OV5640 自动对焦照相模组应用指南(MIPI 接口) R2.13C - ZTE

OV5640 自动对焦摄像模组应用指南

(MIPI 接口)

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修改日期: Nov. 4th, 2011文档版本号: 2.13

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1. OV5640应用指南............................................................................................................................42. 硬件设计..........................................................................................................................................52.1 OV5640 照相模组原理图参考设计.........................................................................................52.2 主机接口...................................................................................................................................62.1.1 引脚定义............................................................................................................................62.2 供电设计...................................................................................................................................62.3 与镜头相关参数.......................................................................................................................72.3.1 边角失光............................................................................................................................72.3.2 暗角....................................................................................................................................72.3.3 分辨率................................................................................................................................72.3.4 光学对比度........................................................................................................................72.3.5 保护玻璃............................................................................................................................72.3.6 Lens补偿（镜头均匀性补偿）.......................................................................................72.3.6.1 Lens 补偿:..................................................................................................................72.3.6.2 Lens 补偿: .................................................................................................................7

3. 硬件操作..........................................................................................................................................83.1 操作模式...................................................................................................................................83.1.1 上电（power up）.............................................................................................................83.1.2 节电模式(Power Down)....................................................................................................93.1.3 由节电模式唤醒................................................................................................................93.1.4 断电....................................................................................................................................93.1.5 硬件复位..........................................................................................................................103.2 操作流程.................................................................................................................................103.2.1 不使用时断电..................................................................................................................103.2.2 不使用时处于节电模式（power down）......................................................................103.2.3 OV5640与其他设备共用I2C总线................................................................................114. 软件指南........................................................................................................................................124.1 单通道MIPI接口...................................................................................................................124.1.1 YCbCr 初始化参数.........................................................................................................124.1.2 YCbCr VGA 预览 30帧/秒............................................................................................174.1.3 YCbCr 720p 视频 30帧/秒............................................................................................184.1.4 YCbCr 5百万拍照 7.5帧/秒..........................................................................................194.2 双通道MIPI接口...................................................................................................................214.2.1 YCbCr 初始化参数 .......................................................................................................214.2.2 YCbCr VGA 预览 30帧/秒............................................................................................264.2.3 YCbCr 720p视频 60帧/秒.............................................................................................274.2.4 YCbCr 5百万拍照 15帧/秒...........................................................................................284.3 驱动能力.................................................................................................................................294.4 I/O 控制...................................................................................................................................294.5 MIPI 数据流控制....................................................................................................................304.5.1 MIPI 数据流开启............................................................................................................302

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内容目录

4.5.2 MIPI 数据流关闭............................................................................................................304.6 YUV 序列................................................................................................................................304.7 镜像和翻转.............................................................................................................................314.8 测试图案.................................................................................................................................324.9 移除灯光条纹.........................................................................................................................334.10 用户界面功能.......................................................................................................................344.10.1 亮度 亮度....................................................................................................................344.10.2对比度............................................................................................................................354.10.3色饱和度........................................................................................................................364.10.4 EV 曝光补偿................................................................................................................394.10.5 环境光模式....................................................................................................................404.10.6 特效................................................................................................................................414.10.7 夜景模式........................................................................................................................434.10.8 去除灯光条纹................................................................................................................434.11 自动对焦................................................................................................................................444.11.1 内置自动对焦...............................................................................................................444.11.2 I2C自动对焦命令.........................................................................................................444.11.3 AF 自动对焦过程..........................................................................................................454.11.4 下载固件（download firmware）...............................................................................454.11.5 自动对焦.......................................................................................................................454.11.6 释放马达至初始状态 （对焦为无穷远处）.............................................................464.12 拍照流程...............................................................................................................................464.12.1 Shutter 快门时间..........................................................................................................464.12.2 Gain 增益......................................................................................................................464.12.3 虚拟曝光行（Dummy Lines）及虚拟像素（Dummy Pixels）.................................464.12.4 拍照流程........................................................................................................................464.12.4.1 自动对焦................................................................................................................464.12.4.2 Read Preview Registers..........................................................................................464.12.4.3 改变为拍照图像分辨率........................................................................................474.12.4.4 读取拍照设置参数................................................................................................474.12.4.5 转换预览增益和曝光值为拍照增益和曝光值....................................................474.12.4.6 增益值转换为曝光值，拍照参数下去除灯光条纹............................................474.12.4.7 写入增益（gain）/曝光值（shutter）.................................................................484.12.4.8 拍照........................................................................................................................484.12.4.9 返回预览模式........................................................................................................484.13 Scale and Zoom 缩放和变焦...............................................................................................484.13.1 Scale 缩放.....................................................................................................................484.13.2 Digital Zoom 数码变焦.................................................................................................49附录 I 双通道MIPI接口摄像头驱动程序示例..............................................................................51文档版本历史....................................................................................................................................67

