USB Forum Discussions

 I am trying to debug code on the UVC example on the FX3 and I do not have access to any of the pins.  Is it possible to enumerate as another device to send debug information over USB?

Hi,

In the newest CYUSB301X datasheet 001-52136 Rev. L, the data transfer rate of GPIF II is upgraded to 375Mbps from 320Mbps.

Is there any change in chip or F/W ?

Regards,

HC.

Hi,

I am trying to install the driver for the FX3.0 on windows 7, 64-bit os, but I am unsuccessful. Based on the CyUSB.pdf, I have to use the "x64" folder, however, there is no such a folder under win7 (only x86). Is there any driver for win7 x64?

Thanks,

Nazila

Is it possible to use a pull-up or pull-down on a GPIO that is used by the GPIF?  If so, how do I go about implementing this?

I am using the GPIF as a 32-bit Slave FIFO with 2-bit addressing.  I would like to know if there is a way to determine if the GPIF interface goes "dry" or empty while waiting for data from the GPIF master.

Hi,

I am trying to get SPI boot to work on the DVK board. I already have setup the PMODE pins to 1F0, to boot from SPI and on fail boot via USB. The Jumpers 101,102,103,104 are all set to [2<->3].

When I try to upload a firmware .img file through the Cypress Control Center, I can see on the lines SCK and SSN that the upload is in progress, but the SPIMISO and SPIMOSI lines are all the time low. The same issue I can see after I press the reset button on the FX3 DVK board. FX3 is trying to load data from the SPI flash. The SSN and SCK is working fine but the MOSI and MISO also always low.

The resistors R246 and R252 are both not on the board as described in the ...

CYUSB3KIT-001 EZ-USB FX3 Development Kit Guide, Doc. #: 001-70237 Rev. *B

.. document.

I also have the same result when I upload the firmware through j-link debugger. Is there a hardware failure or are the GPIO pins defect?

thanks,

lumpi

Hello All,

If I load the default configuration file provided by Cypress (when I installed the drivers) from the directory C:\Cypress\USB\CY4605-HX2LP\1.0\Software\Config_file\2_port.iic for CY7C65620 into the CY7C65630 part, will it function correctly?

Since CY7C65620 is 2-port hub and when the same config file is loaded into a 4-port hub part, will only 2 ports be enabled?

If a config file has already been loaded into a device using Primer.exe, how can I load different config file into the same device. When I use Blaster.exe to do a Read From EEPROM, I get a message " Cannot Open Device" and I cannot erase the EEPROM also using the blaster application.

Thank you for the support.