Hi

We made custom board with CYUSB3065-BZXC controller and used "W25Q80EW" flash for SPI boot support. Our board is functional at 1.8V I/O level and we are not able to boot over SPI flash now.

For reference we checked the same in Cypress EZ-USB CX3 MIPI CSI-2 to SuperSpeed USB controller RDK with hardware modification for 1.8V I/O and External SPI flash(W25Q80EW). But we are facing same issue in RDK also. However the SPI boot works fine at 3.3V level.

Any body has faced issue in CX3 SPI booting at 1.8V level ?

Kindly help.

Regards

Pandiyarajan

hello,everyone,

    I use fpga to generate 8 bit random data,and I want to use FX3 to transfer the data to the computer,and I changed the example "continuous_read.cydsn" to 8 bit ,clock to "external",it was provided by fpga,and then when I use the "streamer" it always shows increasing failures and no success?why? Can I use the cyfxgpiftousb?

I was planning to make a composite device for simultaneously supporting image acquisition and virtual serial port. But, adding CDC_DEBUG part although,the device could only work at UVC mode.I found that the Virtual COM enumeration was unsuccessful. （Modified code has been attached）

If you have the experience like this case, please help to analyze.

    I  mask the I2C setting and init in the An75779 demo code.  compile , download in the Fx3 board. find  the urb is sent（attch map）by hushound tool 。Can  you give me some suggestion about the URB.

    Rmark： my  solution :two cmos sensor + fpga + cyusb3014. FPGA simulated the cmos sensor data in the test. So I

           don't use the I2C 。in fact ,the cmos sensor setting  is done  by  FPGA,no  FX3。

Can the FX3 handle a UVC set-up for an 8-bit camera interface and at the same time have a FIFO implementation to download/upload 16-bit configuration data or control data? Also, to add further workload, have a UART interface as well...?

How would the PC end cope with the FIFO, would it require a dedicated user application or is there a Windows style application?

Shaun

 I've got an image sensor connected to an FX3 device using the AN75779 application note.  I've modified the firmware to transfer RAW data instead of UVC.  I have an application to receive the data in RAW form.  My trouble is the DMA callback is only happening 9 times, and it's very consistent.  Never more or less. Should be about 23 times.  I'm confident my Image sensor is working correctly and setup correctly.  After the 9 callbacks it will never go back unless I restart the firmware again from the beginning.  Currently, I'm only trying to capture one frame, for testing and have a breakpoint in the GPIF interrupt callback (triggered by !FV in state machine) then check how many callbacks occurred by having a variable increment in the callback. Is there something I need to do to reset DMA?  Could it be that there is an error on the PC side and the FX3 is waiting for something from the PC the I'm missing?  

As another note I'm using bulk transfer.

Thanks a ton for any help that can be provided!

Brandon

Hello everybody

I'm trying to combine the two example projects "USBBulkLoopAuto" and "MouseDemo" but I don't get it running. It is the first time I try to do something with USB and probably struggle with some basic problems.

What I did so far:

    
• Copied the "USBBulkLoopAuto" Project and renamed it.
    
• Changed the USB descriptor file where I added the HID (not sure if I did this the right way, file is in the appendix)
    
• Changed the file names in the Makefile
    
• Added a single .c and .h file for each interface (cyfx_thread_bulkloop.c, cyfx_thread_bulkloop.h, cyfx_thread_hid.c and cyfx_thread_hid.h)
    
• made a thread for the bulk loop in "cyfx_thread_bulkloop.c" and a thread for the HID in "cyfx_thread_hid.c" and added the code from the examples.
    
• Created a main.c file where I put everything in it where I think is shared by both interfaces.
    
• Merged the functions (probably merged wrong)     
        
  • CyFxApplicationDefine calles both threads
        
  • CyFxApplnInit is placed in the main file to set the enumeration descriptor for both interfaces
        
  • CyFxApplnLPMRqtCB, CyFxApplnUSBEventCB, CyFxApplnUSBSetupCB are placed in the main.c but not sure what I have to do actually to combine the functions for both interfaces (To be honest, I don't really understand these functions).
       
   

I'm able to build the project without errors, but when I load it on the FX3, I get no device in the Cypress Control Center.

Could someone please help me to get this running or is there already an example with two combined interfaces? I searched but didn't find anything which gave me enough information.

Thank for every hint to get closer to a working solution. 

Kind regards,

Dominic

Hi, 

I'm trying to test the USB3 technology with the Superspeed Explorer Kit (CYUSB3KIT-003), the  FMC interconnect board(CYUSB3ACC-005) and the xilinx kintex developement kit KC705.

I was able to run the the default streaming example  in stand alone (only the CYUSBkit) without issue.

I was also able to to run the AN65974/SF_loopback.img example in the FX3 and my code in the xilinx FPGA.

However, if i try any other file at the same location the test failed (BULK IN transfer failed with Error Code:997)

I would like to know why?

I also did try to recompile myself the FX3 FW.

I builded in release the slfifosync example found there "C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\firmware\slavefifo_examples"

The Stream In work in Control center but the throughtput in Streamer.exe is very slow(32000KB/s) or have error depending on the packets and Xfer configuration.

When i do recompile the same code in 32 bit mode CY_FX_SLFIFO_GPIF_16_32BIT_CONF_SELECT(1) and program the FX3 in RAM after a reset with the KC705 at off, the device won't enumerate in control center. So there is no way I can test a streamer program in my FPGA with a 32 bits interface.

Anyone know how to fix those issues?

Thanks

JeanAlexis

hello, I am new to usb_fx3,now I have an adc control by spi, so I wonder if usb_fx3 can finish the job?In other words,if I can use spi of fx3 to control the adc? If it can ,how to do ? which firmware I should read?

thanks!