USB superspeed peripherals Forum Discussions

Hello,

I am using the USB3 Development Kit by Lattice (Lattice USB3 Video Bridge Development Kit - Lattice Semiconductor ). I plan to connect it ultimatly to a raspberry Pi in order to Stream the HDMI Input.

While I am able to run it without any Problems as a videoinput on a Windows Device, it wont work with any Linux Device I tried.

I configured the CX3 output to 640x480p@60Hz. It was possible to use the Windows USB 2.0 Port with.

First I tried to get it work directly with the Rapberry Pi 3b+ running Raspbian (debian stretch), where it lists as video input ( $ ls /dev/video* ) but is not possible to use any further.

Second I tried to connect the Development Kit on PC running Ubuntu 16.04, here it is not even recognized as a video Input. Am I missing drivers?

I always though, anything with the cx3 should run "out of the box" if it is configured as a UVC-Device?

As I said, I would really like to get it working with the Raspberry Pi, but maybe its easier to start with the PC?

Best Regards,

Vitus

Hi, I am Tony.

I have two USB3014 Data acquisition board connecting with only one  PC . And could open two device successfully use open(i) function.However, the device(0) could work nomally and device(1) could not transfer data  at the same time in bulk transmission mode. I  want to ask the question that how could acquire two USB3.0 interface data at the same time in one host software.thanks

Hello,

  several calls of the CyU3PDebugPrint() function used in the SDK examples. With this function calls debug messages should be transmitted via UART/RS232.

Debug Messages are sent I added a CyU3PDebugPrint() call in the for (;;) loop of the BulkLpAppThread_Entry() function of the bulklpautocpp example.

My problem is that I do not receive any debug message at teraterm . And also could not measure anything at the UART Pins. I work with the FX3S DVK Device Board.How could this problem be solved?

If i connect jumper on SPI i can able to see junk messages in terminal . If i connect jumper with uart  no messages in terminal.

Regards

Rajalakshmi

Hi Everyone,

I have made a uvc project by taking reference from AN5779 example, my project is not working and there is no output in vlc. i want to check where is the problem so i have put debug messages in the routines but i am not getting debug messages in terminal. I have initialised and configured the UART and i am using from gpio 0 to 15 for input. Can you please tell me why i am not getting debug messages?

Thanks

Hi

    I run AN75779 demo in usb device side and ensure there is   a UVC device named FX3 in device manager in windows.But I failed to enumerate it using CyUSB API USBDeviceList .

        The host code(Form1.cs)detail is as following:

        public Form1()

        {

            InitializeComponent();

            usbDevices = new USBDeviceList(CyConst.DEVICES_CYUSB);

            usbDevices.DeviceAttached += new EventHandler(usbDevices_DeviceAttached);

            usbDevices.DeviceRemoved += new EventHandler(usbDevices_DeviceRemoved);

            setDevice();

        }

        public void setDevice()

        {

            int nCurSelection = 0;

            if (cboDeviceConnected.Items.Count > 0)

            {

                nCurSelection = cboDeviceConnected.SelectedIndex;

                cboDeviceConnected.Items.Clear();

            }

            int nDeviceList = usbDevices.Count;     //here get 0

            for (int nCount = 0; nCount < nDeviceList; nCount++)

            {

                USBDevice fxDevice = usbDevices[nCount];

                String strmsg;

                strmsg = "(0x" + fxDevice.VendorID.ToString("X4") + " - 0x" + fxDevice.ProductID.ToString("X4") + ") " + fxDevice.FriendlyName;

                cboDeviceConnected.Items.Add(strmsg);

            }

            if (cboDeviceConnected.Items.Count > 0)

                cboDeviceConnected.SelectedIndex = nCurSelection;

            myDevice = usbDevices[cboDeviceConnected.SelectedIndex] as CyUSBDevice;

            //StartBtn.Enabled = (myDevice != null);

            if (myDevice != null)

                Text = myDevice.FriendlyName;

            else

                Text = "C# UVC - no device";

         }

         private void cboDeviceConnected_SelectionChangeCommitted(object sender, EventArgs e)

        {

            setDevice();

        }

    As a contrast,I repower the FX3 board and it is a Cypress FX3 USB BootLoader Device in  USB Control Center. At the time I run my host code and it can enumerate the bootloader device using USBDeviceList API.

    I appreciate any help, thank you,

     Attachment is my host code.

Hello,

can i define both msc and vendor usb class in one descriptor file(one application) in fx2lp and fx3?

regards,

geetha.