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1. OV5640应用指南

OV5640 是一款 1/4 英寸 5百万像素的高性能图像传感器，支持DVP 和MIPI 接口。 此文档内容为MIPI接口的应用指南。DVP接口的文档为“OV5640自动对焦模组应用指南（DVP接口）”

OV5640 传感器可用于：

手机5百万像素主摄像头平板电脑5百万像素主摄像头

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2. 硬件设计

2.1 OV5640 照相模组原理图参考设计

说明:

3.AVDD为传感器模拟电源引脚，电压范围为2.6-3.0V (纹波小)。推荐接入2.8V电压。在OTP写入状态时，AVDD 必须接入2.5V+-5%，但是OPT读取状态无此要求。4.DVDD是传感器数字电源引脚，电压1.5V±5% (纹波小)。强烈建议使用内部DVDD稳压器。

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5.DOVDD是传感器数字IO电源引脚，电压范围1.7V-3.0V(clean)，建议为1.8V。6.AGND与DGND 引脚应在模组内分开，在模组外PCB单点连接，不要在模组内连接。7.电容器的位置需靠近其相应的OV5640引脚。

8.MCP, MCN, MDP0 和 MDP1 为单通道MIPI 接口引脚。MCP, MCN, MDP0, MDN0, MDP1 和 MCP1 为双通道MIPI 接口引脚。

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2.RESETB引脚，低点平有效。置低时复位OV5640, 不使用时需在模组外部与DOVDD连接。

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1.PWND引脚，高电平有效。当上拉至和DOVDD电压一致的高电平时，使OV5640进入节电模式, 不使用时需在模组外部接地。

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2.1.1 引脚定义

OV5640 视频信号接口支持单通道MIPI传输双通道MIPI传输。MCP, MCN, MDP0 和 MDP1 为单通道MIPI 接口引脚。MCP, MCN, MDP0, MDN0, MDP1 和 MCP1 为双通道MIPI 接口引脚。

同步信号Href 和 Hsync 使用同一引脚 Href。通过SCCB 设置可选择此引脚为Href或Hsync信号。

SIO_C 以及 SIO_D 总线需外接上拉电阻, 标准上拉电阻阻值为 5.1K欧姆。

RESETB引脚低有效，且内置上拉电阻。RESETB引脚需由后端芯片控制以得到合适的上电顺序。

2.2 供电设计

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当OV5640与支持MIPI接口的后端芯片共用时，DOVDD 引脚电压需为1.8V。DVDD引脚的电压由OV5640内部的稳压器生成。所以需要2组稳压器来为OV5640供电。如下图：

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PWDN引脚高有效，且内置下拉电阻 。PWDN 引脚需由后端芯片控制以得到合适的上电顺序。

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2.2 主机接口

2.3 与镜头相关参数2.3.1 边角失光

边角失光是指图像的周边（四个角）亮度比中心暗，这种现象是由镜头造成的。可开启OV5640的镜头均匀性补偿功能来对图片周边的亮度进行补偿，使得整个图片的亮度看上去保持一致。

2.3.2 暗角

有些镜头可能会有暗角存在。暗角表示图像的周边（四个角）亮度很暗，看起来几乎是黑的。这种状况是无法用芯片的镜头均匀性补偿功能来矫正的，所以这样的镜头模组不合格，请不要采用。

2.3.3 分辨率

摄像模组的分辨率取决于镜头的设计以及模组的调焦质量，同时和图像传感器的分辨率也有关系 。其中调焦质量是摄像模组组装时非常重要的指标。

2.3.5 保护玻璃

2.3.6 Lens补偿（镜头均匀性补偿）

所有模组都必须做镜头均匀性补偿补偿，请联络OVT取得由OVT FAE工程师为不同镜头优化过的Lens补偿设置的详细参数。

2.3.6.1 Lens 补偿:

2.3.6.2 Lens 补偿:

注:

