attention Status
      Number of Valid VDOs         0
      Number of Register Updates   0
    Data Objects Received
      Data Object 1
        Payload   0x0
        Type      Unstructured
        SVID      0x0
      Data Object 2
        Data Object 2   0x0
      Data Object 3
        Data Object 3   0x0
      Data Object 4
        Data Object 4   0x0
      Data Object 5
        Data Object 5   0x0
      Data Object 6
        Data Object 6   0x0
      Data Object 7
        Data Object 7   0x0

RX VDM Register (0x4f)
  RX VDM Register
    RX VDM Status
      Number of Valid VDOs         0
      SOP Message Source           VDM came from SOP
      Number of Register Updates   0
    Data Objects Received
      Data Object 1
        Payload   0x0
        Type      Unstructured
        SVID      0x0
      Data Object 2
        Data Object 2   0x0
      Data Object 3
        Data Object 3   0x0
      Data Object 4
        Data Object 4   0x0
      Data Object 5
        Data Object 5   0x0
      Data Object 6
        Data Object 6   0x0
      Data Object 7
        Data Object 7   0x0

User VID Status Register (0x57)
  User VID Status
    User VID Status
      User VID Detected        False
      User VID Active          False
      User VID Error Code      0x0
      User VID Mode 1 Status   False
      User VID Mode 2 Status   False
      User VID Mode 3 Status   False
      User VID Mode 4 Status   False

DP SID Status (0x58)
  DP SID Status
    DP Status TX
      Connection Status               Neither DFP_D or UFP_D connected
      Power Low                       Adapter is functioning normally or disabled
      Enabled                         DP functionality is Disabled
      Multi-function Preferred        No Preference for Multi-function
      USB Configuration Request       Maintain current configuration
      Exit DisplayPort Mode Request   Maintain current mode
      HPD State                       HPD_Low
      IRQ HPD                         No IRQ_HPD since last status
      reserved                        reserved
    DP Status RX
      Connection Status               Neither DFP_D or UFP_D connected
      Power Low                       Adapter is functioning normally or disabled
      Enabled                         DP functionality is Disabled
      Multi-function Preferred        No Preference for Multi-function
      USB Configuration Request       Maintain current configuration
      Exit DisplayPort Mode Request   Maintain current mode
      HPD State                       HPD_Low
      IRQ HPD                         No IRQ_HPD since last status
      reserved                        reserved
    DP Configure
      Select Configuration                          Set configuration for USB
      Supports DP v1.3 signalling                   False
      Supports USB Gen 2 signalling                 False
      DFPD Receptacle or UFPD Plug Pin Assignment   (none)
      UFPD Receptacle or DFPD Plug Pin Assignment   (none)
      reserved                                      reserved
    DP Mode Data
      Port Capability                               Reserved
      Supports DP v1.3 signalling                   False
      Supports USB Gen 2 signalling                 False
      DFPD Receptacle or UFPD Plug Pin Assignment   (none)
      UFPD Receptacle or DFPD Plug Pin Assignment   (none)
      reserved                                      reserved
    DP SID Detected   DP SID not detected
    DP Mode Active    0x0
    Error Code        0x0

TI VID Status Register (0x5b)
  TI Mode Status
    Texas Instruments VID Status
      TI VID Status       False
      TI PDIO Status      False
      TI VID Error Code   0x0

Data Status (0x5f)
  Data Status
    Data Connection                   Data connection present (at least one other bit in this register is nonzero)
    Data Orientation                  Plug is oriented on CC1 (upside-up) or no data connection
    Cable Active Orientation          Cable is passive
    Over Current Or Temperature       No over-current or over-temperature condition
    USB2 Connection                   USB2 connection to USB_RP on Mission D+/D- pair
    USB3 Connection                   USB3 connection on SSTx1/Rx1 if upside-up, SSTx2/Rx2 if upside down.
    USB3 Speed                        USB3 limited to Gen 1 speed (5Gbps)
    USB Data Role                     DFP
    DisplayPort Connection            No DisplayPort connection.
    DisplayPort Source or Sink        DP Source (DFP_D) connection requested (if supported by configuration).
    DisplayPort Pin Assignment        Legacy DP, USB-C to DP cable (spec pin assignments E-F, if supported).
    IRQ Ack                           No IRQ
    HPD IRQ sticky                    No HPD IRQ
    HPD Level                         HPD Low
    TBT Connection                    No Thunderbolt connection. This value is also used if TBT Mode is active but an Attention SVDM has been sent/received enabling USB2 instead of TBT.
    TBT Type                          Type-C to Type-C Cable
    Cable Type                        Active Cable
    Cable Type                        Active Cable
    Active Link Training              Active with bi-directional LSRX communication (also used for passive cables)
    Force LSX                         Normal operation.
    S0 Power Negotiated               Active contract does not have a power mismatch or PD Controller is not a Sink
    Thunderbolt Cable Speed Support   Reserved
    Thunderbolt Cable Gen             3rd generation TBT (10.3125 and 20.625 Gb/s)

