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TM4C1294NCPDT: tm4c1294 access multiple IN bulk endpoints via WinUSB

Lukasz Huchel
Expert 1420 points
Part Number: TM4C1294NCPDT

Hi,

I have started my project based on the usbdbulk project. I need to use 3 IN endpoints. I am using WinUSB library to access transmitted data in Windows 7. It works when I try to receive and send data (one IN and one OUT pipe), however, I cannot succeed with multiple IN transmissions. My application recognizes that more than one IN pipe was configured by MCU but I always read data from 1 endpoint. Did anyone here use WinUSB for this purpose? 

I know it is TI forum but I have no clue now.

Thanks

  • 0
    TI__Guru*** 135355 points
    Hello Lukasz,

    I am not familiar with multiple endpoint implementations, but I would suggest maybe looking at the usb_dev_cserial example as I believe that is setup to have multiple endpoints.

    As far as WinUSB library goes, I haven't heard of anyone using it yet. Are you using that over DriverLib/TI UsbLib, or in conjunction with DriverLib/TI UsbLib?
  • 0 in reply to Ralph Jacobi
    Expert 1420 points
    I do use DriverLib/TI UsbLib. I believe my problem is more on WinUSB side more of PC application reading each IN channel. I hoped someone here was using WinUSB to access data.
  • 0 in reply to Lukasz Huchel
    TI__Guru*** 135355 points
    Hello Lukasz,

    Ah I see. Sorry to say I don't have experience with that. Hopefully someone else in the community will come along who does though. Your title and description is good, so if someone has such knowledge they should come across this thread easily enough. Best of luck.