万能的原子哥,OV7670+F4+DCMI+DMA+外部sram读取花屏求解

jameskong · 发表于 2015-4-27 22:26:08

先上DEMOKTOOL的截图,图是通过stm32f4437的串口在第十次场中断的前提下关dcmi然后把数据发到上位机上
这是设置0x70=0x00,0x71=0x80,彩条模式的结果
输入xclk是24m的有源晶振,PCLK输出6m,求解如何出现正常的彩条,万分感谢!

下面是配置
0x3a, 0x04,
0x40, 0xd0,
0x12, 0x14,
0x32, 0x80,
0x17, 0x16,
0x18, 0x04,
0x19, 0x02,
0x1a, 0x7a,
0x03, 0x05,
0x0c, 0x00,
0x3e, 0x00,
0x70, 0x00,
0x71, 0x01,
0x72, 0x11,
0x73, 0x00,
0xa2, 0x02,
0x11, 0x81,
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,
0x10, 0x00,
0x0d, 0x00,
0x14, 0x28,
0xa5, 0x05,
0xab, 0x07,
0x24, 0x75,
0x25, 0x63,
0x26, 0xA5,
0x9f, 0x78,
0xa0, 0x68,
0xa1, 0x03,
0xa6, 0xdf,
0xa7, 0xdf,
0xa8, 0xf0,
0xa9, 0x90,
0xaa, 0x94,
0x13, 0xe5,
0x0e, 0x61,
0x0f, 0x4b,
0x16, 0x02,
0x1e, 0x07,
0x21, 0x02,
0x22, 0x91,
0x29, 0x07,
0x33, 0x0b,
0x35, 0x0b,
0x37, 0x1d,
0x38, 0x71,
0x39, 0x2a,
0x3c, 0x78,
0x4d, 0x40,
0x4e, 0x20,
0x69, 0x55,
0x6b, 0x0a,
0x74, 0x19,
0x8d, 0x4f,
0x8e, 0x00,
0x8f, 0x00,
0x90, 0x00,
0x91, 0x00,
0x92, 0x00,
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,
0x6a, 0x40,
0x01, 0x40,
0x02, 0x40,
0x13, 0xe7,
0x15, 0x08,
0x4f, 0x80,
0x50, 0x80,
0x51, 0x00,
0x52, 0x22,
0x53, 0x5e,
0x54, 0x80,
0x55, 0x0A,
0x56, 0x4f,
0x58, 0x9e,
0x41, 0x08,
0x3f, 0x05,
0x75, 0x05,
0x76, 0xe1,
0x4c, 0x0F,
0x77, 0x0a,
0x3d, 0xc2,
0x4b, 0x09,
0xc9, 0x60,
0x41, 0x38,
0x34, 0x11,
0x3b, 0x0A,
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, 0x02,
0x3b, 0x42,