ov7670 的摄像头,显示图像咋偏瘦

2019-12-22 13:44发布

下边是我初始化的

#if 1
{

    {0x3a, 0x0c},//dummy
    {0x67, 0xc0},
    {0x68, 0x80},

    {0x40, 0xd0},//565


    {0x12, 0x14},//QVGA,RGB

    {0x32, 0x80},//HREF control        bit[2:0] HREF start 3 LSB        bit[5:3] HSTOP HREF end 3LSB
    {0x17, 0x16},//HSTART start high 8-bit MSB
    {0x18, 0x04},//5 HSTOP end high 8-bit
    {0x19, 0x02},
    {0x1a, 0x7b},//0x7a,
    {0x03, 0x06},//0x0a,??êú?±·??ò????

    {0x0c, 0x00},
    {0x15, 0x00},//0x00
    {0x3e, 0x00},//10
//   {0x70, 0x3a},
  //  {0x71, 0x35},
   {0x70, 0x00},
        {0x71, 0x00},// 条码输出
    {0x72, 0x11},
    {0x73, 0x00},//

    {0xa2, 0x02},//15
    {0x11, 0x1},//  原来是0x1   0不分频
        {0x6b, 0x00},
    //{0x6b, 0x40},//原来0x4 PLL*4=48Mhz
   {0x7a, 0x20},
   {0x7b, 0x1c},
   {0x7c, 0x28},

    {0x7d, 0x3c},//20
    {0x7e, 0x55},
    {0x7f, 0x68},
    {0x80, 0x76},
   {0x81, 0x80},

    {0x82, 0x88},
   {0x83, 0x8f},
   {0x84, 0x96},
    {0x85, 0xa3},
    {0x86, 0xaf},

    {0x87, 0xc4},//30
    {0x88, 0xd7},
    {0x89, 0xe8},
    {0x13, 0xff},//e0
    {0x00, 0x00},//AGC

    {0x10, 0x00},
    {0x0d, 0x00},//00 全窗,1 1/2



    //================
    {0x14, 4},//0x38, limit the max gain
    {0xa5, 0x05},
    {0xab, 0x07},

    {0x24, 0x75},//40
    {0x25, 0x63},
    {0x26, 0xA5},
    {0x9f, 0x78},
    {0xa0, 0x68},

    {0xa1, 0x03},//0x0b,
    {0xa6, 0xdf},//0xd8,
    {0xa7, 0xdf},//0xd8,
    {0xa8, 0xf0},
    {0xa9, 0x90},

    {0xaa, 0x94},//50
    {0x13, 0xe5},
    {0x0e, 0x61},
    {0x0f, 0x4b},
    {0x16, 0x02},

    {0x1e, 0x37},//
    {0x21, 0x02},
    {0x22, 0x91},
    {0x29, 0x07},
    {0x33, 0x0b},

    {0x35, 0x0b},//60
    {0x37, 0x1d},
    {0x38, 0x71},
    {0x39, 0x2a},
    {0x3c, 0x78},

    {0x4d, 0x40},
    {0x4e, 0x20},
    {0x69, 0x00},

    {0x74, 0x19},
    {0x8d, 0x4f},

    {0x8e, 0x00},//70
    {0x8f, 0x00},
    {0x90, 0x00},
    {0x91, 0x00},
    {0x92, 0x00},//0x19,//0x66

    {0x96, 0x00},
    {0x9a, 0x80},
    {0xb0, 0x84},
    {0xb1, 0x0c},
    {0xb2, 0x0e},

    {0xb3, 0x82},//80
    {0xb8, 0x0a},
    {0x43, 0x14},
    {0x44, 0xf0},
    {0x45, 0x34},

    {0x46, 0x58},
    {0x47, 0x28},
    {0x48, 0x3a},
    {0x59, 0x88},
    {0x5a, 0x88},

    {0x5b, 0x44},//90
    {0x5c, 0x67},
    {0x5d, 0x49},
    {0x5e, 0x0e},
    {0x64, 0x04},
    {0x65, 0x20},

    {0x66, 0x05},
    {0x94, 0x04},
    {0x95, 0x08},
    {0x6c, 0x0a},
    {0x6d, 0x55},


    {0x4f, 0x80},
    {0x50, 0x80},
    {0x51, 0x00},
    {0x52, 0x22},
    {0x53, 0x5e},
    {0x54, 0x80},

    //{0x54, 0x40},//110


    {0x09, 0x03},//

    {0x6e, 0x11},//100
    {0x6f, 0x9f},//0x9e for advance AWB
    {0x55, 0x00},//
    {0x56, 0x40},//
    {0x57, 0x40},//0x40,  change according to Jim's request

    {0x6a, 0x40},
    {0x01, 0x40},
    {0x02, 0x40},
    {0x13, 0xe7},
    {0x15, 0x00},


    {0x58, 0x9e},

    {0x41, 0x08},
    {0x3f, 0x00},
    {0x75, 0x05},
    {0x76, 0xe1},
    {0x4c, 0x00},
    {0x77, 0x01},
    {0x3d, 0xc2},
    {0x4b, 0x09},
   // {0xc9, 0x60},
    {0x41, 0x38},

    {0x34, 0x11},
    {0x3b, 0x02},

    {0xa4, 0x89},
    {0x96, 0x00},
    {0x97, 0x30},
    {0x98, 0x20},
    {0x99, 0x30},
    {0x9a, 0x84},
    {0x9b, 0x29},
    {0x9c, 0x03},
    {0x9d, 0x4c},
    {0x9e, 0x3f},
    {0x78, 0x04},

