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Update ov2640.c

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This commit is contained in:
Yang Qingsheng
2021-01-06 14:41:09 +08:00
committed by GitHub
parent 7f7f99d60a
commit 4179db33d2
1 changed files with 105 additions and 94 deletions
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199
board/NUCLEO_STM32L496ZG/BSP/Hardware/Src/ov2640.c
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@@ -6,11 +6,22 @@
#include "usart.h"
#include "sccb.h"
#include "stdio.h"
//<2F><>ʼ<EFBFBD><CABC>OV2640
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժ<EFBFBD>,Ĭ<><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1600*1200<30>ߴ<EFBFBD><DFB4><EFBFBD>ͼƬ!!
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ:0,<2C>ɹ<EFBFBD>
// <20><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//////////////////////////////////////////////////////////////////////////////////
//本程序只供学习使用，未经作者许可，不得用于其它任何用途
//ALIENTEK STM32F103开发板
//OV2640 驱动代码
//正点原子@ALIENTEK
//技术论坛:www.openedv.com
//创建日期:2015/4/16
//版本：V1.0
//版权所有，盗版必究。
//Copyright(C) 广州市星翼电子科技有限公司 2014-2024
//All rights reserved
//////////////////////////////////////////////////////////////////////////////////
//初始化OV2640
//配置完以后,默认输出是1600*1200尺寸的图片!!
//返回值:0,成功
// 其他,错误代码
void OV2640_PWDN(uint8_t signal)
{
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_15, (GPIO_PinState)signal);
@@ -25,38 +36,38 @@ uint8_t OV2640_Init(void)
{
uint16_t i=0;
uint16_t reg;
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>IO
//设置IO
GPIO_InitTypeDef GPIO_InitStructure;
__HAL_RCC_GPIOG_CLK_ENABLE(); //ʹ<EFBFBD><EFBFBD>GPIOBʱ<EFBFBD><EFBFBD>
__HAL_RCC_GPIOG_CLK_ENABLE(); //使能GPIOB时钟
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_13|GPIO_PIN_15, GPIO_PIN_RESET);
//GPIOF9,F10<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//GPIOF9,F10初始化设置
GPIO_InitStructure.Pin = GPIO_PIN_13|GPIO_PIN_15;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
GPIO_InitStructure.Pull = GPIO_PULLUP;//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);//<EFBFBD><EFBFBD>ʼ<EFBFBD>
GPIO_InitStructure.Pull = GPIO_PULLUP;//上拉
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);//初始<EFBFBD>
OV2640_PWDN(0); //POWER ON
delay_ms(10);
OV2640_RST(0); //<EFBFBD><EFBFBD>λOV2640
OV2640_RST(0); //复位OV2640
delay_ms(10);
OV2640_RST(1); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ
SCCB_Init(); //<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>SCCB <20><>IO<49><4F>
SCCB_WR_Reg(OV2640_DSP_RA_DLMT, 0x01); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sensor<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD>
SCCB_WR_Reg(OV2640_SENSOR_COM7, 0x80); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λOV2640
OV2640_RST(1); //结束复位
SCCB_Init(); //初始化SCCB 的IO口
SCCB_WR_Reg(OV2640_DSP_RA_DLMT, 0x01); //操作sensor寄存器
SCCB_WR_Reg(OV2640_SENSOR_COM7, 0x80); //软复位OV2640
delay_ms(50);
reg=SCCB_RD_Reg(OV2640_SENSOR_MIDH); //<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID <20>߰<EFBFBD>λ
reg=SCCB_RD_Reg(OV2640_SENSOR_MIDH); //读取厂家ID 高八位
reg<<=8;
reg|=SCCB_RD_Reg(OV2640_SENSOR_MIDL); //<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID <20>Ͱ<EFBFBD>λ
