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Hello
I am testing CX3 with a certain sensor (100fps).
MIPI Setting is below
we have three problem.
1. Broken image
Image is broken line by line.
2. CB Failure
==================
AplnStrt:SMState = 0x1
TimeDiff = 10105 ms FPS = 98
TimeDiff = 10005 ms FPS = 99
TimeDiff = 9996 ms FPS = 100
TimeDiff = 9996 ms FPS = 100
TimeDiff = 9996 ms FPS = 100
TimeDiff = 10006 ms FPS = 99
TimeDiff = 9996 ms FPS = 100
TimeDiff = 9996 ms FPS = 100
CB failure
AplnStop:SMState = 0x5
AppStart
AplnStrt:SMState = 0x1
TimeDiff = 10046 ms FPS = 99
CB failure
AplnStop:SMState = 0x5
AppStart
AplnStrt:SMState = 0x1
TimeDiff = 10045 ms FPS = 99
TimeDiff = 9995 ms FPS = 100
TimeDiff = 10005 ms FPS = 99
CB failure
AplnStop:SMState = 0x5
AppStart
AplnStrt:SMState = 0x1
TimeDiff = 10045 ms FPS = 99
TimeDiff = 9995 ms FPS = 100
================================
Sometimes "CB failure" was happened.
Can you advice me about the solution for fixing this problem?
Solved! Go to Solution.
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USB Superspeed Peripherals
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Hi,
With the current configuration vertical blanking is only 200us. It should be greater or around 400us.
Can you make following changes and test:
CSI clock: 400MHz(Make sure that transmitter is also configured for this value);
Hblanking: 160pixel; VBlanking: 50line
With this vertical blanking will be increased to 400us.
Regards,
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Hi,
With the current configuration vertical blanking is only 200us. It should be greater or around 400us.
Can you make following changes and test:
CSI clock: 400MHz(Make sure that transmitter is also configured for this value);
Hblanking: 160pixel; VBlanking: 50line
With this vertical blanking will be increased to 400us.
Regards,
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Thank you for your reply.
You mentioned CSI clock 400MHz.
But is CX3 spec 300MHz for 4ch MIPI?
On your datasheet, MIPI Max speed is 2.4Gbps.
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Hi,
But is CX3 spec 300MHz for 4ch MIPI?
On your datasheet, MIPI Max speed is 2.4Gbps.
Throughput calculation is according to Q/A No. 6 in this KBA . This takes blanking also into consideration. So, with the modification I suggested throughput will not exceed 2.4Gbps.
Please try the same.
Regards,