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请联络OVT FAE工程师取得模组Lens设置的参数。

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虽然保护玻璃是镜头里最便宜的部件，但是它依然对镜头的成像质量有很大的影响。保护玻璃必须由光学玻璃制造并且双面镀增透膜（AR coating）。否则会导致灵敏度损失或者严重的光学耀斑（flare）。

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就影响成像质量来讲，镜头的光学对比度也是非常重要的。如果光学对比度较低的话，会使图片看起来好像雾蒙蒙的。虽然可以通过增加传感器的对比度来使得图片显得更加锐利，但是较高的传感器成像对比度会导致图片在较暗的部分丢失细节。

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2.3.4 光学对比度

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3. 硬件操作

3.1 操作模式

3.1.1 上电（power up）

Reset#DOVDDAVDDPWDNSIO_CSIO_DXCLK

步骤 3:

等AVDD 稳定5毫秒后, 拉低PWDN。 步骤 4:

PWDN 置低1毫秒后, 拉高 ResetB。

步骤 5:

20毫秒后, 初始化OV5640的SCCB寄存器设置。寄存器设置可参考第四章的OV5640软件应用指南。

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步骤 2:

DOVDD

和 AVDD 上电。这两路最好同时上电，如果不能同时上电，那么必须使DOVDD 上电在先，AVDD上电在后。

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步骤

1:

ResetB拉低，复位OV5640。 PWDN引脚拉高。

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t0: >= 0毫秒. 从DOVDD稳定到 AVDD稳定的时间。

t2: >= 5毫秒 从AVDD稳定到传感器上电稳定之间的时间。

t3: >= 1毫秒. 传感器上电稳定到ResetB拉高之间的延迟。t4: >=20毫秒. ResetB拉高到SCCB 初始化之间的延迟。

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3.1.2 节电模式(Power Down)

PWDNSIO_CSIO_DXCLK

步骤 1:

拉高PWDN 引脚。

步骤

2:

0.1

毫秒后拉低XCLK

。在PWDN拉高以后 XCLK 必须至少保持0.1毫秒高电平。

3.1.3 由节电模式唤醒

PWDNSIO_CSIO_DXCLK

步骤

1:

加上XCLK

时钟。

步骤 2:

0.1毫秒后, 拉低PWDN。

步骤 3(可选):

初始化SCCB 寄存器。寄存器参数请见第四章。

步骤 1.

拉低XCLK。

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步骤 2.

切断AVDD, DVDD 和 DOVDD。这三路电源应同时切断，如无法同时切断，则必须做到DVDD为先，AVDD第二，DOVDD最后。9

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3.1.4 断电

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拉低PWDN 和 RESETB。

3.1.5 硬件复位

OV5640 传感器的RESETB 引脚在拉低时（接地）可以实现硬件复位。此时OV5640 清空所有寄存器并使其恢复到初始值。通过SCCB接口向寄存器0x12的[7]位写“1”，同样可以使传感器复位。

上电时整个芯片都会做复位，但即使这样，也建议在上电后手动进行硬件复位。硬件复位低位有效且基于异步设计，复位的脉冲时间必须等于1毫秒或更长。

3.2 操作流程3.2.1 不使用时断电

模式连接电池打开相机

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3.2.2 不使用时处于节电模式（power down）

操作流程上电硬件复位节电模式从节电模式唤醒初始化断电

打开相机退出相机

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操作流程无上电硬件复位初始化

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步骤 3.

其他设备接入 I2C 总线断电

进入节电模式 从节电模式唤醒上电

其他设备无法接入 I2C 总线无

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3.2.3 OV5640与其他设备共用I2C总线

4. 软件指南

4.1 单通道MIPI接口4.1.1 YCbCr 初始化参数

//

//OV5640 setting Version History//dated 04/08/2010 A02//--Based on v08 release//

//dated 04/20/2010 A03//--Based on V10 release//

//dated 04/22/2010 A04//--Based on V10 release//--updated ccr & awb setting//

//dated 04/22/2010 A06//--Based on A05 release//--Add pg setting//

//dated 05/19/2011 A09

//--changed pchg 3708 setting

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write_i2c(0x3103, 0x11);// SCCB system controlwrite_i2c(0x3008, 0x82);// software reset// delay 5ms

write_i2c(0x3008, 0x42);// software power downwrite_i2c(0x3103, 0x03);// SCCB system control

