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I recently purchased EZ-USB FX3 CYUSB3KIT-001 development kit. I use Microsoft's routine USBSamp as a USB driver, and i have written an applications. Now i use Cypress's firmware USBBulkSourceSink to test the application and driver, but communication rates up to only 4M/s or so .This rate is far from the high-speed（60M/s）.Then I noticed some tips of firmware：
"The default example is not optimized for performance in USB 3.0, in order to get better performance the following changes has to be done.
1. Have only 1 endpoint (IN or OUT) .This avoids any USB host bandwidth issues.
2. Update the "Max. no. of packets in a Burst" field (1 to 15) in the "Super Speed Endpoint Companion Descriptor" in cyfxbulkdscr.c.
3. In cyfxbulksrcsink.c change the dmaCfg.size by factor of ("Max. no. of packets in a Burst" field in the "Super Speed Endpoint Companion Descriptor" + 1) for USB 3.0. The performance will be better if this is twice the size of the burst ie. (2 * ("Max. no. of packets in a Burst" field in the "Super Speed Endpoint Companion Descriptor" + 1)). When making these changes, make sure that there is enough memory available for buffering.
4. In cyfxbulksrcsink.c change epCfg.burstLen to "Max. no. of packets in a Burst" field in the "Super Speed Endpoint Companion Descriptor" + 1, before calling CyU3PSetEpConfig."
So I try this method，but i am failed! Downloading the program is unsuccessful！ I do not know why!
For my example : Max. No. Of packets in a Burst value is set to 15,
dmaCfg.size value is set to 32,
epCfg.burstLen value is set to 16.
Where is wrong in this example ? How should i set up the firmware to improve communication rate? Thank you !