RX User VID Attention VDM Register (0x60)
  RX User VID Attention VDM Register
    RX Attention Status
      Number of Valid VDOs         0
      Number of Register Updates   0
    Data Objects Received
      Data Object 1
        Payload   0x0
        Type      Unstructured
        SVID      0x0
      Data Object 2
        Data Object 2   0x0
      Data Object 3
        Data Object 3   0x0
      Data Object 4
        Data Object 4   0x0
      Data Object 5
        Data Object 5   0x0
      Data Object 6
        Data Object 6   0x0
      Data Object 7
        Data Object 7   0x0

RX User VID Other VDM Register (0x61)
  RX User VID Other VDM Register
    RX VDM Status
      Number of Valid VDOs         0
      Number of Register Updates   0
    Data Objects Received
      Data Object 1
        Payload   0x0
        Type      Unstructured
        SVID      0x0
      Data Object 2
        Data Object 2   0x0
      Data Object 3
        Data Object 3   0x0
      Data Object 4
        Data Object 4   0x0
      Data Object 5
        Data Object 5   0x0
      Data Object 6
        Data Object 6   0x0
      Data Object 7
        Data Object 7   0x0

Type C State Register (0x69)
  Type C State Register
    CC Pin For PD       C_CC1 is CC pin
    CC1 Pin State       Rd detected (Source only)
    CC2 Pin State       Ra detected (Source only)
    Type C Port State   Reserved

GPIO Status Register (0x72)
  GPIO Status Register
    GPIO0 Data         0x1
    GPIO1 Data         0x0
    GPIO2 Data         0x0
    GPIO3 Data         0x0
    GPIO4 Data         0x0
    GPIO5 Data         0x1
    GPIO6 Data         0x0
    GPIO7 Data         0x0
    GPIO8 Data         0x0
    GPIO9 Data         0x0
    GPIO10 Data        0x0
    GPIO11 Data        0x0
    GPIO12 Data        0x0
    GPIO13 Data        0x0
    GPIO14 Data        0x0
    GPIO15 Data        0x0
    GPIO16 Data        0x0
    GPIO17 Data        0x0
    GPIO18 Data        0x0
    GPIO19 Data        0x0
    GPIO20 Data        0x0
    GPIO21 Data        0x0
    GPIO0 Direction    0x1
    GPIO1 Direction    0x0
    GPIO2 Direction    0x0
    GPIO3 Direction    0x0
    GPIO4 Direction    0x0
    GPIO5 Direction    0x1
    GPIO6 Direction    0x0
    GPIO7 Direction    0x1
    GPIO8 Direction    0x1
    GPIO9 Direction    0x0
    GPIO10 Direction   0x0
    GPIO11 Direction   0x0
    GPIO12 Direction   0x0
    GPIO13 Direction   0x0
    GPIO14 Direction   0x0
    GPIO15 Direction   0x1
    GPIO16 Direction   0x0
    GPIO17 Direction   0x0
    GPIO18 Direction   0x0
    GPIO19 Direction   0x0
    GPIO20 Direction   0x0
    GPIO21 Direction   0x0

    Device 1, port 0 Configuration Registers.txt 
    Customer Use (0x6)
  Customer Use
    Customer Use Word 1   0x0
    Customer Use Word 2   0x0

Interrupt Mask for I2C1 (0x16)
  Interrupt Mask for I2C1
    Soft Reset                                       False
    Hard Reset                                       False
    Power Path Event                                 False
    Plug Insert or Removal                           True
    PR Swap Complete                                 False
    DR Swap Complete                                 False
    Awoken by Host                                   False
    RDO Received from Sink                           False
    Built-In Self Test                               False
    Overcurrent Event                                False
    Attention Received                               False
    Vendor-Defined Message Received                  False
    New Contract as Consumer                         False
    New Contract as Provider                         False
    Source Capabilities Message Ready                False
    Sink Capabilities Message Ready                  False
    Swap Requested                                   False
    BIST Message Ignored                             False
    GotoMin Received                                 False
    USB Host Present                                 False
    USB Host Present No Longer                       False
    High Voltage Warning                             False
    Power Path Switch Changed                        False
    Power Status Update                              False
    Data Status Update                               True
    Status Update                                    False
    PD Status Update                                 False
    ADC Low Threshold                                False
    ADC High Threshold                               False
    CMD1 Complete                                    False
    CMD2 Complete                                    False
    Error: Device Incompatible                       False
    Error: Cannot Provide Voltage or Current         False
    Error: Cannot Provide Voltage or Current Later   False
    Error: Power Event Occurred                      False
    Error: Missing Get Capabilities Message          False
    Error: Protocol Error                            False
    Error: Message Data                              False
    Error: Discharge Failed                          False
    Sink Transition Complete                         False
    Error: Unable to Source                          False
    User SVID Mode Entered                           False
    User SVID Mode Exited                            False
    User SVID Attention VDM Received                 False
    User SVID Other VDM Received                     False