    {0x79, 0x01},
    {0xc8, 0xf0},
    {0x79, 0x0f},
    {0xc8, 0x00},
    {0x79, 0x10},
    {0xc8, 0x7e},
    {0x79, 0x0a},
    {0xc8, 0x80},
    {0x79, 0x0b},
    {0xc8, 0x01},
    {0x79, 0x0c},
    {0xc8, 0x0f},
    {0x79, 0x0d},
    {0xc8, 0x20},
    {0x79, 0x09},
    {0xc8, 0x80},
    {0x79, 0x02},
    {0xc8, 0xc0},
    {0x79, 0x03},
    {0xc8, 0x40},
    {0x79, 0x05},
    {0xc8, 0x30},
    {0x79, 0x26},
    {0x09, 0x00},
};
#endif
不知道调那个才能使图像比较真实,现在显示感觉吧人拉长。
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9条回答
zaldy30
2019-12-22 14:49
正点原子的,你比较一下。

#ifndef _OV7670CFG_H
#define _OV7670CFG_H
#include "ov7670.h"       
//////////////////////////////////////////////////////////////////////////////////         
//本程序参考自网友guanfu_wang代码。
//ALIENTEK战舰STM32开发板
//OV7670 驱动代码          
//正点原子@ALIENTEK
//技术论坛:www.openedv.com
//修改日期:2012/9/14
//版本:V1.0                                                                                                                                          
//////////////////////////////////////////////////////////////////////////////////
  
//初始化寄存器序列及其对应的值
const u8 ov7670_init_reg_tbl[][2]=
{   
     /*以下为OV7670 QVGA RGB565参数  */
          {0x3a, 0x04},//
        {0x40, 0x10},
        {0x12, 0x14},//QVGA,RGB输出

        //输出窗口设置
        {0x32, 0x80},
        {0x17, 0x16},         
        {0x18, 0x04},//5
        {0x19, 0x02},
        {0x1a, 0x7a},//0x7a,
        {0x03, 0x0a},//0x0a,


        {0x0c, 0x0c},
        {0x15, 0x00},
        {0x3e, 0x00},//10
        {0x70, 0x00},
        {0x71, 0x01},
        {0x72, 0x11},
        {0x73, 0x09},//
        
        {0xa2, 0x02},//15
        {0x11, 0x00},//时钟分频设置,0,不分频.
        {0x7a, 0x20},
        {0x7b, 0x1c},
        {0x7c, 0x28},
        
        {0x7d, 0x3c},//20
        {0x7e, 0x55},
        {0x7f, 0x68},
        {0x80, 0x76},
        {0x81, 0x80},
        
        {0x82, 0x88},
        {0x83, 0x8f},
        {0x84, 0x96},
        {0x85, 0xa3},
        {0x86, 0xaf},
        
        {0x87, 0xc4},//30
        {0x88, 0xd7},
        {0x89, 0xe8},
        {0x13, 0xe0},
        {0x00, 0x00},//AGC
        
        {0x10, 0x00},
        {0x0d, 0x00},
        {0x14, 0x20},//0x38, limit the max gain
        {0xa5, 0x05},
        {0xab, 0x07},
        
        {0x24, 0x75},//40
        {0x25, 0x63},
        {0x26, 0xA5},
        {0x9f, 0x78},
        {0xa0, 0x68},
        
        {0xa1, 0x03},//0x0b,
        {0xa6, 0xdf},//0xd8,
        {0xa7, 0xdf},//0xd8,
        {0xa8, 0xf0},
        {0xa9, 0x90},
        
        {0xaa, 0x94},//50
        {0x13, 0xe5},
        {0x0e, 0x61},
        {0x0f, 0x4b},
        {0x16, 0x02},
        
        {0x1e, 0x17},//图像输出镜像控制.0x07,
        {0x21, 0x02},
        {0x22, 0x91},
        {0x29, 0x07},
        {0x33, 0x0b},
        
        {0x35, 0x0b},//60
        {0x37, 0x1d},
        {0x38, 0x71},
        {0x39, 0x2a},
        {0x3c, 0x78},
        
        {0x4d, 0x40},
        {0x4e, 0x20},
        {0x69, 0x5d},
        {0x6b, 0x40},//PLL*4=48Mhz
        {0x74, 0x19},
        {0x8d, 0x4f},
        
        {0x8e, 0x00},//70
        {0x8f, 0x00},
        {0x90, 0x00},
        {0x91, 0x00},
        {0x92, 0x00},//0x19,//0x66
        
        {0x96, 0x00},
        {0x9a, 0x80},
        {0xb0, 0x84},
        {0xb1, 0x0c},
        {0xb2, 0x0e},
        
        {0xb3, 0x82},//80
        {0xb8, 0x0a},
        {0x43, 0x14},
        {0x44, 0xf0},
        {0x45, 0x34},
        
        {0x46, 0x58},
        {0x47, 0x28},
        {0x48, 0x3a},
        {0x59, 0x88},
        {0x5a, 0x88},
        
        {0x5b, 0x44},//90
        {0x5c, 0x67},
        {0x5d, 0x49},
        {0x5e, 0x0e},
        {0x64, 0x04},
        {0x65, 0x20},
        
        {0x66, 0x05},
        {0x94, 0x04},
        {0x95, 0x08},
        {0x6c, 0x0a},
        {0x6d, 0x55},
        
        
        {0x4f, 0x80},
        {0x50, 0x80},
        {0x51, 0x00},
        {0x52, 0x22},
        {0x53, 0x5e},
        {0x54, 0x80},
        
        //{0x54, 0x40},//110
        
        
        {0x09, 0x03},//驱动能力最大

        {0x6e, 0x11},//100
        {0x6f, 0x9f},//0x9e for advance AWB
    {0x55, 0x00},//亮度
    {0x56, 0x40},//对比度
    {0x57, 0x80},//0x40,  change according to Jim's request       
};

#endif

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