摄像头在阳光下照的就很多斜线 在暗的地方就比较少纹！这是什么情况没初始化好吗？ 我的摄像头是没FIFO的也没晶振我用MCO给了时钟； [mw_shl_code=c,true]u16 ili9320_BGR2RGB(u16 c) { u16 r, g, b, rgb; b = (c>>0) & 0x1f; g = (c>>5) & 0x3f; r = (c>>11) & 0x1f; rgb = (b<<11) + (g<<5) + (r<<0); return( rgb ); } int main(void) { // static unsigned long TimerCnt = 0; // static unsigned int temp7670 = 0; u16 value,val,val1,val2; u32 j; u16 color; delay_init(168); LCD_Init(); LCD_Clear(0);; LCD_SetAdd(0,0,239,319); while(1!=OV7670_init()); while(1) { /* TimerCnt = 0; temp7670 = 0; CLK_init_ON(); // OV7670 XCLK 开 while(value & 0x0800) value = GPIOC->IDR; // Vsync=H while((~value) & 0x0800) value = GPIOC->IDR; // Vhync=L CLK_init_OFF(); //OV7670 XCLK 关 while(TimerCnt < 76800*2) { OV7670_RST_SETB; XCLK_L; XCLK_H; XCLK_L; OV7670_RST_CLR; XCLK_H; value = GPIOC->IDR; temp7670 ++; if(value & 0x0100) // HREF = H ||(LCD_PCLK_STATE) { //value = GPIOC->IDR; //display[TimerCnt]=value; if(temp7670 == 1)// 高字节||(value & 0x0200) ||(LCD_PCLK_STATE) { val1=value& 0x00ff; } else // 低字节 if((temp7670 != 1)||(LCD_PCLK_STATE)) { val2= value<<8 ; // val =ili9320_BGR2RGB(val1 |val2); temp7670 = 0; LCD_WR_INT(val); //TFT GRAM 数据 TimerCnt ++; } } }*/ CLK_init_ON(); // OV7670 XCLK 开 //while(value & 0x0800) value = GPIOC->IDR; // Vsync=H //while((~value) & 0x0800) value = GPIOC->IDR; // Vhync=L //CLK_init_OFF(); //OV7670 XCLK 关*/ OV7670_RST_CLR; //开始复位读指针 XCLK_L; XCLK_H; XCLK_L; OV7670_RST_SETB; //复位读指针结束 XCLK_H; for(j=0;j<76800;j++) { XCLK_L; color=GPIOC->IDR&0XFF; //读数据 XCLK_H; color<<=8; XCLK_L; color|=GPIOC->IDR&0XFF; //读数据 XCLK_H; LCD_WR_INT(ili9320_BGR2RGB(color)); } //CLK_init_OFF(); } } ↓↓↓↓↓↓驱动程序↓↓↓↓↓ void CLK_init_ON(void) { GPIO_InitTypeDef GPIO_InitStructure; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); /* Configure MCO2 pin(PC9) in alternate function */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_PinAFConfig(GPIOA,GPIO_Pin_8,GPIO_AF_MCO); /* System clock selected to output on MCO2 pin(PC9)*/ RCC_MCO1Config(RCC_MCO1Source_HSE,RCC_MCO1Div_2); //RCC_HSICmd(ENABLE); } void CLK_init_OFF(void) { GPIO_InitTypeDef GPIO_InitStructure; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; GPIO_Init(GPIOA, &GPIO_InitStructure); } void OV7670_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStructure; /* Enable GPIOC clock */ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE); /* GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3| GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;//GPIO_Mode_AF_OD GPIO_Mode_AF_PP GPIO_Mode_IPU GPIO_Mode_IN_FLOATING GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_InitStructure.GPIO_OType = GPIO_OType_OD; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOF, &GPIO_InitStructure);*/ /* Enable GPIOC clock */ GPIO_InitStructure.GPIO_Pin = 0X0BFF; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_InitStructure.GPIO_OType = GPIO_OType_OD; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOC, &GPIO_InitStructure); } void OV7670_GPIO_CONTRL_CONFIG(void) { GPIO_InitTypeDef GPIO_InitStructure; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Pin = LCD_HREF_BIT|LCD_VSYNC_BIT|LCD_PCLK_BIT; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_OType = GPIO_OType_OD; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOC, &GPIO_InitStructure); /* System clock selected to output on MCO2 pin(PC9)*/ RCC_MCO2Config(RCC_MCO2Source_HSE, RCC_MCO2Div_2); } //////////////////////////// //功能：写OV7670寄存器 //返回：1-成功 0-失败 unsigned char wrOV7670Reg(unsigned char regID, unsigned char regDat) { startSCCB(); if(0==SCCBwriteByte(0x42)) { stopSCCB(); return(0); } delay_us(100); if(0==SCCBwriteByte(regID)) { stopSCCB(); return(0); } delay_us(100); if(0==SCCBwriteByte(regDat)) { stopSCCB(); return(0); } stopSCCB(); return(1); } //////////////////////////// //功能：读OV7670寄存器 //返回：1-成功 0-失败 unsigned char rdOV7670Reg(unsigned char regID, unsigned char *regDat) { //通过写操作设置寄存器地址 startSCCB(); if(0==SCCBwriteByte(0x42)) { stopSCCB(); return(0); } delay_us(100); if(0==SCCBwriteByte(regID)) { stopSCCB(); return(0); } stopSCCB(); delay_us(100); //设置寄存器地址后，才是读 startSCCB(); if(0==SCCBwriteByte(0x43)) { stopSCCB(); return(0); } delay_us(100); *regDat=SCCBreadByte(); noAck(); stopSCCB(); return(1); } //(140,16,640,480) is good for VGA //(272,16,320,240) is good for QVGA /* config_OV7670_window */ void OV7670_config_window(unsigned int startx,unsigned int starty,unsigned int width, unsigned int height) { unsigned int endx; unsigned int endy;// "v*2"必须 unsigned char temp_reg1, temp_reg2; unsigned char temp=0; endx=(startx+width); endy=(starty+height+height);// "v*2"必须 rdOV7670Reg(0x03, &temp_reg1 ); temp_reg1 &= 0xf0; rdOV7670Reg(0x32, &temp_reg2 ); temp_reg2 &= 0xc0; // Horizontal temp = temp_reg2|((endx&0x7)<<3)|(startx&0x7); wrOV7670Reg(0x32, temp ); temp = (startx&0x7F8)>>3; wrOV7670Reg(0x17, temp ); temp = (endx&0x7F8)>>3; wrOV7670Reg(0x18, temp ); // Vertical temp =temp_reg1|((endy&0x3)<<2)|(starty&0x3); wrOV7670Reg(0x03, temp ); temp = starty>>2; wrOV7670Reg(0x19, temp ); temp = endy>>2; wrOV7670Reg(0x1A, temp ); } void set_OV7670reg(void) { wrOV7670Reg(0x8c, 0x00); wrOV7670Reg(0x3a, 0x04); wrOV7670Reg(0x40, 0xd0); //原来10，通用COM15，设置输出数据范围和输出格式 wrOV7670Reg(0x8c, 0x00); wrOV7670Reg(0x12, 0x14); //输出格式QVGA,原设置为0x14 wrOV7670Reg(0x32, 0x80); wrOV7670Reg(0x17, 0x16); wrOV7670Reg(0x18, 0x04); wrOV7670Reg(0x19, 0x02); wrOV7670Reg(0x1a, 0x7b);//0x7a, 原来0x7b wrOV7670Reg(0x03, 0x06);//0x0a, 原来0x06 wrOV7670Reg(0x0c, 0x04);//原来0x04 com3,设置缩放，省电，模式等 wrOV7670Reg(0x3e, 0x00);// 原来0x00 com14，dcw和pclk缩放设置，以及分频等 wrOV7670Reg(0x70, 0x3a); //原来0x04 wrOV7670Reg(0x71, 0x35); //原来0x35 wrOV7670Reg(0x72, 0x11); //原来0x11 wrOV7670Reg(0x73, 