write_i2c(0x3017, 0x00);// set Frex, Vsync, Href, PCLK, D[9:6] inputwrite_i2c(0x3018, 0x00);// set d[5:0], GPIO[1:0] inputwrite_i2c(0x3034, 0x18);// MIPI 8-bit modewrite_i2c(0x3037, 0x13);// PLL

write_i2c(0x3108, 0x01);// system dividerwrite_i2c(0x3630, 0x36);write_i2c(0x3631, 0x0e);write_i2c(0x3632, 0xe2);write_i2c(0x3633, 0x12);write_i2c(0x3621, 0xe0);write_i2c(0x3704, 0xa0);write_i2c(0x3703, 0x5a);write_i2c(0x3715, 0x78);write_i2c(0x3717, 0x01);write_i2c(0x370b, 0x60);write_i2c(0x3705, 0x1a);12

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// timing 时序

write_i2c(0x3800, 0x00);// HSwrite_i2c(0x3801, 0x00);// HSwrite_i2c(0x3802, 0x00);// VSwrite_i2c(0x3804, 0x0a);// HWwrite_i2c(0x3805, 0x3f);// HW

write_i2c(0x3810, 0x00);// H offset highwrite_i2c(0x3811, 0x10);// H offset lowwrite_i2c(0x3812, 0x00);// V offset highwrite_i2c(0x3708, 0x64);

write_i2c(0x3a08, 0x01);// B50

write_i2c(0x4001, 0x02);// BLC start line

write_i2c(0x4005, 0x1a);// BLC always updatewrite_i2c(0x3000, 0x00);// system reset 0write_i2c(0x3002, 0x1c);// system reset 2write_i2c(0x3004, 0xff);// clock enable 00write_i2c(0x3006, 0xc3);// clock enable 2

write_i2c(0x300e, 0x25);// MIPI control, 1 lane, MIPI enablewrite_i2c(0x302e, 0x08);

write_i2c(0x4300, 0x30);// YUV 422, YUYV13

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// 50Hz/60Hz 50/60Hz 灯光条纹过滤write_i2c(0x3c01, 0x34);// 50/60Hz

write_i2c(0x3c04, 0x28);// threshold for low sumwrite_i2c(0x3c05, 0x98);// threshold for high sum

write_i2c(0x3c06, 0x00);// light meter 1 threshold highwrite_i2c(0x3c08, 0x00);// light meter 2 threshold highwrite_i2c(0x3c09, 0x1c);// light meter 2 threshold lowwrite_i2c(0x3c0a, 0x9c);// sample number highwrite_i2c(0x3c0b, 0x40);// sample number low

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write_i2c(0x3905, 0x02);write_i2c(0x3906, 0x10);write_i2c(0x3901, 0x0a);write_i2c(0x3731, 0x12);

write_i2c(0x3600, 0x08);// VCM debug modewrite_i2c(0x3601, 0x33);// VCM debug modewrite_i2c(0x302d, 0x60);// system controlwrite_i2c(0x3620, 0x52);write_i2c(0x371b, 0x20);write_i2c(0x471c, 0x50);

write_i2c(0x3a13, 0x43);// AGC pre-gain, 0x40 = 1xwrite_i2c(0x3a18, 0x00);// gain ceilingwrite_i2c(0x3a19, 0xf8);// gain ceilingwrite_i2c(0x3635, 0x13);write_i2c(0x3636, 0x03);write_i2c(0x3634, 0x40);write_i2c(0x3622, 0x01);

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// AWB 自动白平衡write_i2c(0x5180, 0xff);write_i2c(0x5181, 0xf2);write_i2c(0x5182, 0x00);write_i2c(0x5183, 0x14);write_i2c(0x5184, 0x25);write_i2c(0x5185, 0x24);write_i2c(0x5186, 0x09);write_i2c(0x5187, 0x09);write_i2c(0x5188, 0x09);write_i2c(0x5189, 0x75);write_i2c(0x518a, 0x54);write_i2c(0x518b, 0xe0);write_i2c(0x518c, 0xb2);write_i2c(0x518d, 0x42);write_i2c(0x518e, 0x3d);write_i2c(0x518f, 0x56);write_i2c(0x5190, 0x46);write_i2c(0x5191, 0xf8);write_i2c(0x5192, 0x04);write_i2c(0x5193, 0x70);write_i2c(0x5194, 0xf0);write_i2c(0x5195, 0xf0);write_i2c(0x5196, 0x03);write_i2c(0x5197, 0x01);write_i2c(0x5198, 0x04);write_i2c(0x5199, 0x12);write_i2c(0x519a, 0x04);write_i2c(0x519b, 0x00);write_i2c(0x519c, 0x06);write_i2c(0x519d, 0x82);write_i2c(0x519e, 0x38);// color matrix 色彩矩阵write_i2c(0x5381, 0x1e);write_i2c(0x5382, 0x5b);write_i2c(0x5383, 0x08);write_i2c(0x5384, 0x0a);write_i2c(0x5385, 0x7e);write_i2c(0x5386, 0x88);write_i2c(0x5387, 0x7c);write_i2c(0x5388, 0x6c);write_i2c(0x5389, 0x10);write_i2c(0x538a, 0x01);14

