USB superspeed peripherals Forum Discussions

We have designed custom board for camera video out  in UVC mode. Video out work fine USB2.0 but there is no video when connecting USB3,0 port but the device details PID,VID in device manager are correct. Please suggest steps to troubleshoot the issue.

Thanks,

Jayaram

Hello,

I want to implement a SPI communication between the PC (host application) and the FPGA, via the FX3 device. I want to both send and receive data simultaneously. I want to send some commands to the FPGA and be able to get the FPGA’s response.

I am using the UsbSpiRegMode firmware code example, and the functions CyU3PSpiTransmitWords and CyU3PSpiReceiveWords in same SS low/high period, or the function CyU3PSpiTransferWords. With the functions CyU3PUsbSendEP0Data and CyU3PUsbGetEP0Data.

But on the host application (Control Center), the control point can use either Write or Read (Out or In), but not Write/Read at the same time.

On the host application, I can send successfully some data to the FPGA but I am not able to read the data that are coming from the MISO line (FPGA's response).

How can I do both send and receive data simultaneously?

Thank you.

Jean.

it takes at least 90s to config fpga via fx3 in slave selectMAP mode ， while the bitfile is about 8MB.

how can i reduce the time cost? where can i change config clock?

thanks。

Hello

I use the CMOS sensor below to create the FW, and I want to set H-Blanking and V-blanking time.

maker  : Omnivision

Product : OV2312

output I/F: MIPI

Resolution : 1280 x 720@60fps

Format  : RAW10

However, I can not get the H-Blanking and V-Blanking time from CMOS maker.In this case,  Is there any other method to know the H and V-Blanking period?

Best Regards

Arai

Hi there,

I wrote a tiny app to know how many data requests can be sent (received) to (from) FX3 device. According to USB specification it must be one request per each millisecond or 1000 requests per second, but I need to be sure. So part of my EP0 callback looks like:

...  
if (SetupRequest.DirDevToHost
    && (SetupRequest.Type == (CY_U3P_USB_VENDOR_RQT >> 5))
    && (SetupRequest.Target == CY_U3P_USB_TARGET_INTF))
    {
    switch (SetupRequest.Value) {
    // Sending 16 bytes of data TO host
    case VENDOR_CONTROL_REQUEST:
    request_counter++;
    CyU3PUsbSendEP0Data(SetupRequest.Length, Ep0Buffer);
    isHandled = CyTrue;
    break;
    default:
    CyU3PDebugPrint(CY_FX_DEBUG_PRIORITY, "Unknown vendor code received (%d)\r\n", SetupRequest.Value);
    CyU3PUsbStall (0, CyTrue, CyFalse);
    }
}
if (!SetupRequest.DirDevToHost
    && (SetupRequest.Type == (CY_U3P_USB_VENDOR_RQT >> 5))
    && (SetupRequest.Target == CY_U3P_USB_TARGET_INTF))
    {
    switch (SetupRequest.Value) {
    // Receiving 16 bytes of data FROM host
    case VENDOR_CONTROL_REQUEST:
    request_counter++;
    CyU3PUsbGetEP0Data(SetupRequest.Length, Ep0Buffer, &br);
    isHandled = CyTrue;
    break;
    default:
    CyU3PDebugPrint(CY_FX_DEBUG_PRIORITY, "Unknown vendor code received (%d)\r\n", SetupRequest.Value);
    CyU3PUsbStall (0, CyTrue, CyFalse);
    }
}
...

Next, I attach FX3 to USB 3.0 port and start to send 1000 vendor requests to EP0. The result is perfect: 1000 requests in ~1000 ms.

Starting 1000 control requests from Host to Device...
  Completed in: 1007 ms
Starting 1000 control requests from Device to Host...
  Completed in: 1000 ms

But when I attach FX3 to USB 2.0 port something strange happens. Device to host requests take a lot of time: 1000 requests in ~11 seconds!

Starting 1000 control requests from Host to Device...
  Completed in: 1000 ms
Starting 1000 control requests from Device to Host...
  Completed in: 10969 ms

I have tried on different computers (desktop, laptop), on different OS'es (Windows, Linux), on different libs (libusb, libusbK), the result was the same. Finally, as I found it started to work properly when I turned off DMA multi channel. Just commented lines below and data rate from device to host has returned to normal speed.

/* Set DMA Channel transfer size */
// apiRetStatus = CyU3PDmaMultiChannelSetXfer (&DmaChInHandle, 0, 0);
// if (apiRetStatus != CY_U3P_SUCCESS)
// {
//     CyU3PDebugPrint (CY_FX_DEBUG_PRIORITY, "CyU3PDmaMultiChannelSetXfer failed, Error code = %d\r\n", apiRetStatus);
//     CyFxAppErrorHandler(apiRetStatus);
//}

And now my questions are: why this happen and how can I fix it? Source code is attached, test app for Linux based on Qt & libusb 1.0.

Hi all,

Iam tring to communicate with the cypress device using libusb and the cypress wrapper. But the libusb_init() function always return -1(LIBUSB_ERROR_IO).

The android device is rooted. I can not use any of the libusb commands.

Cypress device -CYUSB3014-BZXC

Anybody help me to resolve this issue?

Regards,

Sarath

Hi,

I'm using CYUSB2KIT-003 with the aptina sensor for non-uvc application.

Everything works with 720p and 8bit pixel-depth.

Now I want to move on to our costume sensor.

I want to be able to change resolutions and the pixel-depth (from 8bit to 14, 16, up to 24) on runtime.

Is it possible?

If so;

1. How is it effect the GPIF bus

2. How should change the DMA configuration? (size? alignment?)

3. What else should I change to be able to do it?

( My reference code is from here - FX3 non-uvc camera streamer )

Omri.

Hi
We have connected CYUSB3013-BZXC to the PC through a USB5537B USB Hub controller

However, we are not able to see endpoints that have been assigned to USB3.
What could cause this?

The endpoints shown using the FX3-DK are:
- 0x01
- 0x82

- 0x81

- 0x83

The endpoints showing on the on board FX3 IC are:
- 0x01

I have attached the USB descriptor file here for reference and an image of the endpoints showing on the FX3-DK and not showing in our Main PCB

Thanks

Hi all,

As title, we are developing an application which can receive data from FPGA through sync_slave_FIFO to PC.

We  use BulkInEpt->XferData(*) to receive data. It's working fine under USB 2.0 but stuck under USB 3.0.

Below is some code snippet we use to receive data.

And if we uncomment "printf("0x%p\n", cur_write_pos);", it's working fine under USB 3.0.

What's the possible problem here?

//-----------------------------------------------------------------------

#define BULK_IN_BUFFER_SIZE 16 * 1024

BulkInEpt->TimeOut = 0xFFFFFFFF;

// resdiual_bytes_wanted is the #byte desired

while (1)

{

     if (resdiual_bytes_wanted > BULK_IN_BUFFER_SIZE)

          len_actual = len_wanted = BULK_IN_BUFFER_SIZE;

     else

          len_actual = len_wanted = resdiual_bytes_wanted;

     //printf("0x%p\n", cur_write_pos);

     status = BulkInEpt->XferData(cur_write_pos, len_actual);

     if (status)

     {

          cur_write_pos += len_actual;

          total_received += len_actual;

          resdiual_bytes_wanted -= len_actual;

          if (resdiual_bytes_wanted == 0 || len_wanted != len_actual)

          {

               final_status = true;

               break;

          }

     }

}

Thanks,

Wesley