展讯平台调试Camera gc0310
要点：
- 优先保证上电成功
确定平台上电原理，我们原理是GPIO控制camera AVDD和VDDIO。通过查看开发板的EVB，ZB，MB原理图，确认camera的SIO，RST，CLK所对应的GPIO口，代码中使能这些GPIO；再找到与这些pin脚相连接的电阻或电容，使用万用表测量这些电阻及电容的电压，查看是否上电。 - 确保接口配置正确
在代码中的关键部分，比如初始化，id获取，上电，Pwn等地方添加测试语句。使用coolwatcher等测试工具，添加Trace tool并拉取trace，查看其中打印输出的log信息。再通过HW Lib中的IOMUX查看camera所使用的Pin脚是否对应了正确的GPIO口等。 - 使用示波器查看CLK RST SIO对应引脚的波形图，是否有正确的波形或时钟信号
注：
- 确定camera通信总线是Spi还是Csi模式
- 如果不上电可初始化强制拉高
- 查看sensor是否与厂商提供一致
- 确认自配管脚是否与厂商camera模组原理图配置相同
- 如果在Camera的SIO，RST，CLK均有波形的情况下，Lcd仍无数据传入，考虑是否Camera与Lcd分辨率不适配或者用来从Camera向Lcd传输数据的vsync中断信号未被触发
- 如果Camera拍照的输出数据格式为YUV，应将数据格式在传输至Lcd时转换未RGB565等格式
现在调试成功的setting如下所示：
//GC0310_OUTPUT_MODE_PACKET_DDR_2BIT
//VGA setting
/
/ system reg /
/
{0xfe,0xf0},
{0xfe,0xf0},
{0xfe,0x00},
{0xfc,0x16}, //4
{0xfc,0x16}, //4
{0xf2,0x07}, //sync output
{0xf3,0x83}, //ff//1f//01 data output
{0xf5,0x07}, //sck_dely
{0xf7,0x89}, //f8//fd 88
{0xf8,0x01}, // 00
{0xf9,0x4f}, //0f//01 4d
{0xfa,0x11}, //32
{0xfc,0xce},
{0xfd,0x00},
/
/ CISCTL reg /
/
{0x00,0x2f},
{0x01,0x0f},
{0x02,0x04},
{0x03,0x02},
{0x04,0x12},
{0x09,0x00},
{0x0a,0x00},
{0x0b,0x00},
{0x0c,0x04},
{0x0d,0x01},
{0x0e,0xe8},
{0x0f,0x02},
{0x10,0x88},
{0x16,0x00},
{0x17,0x14},
{0x18,0x1a},
{0x19,0x14},
{0x1b,0x48},
{0x1c, 0x6c},
{0x1e,0x6b},
{0x1f,0x28},
{0x20,0x8b},
{0x21,0x49},
{0x22, 0xd0}, //b0 travis 20140929
{0x23,0x04},
{0x24,0xff},
{0x34,0x20},
/
BLK
/
{0x26,0x23}, //[1]dark_current_en [0]offset_en
{0x28,0xff}, //BLK_limie_value
{0x29,0x00}, //global offset
{0x32, 0x04},//00 travis 20140929
{0x33,0x10}, //offset_ratio
{0x37,0x20}, //dark_current_ratio
{0x38,0x10},
{0x47,0x80}, //a7
{0x4e,0x66}, //select_row
{0xa8,0x02}, //win_width_dark, same with crop_win_width
{0xa9,0x80},
/
// ISP reg ///
/
{0x40,0xff},
{0x41,0x21},//00//[0]curve_en
{0x42,0xcf}, //0a//[1]awn_en
{0x44,0x02},
{0x45,0xa8},
{0x46,0x02}, //03//sync
{0x4a,0x11},
{0x4b,0x01},
{0x4c,0x20},//00[5]pretect exp
{0x4d,0x05},//update gain mode
{0x4f,0x01},
{0x50,0x01},//crop enable
{0x55,0x01},//crop window height
{0x56,0xe0},
{0x57,0x02},//crop window width
{0x58,0x80},
/
/// GAIN
/
{0x70,0x70},
