maybe you should change your VID/PID in your driver file
I don't think it is the PID/VID problem.
1. the device never renumerates in device manager.
2.I have macthed the PID/VID with driver.
i have the same problem,when i download the frimware,the FX3 DVK BOARD can't renum.Can anyone help me?
Have you fix your problem? How did you fix it?
When you say build the firmware, which firmware project (obtained form which SDK version) and which library are you using for building? Does it appear as unkoown devcie or some other device in Device manager or it does not appear at all? Is it possible for capturing a USB trace?
From your description, I assume that you are using FX3 SDK 1.1. Please update to FX3 SDK 1.3 and check if you are experiencing the same.
The latest SDK can be found in the following link: http://www.cypress.com/?rID=57990
Attached is the bulkloop example code which is build using FX3 SDK 1.3. You can try downloading the firmware to the FX3 and check if it enumerates.
Hi, my device can no re-enumerate with the SDK1.3. After I downloading the example *.img to ram, including the attached BulkLoopAuto.img and CyBootProgrammer.img, it can not re-enumerate. But at the left concer of Control Center, it shows programming succeed. What's wrong?
Do you have the problem? I have the same wrong.
I had same problems,
but when I began to connect
Cypress FX3 DEVBOARD not to USB 3.0 on matherboard,
PCIe USB 3.0 2-Port U-720 (1 x Ext. + 1 x Int. Ports) Card
(Renesas Electronics USB 3.0 Root Hub),
that problems disappeared.
I have the same problem when connect BeUSB 3.0 to hub D-Link DUB-1340 or to computer with chipset Intel® 7 Series/C216.
With the hub all works if I use High Speed ( CyU3PConnectState (CyTrue, CyFalse) ). But it still not works with the chipset.
And all works fine with STLab U-511 add card .
All of the problems with re-enumeration/booting on the DVK have been issues with cables. Two of the Cypress supplied cables have not worked reliably on all combinations of hardware. I've had so much trouble with cabling that I finally started using my shorter USB 3.0 cable that came with my Western Digital My Passport hard drive. That cable has worked in every combination of host/peripheral that I have tried so far.