VEYE-MIPI-290/327 i2c/

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VEYE-MIPI-290/327 user guide

1 Overview

There are 4 files: camera_i2c_config、i2c_read、i2c_write、

2 RaspberryPi Only, Set IO config




first,it will config IO pin.

Then you can run

2.1 camera_i2c_config USAGE

  • for standard RPI, just run


  • for RPI Computer Module

./camera_i2c_config [cameranum]

cameranum description
0 CAM0
1 CAM1



Usage: ./ [-r/w] [-f] function name -p1 param1 -p2 param2 -b bus


-r read

-w write

-f [function name] function name

-p1 [param1] param1 of each function

-p2 [param1] param2 of each function

-b [i2c bus num] i2c bus number

support functions: devid,hdver,wdrmode,videoformat,mirrormode,denoise,agc,lowlight,daynightmode,ircutdir,irtriggerhutter

cameramode, nodf, capture, csienable,saturation,wdrbtargetbr,wdrtargetbr, brightness ,contrast , sharppen, aespeed,lsc,boardmodel,yuvseq,i2cauxenable,i2cwen

Pi3B / Pi3B+ / 3A / 4B(1G/2G/4G),we use i2c0

Compute Module/ CM3,we use i2c1,please add -b 1 option.

3.1 devid
./ -r -f devid
value description
0x06 VEYE-MIPI-290/327
3.2 hdver
./ -r -f hdver
value description
0xXX Version
3.3 wdrmode
./ -r -f wdrmode
./ -w -f wdrmode -p1 [value]
value description
0x00 Back Light Mode OFF
0x01 Back Light Mode ON, LOW
0x02 Back Light Mode ON, HIGH
0x03 DOL WDR Enable
3.4 videoformat
./ -r -f videoformat
./ -w -f videoformat -p1 [value]


value description frame rate
PAL PAL(50Hz) 25fps
NTSC NTSC(60Hz) 30fps
3.5 mirrormode
./ -r -f mirrormode
./ -w -f mirrormode -p1 [value]
value description
0x00 Normal
0x01 Mirror
0x02 V-Flip
0x03 Mirror And V-Flip(180 Degree Rotate)
3.6 denoise
./ -r -f denoise
./ -w -f denoise -p1 [value]
value description
0x00 NR 2D Mode = OFF; NR 3D Mode = OFF
0x01 NR 2D Mode = OFF; NR 3D Mode = LOW
0x02 NR 2D Mode = OFF; NR 3D Mode = MIDDLE
0x03 NR 2D Mode = OFF; NR 3D Mode = HIGH
0x04 NR 2D Mode = LOW; NR 3D Mode = OFF
0x05 NR 2D Mode = LOW; NR 3D Mode = LOW
0x06 NR 2D Mode = LOW; NR 3D Mode = MIDDLE
0x07 NR 2D Mode = LOW; NR 3D Mode = HIGH
0x08 NR 2D Mode =MIDDLE; NR 3D Mode = OFF
0x09 NR 2D Mode =MIDDLE; NR 3D Mode = LOW
0x0A NR 2D Mode = MIDDLE; NR 3D Mode = MIDDLE
0x0B NR 2D Mode = MIDDLE; NR 3D Mode = HIGH
0x0C NR 2D Mode =HIGH; NR 3D Mode = OFF
0x0D NR 2D Mode =HIGH; NR 3D Mode = LOW
0x0E NR 2D Mode = HIGH; NR 3D Mode = MIDDLE
0x0F NR 2D Mode = HIGH; NR 3D Mode = HIGH
3.7 agc
./ -r -f agc
./ -w -f agc -p1 [value]

agc indicated max gain of AE mode.

Agc stands for auto gain control. It is a part of auto exposure, in different light intensity, will try to adjust the gain of sensor to achieve the same image brightness.

value description
0x00~0x0F AGC intensity
3.8 lowlight
./ -r -f lowlight
./ -w -f lowlight -p1 [value]

In the case of low illuminance, the camera module can prolong the exposure time and reduce the frame rate by configuring this parameter to achieve a better effect of low illuminance.

Note that it is not suitable for use in a sports scene.

value description
0x01 1/2*(FRAME RATE)
0x03 1/4*(FRAME RATE)
0x05 1/6*(FRAME RATE)
0x07 1/8*(FRAME RATE)
0x09 1/10*(FRAME RATE)
0x0B 1/15*(FRAME RATE)
0x0D 1/20*(FRAME RATE)
0x0F 1/25*(FRAME RATE)
0x11 1/30*(FRAME RATE)
0x00 Fixed frame rate (25/30)
3.9 daynightmode
./ -r -f daynightmode
./ -w -f daynightmode -p1 [value]
value description
0xFF Color Mode
0xFE Black&White Mode
0xFC Trigger Mode

IR-CUT (Infrared cut-off filter) is a mechanical shutter design. It is placed between the lens and the image sensor, and is controlled by a motor or an electromagnet.

IR-CUT has two status: Block or Deliver the infrared.

  • Color Mode

Image is Color Mode and IR_CUT status Block infrared.

  • Black&White Mode

Image is Black&White Mode and IR_CUT status Deliver infrared.

  • Trigger Mode

Trigger pin : J3 pin1.

