TUSB2046B: And TPS2044, keep getting the power surge warning

Do you have pullups installed on the OVERCUR/ inputs to the hub?  It sounds like an overcurrent event is getting flagged.

Regards,

JMMN

I installed pull-up for all 4 OVERCUR Pins, now this what I see:

1. without any load, I still have power surge warning.

2. with load(keyboard), no power surge warning, but system still not recognize my device.  

question: should I do anything for PWRON4 pin, its no connect now. 

Hello JMMN,

I have 100uF for each usb port.

This is what I read from usb device tree:

    =========================== USB Port1 ===========================

Connection Status        : 0x02 (Device failed enumeration)
Port Chain               : 2-12-1

Device Manager Problem   : 43 (CM_PROB_FAILED_POST_START)
Used Endpoints           : 0

      ======================== USB Device ========================

        +++++++++++++++++ Device Information ++++++++++++++++++
Device Description       : Unknown USB Device (Port Reset Failed)
Device ID                : USB\VID_0000&PID_0001\6&98B719B&0&1
Hardware IDs             : USB\RESET_FAILURE
Driver KeyName           : {36fc9e60-c465-11cf-8056-444553540000}\0013 (GUID_DEVCLASS_USB)
Driver Inf               : C:\Windows\inf\usb.inf
Legacy BusType           : PNPBus
Class                    : USB
Class GUID               : {36fc9e60-c465-11cf-8056-444553540000} (GUID_DEVCLASS_USB)
Enumerator               : USB
PDO                      : \Device\USBPDO-7
Location Info            : Port_#0001.Hub_#0003
Manufacturer Info        : (Standard USB Host Controller)
Capabilities             : 0x64 (Removable, SilentInstall, RawDeviceOK)
Status                   : 0x01806400 (DN_HAS_PROBLEM, DN_DISABLEABLE, DN_REMOVABLE, DN_NT_ENUMERATOR, DN_NT_DRIVER)
Problem Code             : 43 (CM_PROB_FAILED_POST_START)
Address                  : 1
HcDisableSelectiveSuspend: 0
EnableSelectiveSuspend   : 0
SelectiveSuspendEnabled  : 0
EnhancedPowerMgmtEnabled : 0
IdleInWorkingState       : 0
WakeFromSleepState       : 0
Power State              : D3 (supported: D0, D2, D3, wake from D0, wake from D2)

        ---------------- Connection Information ---------------
Connection Index         : 0x01 (Port 1)
Connection Status        : 0x02 (DeviceFailedEnumeration)
Current Config Value     : 0x00 (Configuration 0)
Device Address           : 0x00 (0)
Is Hub                   : 0x00 (no)
Device Bus Speed         : 0x00 (Low-Speed)
Number Of Open Pipes     : 0x00 (0 pipes to data endpoints)
Data (HexDump)           : 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
                           00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02   ................
                           00 00 00                                          ...

        --------------- Connection Information V2 -------------
Connection Index         : 0x01 (1)
Length                   : 0x10 (16 bytes)
SupportedUsbProtocols    : 0x01
 Usb110                  : 1 (yes, port supports USB 1.1)
 Usb200                  : 0 (no, port not supports USB 2.0)
 Usb300                  : 0 (no, port not supports USB 3.0)
 ReservedMBZ             : 0x00
Flags                    : 0x00
 DevIsOpAtSsOrHigher     : 0 (Device is not operating at SuperSpeed or higher)
 DevIsSsCapOrHigher      : 0 (Device is not SuperSpeed capable or higher)
 DevIsOpAtSsPlusOrHigher : 0 (Device is not operating at SuperSpeedPlus or higher)
 DevIsSsPlusCapOrHigher  : 0 (Device is not SuperSpeedPlus capable or higher)
 ReservedMBZ             : 0x00
Data (HexDump)           : 01 00 00 00 10 00 00 00 01 00 00 00 00 00 00 00   ................

    ---------------------- Device Descriptor ----------------------
bLength                  : 0x00 (0 bytes)

      -------------------- String Descriptors -------------------
String descriptors are not available  (because the device has problem code CM_PROB_FAILED_POST_START)


I think the computer can communicate to usb hub, but the usb ic not ok with the power, or some other thing I missed.
I will upload the latest schematic.

the latest schematic

Can you check if the crystal starts?

Can you check what occurs on the DP/DM lines between the host and the hub?

Regards,

JMMN

Hello JMMN,

The issue was I did not separate the 5V for each usb port. causing there have 4 modes of the UBS hub ic, I selected the individual self-power mode, but I did not individually that downstream 5V. Now I need to collect those. 

Thank you