Opened 9 years ago
Closed 9 years ago
#245 closed defect (fixed)
With CMOSIS20, occasional frame corruption after rebooting of board
Reported by: | Suren A. Chilingaryan | Owned by: | Michele Caselle |
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Priority: | major | Milestone: | |
Component: | UFO Camera | Version: | |
Keywords: | Cc: | Matthias Balzer, Suren A. Chilingaryan, Michele Caselle, Matthias Vogelgesang |
Description
It seems there is a data corruption with frame.sh from time to time. Here just an example of the problematic data. Just see one line is repeated 2 times.
00000FB0 84 30 08 82 │ 08 7F E0 07 │ 20 08 81 00 │ 85 40 08 83
00000FC0 00 00 C0 80 │ 00 00 7D 00 │ 08 7F E0 07 │ 20 08 81 00
00000FD0 85 40 08 83 │ 08 80 F0 07 │ 30 08 82 10 │ 86 50 08 84
00000FE0 00 00 C0 80 │ 00 00 7E 00 │ 08 80 F0 07 │ 30 08 82 10
00000FF0 86 50 08 84 │ 08 81 00 08 │ 40 08 83 20 │ 87 60 08 85
00001000 86 50 08 84 │ 08 81 00 08 │ 40 08 83 20 │ 87 60 08 85
00001010 00 00 C0 80 │ 00 00 7F 00 │ 08 81 00 08 │ 40 08 83 20
00001020 87 60 08 85 │ 08 82 10 08 │ 50 08 84 30 │ 88 70 08 86
It does not happen always, but seems to happen always at the same
address. Also when it works, it seems there is a 16 bytes of padding before the header:
00000000 00 00 00 00 │ 00 00 00 00 │ 00 00 00 00 │ EF BE AD DE
Michele have suggested that "to switch off/on the board because some time the problem is that the firmware is not loaded correctly inside fpga. I don't know why but I had seen another time in my office". Indeed that helps. After I have restarted the board, I have not seen the problem any more, but at least we need to detect such corruption in the reset script and suggest the user to reboot the camera.
Attachments (0)
Change History (3)
comment:1 Changed 9 years ago by
Summary: | With CMOSIS, occasional frame corruption after rebooting of board → With CMOSIS20, occasional frame corruption after rebooting of board |
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comment:2 Changed 9 years ago by
comment:3 Changed 9 years ago by
Resolution: | → fixed |
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Status: | new → closed |
Seems fixed by Uros February 26, 2016
I do see the repeating rows on UFO5 camera now as well