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Hi,
I want to transfer video data from FPGA to PC by using custom board FX3- CYUSB2014. Output data from FPGA : 640x480, 30 fps, 90 MHz clock, YUY2 format, 8 bit data bus connected with 2.0 USB cable to host PC. I edited AN75779 firmware but without success. I use VLC, USBVideoClassBulk works fine on my hardware. Is there anything am missing to change?
Tom
In cyfxuvcdsr.c file
/* Standard High Speed Configuration Descriptor */
/* Class specific Uncompressed VS Frame descriptor */
0x1E, /* Descriptor size */
0x24, /* Descriptor type*/
0x05, /* Subtype: uncompressed frame I/F */
0x01, /* Frame Descriptor Index */
0x01, /* Still image capture method 1 supported */
0x80,0x02, //z /* Width in pixel: 640 VGA */
0xE0,0x01, //z /* Height in pixel 480 VGA */
0x00,0x00,0xCA,0x08, //z /* Min bit rate bits/s. 640x480x30x16
0x00,0x00,0xCA,0x08, //z /* Max bit rate bits/s. Not specified, taken from MJPEG */
0x00,0x60,0x09,0x00, //z /* Maximum video or still frame size in bytes(Deprecated) */
0x15,0x16,0x05,0x00, //z /* Default Frame Interval 30 fps*/
0x01, /* Frame interval(Frame Rate) types: Only one frame interval supported */
in uvc.c file
uint8_t glProbeCtrl20[CY_FX_UVC_MAX_PROBE_SETTING] = {
0x00, 0x00, /* bmHint : no hit */
0x01, /* Use 1st Video format index */
0x01, /* Use 1st Video frame index */
0x15,0x16,0x05,0x00, //z /* Desired frame interval in the unit of 100ns: 30 fps */
0x00, 0x00, /* Key frame rate in key frame/video frame units: only applicable
to video streaming with adjustable compression parameters */
0x00, 0x00, /* PFrame rate in PFrame / key frame units: only applicable to
video streaming with adjustable compression parameters */
0x00, 0x00, /* Compression quality control: only applicable to video streaming
with adjustable compression parameters */
0x00, 0x00, /* Window size for average bit rate: only applicable to video
streaming with adjustable compression parameters */
0x00, 0x00, /* Internal video streaming i/f latency in ms */
0x00,0x60,0x09,0x00, //z /* Max video frame size in bytes */
0x00, 0x40, 0x00, 0x00, /* No. of bytes device can rx in single payload = 16 KB */
0x00,0x00,0x00,0x96, /* Max video frame size in bytes */
/* Configure the IO matrix for the device. */
io_cfg.isDQ32Bit = CyFalse;
Solved! Go to Solution.
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USB Superspeed Peripherals
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Problem solved, i had problem on FPGA side. Thanks for your help.
Tom