reg|=SCCB_RD_Reg(OV2640_SENSOR_MIDL); //读取厂家ID 低八位
printf("OV2640_MID = %#X\n" , reg);
if(reg!=OV2640_MID)
{
printf("MID:%d\r\n",reg);
return 1;
}
reg=SCCB_RD_Reg(OV2640_SENSOR_PIDH); //<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID <20>߰<EFBFBD>λ
reg=SCCB_RD_Reg(OV2640_SENSOR_PIDH); //读取厂家ID 高八位
reg<<=8;
reg|=SCCB_RD_Reg(OV2640_SENSOR_PIDL); //<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID <20>Ͱ<EFBFBD>λ
reg|=SCCB_RD_Reg(OV2640_SENSOR_PIDL); //读取厂家ID 低八位
if(reg!=OV2640_PID)
{
printf("HID:%d\r\n",reg);
@@ -69,34 +80,34 @@ uint8_t OV2640_Init(void)
printf("OV2640_init SUCCESS\n");
return 0x00; //ok
}
//OV2640<EFBFBD>л<EFBFBD>ΪJPEGģʽ
//OV2640切换为JPEG模式
void OV2640_JPEG_Mode(void)
{
uint16_t i=0;
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:YUV422<EFBFBD><EFBFBD>ʽ
//设置:YUV422格式
for(i=0;i<(sizeof(ov2640_yuv422_reg_tbl)/2);i++)
{
SCCB_WR_Reg(ov2640_yuv422_reg_tbl[i][0],ov2640_yuv422_reg_tbl[i][1]);
}
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:<3A><><EFBFBD><EFBFBD>JPEG<45><47><EFBFBD><EFBFBD>
//设置:输出JPEG数据
for(i=0;i<(sizeof(ov2640_jpeg_reg_tbl)/2);i++)
{
SCCB_WR_Reg(ov2640_jpeg_reg_tbl[i][0],ov2640_jpeg_reg_tbl[i][1]);
}
}
//OV2640<EFBFBD>л<EFBFBD>ΪRGB565ģʽ
//OV2640切换为RGB565模式
void OV2640_RGB565_Mode(void)
{
uint16_t i=0;
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>:RGB565<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//设置:RGB565输出
for(i=0;i<(sizeof(ov2640_rgb565_reg_tbl)/2);i++)
{
SCCB_WR_Reg(ov2640_rgb565_reg_tbl[i][0],ov2640_rgb565_reg_tbl[i][1]);
}
printf("OV2640_RGB565 SET!\n");
}
//<EFBFBD>Զ<EFBFBD><EFBFBD>ع<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,֧<><D6A7>5<EFBFBD><35><EFBFBD>ȼ<EFBFBD>
//自动曝光设置参数表,支持5个等级
const static uint8_t OV2640_AUTOEXPOSURE_LEVEL[5][8]=
{
{
@@ -130,7 +141,7 @@ const static uint8_t OV2640_AUTOEXPOSURE_LEVEL[5][8]=
0x26,0x92,
},
};
//OV2640<EFBFBD>Զ<EFBFBD><EFBFBD>ع<EFBFBD><EFBFBD>ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//OV2640自动曝光等级设置
//level:0~4
void OV2640_Auto_Exposure(uint8_t level)
{
@@ -141,12 +152,12 @@ void OV2640_Auto_Exposure(uint8_t level)
SCCB_WR_Reg(p[i*2],p[i*2+1]);
}
}
//<EFBFBD><EFBFBD>ƽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//0:<EFBFBD>Զ<EFBFBD>
//1:̫<EFBFBD><EFBFBD>sunny
//2,<EFBFBD><EFBFBD><EFBFBD><EFBFBD>cloudy
//3,<EFBFBD>칫<EFBFBD><EFBFBD>office
//4,<EFBFBD><EFBFBD><EFBFBD><EFBFBD>home
//白平衡设置
//0:自动
//1:太阳sunny
//2,阴天cloudy
//3,办公室office
//4,家里home
void OV2640_Light_Mode(uint8_t mode)
{
uint8_t regccval=0X5E;//Sunny
@@ -180,7 +191,7 @@ void OV2640_Light_Mode(uint8_t mode)
SCCB_WR_Reg(0XCD,regcdval);
SCCB_WR_Reg(0XCE,regceval);
}
//ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//色度设置
//0:-2
//1:-1
//2,0
@@ -196,7 +207,7 @@ void OV2640_Color_Saturation(uint8_t sat)
SCCB_WR_Reg(0X7D,reg7dval);
SCCB_WR_Reg(0X7D,reg7dval);
}
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//亮度设置
//0:(0X00)-2
//1:(0X10)-1
//2,(0X20) 0
@@ -211,7 +222,7 @@ void OV2640_Brightness(uint8_t bright)
SCCB_WR_Reg(0x7d, bright<<4);
SCCB_WR_Reg(0x7d, 0x00);
}
//<EFBFBD>Աȶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//对比度设置
//0:-2