{0x5a,0x84},
{0x5b,0xc9},
{0x5c,0xed},
{0x77,0x74},
{0x78,0x40},
{0x79,0x5f},
/
/// DNDD /
/
{0x82,0x08},//0x14
{0x83,0x0b},
{0x89,0xf0},
/
// EEINTP
/
{0x8f,0xaa},
{0x90,0x8c},
{0x91,0x90},
{0x92,0x03},
{0x93,0x03},
{0x94,0x05},
{0x95,0x43}, //0x65
{0x96,0xf0},
/
/ ASDE
/
{0xfe,0x00},
{0x9a, 0x20},
{0x9b, 0x80},
{0x9c, 0x40},
{0x9d, 0x80},
{0xa1, 0x30},
{0xa2, 0x32},
{0xa4, 0x80},//30 travis 20140929
{0xa5, 0x28},//30 travis 20140929
{0xaa, 0x30},//10 travis 20140929
{0xac, 0x22},
/
/// GAMMA ///
/
{0xfe, 0x00},
{0xbf,0x08},
{0xc0,0x16},
{0xc1,0x28},
{0xc2,0x41},
{0xc3,0x5a},
{0xc4,0x6c},
{0xc5,0x7a},
{0xc6,0x96},
{0xc7,0xac},
{0xc8,0xbc},
{0xc9,0xc9},
{0xca,0xd3},
{0xcb,0xdd},
{0xcc,0xe5},
{0xcd,0xf1},
{0xce,0xfa},
{0xcf,0xff},
/
/// YCP //
/
{0xd0,0x40},
{0xd1,0x38}, //0x34
{0xd2,0x38}, //0x34
{0xd3,0x50},//0x40
{0xd6,0xf2},
{0xd7,0x1b},
{0xd8,0x18},
{0xdd,0x03},
/
AEC
/
{0xfe,0x01},
{0x05,0x30},
{0x06,0x75},
{0x07,0x40},
{0x08,0xb0},
{0x0a,0xc5},
{0x0b,0x11},
{0x0c,0x00},
{0x12,0x52},
{0x13,0x38},
{0x18,0x95},
{0x19,0x96},
{0x1f, 0x20},
{0x20, 0xc0},
{0x3e,0x40},
{0x3f,0x57},
{0x40,0x7d},
{0x03,0x60},
{0x44, 0x02},
/
AWB
/
{0xfe,0x01},
{0x1c,0x91},
{0x21,0x15},
{0x50,0x80},
{0x56,0x04},
{0x59,0x08},
{0x5b,0x02},
{0x61,0x8d},
{0x62,0xa7},
{0x63,0xd0},
{0x65,0x06},
{0x66,0x06},
{0x67,0x84},
{0x69,0x08},
{0x6a,0x25},
{0x6b,0x01},
{0x6c,0x00},
{0x6d,0x02},
{0x6e,0xf0},
{0x6f,0x80},
{0x76,0x80},
{0x78,0xaf},
{0x79,0x75},
{0x7a,0x40},
{0x7b,0x50},
{0x7c,0x0c},
{0x90,0xc9},//stable AWB
{0x91,0xbe},
{0x92,0xe2},
{0x93,0xc9},
{0x95,0x1b},
{0x96,0xe2},
{0x97,0x49},
{0x98,0x1b},
{0x9a,0x49},
{0x9b,0x1b},
{0x9c,0xc3},
{0x9d,0x49},
{0x9f,0xc7},
{0xa0,0xc8},
{0xa1,0x00},
{0xa2,0x00},
{0x86,0x00},
{0x87,0x00},
{0x88,0x00},
{0x89,0x00},
{0xa4,0xb9},
{0xa5,0xa0},
{0xa6,0xba},
{0xa7,0x92},
{0xa9,0xba},
{0xaa,0x80},
{0xab,0x9d},
{0xac,0x7f},
{0xae,0xbb},
{0xaf,0x9d},
{0xb0,0xc8},
{0xb1,0x97},
{0xb3,0xb7},
{0xb4,0x7f},
{0xb5,0x00},
{0xb6,0x00},
{0x8b,0x00},
{0x8c,0x00},
{0x8d,0x00},
{0x8e,0x00},
{0x94,0x55},
{0x99,0xa6},
{0x9e,0xaa},
{0xa3,0x0a},
{0x8a,0x00},
