如题,本人战舰开发板使用ov2640摄像头,得到jpeg格式的图片传给电脑端显示。程序使用原子的例程。当使用UXGA模式,并配置JPEG格式大小为320*240时,电脑上位机能够正常显示,但是传输延时比较大。改为SVGA模式时,传输延时变小了,但是电脑端无法正常显示图片,图片有时有错位,如下图所示。程序中,关于SVGA配置没有进行改动,为:const u8 ov2640_svga_init_reg_tbl[][2]= {
0xff, 0x00,
0x2c, 0xff,
0x2e, 0xdf,
0xff, 0x01,
0x3c, 0x32,
//
0x11, 0x00,
0x09, 0x02,
0x04, 0xD8,
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,
0x46, 0x22,
0x0c, 0x3c,
//
0x61, 0x70,
0x62, 0x80,
0x7c, 0x05,
//
0x20, 0x80,
0x28, 0x30,
0x6c, 0x00,
0x6d, 0x80,
0x6e, 0x00,
0x70, 0x02,
0x71, 0x94,
0x73, 0xc1,
0x3d, 0x34,
0x5a, 0x57,
0x12, 0x40,//
0x17, 0x11,
0x18, 0x43,
0x19, 0x00,
0x1a, 0x4b,
0x32, 0x09,
0x37, 0xc0,
//
0x4f, 0xca,
0x50, 0xa8,
0x5a, 0x23,
0x6d, 0x00,
0x3d, 0x38,
//
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, 0x02,//auto
//
0xc3, 0xed,
0x7f, 0x00,
0xda, 0x09,
0xe5, 0x1f,
0xe1, 0x67,
0xe0, 0x00,
0xdd, 0x7f,
0x05, 0x00,
};
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