//1:-1
//2,0
@@ -219,7 +230,7 @@ void OV2640_Brightness(uint8_t bright)
//4,+2
void OV2640_Contrast(uint8_t contrast)
{
uint8_t reg7d0val=0X20;//Ĭ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>ͨģʽ
uint8_t reg7d0val=0X20;//默认为普通模式
uint8_t reg7d1val=0X20;
switch(contrast)
{
@@ -249,43 +260,43 @@ void OV2640_Contrast(uint8_t contrast)
SCCB_WR_Reg(0x7d,reg7d1val);
SCCB_WR_Reg(0x7d,0x06);
}
//<EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//0:<EFBFBD><EFBFBD>ͨģʽ
//1,<EFBFBD><EFBFBD>Ƭ
//2,<EFBFBD>ڰ<EFBFBD>
//3,ƫ<EFBFBD><EFBFBD>ɫ
//4,ƫ<EFBFBD><EFBFBD>ɫ
//5,ƫ<EFBFBD><EFBFBD>ɫ
//6,<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//特效设置
//0:普通模式
//1,负片
//2,黑白
//3,偏红色
//4,偏绿色
//5,偏蓝色
//6,复古
void OV2640_Special_Effects(uint8_t eft)
{
uint8_t reg7d0val=0X00;//Ĭ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>ͨģʽ
uint8_t reg7d0val=0X00;//默认为普通模式
uint8_t reg7d1val=0X80;
uint8_t reg7d2val=0X80;
switch(eft)
{
case 1://<EFBFBD><EFBFBD>Ƭ
case 1://负片
reg7d0val=0X40;
break;
case 2://<EFBFBD>ڰ<EFBFBD>
case 2://黑白
reg7d0val=0X18;
break;
case 3://ƫ<EFBFBD><EFBFBD>ɫ
case 3://偏红色
reg7d0val=0X18;
reg7d1val=0X40;
reg7d2val=0XC0;
break;
case 4://ƫ<EFBFBD><EFBFBD>ɫ
case 4://偏绿色
reg7d0val=0X18;
reg7d1val=0X40;
reg7d2val=0X40;
break;
case 5://ƫ<EFBFBD><EFBFBD>ɫ
case 5://偏蓝色
reg7d0val=0X18;
reg7d1val=0XA0;
reg7d2val=0X40;
break;
case 6://<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
case 6://复古
reg7d0val=0X18;
reg7d1val=0X40;
reg7d2val=0XA6;
@@ -298,9 +309,9 @@ void OV2640_Special_Effects(uint8_t eft)
SCCB_WR_Reg(0x7d,reg7d1val);
SCCB_WR_Reg(0x7d,reg7d2val);
}
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//sw:0,<EFBFBD>رղ<EFBFBD><EFBFBD><EFBFBD>
// 1,<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(ע<><D7A2>OV2640<34>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD>ǵ<EFBFBD><C7B5><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
//彩条测试
//sw:0,关闭彩条
// 1,开启彩条(注意OV2640的彩条是叠加在图像上面的)
void OV2640_Color_Bar(uint8_t sw)
{
uint8_t reg;
@@ -310,9 +321,9 @@ void OV2640_Color_Bar(uint8_t sw)
if(sw)reg|=1<<1;
SCCB_WR_Reg(0X12,reg);
}
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//sx,sy,<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ַ
//width,height:<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>Ӧ:horizontal)<EFBFBD>͸߶<EFBFBD>(<28><>Ӧ:vertical)
//设置图像输出窗口
//sx,sy,起始地址
//width,height:宽度(对应:horizontal)和高度(对应:vertical)
void OV2640_Window_Set(uint16_t sx,uint16_t sy,uint16_t width,uint16_t height)
{
uint16_t endx;
@@ -322,25 +333,25 @@ void OV2640_Window_Set(uint16_t sx,uint16_t sy,uint16_t width,uint16_t height)
endy=sy+height/2;
SCCB_WR_Reg(0XFF,0X01);
temp=SCCB_RD_Reg(0X03); //<EFBFBD><EFBFBD>ȡVref֮ǰ<EFBFBD><EFBFBD>ֵ
temp=SCCB_RD_Reg(0X03); //读取Vref之前的值
temp&=0XF0;
temp|=((endy&0X03)<<2)|(sy&0X03);
SCCB_WR_Reg(0X03,temp); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Vref<EFBFBD><EFBFBD>start<EFBFBD><EFBFBD>end<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2λ
SCCB_WR_Reg(0X19,sy>>2); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Vref<EFBFBD><EFBFBD>start<EFBFBD><EFBFBD>8λ
SCCB_WR_Reg(0X1A,endy>>2); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Vref<EFBFBD><EFBFBD>end<EFBFBD>ĸ<EFBFBD>8λ
