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Hello,
I have built a UVC project and observed with an oscilloscope that the sensor can output the correct clock and data signals, but I can't receive any image data on the PC side with a USB hount.
I just implemented UART debugging and when I download the .img file to my hardware, I can observe that the UART can print the configuration information of the sensor, but the video streaming information and the MIPI error information I want to observe will not be printed.
I would like to know why this is happening, it seems to be gone after the sensor configuration is done. How can I find out where the error occurred?
My CX3 does not have the MIPI output interface for signal analysis, so I can only observe the output of the sensor.
Best Regards,
Yaqi
Solved! Go to Solution.
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USB Superspeed Peripherals
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Hi Yaqi,
From the above snippets it looks like HMAX and VMAX can be used to vary HBlanking(LineBlanking) and VBlanking(or FrameBlanking) time.
Regards,
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Hi Yaqi,
1. Can you please enable the macro CX3_ERROR_THREAD_ENABLE and build your firmware
2. Probe HSYNC_test, VSYNC_test and PCLK_test and check if you are seeing expected signals.
Regards,
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Hi Hemanth,
1. Can you please enable the macro CX3_ERROR_THREAD_ENABLE and build your firmware
How should I enable macros, I don't quite understand.
2. Probe HSYNC_test, VSYNC_test and PCLK_test and check if you are seeing expected signals.
Regards,
HSYNC_test, VSYNC_test and PCLK_test are three signals that are not connected on my board.
Best Regards,
Yaqi
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Hi Yaqi,
I wanted to check if there are any MIPI errors.
From the code snippet you shared in your first post, I can see that mipi error debugprint is present. Can you let me know if you see any errors?
Regards,
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Hi Hemanth,
I think it may be that my previous configuration is not yet correct causing the MIPI to not parse the data output because I am not receiving any image data with Bus Hound. I'm still trying to change the configuration information
Best Regards,
Yaqi
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Hi Hemanth,
Can you help me to identify these three parameters, as they are not in my sensor datasheet.
My sensor configuration parameters
datasheet Readout mode NO 6
The datasheet only gives this information.
Best Regards,
Yaqi
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And this
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Hi Yaqi,
From the above snippets it looks like HMAX and VMAX can be used to vary HBlanking(LineBlanking) and VBlanking(or FrameBlanking) time.
Regards,