Trigger pin High(3.3~12V),Image is Black&White Mode and IR-CUT status Deliver infrared.

Trigger pin Low(GND),Image is Color Mode and IR-CUT status Bolck infrared.

3.10 mshutter

close AE, use manual shutter

./ -r -f mshutter

./ -w -f mshutter -p1 [value]

value is exposure time(seconds)

If value is greater than or equal to 0x4B, it will reduce framerate.

value description
0x40 auto mode
0x41 1/30 (25)
0x42 1/60(50)
0x43 1/120(100)
0x44 1/240(200)
0x45 1/480(400)
0x46 1/1000
0x47 1/2000
0x48 1/5000
0x49 1/10000
0x4A 1/50000
0x4B 1/30 (25) *2
0x4C 1/30 (25) *4
0x4D 1/30 (25) *6
0x4E 1/30 (25) *8
0x4F 1/30 (25) *10
0x50 1/30 (25) *15
0x51 1/30 (25) *20
0x52 1/30 (25) *25
0x53 1/30 (25) *30
3.11 cameramode

Requirements:hdver >= 0x3

./ -r -f cameramode

./ -w -f cameramode -p1 [value]

value description
0x0 Stream mode
0x1 Capture mode

Stream mode: stream output

Caputre mode: output the next frame each capture cmd.

3.12 nodf

Requirements:hdver >= 0x3, effective in Stream mode

Number of dropped frames

It is a method of framerate control, output one frame,discard nodf frames,output next frame, and so on.

actual framerate = original framerate /(1+nodf)

For example,if the original framerate is 30fps, set nodf to 2, then actual framerate is 10fps.

./ -r -f nodf

./ -w -f nodf -p1 [value]

ntof range is [0-0xFF], default 0.

3.13 capture

Requirements:hdver >= 0x3, effective in Capture mode

./ -w -f capture

Output the next frame. This cmd does not interfere the sensor, it just output the next frame (the newest frame).

So it is not trigger mode, there will be a delay[0,1/framerate] between the cmd and the frame exposure.

It is applicable to those that do not require a high level of real-time performance.

3.14 csienable

Requirements:hdver >= 0x3

./ -r -f csienable

./ -w -f csienable -p1 [value]

value description
0x0 suspend csi output
0x1 enable csi output

default: 0x1

Note: This is not low power mode, the camera is still working.

3.15 brightness

./ -r -f brightness

./ -w -f brightness -p1 0x32

AE Target Brightness,rang: [0,0x64]

3.16 aespeed

./ -r -f aespeed

./ -w -f aespeed -p1 0x32 -p2 0x32

AE adjust speed,p1 is agc speed, p2 is shutter speed,Slow to Fast: [0,0x64]

3.17 contrast

./ -r -f contrast

./ -w -f contrast -p1 0x32

Contrast,range: [0,0xFF],default: 0x80.

3.18 saturation

./ -r -f saturation

./ -w -f saturation -p1 0x32

Saturation, range: [0,0x64].

3.19 sharppen

./ -r -f sharppen

./ -w -f sharppen -p1 [val1] -p2 [value]

param1 value description
0x0 sharppen disable
0x1 sharppen enable

default: 0x1

param2: sharppen strength, range [0x0-0xA]

3.20 wdrtargetbr

./ -r -f wdrtargetbr

./ -w -f wdrtargetbr -p1 0x80

The overall AE target value in WDR mode.

Takes effect in WDR mode. range: [0-0xFF], default : 0x80.

3.21 wdrbtargetbr

./ -r -f wdrbtargetbr

./ -w -f wdrbtargetbr -p1 0x80

The AE target value of the bright area in WDR mode.

Takes effect in WDR mode. range: [0-0xFF], default : 0x80.

3.22 boardmodel

./ -r -f boardmodel

Requirment: hdver >=4.

Read the board number of the board, which can be used to distinguish between VEYE-MIPI-327 and VEYE-MIPI-IMX327S.

3.23 i2cwen

./ -r -f i2cwen

./ -w -f i2cwen -p1 [0/1]

Requirment: hdver >=4.

Whether to enable the i2C write register function of the camera, enabled by default. It is used for register write protection in special cases.

3.24 i2cauxenable

./ -r -f i2cauxenable

./ -w -f i2cauxenable -p1 [0/1]

Requirment: hdver >=4.

Whether to enable auxiliary i2C. If enable auxiliary i2C, the primary i2C on the FFC cable cannot be used. Used for bus conflict resolution in special cases.

3.25 awbgain

./ -r -f awbgain

Read the Rgain and Bgain of the current white balance status , parameter range [0,0xFF].

3.26 wbmode

./ -r -f wbmode

./ -w -f wbmode -p1 [value]

White balance mode setting.

value description
0x18 Auto white balance
0x1B Manual white balance
3.27 mwbgain

./ -r -f mwbgain

./ -w -f wbmode -p1 [rgain] -p2 [bgain]

Rgain and Bgain setting in manual white balance mode.arameter range [0,0xFF].

3.28 yuvseq

./ -w -f yuvseq -p1 YUYV

./ -w -f yuvseq -p1 UYVY

./ -r -f yuvseq

Set yuv seq of camera.

Note: only supported on hdver >= 0x4