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Mv series camera appnotes 4 jetson (view source)
Revision as of 16:40, 18 May 2022
, 16:40, 18 May 2022→Connection with Xavier NX
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==== Connection with Xavier NX ====
==== Connection using ADP-MV1 ====
The Nano Series NX Series is connected in the same way.
The Nano Series and NX Series are connected in this way.
[[File:MV camera and Xavier NX connection.jpg|alt=MV camera and Xavier NX connection|center|thumb|800x800px|MV camera and Xavier NX connection]]
[[File:MV camera and Xavier NX connection.jpg|alt=MV camera and Xavier NX connection|center|thumb|800x800px|MV camera and Xavier NX connection]]
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==== Connection using ADP-N4 ====
The AGX Series and TX2 Devkit are connected in this way.
TODO
=== Upgrade Jetson system ===
This section describes how to upgrade the Jetson system to support MV camera module. For OS update method, please refer to [[VEYE CS Camera for Jetson TX2#Upgrade Jetson Nano.2C Jetson TX2.2C TX2 NX.2CAGX Xavier and Xavier NX system|Update Jetson OS]].
Specially, for MV series camera, besides adding the camera driver in linux system, we also add a kernel patch - veye_mv_l4t_32.7.1.patch.
This patch has two features：
# Added support for both Y10 and Y12 data formats for Mono cameras.
# Added support for trigger mode.
==== Description of raw data image format ====
On TX2 and XAVIER, 10 bit depth and 12 bit depth raw data is stored in memory in a format that is not compliant with the V4L2 standard. We have extended the definition in the linux kernel to support this case.
TY10, TY12, XY10 and XY12 are the new types we have added.
=====Nano=====
{| class="wikitable"
!Depth
!Bit order
!FourCC
!Enumerator
|-
|8
|B7 B6 B5 B4 B3 B2 B1 B0
|GREY
|V4L2_PIX_FMT_GREY
|-
|10
|0 0 0 0 0 0 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
|'Y10 '
|V4L2_PIX_FMT_Y10
|-
|12
|0 0 0 0 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
|'Y12 '
|V4L2_PIX_FMT_Y12
|}
=====TX2=====
{| class="wikitable"
!Depth
!Bit order (X is undefined)
!FourCC
!Enumerator
|-
|8
|B7 B6 B5 B4 B3 B2 B1 B0
|GREY
|V4L2_PIX_FMT_GREY
|-
|10
|0 0 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 X X X X
|TY10
|V4L2_PIX_FMT_TX2_Y10
|-
|12
|0 0 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 X X
|TY12
|V4L2_PIX_FMT_TX2_Y12
|}
=====XAVIER=====
{| class="wikitable"
!Depth
!Bit order (X is undefined)
!FourCC
!Enumerator
|-
|8
|B7 B6 B5 B4 B3 B2 B1 B0
|GREY
|V4L2_PIX_FMT_GREY
|-
|10
|0 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 X X X X X
|XY10
|V4L2_PIX_FMT_XAVIER_Y10
|-
|12
|0 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 X X X
|XY12
|V4L2_PIX_FMT_XAVIER_Y12
|}
Also, we provide tool software in order to convert these special data formats to standard formats: https://github.com/veyeimaging/pixel_layer_convert.
===== Support for trigger mode =====
The default driver for Jetson systems only supports video streaming mode. In its VI driver, the data reception function has a timeout mechanism. We have added a settable vi_time_out_disable option to dynamically turn this timeout mechanism on and off.
Refer to the following application example for specific applications.
=== Check system status ===