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[FAQ] How do I resolve PAMB EVM connectivity and/or driver installation issues

Christopher Hall
Mastermind 44550 points

I got the following error message when running an EVM GUI, how do I resolve it?

NOTE: The "SCB" and "PAMB" boards utilize the same USB drivers, so this information is equally applicable to the SCB-based EVMs...

 

 

  • 0
    TI__Mastermind 44550 points

    If you are using Windows 7 or Window 8.1, you will need to download and install the PAMB USB drivers from here:

    http://www.ti.com/lit/zip/sbac253 

    If you are using Windows 10, downloading and installing there drivers is not required, but if you are experiencing connectivity issues, downloading and re-installing these drivers can often resolve most problems.

     

    BEFORE installing these drivers...
    Avoid using long USB cables and USB hubs when connecting to the EVM. If you have another USB cable or another USB port on your machine, try using a different cable and also switching to a different USB port**, especially if you have not manually installed the PAMB drivers on your computer before. Automatic driver detection/installation can often be hindered by indirect connections to the EVM.

    ** NOTE: Some USB ports may be connected to an internal USB hub. If you have a Desktop PC, try connecting to USB ports on the back side to establish a more direct connection between the motherboard and EVM.

     

    AFTER installing these drivers...
    If you are still having issues and have previously connected the PAMB board to your PC, you may need to manually associate the device drivers to the connected device. To do this follow the steps below:

    1. Open Windows Device Manager and locate the unknown device.

      NOTE: Unknown devices usually have the following symbol on the device icon: 

      To check if you have identified the correct device, disconnect and reconnect the PAMB board to your PC...The "Unknown Device" should only be shown when the PAMB board is connected!


    2. Right-click on the device and select "Update driver":


    3. Click "Browse my Computer for driver software":


    4. Click "let me pick from a list of drivers on my computer":


    5. Click "Show All Devices" then click next:


    6. Click "Have Disk":


    7. In the pop-up window, click "Browse..."


    8. Navigate to C:\Program Files(x86)\Texas Instruments\Drivers\PAMB and select the appropriate INF driver file.


      1. Use "boot_usb.inf" file for the Tiva/Stellaris Device Firmware Update device.

      2. Use "usb_dev_bulk_com.inf" file for the WinUSB Generic Bulk device
        (This device has a hardware ID of USB\VID_1CBE&PID_00AB&MI_00).

      3. Use the "usb_dev_serial_com.inf" file for the Serial COM port device
        (This device has a hardware ID of USB\VID_1CBE&PID_00AB&MI_01).

    9. Click "OK":



    10. Click "Next":


    11. NOTE: Windows may display a pop-up message warning you that the device driver is not compatible with this device. This is OK - Windows shows this message when it is unsure of driver compatibility; click to proceed anyways.

    12. Finally, click "Close": 

    images.zip