OV2640有数据无图像,用的正点原子的代码(问题已解决,原子哥的代码有问题)

2019-07-20 19:16发布

前一段时间随便买的一个OV2640,回来调试发现电平都是1.3V,用3.3的单片机没办法调试。后来又买了ALIENTEK的摄像头,也买了块STM32F407的开发板。





把原子哥的代码改了简单的改了一下,去掉的LCD的相关代码,其它完全相同。

现在做320*240的图片拍摄,数据帧不正常,特别是头,头部老有0,而且也没找到JPEG的头D8.


尾部有很多0,但是可以看到FF D9结束符


JPEG的输出模式,我把jpeg_data_ok放到if里面去了,个人觉得放到里面是对的,放到外面也没输出了。


其它地方完全没改了。
跪求高手看看问题在哪?
这里应该是有一些数据是正常的,但是每次头数据都不正常。
友情提示: 此问题已得到解决,问题已经关闭,关闭后问题禁止继续编辑,回答。
20条回答
bwsz
2019-07-23 18:45
hs13822104 发表于 2016-10-24 23:19
我得到的数据还是没有0XFF 0XD8 只有结尾。麻烦下兄弟能不能发一份代码一起找一下问题啊。楼主埋下坑就走 ...

我就是配置的问题 用这个配置就可以有图片了  你试试
const unsigned char OV2640_JPEG_INIT[][2]=
{
  0xff, 0x00,
  0x2c, 0xff,
  0x2e, 0xdf,
  0xff, 0x01,
  0x3c, 0x32,
  0x11, 0x00,
  0x09, 0x02,
  0x04, 0x28,
  0x13, 0xe5,
  0x14, 0x48,
  0x2c, 0x0c,
  0x33, 0x78,
  0x3a, 0x33,
  0x3b, 0xfB,
  0x3e, 0x00,
  0x43, 0x11,
  0x16, 0x10,
  0x39, 0x92,
  0x35, 0xda,
  0x22, 0x1a,
  0x37, 0xc3,
  0x23, 0x00,
  0x34, 0xc0,
  0x36, 0x1a,
  0x06, 0x88,
  0x07, 0xc0,
  0x0d, 0x87,
  0x0e, 0x41,
  0x4c, 0x00,
  0x48, 0x00,
  0x5B, 0x00,
  0x42, 0x03,
  0x4a, 0x81,
  0x21, 0x99,
  0x24, 0x40,
  0x25, 0x38,
  0x26, 0x82,
  0x5c, 0x00,
  0x63, 0x00,
  0x61, 0x70,
  0x62, 0x80,
  0x7c, 0x05,
  0x20, 0x80,
  0x28, 0x30,
  0x6c, 0x00,
  0x6d, 0x80,
  0x6e, 0x00,
  0x70, 0x02,
  0x71, 0x94,
  0x73, 0xc1,
  0x12, 0x40,
  0x17, 0x11,
  0x18, 0x43,
  0x19, 0x00,
  0x1a, 0x4b,
  0x32, 0x09,
  0x37, 0xc0,
  0x4f, 0x60,
  0x50, 0xa8,
  0x6d, 0x00,
  0x3d, 0x38,
  0x46, 0x3f,
  0x4f, 0x60,
  0x0c, 0x3c,
  0xff, 0x00,
  0xe5, 0x7f,
  0xf9, 0xc0,
  0x41, 0x24,
  0xe0, 0x14,
  0x76, 0xff,
  0x33, 0xa0,
  0x42, 0x20,
  0x43, 0x18,
  0x4c, 0x00,
  0x87, 0xd5,
  0x88, 0x3f,
  0xd7, 0x03,
  0xd9, 0x10,
  0xd3, 0x82,
  0xc8, 0x08,
  0xc9, 0x80,
  0x7c, 0x00,
  0x7d, 0x00,
  0x7c, 0x03,
  0x7d, 0x48,
  0x7d, 0x48,
  0x7c, 0x08,
  0x7d, 0x20,
  0x7d, 0x10,
  0x7d, 0x0e,
  0x90, 0x00,
  0x91, 0x0e,
  0x91, 0x1a,
  0x91, 0x31,
  0x91, 0x5a,
  0x91, 0x69,
  0x91, 0x75,
  0x91, 0x7e,
  0x91, 0x88,
  0x91, 0x8f,
  0x91, 0x96,
  0x91, 0xa3,
  0x91, 0xaf,
  0x91, 0xc4,
  0x91, 0xd7,
  0x91, 0xe8,
  0x91, 0x20,
  0x92, 0x00,
  0x93, 0x06,
  0x93, 0xe3,
  0x93, 0x05,
  0x93, 0x05,
  0x93, 0x00,
  0x93, 0x04,
  0x93, 0x00,
  0x93, 0x00,
  0x93, 0x00,
  0x93, 0x00,
  0x93, 0x00,
  0x93, 0x00,
  0x93, 0x00,
  0x96, 0x00,
  0x97, 0x08,
  0x97, 0x19,
  0x97, 0x02,
  0x97, 0x0c,
  0x97, 0x24,
  0x97, 0x30,
  0x97, 0x28,
  0x97, 0x26,
  0x97, 0x02,
  0x97, 0x98,
  0x97, 0x80,
  0x97, 0x00,
  0x97, 0x00,
  0xc3, 0xed,
  0xa4, 0x00,
  0xa8, 0x00,
  0xc5, 0x11,
  0xc6, 0x51,
  0xbf, 0x80,
  0xc7, 0x10,
  0xb6, 0x66,
  0xb8, 0xA5,
  0xb7, 0x64,
  0xb9, 0x7C,
  0xb3, 0xaf,
  0xb4, 0x97,
  0xb5, 0xFF,
  0xb0, 0xC5,
  0xb1, 0x94,
  0xb2, 0x0f,
  0xc4, 0x5c,
  0xc0, 0x64,
  0xc1, 0x4B,
  0x8c, 0x00,
  0x86, 0x3D,
  0x50, 0x00,
  0x51, 0xC8,
  0x52, 0x96,
  0x53, 0x00,
  0x54, 0x00,
  0x55, 0x00,
  0x5a, 0xC8,
  0x5b, 0x96,
  0x5c, 0x00,
  0xd3, 0x7f,
  0xc3, 0xed,
  0x7f, 0x00,
  0xda, 0x00,
  0xe5, 0x1f,
  0xe1, 0x67,
  0xe0, 0x00,
  0xdd, 0x7f,
  0x05, 0x00,

