he USB HOST is working perfectly but problem in USB DEVICE TM4C123G

Hello Utpal,

Did you try to reuse the existing usb drivers for Tiva. Download the USBLIB & stellaris_icdi_drivers package and in the device manager point the unknown device to the location where you unzip or install the packages.

Also a snapshot of what you have in the Device Manager would be useful information (in case I have read the post incorrectly)

Regards

Amit

Dear Amit Sir,

Thanks for your suggestions ,i will try the same & let  you know the results.

TIll then please find the attached snapshot.

Kindly have a look & suggest.2867.USB DEVICE PROBLEM.docx

Hello Utpal

I would suggest using the usb_dev_serial to get the drivers installed correctly, which will base line your drivers and then switch to the application you have

Regards

Amit

Dear Amit Sir,

I had reinstalled all the required drivers ,i am using Ek- LM4F232  evm along with example code for USB_dev_serial from stellarisware.

i tried on multiple PC with WindowsXp  OS , few PC is detecting both the ports 

Stellaris Virtual Serial Port

Tivaware USB Serial Port.

but on few PC no USB serial Port is detecting. i had checked all required drivers are properly installed ,but still facing the issue .please let me know  how to debug & resolve the issue.

Please find the screen shots for device manager for both type of PCs (detecting COM port & non detecting COM port

1108.USB DEVICE PROBLEM.docx

0118.snap detected usb DEVICE PC.docx)

Thanks 

Utpal