Interrupt Mask for I2C2 (0x17)
  Interrupt Mask for I2C2
    Soft Reset                                       False
    Hard Reset                                       False
    Power Path Event                                 False
    Plug Insert or Removal                           True
    PR Swap Complete                                 False
    DR Swap Complete                                 False
    Awoken by Host                                   False
    RDO Received from Sink                           False
    Built-In Self Test                               False
    Overcurrent Event                                False
    Attention Received                               False
    Vendor-Defined Message Received                  False
    New Contract as Consumer                         False
    New Contract as Provider                         False
    Source Capabilities Message Ready                False
    Sink Capabilities Message Ready                  False
    Swap Requested                                   False
    BIST Message Ignored                             False
    GotoMin Received                                 False
    USB Host Present                                 False
    USB Host Present No Longer                       False
    High Voltage Warning                             False
    Power Path Switch Changed                        False
    Power Status Update                              False
    Data Status Update                               True
    Status Update                                    False
    PD Status Update                                 False
    ADC Low Threshold                                False
    ADC High Threshold                               False
    CMD1 Complete                                    False
    CMD2 Complete                                    False
    Error: Device Incompatible                       False
    Error: Cannot Provide Voltage or Current         False
    Error: Cannot Provide Voltage or Current Later   False
    Error: Power Event Occurred                      False
    Error: Missing Get Capabilities Message          False
    Error: Protocol Error                            False
    Error: Message Data                              False
    Error: Discharge Failed                          False
    Sink Transition Complete                         False
    Error: Unable to Source                          False
    User SVID Mode Entered                           False
    User SVID Mode Exited                            False
    User SVID Attention VDM Received                 False
    User SVID Other VDM Received                     False

System Power State (0x20)
  System Power State
    Sleep Mode (When Allowed)   Do Not Sleep

System Configuration (0x28)
  System Configuration
    Port Information                                         Presents R_p on CC, no data/power role swap
    Receptacle Type                                          Standard fully-featured USB-C receptacle
    Type-C Current                                           3 A (strongest pullup)
    Type-C Current OCP Peak Current                          100%
    V_CONN Supported                                         VCONN supported as DFP/UFP (accept VCONN_Swap requests)
    High Voltage Warning Level                               Warning when source VBUS voltage exceeds 10% from nominal
    Low Voltage Warning Level                                Warning when source VBUS Voltage dips below 10% from nominal
    Over Voltage Protection Trip Point                       24 V
    Over Voltage Protection Usage                            Disconnect VBUS if voltage exceeds OVPTripPoint
    PP_5V0 Configuration                                     PP_5V0 switch configured for output
    PP_HV Configuration                                      PP_HV switch not used (disabled)
    PP_EXT Configuration                                     PP_EXT not used (disabled)
    BC 1.2 Enable                                            True
    USB RP Enable                                            True
    USB EP Enable                                            True
    USB3.0/3.1 Rate                                          USB3 Gen2 signaling rate supported
    USB2.0 Supported                                         True
    Audio Accessory Support                                  True
    Debug Accessory Support                                  True
    Powered Accessory Support                                False
    Rsense (External Sense Resistor)                         5 mOhm
    Try.Src (Try Source Support)                             True
    USB2.0 Endpoint Billboard Enable                         True
    External Power Path Over-Current Timeout Enable          Enabled
    External Power Path Over-current Timeout                 640 us
    Reset Z Timeout Count                                    2
    Reset Z Timeout Clock                                    640 us
    Vout3V3 (3.3 V output) threshold                         2.75 V
    Vout3V3 (3.3 V output) enable                            False
    Sense Disconnect on CC (in addition to VBUS) when Sink   False
    Set Under-voltage Protection to 4.5V always              True
    Under-voltage Protection Trip Point, PP_5V               20%
    Under-voltage Protection Usage, PP_HV                    20%
    UART Disable                                             Disabled
    Serial String Index                                      Serial Number String at Index 1
    Product String Index                                     Product String at Index 2
    Manufacturer String Index                                Manufacturer String at Index 3
    Billboard URL String Index                               Billboard URL String at Index 4
    Intel Thuderbolt Billboard String Index                  TBT Billboard String at Index 5
    DisplayPort Billboard String Index                       DisplayPort Billboard String at Index 6
    Custom Vendor ID 1 String Index                          No Custom Vendor ID 1 Billboard String
    Custom Vendor ID 2 String Index                          No Custom Vendor ID 2 Billboard String
    Custom Vendor ID 3 String Index                          No Custom Vendor ID 3 Billboard String
    Custom Vendor ID 4 String Index                          No Custom Vendor ID 4 Billboard String
    Internal 5V Power Path Over-Current Timeout Enable       Enabled
    Internal 5V Power Path Over-current Timeout              640 us
    Internal HV Power Path Over-Current Timeout Enable       Enabled
    Internal HV Power Path Over-current Timeout              640 us
    Voltage Threshold for Adjustable GPIO Event              0 V

