USB superspeed peripherals Forum Discussions

Hi

I want to use RAW 8bit data output by RAW 10bit image sensor.

I want to get low 8 bit data only for it.

How can i do it?

Hello,

Is there any requirement for the SS multiplexer control signal on the FX3S. I am going to use the GPIO_38(J1).

I have two uSDcards on VIO2 and 3 respectively, they need 3.3V, so GPIO is in VIO2, that would be ok, also in my routing.

Thanks in advance...

now I have a project, FPGA can write data to FX3(P to U), and I want to add a U to P channel based on this project. I suppose the PC can send data to the USB, and send it to the buffer of FX3，when the buffer is full，flagc will be pulled down and FPGA  will read the data from the buffer. In other word, it is a stream_out mode which is in the FX3 SDK , but i want it realize in my project(boss gives it me). According to the streamOUT source code, I choose the AUTO DMA mode and have added the state and flagc

and flagd pin  in the GPIF designer. I have configure the flagc as the dedicate thread 3  and flagd  water mark is 3. Endpoint and DMA channel configuration have be done But somehow when the buffer is full flagc is not be pulled down.I have attached my project.SrinathS_16​

I will use two fx3 usb to communication with my devices. When I use the friendlyname to get the usb name. I only get one usb name, and I only control the newest opened usb. how to control two fx3 usb simultaneously and respectively?

CCyUSBDevice*   m_pCyUSBDevice;
 
for (UCHAR i = 0; i < m_pCyUSBDevice->DeviceCount(); ++i){
 
        bool isOpen = m_pCyUSBDevice->Open(i);
        if (isOpen){
            QString friendly_name = m_pCyUSBDevice->FriendlyName;
 }
}

I implemented stream_in with CyAPI.lib. After calling WaitForXfer(), BulkInEndPtEndPt->LastError is equal to ERROR_IO_PENDING(997). I don't quite understand why this is.

TEST_METHOD(Test_StreamIn)
  {
   CCyUSBDevice  *USBDevice = new CCyUSBDevice(NULL);
   OVERLAPPED  inOvLap;
   inOvLap.hEvent = CreateEvent(NULL, false, false, L"CYUSB_IN");
   unsigned char inBuf[128];
   ZeroMemory(inBuf, 128);
   unsigned char buffer[128];
   LONG  length = 128;

   UCHAR  *inContext = USBDevice->BulkInEndPt->BeginDataXfer(inBuf, length, &inOvLap);
   USBDevice->BulkInEndPt->WaitForXfer(&inOvLap, 100);
   USBDevice->BulkInEndPt->FinishDataXfer(inBuf, length, &inOvLap, inContext);
   CloseHandle(inOvLap.hEvent);
  }

We have a FX3 application that needs 120Hz pulses with varying duty cycles. For example, from 11/12 duty and 6/12 duty as the plot shown below. We may have other varying duty pulse train requirement like, 90%, 75%, 50%, 25%, 10%.  Is it feasible for FX3?

Thank you in advance.

hi
     CyU3PI2cPreamble_t works well if the i2c address is only 2-4 bytes width. but if the register address width is longer than 8 bytes, it is hard to use this structure.
    who know how configure CyU3PI2cPreamble_t if the register length longer then 8 bytes.
for example, if i want to read register address 0x123456789acbde1234,  the value with is 10byes, how to configure?

i tried to separate write/read sequence using following two functions. but cannot work seems due to clock-stretching. who can help here?

CyU3PReturnStatus_t

GW5200_SensorReadNB(uint8_t SlaveAddr, uint8_t *buf, int n)

{

    CyU3PReturnStatus_t apiRetStatus=CY_U3P_SUCCESS;

    CyU3PI2cPreamble_t preamble;

    int i = 0;

  preamble.buffer[0] = SlaveAddr;//0x21;

  preamble.length = 1;

  preamble.ctrlMask = 0x0000;//After the second byte,need to restart the I2C communication

  apiRetStatus = CyU3PI2cReceiveBytes (&preamble, buf, n,0);

  if (apiRetStatus == CY_U3P_SUCCESS)

  {

  IMX390_GW_delay(800);

  }

  else

  CyU3PDebugPrint (4, "GW5200_SensorReadNB failed Error Code = %d\n",apiRetStatus);

#if 1

  CyU3PDebugPrint (4, "read:");

  for(i = 0; i < n; i++)

  {

  CyU3PDebugPrint (4, "0x%x ", buf);

  }

  CyU3PDebugPrint (4, "\r\n");

#endif

  return apiRetStatus;

}

CyU3PReturnStatus_t

GW5200_SensorWriteNB(uint8_t SlaveAddr,uint16_t count, uint8_t *buf)

{

    CyU3PReturnStatus_t apiRetStatus=CY_U3P_SUCCESS;

    CyU3PI2cPreamble_t preamble;

    int i = 0;

  preamble.buffer[0] = SlaveAddr; /* Slave address: Write operation */

  preamble.length = 1;

  preamble.ctrlMask = 0x0000;

  apiRetStatus = CyU3PI2cTransmitBytes (&preamble, buf, count, 0);

  if (apiRetStatus == CY_U3P_SUCCESS)

  {

  IMX390_GW_delay(800); /* known issue for SDK I2C */

  }

  else

  {

  CyU3PDebugPrint (4, "GW5200_SensorWriteNB error!\r\n");

  }

#if 0

  CyU3PDebugPrint (4, "write:");

  for(i = 0; i < count; i++)

  {

  CyU3PDebugPrint (4, "0x%x ", buf);

  }

  CyU3PDebugPrint (4, "\r\n");

#endif

  return apiRetStatus;

}

thanks
xingxing