SCCB_WR_Reg(0X03,temp); //设置Vref的start和end的最低2位
SCCB_WR_Reg(0X19,sy>>2); //设置Vref的start高8位
SCCB_WR_Reg(0X1A,endy>>2); //设置Vref的end的高8位
temp=SCCB_RD_Reg(0X32); //<EFBFBD><EFBFBD>ȡHref֮ǰ<EFBFBD><EFBFBD>ֵ
temp=SCCB_RD_Reg(0X32); //读取Href之前的值
temp&=0XC0;
temp|=((endx&0X07)<<3)|(sx&0X07);
SCCB_WR_Reg(0X32,temp); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Href<EFBFBD><EFBFBD>start<EFBFBD><EFBFBD>end<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>3λ
SCCB_WR_Reg(0X17,sx>>3); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Href<EFBFBD><EFBFBD>start<EFBFBD><EFBFBD>8λ
SCCB_WR_Reg(0X18,endx>>3); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Href<EFBFBD><EFBFBD>end<EFBFBD>ĸ<EFBFBD>8λ
SCCB_WR_Reg(0X32,temp); //设置Href的start和end的最低3位
SCCB_WR_Reg(0X17,sx>>3); //设置Href的start高8位
SCCB_WR_Reg(0X18,endx>>3); //设置Href的end的高8位
}
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
//OV2640<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С(<28>ֱ<EFBFBD><D6B1><EFBFBD>),<2C><>ȫ<EFBFBD>ɸĺ<C9B8><C4BA><EFBFBD>ȷ<EFBFBD><C8B7>
//width,height:<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>Ӧ:horizontal)<EFBFBD>͸߶<EFBFBD>(<28><>Ӧ:vertical),width<EFBFBD><EFBFBD>height<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD>
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ:0,<2C><><EFBFBD>óɹ<C3B3>
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ʧ<EFBFBD><CAA7>
//设置图像输出大小
//OV2640输出图像的大小(分辨率),完全由改函数确定
//width,height:宽度(对应:horizontal)和高度(对应:vertical),width和height必须是4的倍数
//返回值:0,设置成功
// 其他,设置失败
uint8_t OV2640_OutSize_Set(uint16_t width,uint16_t height)
{
uint16_t outh;
@@ -352,23 +363,23 @@ uint8_t OV2640_OutSize_Set(uint16_t width,uint16_t height)
outh=height/4;
SCCB_WR_Reg(0XFF,0X00);
SCCB_WR_Reg(0XE0,0X04);
SCCB_WR_Reg(0X5A,outw&0XFF); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>OUTW<EFBFBD>ĵͰ<EFBFBD>λ
SCCB_WR_Reg(0X5B,outh&0XFF); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>OUTH<EFBFBD>ĵͰ<EFBFBD>λ
SCCB_WR_Reg(0X5A,outw&0XFF); //设置OUTW的低八位
SCCB_WR_Reg(0X5B,outh&0XFF); //设置OUTH的低八位
temp=(outw>>8)&0X03;
temp|=(outh>>6)&0X04;
SCCB_WR_Reg(0X5C,temp); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>OUTH/OUTW<EFBFBD>ĸ<EFBFBD>λ
SCCB_WR_Reg(0X5C,temp); //设置OUTH/OUTW的高位
SCCB_WR_Reg(0XE0,0X00);
return 0;
}
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD>񿪴<EFBFBD><EFBFBD><EFBFBD>С
//<EFBFBD><EFBFBD>:OV2640_ImageSize_Setȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>ʴӴ<EFBFBD>С.
//<EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Χ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>OV2640_OutSize_Set<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//ע<EFBFBD><EFBFBD>:<3A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF>Ⱥ͸߶<CDB8>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD>OV2640_OutSize_Set<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD>Ⱥ͸߶<EFBFBD>
// OV2640_OutSize_Set<EFBFBD><EFBFBD><EFBFBD>õĿ<EFBFBD><EFBFBD>Ⱥ͸߶<EFBFBD>,<2C><><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĿ<C3B5><C4BF>Ⱥ͸߶<CDB8>,<2C><>DSP
// <EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ⲿ<EFBFBD>豸.
