1 # Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
3 @page dwx_camera_gmsl_raw_sample RAW GMSL Camera Capture Sample
5 The RAW GMSL Camera Capture sample uses the GMSL camera interface available on
6 NVIDIA DRIVE<sup>™</sup> PX 2 platforms. The sample creates a file for the RAW
7 data from the first camera on the selected CSI-port. The file is written to the disk.
9 
13 For information about the physical location of the ports on the NVIDIA DRIVE
14 platform, see "Camera Setup under Configuration and Setup" in _NVIDIA DRIVE 5.0 Linux
15 PDK Development Guide_.
19 A camera must be connected to one of the NVIDIA DRIVE PX 2 CSI-ports.
21 The following options are supported:
22 - `--csi-port={ab,cd,ef}` specifies a CSI port. Default value: `ab`.
23 - `--camera-type` specifies the type of the camera.
24 Supported cameras are`ar0231-rccb` (`ar0231-rccb-ss3322`, `ar0231-rccb-ss3323`), `ar0231-rccb-bae` and `ar0231-rccb-ssc`.
25 - `--write-file` specifies the output file. If `write-file` is not provided, no file is written out on disk.
27 If the camera type is `ar0231-rccb-ssc` and the `csi-port` is the default ab, enter:
29 ./sample_camera_gmsl_raw --write-file <filename>
31 Otherwise, enter a command such as:
33 ./sample_camera_gmsl_raw --csi-port=cd --camera-type=ar0231-rccb --write-file <filename>
35 If camera capture is running, i.e., no error occurred, the sample prints on the
38 First 16 bytes from top data lines:
39 80 2 82 2a 0 8 42 29 0 0 81 16 0 0 81 16
41 First 16 bytes from bottom data lines:
42 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0
44 Exposure Time (s): 0.000658364
46 You can specify a demosaicing option with the `--interpolationDemosaic` option.
47 The following values are supported:
48 - 0 : half camera resolution is used.
49 - > 0 : full camera resolution with interpolation is used.
50 The argument `serializer-type` must be `uncompressed`.
52 Press S to take a 16 bit png snapshot of the current RAW frame.
56 #### Master Mode Prerequisites
58 Before running camera applications only on Tegra B, you must disable FRSYNC and
59 the forward/reverse control channel of the Tegra A aggregator. For related information,
60 see *Camera Setup (P2379)* in *NVIDIA DRIVE Linux 5.0 PDK Development Guide*.
61 This guide explains how to:
62 * Turn on the MAX9286 aggregator.
63 * Disable FRSYNC and the forward/reverse control channel on MAX9286 aggregator
64 to avoid any interference with MAX96799.
68 After you have addressed the prerequisites (above) and have rebooted Tegra B,
69 you can run camera applications on Tegra B.
71 @note Running camera applications on Tegra A re-enables the forward/reverse control channel and FRSYNC from MAX9286
72 and the procecedure of activating camera for Tegra B need to be repeated.
75 Cameras can be captured on Tegra B in slave mode, i.e. when they are already captured
76 by an application on Tegra A. In such case it is possible to specify the "slave" flag, which can
77 be 0 or 1. If slave is 1, then Tegra B will not be able to run cameras
78 autonomously but it requires that camera to run at the same time from Tegra A.
79 If slave is false, then Tegra B can control any camera that is not currently
80 being used by Tegra A.