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write_i2c(0x501f, 0x00);// ISP YUV 422write_i2c(0x4407, 0x04);// JPEG QSwrite_i2c(0x440e, 0x00);

write_i2c(0x5000, 0xa7);// ISP control, Lenc on, gamma on, BPC on, WPC on, CIP on

// CIP 锐化和降噪

write_i2c(0x5300, 0x08);// sharpen MT th1write_i2c(0x5301, 0x30);// sharpen MT th2write_i2c(0x5302, 0x10);// sharpen MT offset 1write_i2c(0x5303, 0x00);// sharpen MT offset 2write_i2c(0x5304, 0x08);// DNS threshold 1write_i2c(0x5305, 0x30);// DNS threshold 2write_i2c(0x5306, 0x08);// DNS offset 1write_i2c(0x5307, 0x16);// DNS offset 2write_i2c(0x5309, 0x08);// sharpen TH th1write_i2c(0x530a, 0x30);// sharpen TH th2write_i2c(0x530b, 0x04);// sharpen TH offset 1write_i2c(0x530c, 0x06);// sharpen Th offset 2// gamma 伽玛曲线write_i2c(0x5480, 0x01);write_i2c(0x5481, 0x08);write_i2c(0x5482, 0x14);write_i2c(0x5483, 0x28);write_i2c(0x5484, 0x51);write_i2c(0x5485, 0x65);write_i2c(0x5486, 0x71);write_i2c(0x5487, 0x7d);write_i2c(0x5488, 0x87);write_i2c(0x5489, 0x91);write_i2c(0x548a, 0x9a);write_i2c(0x548b, 0xaa);write_i2c(0x548c, 0xb8);write_i2c(0x548d, 0xcd);write_i2c(0x548e, 0xdd);write_i2c(0x548f, 0xea);write_i2c(0x5490, 0x1d);

Om

// lens correction 镜头补偿write_i2c(0x5800, 0x23);write_i2c(0x5801, 0x14);15

OmniVision公司机密

niV

// UV adjust UV色彩饱和度调整

write_i2c(0x5580, 0x06);// sat on, contrast onwrite_i2c(0x5583, 0x40);// sat Uwrite_i2c(0x5584, 0x10);// sat V

write_i2c(0x5589, 0x10);// UV adjust th1write_i2c(0x558a, 0x00);// UV adjust th2[8]write_i2c(0x558b, 0xf8);// UV adjust th2[7:0]

write_i2c(0x501d, 0x04);// enable manual offset of contrast

ision C

on

fid

en

tial

for ZTE Only

write_i2c(0x538b, 0x98);