Control Configuration (0x29)
  Control Configuration
    PD Mode                               Normal PD Behavior
    Externally Powered                    True
    Never Sink if Externally Powered      True
    Process Swap To Sink                  False
    Initiate Swap To Sink                 False
    Process Swap To Source                True
    Initiate Swap To Source               True
    RDO Intrusive Mode                    False
    PDO Intrusive Mode                    False
    Process VCONN Swap                    True
    Initiate VCONN Swap                   False
    Process Swap to UFP                   False
    Initiate Swap to UFP                  False
    Process Swap to DFP                   True
    Initiate Swap to DFP                  True
    Automatic Sink Capabilities Request   False
    Automatic ID Request                  True
    Intrusive Alternate Mode Support      False
    Force USB Generation 1                False
    I2C Timeout Period                    200 mS

Transmit Source Capabilities (0x32)
  Transmit Source Capabilities
    Tx Source PDO Config
      Number of Source PDOs   1
    Source PDO 1
      Switch Source           Internal 5 volt Power Path (PP_5V)
      Maximum Current         3 A
      Voltage                 5 V
      Peak Current            100%
      reserved                reserved, set 0
      USB Capable             True
      USB Suspend Supported   False
      Supply Type             Fixed Source
    Source PDO 2
      Advertised Mask   Always Advertise
      Switch Source     Internal High Voltage Power Path (PP_HV)
      Maximum Current   3 A
      Voltage           9 V
      Peak Current      100%
      reserved          reserved, set 0
      Supply Type       Fixed Source
    Source PDO 3
      Advertised Mask   Always Advertise
      Switch Source     Internal High Voltage Power Path (PP_HV)
      Maximum Current   3 A
      Voltage           15 V
      Peak Current      100%
      reserved          reserved, set 0
      Supply Type       Fixed Source
    Source PDO 4
      Advertised Mask   Always Advertise
      Switch Source     Internal High Voltage Power Path (PP_HV)
      Maximum Current   3 A
      Voltage           20 V
      Peak Current      100%
      reserved          reserved, set 0
      Supply Type       Fixed Source
    Source PDO 5
      Advertised Mask   Always Advertise
      Switch Source     Internal High Voltage Power Path (PP_HV)
      Maximum Current   0 A
      Voltage           0 V
      Peak Current      100%
      reserved          reserved, set 0
      Supply Type       Fixed Source
    Source PDO 6
      Advertised Mask   Always Advertise
      Switch Source     Internal High Voltage Power Path (PP_HV)
      Maximum Current   0 A
      Voltage           0 V
      Peak Current      100%
      reserved          reserved, set 0
      Supply Type       Fixed Source
    Source PDO 7
      Advertised Mask   Always Advertise
      Switch Source     Internal High Voltage Power Path (PP_HV)
      Maximum Current   0 A
      Voltage           0 V
      Peak Current      100%
      reserved          reserved, set 0
      Supply Type       Fixed Source

