[问答]

OV7670的测试彩带正常，但是采集的图片不正常，谁能知道是什么问题么？

7120

问答对人有帮助，内容完整，我也想知道答案 0 ` 本帖最后由 _liuliu 于 2015-7-25 20:14 编辑我是用DemokTool图像上位机来显示的。 OV7670寄存器的配置如下： {0x3a, 0x04}, {0x40, 0xD0},//D0 {0x12, 0x14}, {0x32, 0x80}, {0x17, 0x16}, {0x18, 0x04}, {0x19, 0x02}, {0x1a, 0x7b},//0x7a, {0x03, 0x06},//0x0a, {0x0c, 0x00}, {0x3e, 0x00},// {0x70, 0x00},//00 {0x71, 0x00},//0x85测试 {0x72, 0x11}, {0x73, 0x00},// {0xa2, 0x02}, {0x11, 0x02}, {0x7a, 0x20}, {0x7b, 0x1c}, {0x7c, 0x28}, {0x7d, 0x3c}, {0x7e, 0x55}, {0x7f, 0x68}, {0x80, 0x76}, {0x81, 0x80}, {0x82, 0x88}, {0x83, 0x8f}, {0x84, 0x96}, {0x85, 0xa3}, {0x86, 0xaf}, {0x87, 0xc4}, {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}, {0x25, 0x63}, {0x26, 0xA5}, {0x9f, 0x78}, {0xa0, 0x68}, {0xa1, 0x03},//0x0b, {0xa6, 0xdf},//0xd8, {0xa7, 0xdf},//0xd8, {0xa8, 0xf0}, {0xa9, 0x90}, {0xaa, 0x94}, {0x13, 0xe5}, {0x0e, 0x61}, {0x0f, 0x4b}, {0x16, 0x02}, {0x1e, 0x37},//0x07, {0x21, 0x02}, {0x22, 0x91}, {0x29, 0x07}, {0x33, 0x0b}, {0x35, 0x0b}, {0x37, 0x1d}, {0x38, 0x71}, {0x39, 0x2a},// {0x3c, 0x78}, {0x4d, 0x40}, {0x4e, 0x20}, {0x69, 0x0c},/////////////////////// {0x6b, 0x80},//PLL {0x74, 0x19}, {0x8d, 0x4f}, {0x8e, 0x00}, {0x8f, 0x00}, {0x90, 0x00}, {0x91, 0x00}, {0x92, 0x00},//0x19,//0x66 {0x96, 0x00}, {0x9a, 0x80}, {0xb0, 0x84}, {0xb1, 0x0c}, {0xb2, 0x0e}, {0xb3, 0x82}, {0xb8, 0x0a}, {0x43, 0x14}, {0x44, 0xf0}, {0x45, 0x34}, {0x46, 0x58}, {0x47, 0x28}, {0x48, 0x3a}, {0x59, 0x88}, {0x5a, 0x88}, {0x5b, 0x44}, {0x5c, 0x67}, {0x5d, 0x49}, {0x5e, 0x0e}, {0x64, 0x04}, {0x65, 0x20}, {0x66, 0x05}, {0x94, 0x04}, {0x95, 0x08}, {0x6c, 0x0a}, {0x6d, 0x55}, {0x6e, 0x11}, {0x6f, 0x9f},//0x9e for advance AWB {0x6a, 0x00}, {0x01, 0x80}, {0x02, 0x80}, {0x13, 0xe7}, {0x15, 0x00}, {0x4f, 0x80}, {0x50, 0x80}, {0x51, 0x00}, {0x52, 0x22}, {0x53, 0x5e}, {0x54, 0x80}, {0x58, 0x9e}, {0x41, 0x08}, {0x3f, 0x00}, {0x75, 0x05}, {0x76, 0xe1}, {0x4c, 0x00}, {0x77, 0x01}, {0x3d, 0xc2}, //0xc0, {0x4b, 0x09}, {0xc9, 0x60}, {0x41, 0x38}, {0x56, 0x40},//0x40, change according to Jim's request {0x34, 0x11}, {0x3b, 0x02},//0x00,//0x02, {0xa4, 0x89},//0x88, {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, 0x03}, {0x55, 0x00}, {0x56, 0x40}, {0x3b, 0xC2},//0x82,//0xc0,//0xc2, //night mode }; 采集发送的部分程序如下，其他的都测试成功了。 for(i=0;i<9600;i++) { for(j=0;j<8;j++) { AL422B_RCLK_L; __asm(nop;); __asm(nop;); __asm(nop;); __asm(nop;); AL422B_RCLK_H; __asm(nop;); __asm(nop;); __asm(nop;); __asm(nop;); data1=PORTA; data1<<=8; AL422B_RCLK_L; __asm(nop;); __asm(nop;); __asm(nop;); __asm(nop;); AL422B_RCLK_H; __asm(nop;); __asm(nop;); __asm(nop;); __asm(nop;); data1=PORTA; RGB565ToRGB888(data1,&R,&G,&B); SCI0_Trans_One(R); SCI0_Trans_One(G); SCI0_Trans_One(B); } void RGB565ToRGB888(uint data,uchar R,uchar G,uchar B) { R=(uchar)((data&0xF800)>>8); G=(uchar)((data&0x07E0)>>3); B=(uchar)((data&0x001F)<<3); } ` 1 已退回4积分
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