Jetson nano mipi error

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
,
1

Hi,
our custom board using nano meet a question. During video streaming, there is a very low probability of encountering the following error.

Sep  6 14:44:31 nvidia kernel: [12394.486738] video4linux video0: frame start syncpt timeout!0
Sep  6 14:44:31 nvidia kernel: [12394.694741] video4linux video0: frame start syncpt timeout!0
Sep  6 14:44:31 nvidia kernel: [12394.906560] video4linux video0: frame start syncpt timeout!0
Sep  6 14:44:32 nvidia kernel: [12395.114645] video4linux video0: frame start syncpt timeout!0
Sep  6 14:44:32 nvidia kernel: [12395.322627] video4linux video0: frame start syncpt timeout!0
Sep  6 14:44:32 nvidia kernel: [12395.530986] video4linux video0: frame start syncpt timeout!0
Sep  6 14:44:32 nvidia kernel: [12395.738812] video4linux video0: frame start syncpt timeout!0
Sep  6 14:44:32 nvidia kernel: [12395.946734] video4linux video0: frame start syncpt timeout!0

And according to the same question in forums, I open the vi/csi debug when it happened, and I get this information.

[  768.159721] video4linux video0: frame start syncpt timeout!0
[  768.165806] video4linux video0: TEGRA_VI_CSI_ERROR_STATUS 0x00000000
[  768.165856] vi 54080000.vi: TEGRA_CSI_PIXEL_PARSER_STATUS 0x00000000
[  768.165878] vi 54080000.vi: TEGRA_CSI_CIL_STATUS 0x00000010
[  768.165897] vi 54080000.vi: TEGRA_CSI_CILX_STATUS 0x00040040
[  768.166002] vi 54080000.vi: cil_settingtime was autocalculated
[  768.166021] vi 54080000.vi: csi clock settle time: 13, cil settle time: 10
[  768.367680] video4linux video0: frame start syncpt timeout!0
[  768.373810] video4linux video0: TEGRA_VI_CSI_ERROR_STATUS 0x00000000
[  768.373873] vi 54080000.vi: TEGRA_CSI_PIXEL_PARSER_STATUS 0x00000000
[  768.373914] vi 54080000.vi: TEGRA_CSI_CIL_STATUS 0x00000012
[  768.373935] vi 54080000.vi: TEGRA_CSI_CILX_STATUS 0x00040040
[  768.374050] vi 54080000.vi: cil_settingtime was autocalculated
[  768.374074] vi 54080000.vi: csi clock settle time: 13, cil settle time: 10
[  768.576132] video4linux video0: frame start syncpt timeout!0
[  768.582209] video4linux video0: TEGRA_VI_CSI_ERROR_STATUS 0x00000000
[  768.582264] vi 54080000.vi: TEGRA_CSI_PIXEL_PARSER_STATUS 0x00000000
[  768.582287] vi 54080000.vi: TEGRA_CSI_CIL_STATUS 0x00000012
[  768.582307] vi 54080000.vi: TEGRA_CSI_CILX_STATUS 0x00040040
[  768.582403] vi 54080000.vi: cil_settingtime was autocalculated
[  768.582425] vi 54080000.vi: csi clock settle time: 13, cil settle time: 10

Is this related to hardware connect?

3

Looks like the MIPI timing cause the problem.
The error set when CIL-A detects LP state 01 or 10 followed by a
stop state (LP11) instead of transitioning

[  768.582307] vi 54080000.vi: TEGRA_CSI_CILX_STATUS 0x00040040
4

e checked the hardware and find that our nano module was bent by the custom heat dissipation module. And if we bend the nano module harder, this error will show in 100%, and we lose it, the mipi transfer come to normal.
So, Is this errno connected to our hardware fault?

6

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.