0x00);//原来f0 已改这里改变很重要 wrOV7670Reg(0xa2, 0x00); //原来0x02 wrOV7670Reg(0x11, 0xff); //时钟频率，这里改为最大值，原来为0x81 （改变） //wrOV7670Reg(0x15 , 0x31); wrOV7670Reg(0x7a, 0x20); //原来0x20 寄存器7a--89为伽马曲线设置 wrOV7670Reg(0x7b, 0x1c); //原来0x1c wrOV7670Reg(0x7c, 0x28); //原来0x28 wrOV7670Reg(0x7d, 0x3c); //原来0x3c wrOV7670Reg(0x7e, 0x55); //原来0x55 wrOV7670Reg(0x7f, 0x68); //原来0x68 wrOV7670Reg(0x80, 0x76); //原来0x76 wrOV7670Reg(0x81, 0x80); //原来0x80 wrOV7670Reg(0x82, 0x88); //原来0x88 wrOV7670Reg(0x83, 0x8f); //原来0x8f wrOV7670Reg(0x84, 0x96); //原来0x96 wrOV7670Reg(0x85, 0xa3); //原来0xa3 wrOV7670Reg(0x86, 0xaf); //原来0xaf wrOV7670Reg(0x87, 0xc4); //原来0xc4 wrOV7670Reg(0x88, 0xd7); //原来0xd7 wrOV7670Reg(0x89, 0xe8); //原来0xe8 wrOV7670Reg(0x32,0xb6); wrOV7670Reg(0x13, 0xff); //原来0xe0 com13 AGC,AWB,AEC使能控制 （改变） wrOV7670Reg(0x00, 0x00);//AGC //原来0x00 wrOV7670Reg(0x10, 0x00);//原来0x00 曝光值 wrOV7670Reg(0x0d, 0x00);//原来0x00 COM4 wrOV7670Reg(0x14, 0x4e);//原来0x28, limit the max gain 自动增益设置 没变化 wrOV7670Reg(0xa5, 0x05); //原来0x05 50Hz bangding step limting wrOV7670Reg(0xab, 0x07); //原来0x07 60Hz bangding step limting wrOV7670Reg(0x24, 0x75); //原来0x75 agc/aec-稳定运行区域上限 wrOV7670Reg(0x25, 0x63); //原来0x63 agc/aec-稳定运行区域下限 wrOV7670Reg(0x26, 0xA5); //原来0xa5 agc/aec-快速运行区域 wrOV7670Reg(0x9f, 0x78); //原来0x78 基于直方图的aec/agc的控制1 wrOV7670Reg(0xa0, 0x68); //原来0x68 基于直方图的aec/agc的控制2 // wrOV7670Reg(0xa1, 0x03);//0x0b, wrOV7670Reg(0xa6, 0xdf);//0xd8, 原来0xdf 基于直方图的aec/agc的控制3 wrOV7670Reg(0xa7, 0xdf);//0xd8, 原来0xdf 基于直方图的aec/agc的控制4 wrOV7670Reg(0xa8, 0xf0); //原来0xf0 基于直方图的aec/agc的控制5 wrOV7670Reg(0xa9, 0x90); //原来0x90 基于直方图的aec/agc的控制6 wrOV7670Reg(0xaa, 0x94); //原来0x94 基于直方图的aec/agc的控制7 //wrOV7670Reg(0x13, 0xe5); //原来0xe5 wrOV7670Reg(0x0e, 0x61); //原来0x61 COM5 wrOV7670Reg(0x0f, 0x43); //原来0x4b COM6 wrOV7670Reg(0x16, 0x02); //原来0x02 保留 wrOV7670Reg(0x1e, 0x37);//0x07, 原来0x37 水平镜像/竖直翻转使能 设置为01后发生翻转 wrOV7670Reg(0x21, 0x02); //原来0x02 保留 wrOV7670Reg(0x22, 0x91); //原来0x91 保留 wrOV7670Reg(0x29, 0x07); //原来0x07 保留 wrOV7670Reg(0x33, 0x0b); //原来0x0b href控制，改为初始值80时改变 wrOV7670Reg(0x35, 0x0b); //原来0xe0 保留 wrOV7670Reg(0x37, 0x3f); //原来0x1d adc控制 wrOV7670Reg(0x38, 0x01); //原来0x71 adc和模拟共模控制 wrOV7670Reg(0x39, 0x00); //原来0x2a adc偏移控制 wrOV7670Reg(0x3c, 0x78); //原来0x78 COM12 wrOV7670Reg(0x4d, 0x40); //原来0x40 保留 wrOV7670Reg(0x4e, 0x20); //原来0x20 保留 wrOV7670Reg(0x69, 0x00); //原来0x00 固定增益控制 wrOV7670Reg(0x6b, 0x4a); //PLL原来0x00 pll控制 重要设置 wrOV7670Reg(0x74, 0x19); //原来0x19 手动数字增益 wrOV7670Reg(0x8d, 0x4f); //原来0x4f 保留 wrOV7670Reg(0x8e, 0x00); //原来0x00 保留 wrOV7670Reg(0x8f, 0x00); //原来0x00 保留 wrOV7670Reg(0x90, 0x00); //原来0x00 保留 wrOV7670Reg(0x91, 0x00); //原来0x00 保留 wrOV7670Reg(0x92, 0x00); //0x19,//0x66 原来0x00 空行低8位 wrOV7670Reg(0x96, 0x00); //原来0x00 保留 wrOV7670Reg(0x9a, 0x80); //原来0x80 保留 wrOV7670Reg(0xb0, 0x84); //原来0xe0 保留 wrOV7670Reg(0xb1, 0x0c); //原来0x0c ablc设置 wrOV7670Reg(0xb2, 