  0x12, 0x40,
  0xd3, 0x7f,
  0xc0, 0x16,
  0xC1, 0x12,
  0x8c, 0x00,
  0x86, 0x3d,
  0x50, 0x00,
  0x51, 0x2C,
  0x52, 0x24,
  0x53, 0x00,
  0x54, 0x00,
  0x55, 0x00,
  0x5A, 0x2c,
  0x5b, 0x24,
  0x5c, 0x00,
};

const unsigned char OV2640_YUV422[][2]=
{
  0xFF, 0x00,
  0x05, 0x00,
  0xDA, 0x00,
  0xD7, 0x03,
  0xDF, 0x00,
  0x33, 0xa0,
  0x3C, 0x40,
  0xe1, 0x67,
  0x00, 0x00,
};
const unsigned char OV2640_JPEG[][2]=
{
        {0xFF, 0x00},
        {0x05, 0x00},
        {0xDA, 0x10},
        {0xD7, 0x03},
        {0xDF, 0x00},
        {0x33, 0x80},   //{0x33, 0x80},
        {0x3C, 0x40},   //{0x3C, 0x40},
        {0xe1, 0x77},   //{0xe1, 0x77},
        {0x00, 0x00}
};
/* JPG 320x240 */
const unsigned char OV2640_320x240_JPEG[][2]=
{
  0xff, 0x01,
  0x12, 0x40,
  0x17, 0x11,
  0x18, 0x43,
  0x19, 0x00,
  0x1a, 0x4b,
  0x32, 0x09,
  0x4f, 0xca,
  0x50, 0xa8,
  0x5a, 0x23,
  0x6d, 0x00,
  0x39, 0x12,
  0x35, 0xda,
  0x22, 0x1a,
  0x37, 0xc3,
  0x23, 0x00,
  0x34, 0xc0,
  0x36, 0x1a,
  0x06, 0x88,
  0x07, 0xc0,
  0x0d, 0x87,
  0x0e, 0x41,
  0x4c, 0x00,
  0xff, 0x00,
  0xe0, 0x04,
  0xc0, 0x64,
  0xc1, 0x4b,
  0x86, 0x35,
  0x50, 0x89,
  0x51, 0xc8,
  0x52, 0x96,
  0x53, 0x00,
  0x54, 0x00,
  0x55, 0x00,
  0x57, 0x00,
  0x5a, 0x50,
  0x5b, 0x3c,
  0x5c, 0x00,
  0xe0, 0x00,
};

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