本實驗開機后，先初始化攝像頭模塊（OV7670），如果初始化成功，則在LCD模塊上面顯示攝像頭模塊所
拍攝到的內容。我們可以通過KEY0設置光照模式（5種模式）、通過KEY1設置色飽和度，通過KEY_UP設置
對比度，通過TPAD設置特效（總共7種特效）。通過串口，我們可以查看當前的幀率（這里是指LCD顯示的
幀率，而不是指OV7670的輸出幀率），同時可以借助USMART設置OV7670的寄存器，方便大家調試。DS0指
示程序運行狀態。另外,本實驗可以借助USMART調試,調用SCCB_RD_Reg和SCCB_WR_Reg等函數,實現OV7670
寄存器讀寫.
單片機源程序如下:
- #include "led.h"
- #include "delay.h"
- #include "key.h"
- #include "sys.h"
- #include "lcd.h"
- #include "usart.h"
- #include "string.h"
- #include "ov7670.h"
- #include "tpad.h"
- #include "timer.h"
- #include "exti.h"
- #include "usmart.h"
- #include "EasyTracered.h"
-
- /************************************************
- 攝像頭OV7670 實驗
- ************************************************/
- const u8*LMODE_TBL[5]={"Auto","Sunny","Cloudy","Office","Home"}; //5種光照模式
- const u8*EFFECTS_TBL[7]={"Normal","Negative","B&W","Redish","Greenish","Bluish","Antique"}; //7種特效
- extern u8 ov_sta; //在exit.c里 面定義
- extern u8 ov_frame; //在timer.c里面定義
- u16 r,y;
- u16 s,z;
- //更新LCD顯示
- void camera_refresh(void)
- {
-
- RESULT Resured;//判定為的目標條件
- TARGET_CONDI Conditionred={215,240,20,240,30,160,30,30,320,240}; //紅色1 API參數 hsl的閾值，識別時用的
- u32 j;
- u16 color;
- if(ov_sta)//有幀中斷更新？
- {
- LCD_Scan_Dir(U2D_L2R); //從上到下,從左到右
- if(lcddev.id==0X1963)LCD_Set_Window((lcddev.width-240)/2,(lcddev.height-320)/2,240,320);//將顯示區域設置到屏幕中央
- else if(lcddev.id==0X5510||lcddev.id==0X5310)LCD_Set_Window((lcddev.width-320)/2,(lcddev.height-240)/2,320,240);//將顯示區域設置到屏幕中央
- LCD_WriteRAM_Prepare(); //開始寫入GRAM
- OV7670_RRST=0; //開始復位讀指針
- OV7670_RCK_L;
- OV7670_RCK_H;
- OV7670_RCK_L;
- OV7670_RRST=1; //復位讀指針結束
- OV7670_RCK_H;
- for(j=0;j<76800;j++)
- {
- OV7670_RCK_L;
- color=GPIOC->IDR&0XFF; //讀數據
- OV7670_RCK_H;
- color<<=8;
- OV7670_RCK_L;
- color|=GPIOC->IDR&0XFF; //讀數據
- OV7670_RCK_H;
- LCD->LCD_RAM=color;
- }
- if(Trace(&Conditionred,&Resured) ) //API
- {
- LCD_Fillred(Resured.x-Resured.w/2,Resured.y-Resured.h/2,Resured.x+Resured.w/2,Resured.y-Resured.h/2+1,0xf800);//u16 x,u16 y,u16 width,u16 hight,u16 Color
- LCD_Fillred(Resured.x-Resured.w/2,Resured.y-Resured.h/2,Resured.x-Resured.w/2+1,Resured.y+Resured.h/2,0xf800);
- LCD_Fillred(Resured.x-Resured.w/2,Resured.y+Resured.h/2,Resured.x+Resured.w/2,Resured.y+Resured.h/2+1,0xf800);
- LCD_Fillred(Resured.x+Resured.w/2,Resured.y-Resured.h/2,Resured.x+Resured.w/2+1,Resured.y+Resured.h/2,0xf800);
- LCD_Fillred(Resured.x-2,Resured.y-2,Resured.x+2,Resured.y+2,0xf800);
-
- //LED1=!LED1;
- r=Resured.x;
- y=Resured.y;
- }
- printf("%d %d\t ",r,y);
- ov_sta=0; //清零幀中斷標記
- ov_frame++;
- LCD_Scan_Dir(DFT_SCAN_DIR); //恢復默認掃描方向
- }
- }
- int main(void)
- {
-
- u8 lightmode=0,saturation=2,contrast=2;
- u8 effect=0;
- u8 i=0;
- u8 msgbuf[15]; //消息緩存區
- u8 tm=0;
- delay_init(); //延時函數初始化
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//設置中斷優先級分組為組2：2位搶占優先級，2位響應優先級
- uart_init(76800); //串口初始化為 115200
- usmart_dev.init(72); //初始化USMART
- LED_Init(); //初始化與LED連接的硬件接口
- KEY_Init(); //初始化按鍵
- LCD_Init(); //初始化LCD
- TPAD_Init(6); //觸摸按鍵初始化
- POINT_COLOR=RED; //設置字體為紅色
- LCD_ShowString(30,50,200,16,16,"ELITE STM32F103 ^_^");
- LCD_ShowString(30,210,200,16,16,"OV7670 Init...");
- while(OV7670_Init())//初始化OV7670
- {
- LCD_ShowString(30,210,200,16,16,"OV7670 Error!!");
- delay_ms(200);
- LCD_Fill(30,210,239,246,WHITE);
- delay_ms(200);
- }
- LCD_ShowString(30,210,200,16,16,"OV7670 Init OK");
- delay_ms(1500);
- OV7670_Light_Mode(lightmode);
- OV7670_Color_Saturation(saturation);
- OV7670_Contrast(contrast);
- OV7670_Special_Effects(effect);
-
- TIM6_Int_Init(10000,7199); //10Khz計數頻率,1秒鐘中斷
- EXTI8_Init(); //使能定時器捕獲
- OV7670_Window_Set(12,176,240,320); //設置窗口
- OV7670_CS=0;
- LCD_Clear(BLACK);
- while(1)
- {
-
- camera_refresh();//更新顯示
- if(tm)
- {
- LCD_ShowString((lcddev.width-240)/2+30,(lcddev.height-320)/2+60,200,16,16,msgbuf);
- tm--;
- }
- i++;
- if(i==15)//DS0閃爍.
- {
- i=0;
- LED0=!LED0;
- }
- }
- }
所有資料51hei提供下載:
識別紅色鎖定并串口傳回坐標.rar
(393.5 KB, 下載次數: 81)
2017-9-26 23:27 上傳
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OV7670識別紅色鎖定并串口傳回坐標
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