{0xa8,0x55},
{0xad,0x55},
{0xb2,0x55},
{0xb7,0x05},
{0x8f,0x00},
{0xb8,0xcb},
{0xb9,0x9b},
/
CC
/
{0xfe,0x01},
//red skin
{0xd0, 0x38}, //red
{0xd1, 0x00},
{0xd2, 0x02},
{0xd3, 0x04},
{0xd4, 0x38},
{0xd5, 0x12},
{0xd6,0x30},
{0xd7,0x00},
{0xd8,0x0a},
{0xd9,0x16},
{0xda,0x39},
{0xdb,0xf8},
/
LSC
/
{0xfe,0x01},
{0xc1,0x3c},
{0xc2,0x50},
{0xc3,0x00},
{0xc4,0x40},
{0xc5,0x30},
{0xc6,0x30},
{0xc7,0x10},
{0xc8,0x00},
{0xc9,0x00},
{0xdc,0x20},
{0xdd,0x10},
{0xdf,0x00},
{0xde,0x00},
/
/// Histogram /
/
{0x01,0x10},
{0x0b, 0x31}, //11
{0x0e,0x50},
{0x0f,0x0f},
{0x10,0x6e},
{0x12,0xa0},
{0x15,0x60},
{0x16,0x60},
{0x17,0xe0},
/
// Measure Window ///
/
{0xcc,0x0c},//aec window size
{0xcd,0x10},
{0xce,0xa0},
{0xcf,0xe6},
/
/ dark sun //
/
{0x45,0xf7},
{0x46,0xff}, //f0//sun vaule th
{0x47,0x15},
{0x48,0x03}, //sun mode
{0x4f,0x60}, //sun_clamp
{0xfe,0x00},
{0x05, 0x00},
{0x06, 0x97}, //HB 0812
{0x07, 0x00},
{0x08, 0x1c}, //VB 0812
{0xfe, 0x01},
{0x25, 0x00}, //step 0812
{0x26, 0x47},
{0x27, 0x01}, //20.2fps
{0x28, 0xf1},
{0x29, 0x02}, //16.6fps
{0x2a, 0x38},
{0x2b, 0x02}, //14.3fps
{0x2c, 0x7f},
{0x2d, 0x02}, //5.5fps
{0x2e, 0xc6},
{0x3c,0x20},
/ SPI
/
#ifdef QVGA
{0x50,0x01}, // Crop en
{0x51,0x00},
{0x52,0x78},
{0x53,0x00},
{0x54,0xa0},
{0x55,0x00},
{0x56,0xf0},
{0x57,0x01},
{0x58,0x40},
{0xfe,0x03},
{0x01,0x00},
{0x02,0x00},
{0x10,0x00},
{0x15,0x00},
{0x17,0x00}, //01//03
{0x04,0x10},
{0x05,0x00},
{0x40,0x00},
{0x52,0xa0}, //a2 //a0//80//00 //22
{0x53,0x24}, //24
{0x54,0x20},
{0x55,0x20}, //QQ//01
{0x5a,0x40}, //00 //yuv
{0x51,0x03},
{0x64,0x06},
{0xfe,0x00},
#else // VGA
{0x50,0x01}, // Crop en
{0x51,0x00},
{0x52,0x00},
{0x53,0x00},
{0x54,0x00},
{0x55,0x01},
{0x56,0xe0},
{0x57,0x02},
{0x58,0x80},
{0xfe,0x03},
{0x01,0x00},
{0x02,0x00},
{0x10,0x00},
{0x15,0x00},
{0x17,0x00}, //01//03
{0x04,0x10},
{0x05,0x00},
{0x40,0x00},
{0x52,0xa0}, //a2 //a0//80//00 //22
{0x53,0x24}, //24
{0x54,0x20},
{0x55,0x20}, //QQ//01
{0x5a,0x40}, //00 //yuv
{0x5b,0x80},
{0x5c,0x02},
{0x5d,0xe0},
{0x5e,0x01},
{0x51,0x03},
{0x64,0x06},
{0xfe,0x00},
#endif
这套setting采用SPI通信接口，分辨率为QVGA模式，默认Camera刷新率为5帧