USB low-full-high speed peripherals Forum Discussions

Hi,

I've a problem  with a special laptop and my cy7c68013A device (driver version 3.4.7).
After booting the Laptop my device is running fine (I can communicate via  CyUSB.dll).
But after a random time (up to hours) this connection breaks and my device will no longer be enlisted in  
CyUSB.USBDeviceList(CyUSB.CyConst.DEVICES_CYUSB). It also is missing in the CyConsole app. But it is enlisted in the device manager!

After cycling the USB cable, the device reappears in my application as well as in the CyConsole app.

(Un)fortunatly this only happens with one single laptop. Any ideas what is going on? 

Best
Marcus

I met a following error on FX2LP-cy7c68013a. The project is designed as USB2.0 HS mode.

When Host sent NYET PID,  USB PHY has no any answer, sound card is closed.

However, FX2LP have no any interrupts with NYET, so how to deal with NYET?

The following photo is other UAC2.0 sound card. It answered ACK after NYET, so Host success to open sound card.

Hello,

I am using an electroencephalogram (EEG) that uses a CyUSB.sys driver. I am looking to get the incoming EEG data into MATLAB.  I am not a coder, I have taken codes from people posting questions here in the community. some of the code I have tried to work out from "Cypress CyUSB .NET DLL Programmer's Reference". Buf is a byte type I thought using a 'uint' should do the job. Please, someone, help me write these transfer codes, or if they can share theirs that has worked for them. I have no clue how to write .net code in Matlab.

Here is a link to my previous threads.

https://community.infineon.com/t5/USB-low-full-high-speed/Reading-from-device-USB-with-MATLAB-using-CyUSB-dll/m-p/339961

CODE:

try
   
    CyUSBdll = NET.addAssembly('C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\bin\CyUSB.dll');
catch error
   error.message
   if(isa(error,'NET.NetException'))
       e.ExceptionObject
   else
       disp('CyUSB.dll already loaded');
       return;
   end
end
%%USB Device Select
% Create a list of USB devices
usbDevices = CyUSB.USBDeviceList(CyUSB.CyConst.DEVICES_CYUSB);
device=usbDevices.Item(0);



CEP=device.ControlEndPt;
CEP.Target=CyUSB.CyConst.TGT_DEVICE;
 CEP.ReqType=CyUSB.CyConst.REQ_VENDOR;  
  CEP.Direction=CyUSB.CyConst.DIR_FROM_DEVICE;  
  CEP.ReqCode=0xB0;  
  CEP.Value=0;
  CEP.Index=0;
  len=64;
   buf=uint(len);

CEP.XferData(ref buf, ref len);

Error:

Last line is giving me this error

Hello,

I need to buy a compiler for the FX2LP18 USB microcontroller CY7C68053.  Can you confirm that the Keil PK51 is compatible with the CY7C68053?

Thank you

Best Regards,

Patrice

Hi,what is the maximum chunk size for BULK/Interrupt transfer from the host to the slave for both FX2/USB2 or FX3/USB3 using libusb or cypress driver?. read that it is controller dependent but they follow some standard guidelines. Is there a table?.Is USB2 max chunk is 4096 or 256K.?

We used this CY7C65630-56LFXA chip on our equipment. On each unit, we have two chips to control 6 SD cards. While on Win7 OS, we have no problems to harvest the data on all 6 SD cards. After switching to Win10 OS, we can only see one SD card each time. We searched online and tried many solutions, but none of them helped us. Is this a driver issue? Any suggestion how to solve this problem?

One engineer said we can replace this chip with a new one, which has the same pins and works on Win10 and Win11. We don't need to modify the design and other parts. Do you have a recommended chip? 

Thank you.  

My customer uses CY7C65213. They want to modify the INF files for the USB and COM drivers to show the company name.

In this situation, I would like to ask about the following :

1) Do you need a contract between the customer and Infineon?
2) Do you have a license agreement?
3) What is the contract format?
4) Can you provide a driver file which is Driver resell?

Thanks,
Tetsuo

I am Using CY7C65211-24LTXIT as USB to I2C bridge.I need to communicate with my I2C peripherals.

How do i proceed?