Transmit Sink Capabilities (0x33)
  Transmit Sink Capabilities
    Sink PDO Count
      Number of Sink PDOs   0
    Sink PDO 1
      Operating Current           0.9 A
      Voltage                     5 V
      Peak Current                100%
      reserved                    reserved, set 0
      Supply Type                 Fixed Sink
      Maximum Operating Current   0.9 A
      Minimum Operating Current   0.9 A
      Ask For Max                 True
    Sink PDO 2
      Operating Current           0.9 A
      Minimum Voltage             9 V
      Maximum Voltage             0 V
      Supply Type                 Variable Sink
      Maximum Operating Current   3 A
      Minimum Operating Current   0.9 A
      Ask For Max                 True
    Sink PDO 3
      Operating Current           0 A
      Voltage                     0 V
      Peak Current                100%
      reserved                    reserved, set 0
      Supply Type                 Fixed Sink
      Maximum Operating Current   0 A
      Minimum Operating Current   0 A
      Ask For Max                 False
    Sink PDO 4
      Operating Current           0 A
      Voltage                     0 V
      Peak Current                100%
      reserved                    reserved, set 0
      Supply Type                 Fixed Sink
      Maximum Operating Current   0 A
      Minimum Operating Current   0 A
      Ask For Max                 False
    Sink PDO 5
      Operating Current           0 A
      Voltage                     0 V
      Peak Current                100%
      reserved                    reserved, set 0
      Supply Type                 Fixed Sink
      Maximum Operating Current   0 A
      Minimum Operating Current   0 A
      Ask For Max                 False
    Sink PDO 6
      Operating Current           0 A
      Voltage                     0 V
      Peak Current                100%
      reserved                    reserved, set 0
      Supply Type                 Fixed Sink
      Maximum Operating Current   0 A
      Minimum Operating Current   0 A
      Ask For Max                 False
    Sink PDO 7
      Operating Current           0 A
      Voltage                     0 V
      Peak Current                100%
      reserved                    reserved, set 0
      Supply Type                 Fixed Sink
      Maximum Operating Current   0 A
      Minimum Operating Current   0 A
      Ask For Max                 False

Autonegotiate Sink (0x37)
  Autonegotitate Sink
    General Settings
      Autonegotiate Sink Enable            True
      Autonegotiate Variable Sink Enable   True
      Autonegotiate Battery Sink Enable    True
      USB Communication Capable            True
      Offer Priority                       Choose Highest Voltage
      No USB Suspend                       True
      Giveback Flag                        False
    Capabilities Mismatch Determination
      Automatically Calculate Min Power Required   False
      Minimum Power Required                       0 W

Alternate Mode Entry Queue (0x38)
  Alternate Mode Entry Queue
    Alternate Mode Entry Queue record #1
      SVID (Standard or Vendor ID)   0xff01
      Mode Number                    0x1
    Alternate Mode Entry Queue record #2
      SVID (Standard or Vendor ID)   0x0
      Mode Number                    0x0
    Alternate Mode Entry Queue record #3
      SVID (Standard or Vendor ID)   0x0
      Mode Number                    0x0

Transmit Identity Data Object (0x47)
  Transmit Identity Data Object
    Record Counts
      Number of UFP Identity Objects                    3
      Number of SOP' (Tethered Plug) Identity Objects   0
    UFP Discover Identity Response
      UFP IDO Header
        USB Vendor ID                0x451
        Modal Operation Supported    True
        Product Type                 Undefined
        Data Capable as USB Device   True
        Data Capable as USB Host     True
      Product Vendor Defined Object
        BCD Device       0x10
        USB Product ID   0x1234
      Alternate Mode Adapter VDO
        USB SS Signalling       USB 2.0 Only
        VBus Required           False
        VConn Required          False
        VConn Power             1 W
        SSRx 2 Directionality   Fixed
        SSRx 1 Directionality   Fixed
        SSTx 2 Directionality   Fixed
        SSTx 1 Directionality   Fixed
        AMA Firmware Version    0x0
        AMA Hardware Version    0x0
      Certification Test ID   0x451
      UFP IDO VDO #5          0x0
      UFP IDO VDO #6          0x0
    SOP' (Tethered Plug) Discover Identity Response
      SOP' (Tethered Plug) IDO Header
        USB Vendor ID                0x0
        Modal Operation Supported    False
        Product Type                 Undefined
        Data Capable as USB Device   False
        Data Capable as USB Host     False
      Product Vendor Defined Object
        BCD Device       0x0
        USB Product ID   0x0
      Cable Vendor Defined Object
        USB SS Signalling         USB 2.0 Only
        SOP" Controller Present   False
        VBus Through Cable        False
        VBus Current Capability   1.5 A
        SSRx 2 Directionality     Fixed
        SSRx 1 Directionality     Fixed
        SSTx 2 Directionality     Fixed
        SSTx 1 Directionality     Fixed
        Cable Termination Type    Both Ends Passive, VConn Not Required
        Cable Latency             reserved (0000b)
        Type-C Plug/Receptacle    Plug
        Type-C to Type-A/B/C      Type-A
        Cable Firmware Version    0x0
        Cable Hardware Version    0x0
      Certification Test ID             0x0
      SOP' (Tethered Plug) IDO VDO #5   0x0
      SOP' (Tethered Plug) IDO VDO #6   0x0

