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Hello everyone,
I'm trying to stream video from an Aptina-Camera with UVC to a PC. Using the FX3-Board and the USBVideoClass-Example (for RAW - Aptina MT9M114) I get no picture / video on PC.
Here my setup:
- Camera 10bit RAW or YUV422 (both doesn't work) with I2C connection to another device - so there is no need for sensor.c/sensor.h
- Camera 1280 x 960 30FPS
- AN75779 / FX3_RAWData_Cypress Driver and Descriptors.zip example
changes made:
uvc.c
uint8_t glProbeCtrl[CY_FX_UVC_MAX_PROBE_SETTING]
uint8_t glProbeCtrl20[CY_FX_UVC_MAX_PROBE_SETTING]
cyfxuvcdscr.c
/* Class specific Uncompressed VS Frame descriptor */
/* Class specific Uncompressed VS format descriptor */
-> set resolution, FPS and bitrate ...
I got often
Error in CyU3PDmaMultiChannelCommitBuffer: code 71
and the I made modification like in
Then I got debug prints like ...
UVC: Completed 106 frames and 135 buffers
UVC: Completed 106 frames and 147 buffers
...
But no video at all
Are there any other changes I must made to get the cam working?
Thank You,
Regards Norman
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Hi Norman,
If you are frequently getting error code:71, could you please implement the modifications mentioned in the following Knowledge Base Article:
Regards,
Raghuram
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Hi Raghuram,
thank you for your answer. In my first post I didn't mention that I already made this modifications. It doesn't work too....
Regards, Norman
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Hi Norman,
Could you share the project with the modifications you have made.
Are you getting the debug print 'SUSPEND encountered...' ?
Which is the UVC Host Application you are using?
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Hi Norman
if you can get debug message
UVC: Completed 106 frames and 135 buffers
with frame and buffer valid, in my case , if no image shows up
it most likely the width or height or frame size or frame rate incorrect