write_i2c(0x5802, 0x0f);write_i2c(0x5803, 0x0f);write_i2c(0x5804, 0x12);write_i2c(0x5805, 0x26);write_i2c(0x5806, 0x0c);write_i2c(0x5807, 0x08);write_i2c(0x5808, 0x05);write_i2c(0x5809, 0x05);write_i2c(0x580a, 0x08);write_i2c(0x580b, 0x0d);write_i2c(0x580c, 0x08);write_i2c(0x580d, 0x03);write_i2c(0x580e, 0x00);write_i2c(0x580f, 0x00);write_i2c(0x5810, 0x03);write_i2c(0x5811, 0x09);write_i2c(0x5812, 0x07);write_i2c(0x5813, 0x03);write_i2c(0x5814, 0x00);write_i2c(0x5815, 0x01);write_i2c(0x5816, 0x03);write_i2c(0x5817, 0x08);write_i2c(0x5818, 0x0d);write_i2c(0x5819, 0x08);write_i2c(0x581a, 0x05);write_i2c(0x581b, 0x06);write_i2c(0x581c, 0x08);write_i2c(0x581d, 0x0e);write_i2c(0x581e, 0x29);write_i2c(0x581f, 0x17);write_i2c(0x5820, 0x11);write_i2c(0x5821, 0x11);write_i2c(0x5822, 0x15);write_i2c(0x5823, 0x28);write_i2c(0x5824, 0x46);write_i2c(0x5825, 0x26);write_i2c(0x5826, 0x08);write_i2c(0x5827, 0x26);write_i2c(0x5828, 0x64);write_i2c(0x5829, 0x26);write_i2c(0x582a, 0x24);write_i2c(0x582b, 0x22);write_i2c(0x582c, 0x24);write_i2c(0x582d, 0x24);write_i2c(0x582e, 0x06);write_i2c(0x582f, 0x22);write_i2c(0x5830, 0x40);write_i2c(0x5831, 0x42);16

Om

niV

ision C

on

fid

OmniVision公司机密

en

tial

for ZTE Only

4.1.2 YCbCr VGA 预览 30帧/秒

Om

write_i2c(0x3108, 0x01);// system dividerwrite_i2c(0x3035, 0x12);// pllwrite_i2c(0x3036, 0x38);// pll

write_i2c(0x3c07, 0x08);// light meter 1 thresholdwrite_i2c(0x3820, 0x41);// ISP flip off, sensor flip off

write_i2c(0x3821, 0x07);// ISP mirror on, sensor mirror on// timing 时序

write_i2c(0x3814, 0x31);// X incwrite_i2c(0x3815, 0x31);// Y incwrite_i2c(0x3803, 0x04);// VSwrite_i2c(0x3806, 0x07);// VHwrite_i2c(0x3807, 0x9b);// VH

write_i2c(0x3808, 0x02);// DVPHOwrite_i2c(0x3809, 0x80);// DVPHOwrite_i2c(0x380a, 0x01);// DVPVOwrite_i2c(0x380b, 0xe0);// DVPVOwrite_i2c(0x380c, 0x07);// HTSwrite_i2c(0x380d, 0x68);// HTSwrite_i2c(0x380e, 0x03);// VTSwrite_i2c(0x380f, 0xd8);// VTSwrite_i2c(0x3813, 0x06);// V offsetwrite_i2c(0x3618, 0x00);17

OmniVision公司机密

niV

ision C

on

fid

en

tial

write_i2c(0x5025, 0x00);

write_i2c(0x3a0f, 0x30);// stable in highwrite_i2c(0x3a10, 0x28);// stable in lowwrite_i2c(0x3a1b, 0x30);// stable out highwrite_i2c(0x3a1e, 0x26);// stable out lowwrite_i2c(0x3a11, 0x60);// fast zone highwrite_i2c(0x3a1f, 0x14);// fast zone lowwrite_i2c(0x3008, 0x02);// wake up

for ZTE Only

write_i2c(0x5832, 0x24);write_i2c(0x5833, 0x26);write_i2c(0x5834, 0x24);write_i2c(0x5835, 0x22);write_i2c(0x5836, 0x22);write_i2c(0x5837, 0x26);write_i2c(0x5838, 0x44);write_i2c(0x5839, 0x24);write_i2c(0x583a, 0x26);write_i2c(0x583b, 0x28);write_i2c(0x583c, 0x42);write_i2c(0x583d, 0xce);

write_i2c(0x3a02, 0x03);write_i2c(0x3a03, 0xd8);write_i2c(0x3a09, 0x27);write_i2c(0x3a0a, 0x00);write_i2c(0x3a0b, 0xf6);write_i2c(0x3a0e, 0x03);write_i2c(0x3a0d, 0x04);write_i2c(0x3a14, 0x03);write_i2c(0x3a15, 0xd8);// 60Hz max exposure// 60Hz max exposure// B50 low// B60 high// B60 low// B50 max// B60 max