User Alternate Mode Config (0x4a)
  User Alternate Mode Config
    General Settings
      User VID Enabled                             False
      User Alternate Mode VID (Vendor ID)          0x0
      User Alternate Mode Billboard String Index   0x0
      User VID Mode 1 Enabled                      False
      User VID Mode 2 Enabled                      False
      User VID Mode 3 Enabled                      False
      User VID Mode 4 Enabled                      False
    User Alternate Mode #1 Settings
      Mode Value                                   0x0
      User VID Mode Autoentry Enabled              False
      Automatically Send VDM on Mode Entry         False
      Load App Config set On Mode Entry and Exit   False
    User Alternate Mode #2 Settings
      Mode Value                                   0x0
      User VID Mode Autoentry Enabled              False
      Automatically Send VDM on Mode Entry         False
      Load App Config set On Mode Entry and Exit   False
    User Alternate Mode #3 Settings
      Mode Value                                   0x0
      User VID Mode Autoentry Enabled              False
      Automatically Send VDM on Mode Entry         False
      Load App Config set On Mode Entry and Exit   False
    User Alternate Mode #4 Settings
      Mode Value                                   0x0
      User VID Mode Autoentry Enabled              False
      Automatically Send VDM on Mode Entry         False
      Load App Config set On Mode Entry and Exit   False
    Autosend VDM Data
      Autosend VDM VDO Count         0
      Autosend VDM VDO 1 Data        0x0
      Autosend VDM VDO 2 Data        0x0
      Autosend VDM VDO 3 Data        0x0
      Autosend VDM VDO 4 Data        0x0
      Autosend VDM VDO 5 Data        0x0
      Autosend VDM VDO 6 Data        0x0
      Autosend VDM Vendor Use Data   0x0

Display Port Capabilities (0x51)
  Display Port Capabilities
    Enable Display Port SID                       True
    Enable Display Port Mode 1                    True
    Port Capability                               DP DFP_D only
    DisplayPort Signalling                        DP 1.3
    Receptacle Indication                         Receptacle
    USB2.0 Signalling Not Used                    False
    DFPD Receptacle or UFPD Plug Pin Assignment   C, E
    UFPD Receptacle or DFPD Plug Pin Assignment   (none)
    Multifunction Preferred                       False
    Mux Swap                                      False
    DisplayPort Mode Auto Entry Allowed           False
    Billboard Index                               6

Texas Instruments VID Config (0x54)
  Texas Instruments VID Config
    Enable Texas Instruments VID   False
    Enable PDIO Mode               False
    Enable PDIO Mode Autoentry     False
    Message Index                  0b00000111
    PDIO Signature                 0b00000000000000010000010001010001

GPIO Event Map (0x5c)
  GPIO Event Map
    Settings for GPIO #0
      Output Enable               True
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           LDO3V3
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      GPIO
      Mapped Event                Plug Event
    Settings for GPIO #1
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #2
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #3
      Output Enable               True
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           LDO3V3
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      GPIO
      Mapped Event                Output Enabled Without Event
    Settings for GPIO #4
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #5
      Output Enable               True
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           LDO3V3
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      GPIO
      Mapped Event                Output Enabled Without Event
    Settings for GPIO #6
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #7
      Output Enable               True
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           LDO3V3
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      GPIO
      Mapped Event                Output Enabled Without Event
    Settings for GPIO #8
      Output Enable               True
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           LDO3V3
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      GPIO
      Mapped Event                Output Enabled Without Event
    Settings for GPIO #9
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #10
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #11
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #12
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #13
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #14
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #15
      Output Enable               True
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           LDO3V3
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      GPIO
      Mapped Event                Port Connected CC2 (Cable Orientation Event)
    Settings for GPIO #16
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    Settings for GPIO #17
      Output Enable               False
      Interrupt Enable            False
      Initial Value               0b0
      Open Drain Output Enable    False
      GPIO Output Level           VDDIO
      Internal Pull Down Enable   False
      Internal Pull Up Enable     False
      Map Pin to GPIO or ADC      ADC (Hi-Z)
      Mapped Event                Disabled
    GPIO Event #0 -- Plug Event
      GPIO Number    GPIO 0
      Event Enable   True
    GPIO Event #1 -- Port Connected CC2 (Cable Orientation Event)
      GPIO Number    GPIO 15
      Event Enable   True
    GPIO Event #2 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #3 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #4 -- Source (1) / Sink (0) / Unattached (High-Z) event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #5 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #6 -- Fault Condition (Active Low) Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #7 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #8 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #9 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #10 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #11 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #12 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #13 -- Either DP or USB Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #14 -- DP Mode Selection Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #15 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #16 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #17 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #18 -- Supply P5V Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #19 -- Supply HV Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #20 -- Supply HVE Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #21 -- Supply PPCable Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #22 -- Attached (Active Low) Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #23 -- VBUS Detect Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #24 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #25 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #26 -- reserved
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #27 -- P5V Overcurrent Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #28 -- Sink (1) / Source (0) Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #29 -- USB3 Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #30 -- USB2 Event
      GPIO Number    GPIO 0
      Event Enable   False
    GPIO Event #31 -- 2-lane DP Event
      GPIO Number    GPIO 0
      Event Enable   False

