Difference between revisions of "Mv series camera appnotes 4 jetson"

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<br />
 
<br />
  
−
==== 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]]
 
<br />
 
<br />
 +
==== 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 ===

Revision as of 16:40, 18 May 2022

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1 Overview

The MV series cameras are cameras introduced for AI applications in the industrial field. It uses the MIPI CSI-2 interface, which is especially suitable for embedded computing platforms.

It features rich data formats and trigger characteristics, extremely low latency, extremely high bandwidth and reliable stability.

This article describes how to use the MV series camera on the NVIDIA Jetson platform.

1.1 Camera Module List

Series Model Status
MV series MV-MIPI-IMX178M Done

1.2 Jetson Board List

Jetson Board Status
Nano A02 Done
Nano B01 Done
Nano 2GB Done
TX2 NX Done
XAVIER NX Done
TX2 Devkit Coming soon
AGX Xavier Coming soon
Orin Series Coming soon

1.3 Supported L4T versions

  • Jetpack4.6.1,L4T r32.7.1
1.3.1 How to check the current L4T version

On Jetson board

cat /etc/nv_tegra_release

If it shows:

# R32 (release), REVISION: 7.1......

It means L4t Version is 32.7.1, and the Jetpack version is 4.6.1.

2 Hardware Setup

MV series cameras require an adapter board to access the Jetson platform. The following table shows the support status.

Jetson Board adapter board camera number Power
Nano A02 ADP-MV1 1 5V DC（Required）
Nano B01 ADP-MV1 1 5V DC（Required）
Nano 2GB ADP-MV1 2 5V DC（Required）
TX2 NX ADP-MV1 2 5V DC（Required）
XAVIER NX ADP-MV1 2 5V DC（Required）
TX2 Devkit ADP-N4 6 12V DC (Optional)
AGX Xavier ADP-N4 6 12V DC (Optional)
Orin series TODO TODO TODO

2.1 Connection of MV-MIPI-IMX178M and ADP-MV1

The two are connected using 0.5 mm pitch*30P FFC cable with opposite direction. The cable must be inserted with the silver contacts facing outside.

ADP-MV1 to MV-MIPI-X
ADP-MV1 to MV-MIPI-X


2.2 Connection using ADP-MV1 (using Xavier NX as an example)

2.2.1 Power supply

The ADP-MV1 requires a separate 5V power supply and can be powered directly from the Jetson board using a Dupont cable.

ADP-MV1 power supply
ADP-MV1 power supply


2.3 Connection using ADP-MV1

The Nano Series and NX Series are connected in this way.

MV camera and Xavier NX connection
MV camera and Xavier NX connection


2.4 Connection using ADP-N4

The AGX Series and TX2 Devkit are connected in this way.

TODO

3 Upgrade Jetson system

This section describes how to upgrade the Jetson system to support MV camera module. For OS update method, please refer to 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：

  1. Added support for both Y10 and Y12 data formats for Mono cameras.
  2. Added support for trigger mode.

3.1 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.

3.1.1 Nano
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
3.1.2 TX2
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
3.1.3 XAVIER
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.

3.1.4 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.

4 Check system status

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