USB low-full-high speed peripherals Forum Discussions

Dear Sir/Madam,

// CPUCS = 0x02; //12MHz operation , CPUCS[4:3] = 10.//  0000 0010   // Not Working

//CPUCS = 0x0A; //24MHz operation , CPUCS[4:3] = 10.//  0000 1010    // Not Working

  CPUCS = 0x12; //48MHz operation , CPUCS[4:3] = 10.//  0001 0010     // Working

  IFCONFIG = 0x43; // Slave FIFO mode of FX2LP 0100 0011

In my requirement  24MHZ Freq. from CLKOUT Pin

I want to use gc2385 via USB2.0, 800x600@15fps raw10 format. Now it can work in USB3.0 normally, but black screen in USB2.0. What is the highest resolution supported over USB 2.0?

I catched the data package, found the data size of first frame is much bigger than normal data. I am confused why it is normal over USB3.0.

abnormal: 36816x36+2812 = 1328188   

normal:  800x600x2 = 960000

What's the difference between using the Visual Studio's SerialPort dbgPort = new SerialPort(); dbgPort .Open(); and the Cypress CyOpen(); ?

(USB Serial Library API - DllImport("cyusbserial.dll",)

I am using C68013 chip.  I have downloaded the firmware from  AN61345 - Source code slave fifo  slave.iic.

using the newest driver  1.2.3.20 by 11/08/2017 on windows 7 x64.

the FPGA code is OK,  we can wirte and read data using NI-VISA driver and Labview program.

But,

I can write the data to C68013,  but can not read data from C68013.

Here is the VC++ code.  I also used the usb bus hound to look the data , there is also no data in to PC.

please help me, thank you very much!

// out endpoint  is ok

bool UsbTest::SendUsbData(unsigned char *wdata, long writeLength)

{

CCyUSBEndPoint *epBulkOut = m_usbDev->EndPointOf(2);

bool rst = epBulkOut->XferData(wdata, writeLength);

printf("send usb data ok\n");

return rst;

}

void UsbTest::RecvUsbData()

{

    long nCount = 0;

    long BytesXferred = 0;

    long outTransferred = 0;

bool m_bBulkLoopCompleted = false;

CCyUSBEndPoint *epBulkIn = m_usbDev->EndPointOf(0x86); // in传输   0x86

if (NULL == epBulkIn)

{

printf("epBulkIn is NULL\n");

return;

}

long totalTransferSize = epBulkIn->MaxPktSize * 16;

//epBulkIn->SetXferSize(10);

//epBulkIn->TimeOut = 1200;

unsigned char data[512] = { 0 };

OVERLAPPED inOvLap;

inOvLap.hEvent = CreateEvent(NULL, false, false, NULL);

        long readLength = 10;

UCHAR *inContext = epBulkIn->BeginDataXfer(data, readLength, &inOvLap);

if (epBulkIn->NtStatus || epBulkIn->UsbdStatus)

{

printf("BeginDataXfer Failed with (NT Status = 0x%X and USBD Status = 0x%X). Bailing out...\n", epBulkIn->NtStatus, epBulkIn->UsbdStatus);

}

        //////////Wait till the transfer completion..///////////////////////////

        if (!epBulkIn->WaitForXfer(&inOvLap, 150))

        {

/*

            epBulkIn->Abort();

if (epBulkIn->LastError == ERROR_IO_PENDING)

{

WaitForSingleObject(inOvLap.hEvent, 1500);

}*/

        }

        ////////////Read the trasnferred data from the device///////////////////////////////////////

bool success = epBulkIn->FinishDataXfer(data, readLength, &inOvLap, inContext);

printf("read usb data ok\n");

for (int idx = 0; idx < 64; ++idx)

{

printf(" 0x%x, ", data[idx]);

}

Sleep(300000);

}

I want to use CYUSB3014 to collect the temperature of DS18B20. If I have done this project, could you please send me the code for reference

Hi all,

we are currently struggling with USB connection instabilities with FX2 hispeed devices. We have been using them for long and they are generally quite stable. The present issues seem to (empirically) relate to electrically noisy environments. Symptoms vary a lot, from device not getting recognized to Control- or Bulk Xfers failing.

Now I stumbled over the Cypress Appnote 1036

"January 15, 2002

Document No. 001-17096 Rev. ** 1

USB Error Handling For Electrically Noisy Environments"

found at http://www.cypress.com/file/74566/download

It basically says that in such cases the device driver should do some more error handling.  However, it is very old.

Could anyone tell me to what extent the Cypress drivers (CYUSB, CYUSB3) are actually implementing this and maybe from what version?

Anyy other help regarding diagnostics or debug strategies for such issues would be much appreciated.

Thanks,

MIchael Wahl

Hi,

we are using this (CY7C65215)chip set for converting USB port to Spi interface.

(Desktop-PC)Linux is at the USB port and spi device at the other end.

our Questions on this are

(1)when we connect to Desktop pc how it is enemurated?

Ex:a)we will first see lsusb there we can get the vendor id and product id:

b)As we are keeping spi on other end it should be shown as a device node in /dev/ttyXXX

The above device node /dev/ttyXXX is not shown in our device when we connected to Desktop pc

Is there any driver installation required for this board in linux.

I have seen some cypress configuration in kernel configuration may i know what these configurations for

kmod-usb-serial-cypress-m8

This configuration is to be enabled or disabled ? for the above interface.

What are the drivers required in linux to enable and enumerate the device in /dev/ttyXXX?

Thanks in advance.

Thanks

Sujith

Hello there, I have been looking for an option to fix my broken controller (Saitek Pro Yoke) which uses the 56 pin version of CY7C64215 (CY7C64215-56LTXC)

I took a look over the components and tested most of them for damages and burns however everything seems normal which is proven by the states the device ends up when plugged in. When connected one of the following happens:

1. (1 in 1000 chance) the device loads and is working properly, all buttons and axis are working - which proves there are no short circuits on the IO

2. The device freezes right after plugged in even before the HID descriptors are sent [windows shows "Unknown USB Device (Device Descriptor Request Failed)"] the device has its own LCD display that is frozen as well

3. The device freezes right after sending the descriptors to windows - the device appears as functioning in windows, however no data are being transmitted and device is stuck.

A: My first question out of curiosity, has anyone experienced such a with freezing processor (maybe its just usb communication). The thing that bugs me most is that sometimes its work just fine.

B: Is there any possibility to debug it using PSoC designer or something else over USB or I2C? I dont have the original code, but I would be mainly interested to see if there is any debug output or way to access logs. -> They may prove that the processor is not stuck at all or maybe prove that NP = P

Thank you for all your replies

PS: I understand that my chances to repair it are very low, so I will probably end up building new HID interface anyway, so feel free to give any destructive ideas