ov5640寄存器配置
时间: 2023-09-23 13:03:20 浏览: 80
OV5640是一款常用的图像传感器,下面是常见的OV5640寄存器配置参考:
1. 初始化寄存器配置
这是OV5640的初始化寄存器配置,可以在启动时使用它们来初始化传感器。
```
// Reset the sensor
ov5640_write_reg(0x3008, 0x80);
usleep(10000);
// Bank Select
ov5640_write_reg(0x3103, 0x11);
// Image Signal Processor (ISP)
ov5640_write_reg(0x3008, 0x42);
ov5640_write_reg(0x3103, 0x03);
ov5640_write_reg(0x3017, 0xff);
ov5640_write_reg(0x3018, 0xff);
ov5640_write_reg(0x3034, 0x1a);
ov5640_write_reg(0x3035, 0x11);
ov5640_write_reg(0x3036, 0x46);
ov5640_write_reg(0x3037, 0x13);
// Output Format
ov5640_write_reg(0x3030, 0x2b);
ov5640_write_reg(0x303f, 0x11);
ov5640_write_reg(0x3031, 0x0a);
ov5640_write_reg(0x3032, 0x80);
ov5640_write_reg(0x3033, 0x00);
ov5640_write_reg(0x3034, 0x1a);
ov5640_write_reg(0x3035, 0x21);
ov5640_write_reg(0x3036, 0x44);
ov5640_write_reg(0x3037, 0x13);
// Clock Settings
ov5640_write_reg(0x3108, 0x01);
ov5640_write_reg(0x3630, 0x36);
ov5640_write_reg(0x3631, 0x0e);
ov5640_write_reg(0x3632, 0xe2);
ov5640_write_reg(0x3633, 0x12);
ov5640_write_reg(0x3621, 0xe0);
ov5640_write_reg(0x3704, 0xa0);
ov5640_write_reg(0x3703, 0x5a);
ov5640_write_reg(0x3715, 0x78);
ov5640_write_reg(0x3717, 0x01);
ov5640_write_reg(0x370b, 0x60);
ov5640_write_reg(0x3705, 0x1a);
ov5640_write_reg(0x3905, 0x02);
// Exposure Control
ov5640_write_reg(0x3503, 0x07);
ov5640_write_reg(0x350b, 0x6f);
ov5640_write_reg(0x350a, 0x4f);
ov5640_write_reg(0x3500, 0x00);
ov5640_write_reg(0x3501, 0x3d);
ov5640_write_reg(0x3502, 0x40);
ov5640_write_reg(0x350c, 0x08);
// Auto Exposure Control
ov5640_write_reg(0x3a0f, 0x38);
ov5640_write_reg(0x3a10, 0x30);
ov5640_write_reg(0x3a1b, 0x3c);
ov5640_write_reg(0x3a1e, 0x30);
ov5640_write_reg(0x3a11, 0x70);
ov5640_write_reg(0x3a1f, 0x10);
// White Balance Control
ov5640_write_reg(0x3406, 0x00);
ov5640_write_reg(0x3400, 0x00);
ov5640_write_reg(0x3401, 0x00);
ov5640_write_reg(0x3402, 0x00);
ov5640_write_reg(0x3403, 0x00);
ov5640_write_reg(0x3404, 0x00);
ov5640_write_reg(0x3405, 0x00);
ov5640_write_reg(0x5001, 0xa3);
ov5640_write_reg(0x5583, 0x40);
ov5640_write_reg(0x5584, 0x40);
ov5640_write_reg(0x5003, 0x08);
ov5640_write_reg(0x3037, 0x13);
// Banding Filter
ov5640_write_reg(0x3a08, 0x01);
ov5640_write_reg(0x3a09, 0x27);
ov5640_write_reg(0x3a0e, 0x03);
ov5640_write_reg(0x3a0a, 0x00);
ov5640_write_reg(0x3a0b, 0xf6);
ov5640_write_reg(0x3a0d, 0x04);
// Color Matrix
ov5640_write_reg(0x5193, 0x70);
ov5640_write_reg(0x5194, 0x70);
ov5640_write_reg(0x5195, 0x70);
ov5640_write_reg(0x5196, 0x80);
ov5640_write_reg(0x5197, 0x7a);
ov5640_write_reg(0x5198, 0x88);
ov5640_write_reg(0x5199, 0x8f);
// Gamma Control
ov5640_write_reg(0x5480, 0x01);
ov5640_write_reg(0x5481, 0x08);
ov5640_write_reg(0x5482, 0x14);
ov5640_write_reg(0x5483, 0x28);
ov5640_write_reg(0x5484, 0x51);
ov5640_write_reg(0x5485, 0x65);
ov5640_write_reg(0x5486, 0x71);
ov5640_write_reg(0x5487, 0x7d);
ov5640_write_reg(0x5488, 0x87);
ov5640_write_reg(0x5489, 0x91);
ov5640_write_reg(0x548a, 0x9a);
ov5640_write_reg(0x548b, 0xaa);
ov5640_write_reg(0x548c, 0xb8);
ov5640_write_reg(0x548d, 0xcd);
ov5640_write_reg(0x548e, 0xdd);
ov5640_write_reg(0x548f, 0xea);
// JPEG Compression
ov5640_write_reg(0x5000, 0xff);
ov5640_write_reg(0x501f, 0x01);
ov5640_write_reg(0x5000, 0x00);
```
2. 曝光时间配置
曝光时间是指传感器光敏元件感光时间的长短。在OV5640中,曝光时间可以通过以下寄存器进行配置:
```
// Set the exposure time
ov5640_write_reg(0x3500, 0x00);
ov5640_write_reg(0x3501, 0x3d);
ov5640_write_reg(0x3502, 0x40);
```
其中,0x3500寄存器用于控制曝光时间的单位,0x3501和0x3502寄存器用于设置曝光时间的值。具体的计算公式为:
```
exposure_time = (0x3d << 8) | 0x40
```
3. 白平衡配置
白平衡是指调节传感器的红、绿、蓝三种颜色的强度,使得图像中的白色看起来更自然。在OV5640中,白平衡可以通过以下寄存器进行配置:
```
// Set the white balance
ov5640_write_reg(0x3406, 0x00);
ov5640_write_reg(0x3400, 0x00);
ov5640_write_reg(0x3401, 0x00);
ov5640_write_reg(0x3402, 0x00);
ov5640_write_reg(0x3403, 0x00);
ov5640_write_reg(0x3404, 0x00);
ov5640_write_reg(0x3405, 0x00);
```
其中,0x3406寄存器用于选择白平衡模式,0x3400到0x3405寄存器用于设置红、绿、蓝三种颜色的强度值。具体的计算公式为:
```
red_gain = (0x00 << 8) | 0x00
green_gain = (0x00 << 8) | 0x00
blue_gain = (0x00 << 8) | 0x00
```
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