// 50Hz max exposure// 50Hz max exposure

4.1.3 YCbCr 720p 视频 30帧/秒

Om

write_i2c(0x3108, 0x02);// system dividerwrite_i2c(0x3035, 0x11);// pllwrite_i2c(0x3036, 0x54);// pll

write_i2c(0x3c07, 0x07);// light meter 1 thresholdwrite_i2c(0x3820, 0x41);// ISP flip off, sensor flip off

write_i2c(0x3821, 0x07);// ISP mirror on, sensor mirror on// timing 时序

write_i2c(0x3814, 0x31);// X incwrite_i2c(0x3815, 0x31);// Y incwrite_i2c(0x3803, 0xfa);// VSwrite_i2c(0x3806, 0x06);// VHwrite_i2c(0x3807, 0xa9);// VH

write_i2c(0x3808, 0x05);// DVPHOwrite_i2c(0x3809, 0x00);// DVPHOwrite_i2c(0x380a, 0x02);// DVPVOwrite_i2c(0x380b, 0xd0);// DVPVOwrite_i2c(0x380c, 0x07);// HTSwrite_i2c(0x380d, 0x64);// HTSwrite_i2c(0x380e, 0x02);// VTSwrite_i2c(0x380f, 0xe4);// VTSwrite_i2c(0x3813, 0x04);// V offsetwrite_i2c(0x3618, 0x00);18

OmniVision公司机密

niV

ision C

on

fid

en

tial

write_i2c(0x4004, 0x02);// BLC line numberwrite_i2c(0x4713, 0x03);// JPEG mode 3write_i2c(0x460b, 0x35);// debug

write_i2c(0x460c, 0x22);// VFIFO, PCLK manualwrite_i2c(0x4837, 0x44);// MIPI global timingwrite_i2c(0x3824, 0x02);// PCLK divider

write_i2c(0x5001, 0xa3);// SDE on, scale on, UV average off, CMX on, AWB on

for ZTE Only

write_i2c(0x3612, 0x29);write_i2c(0x3709, 0x52);write_i2c(0x370c, 0x03);

4.1.4 YCbCr 5百万拍照 7.5帧/秒

Om

write_i2c(0x3108, 0x02);// system dividerwrite_i2c(0x3035, 0x11);// pllwrite_i2c(0x3036, 0x54);// pll

write_i2c(0x3c07, 0x07);// light meter 1 thresholdwrite_i2c(0x3820, 0x40);// ISP flip off, sensor flip off

write_i2c(0x3821, 0x06);// ISP mirror on, sensor mirror on// timing 时序

write_i2c(0x3814, 0x11);// X incwrite_i2c(0x3815, 0x11);// Y incwrite_i2c(0x3803, 0x00);// VSwrite_i2c(0x3806, 0x07);// VHwrite_i2c(0x3807, 0x9f);// VH

write_i2c(0x3808, 0x0a);// DVPHOwrite_i2c(0x3809, 0x20);// DVPHOwrite_i2c(0x380a, 0x07);// DVPVOwrite_i2c(0x380b, 0x98);// DVPVOwrite_i2c(0x380c, 0x0b);// HTSwrite_i2c(0x380d, 0x1c);// HTSwrite_i2c(0x380e, 0x07);// VTSwrite_i2c(0x380f, 0xb0);// VTSwrite_i2c(0x3813, 0x04);// V offsetwrite_i2c(0x3618, 0x04);19

OmniVision公司机密

niV

ision C

on

fid

en

tial

write_i2c(0x4004, 0x02);// BLC line numberwrite_i2c(0x4713, 0x02);// JPEG mode 2write_i2c(0x460b, 0x37);

write_i2c(0x460c, 0x20);// VFIFO, PCLK autowrite_i2c(0x4837, 0x16);// MIPI global timingwrite_i2c(0x3824, 0x04);// PCLK divider

write_i2c(0x5001, 0x83);// SDE on, scale off, UV average off, CMX on, AWB on

for ZTE Only

write_i2c(0x3612, 0x29);write_i2c(0x3709, 0x52);write_i2c(0x370c, 0x03);

// banding filter 去除灯光条纹

write_i2c(0x3a02, 0x02);// 60Hz max exposurewrite_i2c(0x3a03, 0xe4);// 60Hz max exposurewrite_i2c(0x3a09, 0xbc);// B50 lowwrite_i2c(0x3a0a, 0x01);// B60 highwrite_i2c(0x3a0b, 0x72);// B60 lowwrite_i2c(0x3a0e, 0x01);// B50 maxwrite_i2c(0x3a0d, 0x02);// B60 max

write_i2c(0x3a14, 0x02);// 50Hz max exposurewrite_i2c(0x3a15, 0xe4);// 50Hz max exposure

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