Miscellaneous Configuration (0x5e)
  Miscellaneous Configuration
    Miscellaneous Configuration
      DP Hot Plug Detect GPIO      GPIO 4 is HPD Transmit and Receive
      External Reset from MReset   False
      External Reset Polarity      False
      Ignore Good CRC Mismatch     False
      Lock 3V3 Output              False
      Use 3V3 for I2C1 Level       True
      Use 3V3 for I2C2 Level       True
    App Config Group 1 Settings
      App Config Mask, GPIO Low Transition or User AM Exit     0x1
      App Config Mask, GPIO High Transition or User AM Enter   0x2
      Command Channel to use for Command (not Task) Slot       CMD3 (0x1E)
      Reserved                                                 Reserved, Set 0
      Command Channel to use for Command or Task Slot          CMD3 (0x1E)
      Reserved                                                 Reserved, Set 0
      Alt Mode Entry / GPIO High 4CC Command (not Task)        !CMD
      Alt Mode Entry / GPIO High 4CC Command or Task           !CMD
      Alt Mode Exit / GPIO Low 4CC Command (not Task)          !CMD
      Alt Mode Exit / GPIO Low 4CC Command or Task             !CMD
    App Config Group 2 Settings
      App Config Mask, GPIO Low Transition or User AM Exit     0x0
      App Config Mask, GPIO High Transition or User AM Enter   0x0
      Command Channel to use for Command (not Task) Slot       CMD3 (0x1E)
      Reserved                                                 Reserved, Set 0
      Command Channel to use for Command or Task Slot          CMD3 (0x1E)
      Reserved                                                 Reserved, Set 0
      Alt Mode Entry / GPIO High 4CC Command (not Task)        !CMD
      Alt Mode Entry / GPIO High 4CC Command or Task           !CMD
      Alt Mode Exit / GPIO Low 4CC Command (not Task)          !CMD
      Alt Mode Exit / GPIO Low 4CC Command or Task             !CMD
    App Config Group 3 Settings
      App Config Mask, GPIO Low Transition or User AM Exit     0x0
      App Config Mask, GPIO High Transition or User AM Enter   0x0
      Command Channel to use for Command (not Task) Slot       CMD3 (0x1E)
      Reserved                                                 Reserved, Set 0
      Command Channel to use for Command or Task Slot          CMD3 (0x1E)
      Reserved                                                 Reserved, Set 0
      Alt Mode Entry / GPIO High 4CC Command (not Task)        !CMD
      Alt Mode Entry / GPIO High 4CC Command or Task           !CMD
      Alt Mode Exit / GPIO Low 4CC Command (not Task)          !CMD
      Alt Mode Exit / GPIO Low 4CC Command or Task             !CMD

Sleep Control Register (0x70)
  Sleep Control Register
    Sleep Mode Allowed            False
    Delay 100 mS Before Sleep     False
    Delay 1000 mS Before Sleep    False
    Delay 30000 mS Before Sleep   False
    Sleep on 5V non-PD Load       False
    I2C Relax Response Level      0b00000000

  • 0 in reply to domenyko
    TI__Mastermind 36751 points
    Hi Domenyko,

    It seems that the TPS65981 is not detecting a device on the other end of the cable. The TPS65981 will not provide VBUS until a connection has established per the USB Type-C PD spec. What device are you connecting on the other end of the cable?

    Thanks,
    Eric
  • 0 in reply to Eric Beljaars
    TI__Genius 9655 points
    Hi Eric,
    the designer has tried with 2 different cable:
    DP alt mode and HDMI alt mode.

    if you think that the schematic may help, we may continue the conversation by email.
    regards,
    Domenico
  • 0 in reply to domenyko
    TI__Mastermind 36751 points
    Hi Domenyko,

    Are they attaching anything to the other end of the cable? We will not make a connection unless the correct resistances are presented on the CC line by the connected device. I would suggest ordering a TPS65981EVM and seeing if the issue can be reproduced on that board. In that case, you have a known working platform for debugging.

    Thanks,
    Eric
  • 0 in reply to Eric Beljaars
    TI__Genius 9655 points

    Hi Eric,

    On the other end of the cable there is HDMI/DP monitor of HP.

    The CC lanes are detected in the right way, see registed 0x69, C_CC1 is used for PD protocol and C_CC2 for PP_CABLE:

    Type C State Register (0x69)
      Type C State Register
        CC Pin For PD       C_CC1 is CC pin
        CC1 Pin State       Rd detected (Source only)
        CC2 Pin State       Ra detected (Source only)
        Type C Port State   Reserved

     regards,

    Domenico 

  • 0 in reply to domenyko
    TI__Mastermind 36751 points
    Hi Domenico,

    I suggest getting a TPS65981EVM and running this same test using the 81EVM. This would let us know if the issue is in the hardware or the configuration. This would also allow us to have a reproducible platform for debugging.