0x0e); //原来0x0e 保留 wrOV7670Reg(0xb3, 0x82); //原来0x82 ablc target wrOV7670Reg(0xb8, 0x0a); //原来0x0a 保留 wrOV7670Reg(0x43, 0x14); //原来0x14 43-48为保留 wrOV7670Reg(0x44, 0xf0); //原来0xf0 wrOV7670Reg(0x45, 0x34); //原来0x34 wrOV7670Reg(0x46, 0x58); //原来0x58 wrOV7670Reg(0x47, 0x28); //原来0x28 wrOV7670Reg(0x48, 0x3a); //原来0x3a wrOV7670Reg(0x59, 0x88); //原来0x88 51-5e保留 wrOV7670Reg(0x5a, 0x88); //原来0x88 wrOV7670Reg(0x5b, 0x44); //原来0x44 wrOV7670Reg(0x5c, 0x67); //原来0x67 wrOV7670Reg(0x5d, 0x49); //原来0x49 wrOV7670Reg(0x5e, 0x0e); //原来0xe0 wrOV7670Reg(0x64, 0x04); //原来0x04 64-66镜头补偿 wrOV7670Reg(0x65, 0x20); //原来0x20 wrOV7670Reg(0x66, 0x05); //原来0x05 wrOV7670Reg(0x94, 0x04); //原来0x04 94-95镜头补偿 wrOV7670Reg(0x95, 0x08); //原来0x08 wrOV7670Reg(0x6c, 0x0a); //原来0x0a 6c-6fawb设置 wrOV7670Reg(0x6d, 0x55); //原来0x55 wrOV7670Reg(0x6e, 0x11); //原来0x11 wrOV7670Reg(0x6f, 0x9f); //0x9e for advance AWB 原来9f wrOV7670Reg(0x6a, 0x40); //原来0x40 g通道awb增益 wrOV7670Reg(0x01, 0x40); //原来0x40 b通道awb增益控制 wrOV7670Reg(0x02, 0x40); //原来0x40 r通道awb增益控制 //wrOV7670Reg(0x13, 0xe7); //原来0xe7 wrOV7670Reg(0x15, 0x00); //00 cmos10 含有pclk输出选择 wrOV7670Reg(0x4f, 0x80); //原来0x80 以下为 {MOD}彩矩阵系数设置 wrOV7670Reg(0x50, 0x80); //原来0x80 wrOV7670Reg(0x51, 0x00); //原来0x00 wrOV7670Reg(0x52, 0x22); //原来0x22 wrOV7670Reg(0x53, 0x5e); //原来0x5e wrOV7670Reg(0x54, 0x80); //原来0x80 wrOV7670Reg(0x58, 0x9e); //原来0x9e wrOV7670Reg(0x41, 0x08); //原来0x08 com16 以下为边缘设置 wrOV7670Reg(0x3f, 0x00); //原来0x00 边缘增强调整 wrOV7670Reg(0x75, 0x05); //原来0x05 wrOV7670Reg(0x76, 0xe1); //原来0xe1 wrOV7670Reg(0x4c, 0x00); //原来0x00 噪声抑制强度 wrOV7670Reg(0x77, 0x01); //原来0x01 噪声去除偏移 wrOV7670Reg(0x3d, 0xc1); //0xc0, com13 输出设置 wrOV7670Reg(0x4b, 0x09); //原来0x09 寄存器4b设置 wrOV7670Reg(0xc9, 0x60); //原来0x60 饱和度控制 //wrOV7670Reg(0x41, 0x38); //原来0x38 com16边缘设置设置 wrOV7670Reg(0x56, 0x40);//0x40, change according to Jim's request 对比度控制 wrOV7670Reg(0x34, 0x11); //原来0x11 感光阵列参考电压控制 wrOV7670Reg(0x3b, 0x02);//0x00,//原来0x02, com11控制 wrOV7670Reg(0xa4, 0x89);//0x88, 原来89 nt控制 wrOV7670Reg(0x96, 0x00); //原来0x00 以下96-9c保留 wrOV7670Reg(0x97, 0x30); //原来0x30 wrOV7670Reg(0x98, 0x20); //原来0x20 wrOV7670Reg(0x99, 0x30); //原来0x30 wrOV7670Reg(0x9a, 0x84); //原来0x84 wrOV7670Reg(0x9b, 0x29); //原来0x29 wrOV7670Reg(0x9c, 0x03); //原来0x03 wrOV7670Reg(0x9d, 0x4c); //原来0x4c 50HZ条纹滤波的值 wrOV7670Reg(0x9e, 0x3f); //原来0x3f 60HZ条纹滤波的值 wrOV7670Reg(0x09, 0x00); //原来0x00 通用控制器com2 wrOV7670Reg(0x3b, 0xc2);//0x82,//0xc0,//原来0xc2, //night mode 原来0xc2 } /* OV7670_init() */ //返回1成功，返回0失败 unsigned char OV7670_init(void) { unsigned char temp; // unsigned int i=0; OV7670_GPIO_Init(); OV7670_GPIO_CONTRL_CONFIG(); SCCB_GPIO_Config(); // io init.. CLK_init_ON(); temp=0x80; if(0==wrOV7670Reg(0x12, temp)) //Reset SCCB { return 0 ; } delay_ms(100); set_OV7670reg(); OV7670_config_window(272,12,320,240);// set 240*320 return 0x01; //ok } [/mw_shl_code]