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| − | == Get Prepared ==
| + | Move to https://elinux.org/Jetson/l4t/Camera_BringUp |
| − | * Please read through "Camera Development" section in https://developer.nvidia.com/embedded/dlc/l4t-documentation-28-1
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| − | == FAQ ==
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| − | === Tips for debugging ===
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| − | * if you saw below error message
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| − | tegra-vi4 15700000.vi: PXL_SOF syncpt timeout! err = -11
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| − | | |
| − | * please check below 4 items in your sensor device tree, these should follow the settings in your sensor datasheet
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| − | mode0 {
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| − | cil_settletime = "0";
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| − | active_w = "1920";
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| − | active_h = "1080";
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| − | embedded_metadata_height = "1";
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| − | | |
| − | * if you saw below error message
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| − | video4linux video0: MW_ACK_DONE syncpoint time out!
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| − | | |
| − | * please check below
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| − | please review the configuration of "line_length" in sensor driver
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| − | try to increase the delay between video lines data send via CSI
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| − | review the sensor datasheet to check the settings of FPS range
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| − | | |
| − | * if you saw below message it could be the sensor output embedded data line but DT didn't declare embedded_metadata_height or it value is 0
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| − | arm-smmu 12000000.iommu: Unhandled context fault: iova=0x00000000, fsynr=0x200011, cb=19, sid=4(0x4 - VI), pgd=0, pud=0, pmd=0, pte=0
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| − | <br />
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| − | === Steps to enable more debug messages ===
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| − | * To enable trace for more information
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| − | echo 1 > /sys/kernel/debug/tracing/tracing_on
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| − | echo 30720 > /sys/kernel/debug/tracing/buffer_size_kb
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| − | echo 1 > /sys/kernel/debug/tracing/events/tegra_rtcpu/enable
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| − | echo 1 > /sys/kernel/debug/tracing/events/freertos/enable
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| − | echo 2 > /sys/kernel/debug/camrtc/log-level
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| − | echo > /sys/kernel/debug/tracing/trace
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| − | cat /sys/kernel/debug/tracing/trace
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| − | | |
| − | * To enable logs from user-space for more details
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| − | sudo su
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| − | kill the process of argus_daemon or nvcamera-daemon
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| − | export enableCamPclLogs=1
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| − | export enableCamScfLogs=1
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| − | /usr/sbin/argus_daemon option for argus
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| − | /usr/sbin/nvcamera-daemon option for gst-launch
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| − |
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| − | launch camera from another console
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