    Thanks,
    Eric
  • 0 in reply to Eric Beljaars
    TI__Genius 9655 points

    Hi Eric,

    The test with EVM were fine. When the cable is connected, the peripheral is recognized and the PD  procedure contract works.  In the board of the cusotmer only the CC orientation is detected.

    I've attached the dump of the registers of both EVM and customer's board.

    Do you have any hint ?

    regards,

    Domenico

    TPS65981_evm_vs_customer_20190314.zip

  • 0 in reply to domenyko
    TI__Mastermind 36751 points
    Hi Domenyko,

    It looks like the configuration settings on each board is identical (Please confirm).
    If that is the case, I would suggest looking into hardware differences between the TPS65981EVM and the customer board.

    Thanks,
    Eric
  • 0 in reply to Eric Beljaars
    TI__Genius 9655 points

    Hi Eric,

    correct the configuration setting are identical. We have collected some screenshot of the CC1, CC2 and Vbus signals.

    The signals of the customer's board seem to be smoother that the signal of the EVM.

    it seems that the device does not have enough strength to drive the lines. 

    Have you never seen something similar (I've attached the screenshots). 

    I was thinking if wrong capacitors (mounted by mistake) could give these effects.

    regards,

    DomenicoTPS65981EVM_NOX_acq20190315.zip

  • 0 in reply to domenyko
    TI__Mastermind 36751 points
    Hi Domenico,

    From the scope captures, it looks like there is something hanging on the CC lines on the NOX board. Could you check to ensure that there are no components on the CC lines? There should only be a small ~220pF capacitor on the CC lines.

    Thank you,
    Eric
  • 0 in reply to domenyko
    TI__Genius 9655 points

    Hi Eric,

    thanks for the hints.

    the issue related to the CC signals have been solved: wrong capacitors were mounted on the board.

    Now the next step is related to the Hot Plug Detection on GPIO4. Using a probe the signal is effectively High "1", but the Configuration Tool in debug mode sees it as Low "Zero".

    Any suggestions ?

    I'm going to order the expansion board  for deeper test.

    regards,

    Domenico

  • 0 in reply to domenyko
    TI__Mastermind 36751 points
    Hi Domenico,

    The HPD signal should be read using the DP SID Status Register (0x58). The GPIO status register would not be able to determine the state of the HPD GPIO.

    Thank you,
    Eric
  • 0 in reply to Eric Beljaars
    TI__Genius 9655 points

    Hi Eric,

    thanks.

    I was in the lab with the customer and I've seen that the connector used to interface the peripherl (Monitor with HDMI input) is a USB type C.

    The customer is using a cable (USB-C to HDMI) which inside has a format converter (STARTECH.com - CDP2HDMM2MB).

    Is there any chance that the cable with converter inside is the rootsource ?  since the designers is take as example the circuit showed in fig.3 of SLLA333, which cable has been used to connect a peripheral ?

    regards,

    Domenico

  • 0 in reply to domenyko
    TI__Mastermind 36751 points
    Hi Domenico,

    Just to confirm: is the USB Type-C port the video source? Are they connecting the type-c end of the cable to the laptop and the HDMI end to the monitor? Keep in mind that many of these cables are uni-directional and will only allow video to stream in one direction. Additionally, do you have Pin Assignment E enabled in your DisplayPort config register? These cables typically use DP pin assignment E to function. Finally, if you have a PD analyzer, we could see the PD negotiation process between the TPS65981 and the cable to ensure that is all working correctly.

    Thank you,
    Eric
  • 0 in reply to Eric Beljaars
    TI__Genius 9655 points
    Hi Eric,

    below the anwers to your questions:

    Just to confirm: is the USB Type-C port the video source?
    Yes
    Are they connecting the type-c end of the cable to the laptop and the HDMI end to the monitor?
    Yes
    Keep in mind that many of these cables are uni-directional and will only allow video to stream in one direction. Additionally, do you have Pin Assignment E enabled in your DisplayPort config register?
    Yes
    These cables typically use DP pin assignment E to function. Finally, if you have a PD analyzer, we could see the PD negotiation process between the TPS65981 and the cable to ensure that is all working correctly.
    The equipment is not available.

    regards,
    Domenico
  • 0 in reply to domenyko
    TI__Mastermind 36751 points
    Hi Domenico,

    I'm not sure if this issue is related to the PD controller. From what we have discussed, your configuration settings look correct and you seem to be correctly entering the DP alternate mode. I would suggest reaching out to the HSSC team to see if there are any issues with the high speed mux implementation.

    Thank you,
    Eric