//width,height:<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>Ӧ:horizontal)<EFBFBD>͸߶<EFBFBD>(<28><>Ӧ:vertical),width<EFBFBD><EFBFBD>height<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD>
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ:0,<2C><><EFBFBD>óɹ<C3B3>
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ʧ<EFBFBD><CAA7>
//设置图像开窗大小
//由:OV2640_ImageSize_Set确定传感器输出分辨率从大小.
//该函数则在这个范围上面进行开窗,用于OV2640_OutSize_Set的输出
//注意:本函数的宽度和高度,必须大于等于OV2640_OutSize_Set函数的宽度和高度
// OV2640_OutSize_Set设置的宽度和高度,根据本函数设置的宽度和高度,由DSP
// 自动计算缩放比例,输出给外部设备.
//width,height:宽度(对应:horizontal)和高度(对应:vertical),width和height必须是4的倍数
//返回值:0,设置成功
// 其他,设置失败
uint8_t OV2640_ImageWin_Set(uint16_t offx,uint16_t offy,uint16_t width,uint16_t height)
{
uint16_t hsize;
@@ -380,31 +391,31 @@ uint8_t OV2640_ImageWin_Set(uint16_t offx,uint16_t offy,uint16_t width,uint16_t
vsize=height/4;
SCCB_WR_Reg(0XFF,0X00);
SCCB_WR_Reg(0XE0,0X04);
SCCB_WR_Reg(0X51,hsize&0XFF); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>H_SIZE<EFBFBD>ĵͰ<EFBFBD>λ
SCCB_WR_Reg(0X52,vsize&0XFF); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>V_SIZE<EFBFBD>ĵͰ<EFBFBD>λ
SCCB_WR_Reg(0X53,offx&0XFF); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>offx<EFBFBD>ĵͰ<EFBFBD>λ
SCCB_WR_Reg(0X54,offy&0XFF); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>offy<EFBFBD>ĵͰ<EFBFBD>λ
SCCB_WR_Reg(0X51,hsize&0XFF); //设置H_SIZE的低八位
SCCB_WR_Reg(0X52,vsize&0XFF); //设置V_SIZE的低八位
SCCB_WR_Reg(0X53,offx&0XFF); //设置offx的低八位
SCCB_WR_Reg(0X54,offy&0XFF); //设置offy的低八位
temp=(vsize>>1)&0X80;
temp|=(offy>>4)&0X70;
temp|=(hsize>>5)&0X08;
temp|=(offx>>8)&0X07;
SCCB_WR_Reg(0X55,temp); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>H_SIZE/V_SIZE/OFFX,OFFY<EFBFBD>ĸ<EFBFBD>λ
SCCB_WR_Reg(0X57,(hsize>>2)&0X80); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>H_SIZE/V_SIZE/OFFX,OFFY<EFBFBD>ĸ<EFBFBD>λ
SCCB_WR_Reg(0X55,temp); //设置H_SIZE/V_SIZE/OFFX,OFFY的高位
SCCB_WR_Reg(0X57,(hsize>>2)&0X80); //设置H_SIZE/V_SIZE/OFFX,OFFY的高位
SCCB_WR_Reg(0XE0,0X00);
return 0;
}
//<EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD>С,Ҳ<><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD>
//该函数设置图像尺寸大小,也就是所选格式的输出分辨率
//UXGA:1600*1200,SVGA:800*600,CIF:352*288
//width,height:ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ⱥ<EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD>
//<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ:0,<2C><><EFBFBD>óɹ<C3B3>
// <EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>ʧ<EFBFBD><CAA7>
//width,height:图像宽度和图像高度
//返回值:0,设置成功
// 其他,设置失败
uint8_t OV2640_ImageSize_Set(uint16_t width,uint16_t height)
{
uint8_t temp;
SCCB_WR_Reg(0XFF,0X00);
SCCB_WR_Reg(0XE0,0X04);
SCCB_WR_Reg(0XC0,(width)>>3&0XFF); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>HSIZE<EFBFBD><EFBFBD>10:3λ
SCCB_WR_Reg(0XC1,(height)>>3&0XFF); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD>VSIZE<EFBFBD><EFBFBD>10:3λ
SCCB_WR_Reg(0XC0,(width)>>3&0XFF); //设置HSIZE的10:3位
SCCB_WR_Reg(0XC1,(height)>>3&0XFF); //设置VSIZE的10:3位
temp=(width&0X07)<<3;
temp|=height&0X07;
temp|=(width>>4)&0X80;