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最近在研究攝像頭OV7670，程序可實(shí)現(xiàn)照相機(jī)功能，各鐘不同狀態(tài)的屏幕顯示。
源碼分享。
- #include "sys.h"
- #include "usart.h"
- #include "delay.h"
- #include "led.h"
- #include "usmart.h"
- #include "lcd.h"
- #include "ov7670.h"
- #include "exti.h"
- #include "timer.h"
- extern u8 ov_sta; //在exit.c里面定義
- extern u8 ov_frame; //在timer.c里面定義
- //更新LCD顯示
- void camera_refresh(void)
- {
- u32 j;
- u16 color;
- if(ov_sta==2)
- {
- LCD_Scan_Dir(U2D_L2R); //從上到下,從左到右
- LCD_SetCursor(0x00,0x0000); //設(shè)置光標(biāo)位置
- LCD_WriteRAM_Prepare(); //開始寫入GRAM
- OV7670_CS=0;
- OV7670_RRST=0; //開始復(fù)位讀指針
- OV7670_RCK=0;
- OV7670_RCK=1;
- OV7670_RCK=0;
- OV7670_RRST=1; //復(fù)位讀指針結(jié)束
- OV7670_RCK=1;
- for(j=0;j<76800;j++)
- {
- GPIOB->CRL=0X88888888;
- OV7670_RCK=0;
- color=OV7670_DATA; //讀數(shù)據(jù)
- OV7670_RCK=1;
- color<<=8;
- OV7670_RCK=0;
- color|=OV7670_DATA; //讀數(shù)據(jù)
- OV7670_RCK=1;
- GPIOB->CRL=0X33333333;
- LCD_WR_DATA(color);
- }
- OV7670_CS=1;
- OV7670_RCK=0;
- OV7670_RCK=1;
- EXTI->PR=1<<15; //清除LINE8上的中斷標(biāo)志位
- ov_sta=0; //開始下一次采集
- ov_frame++;
- LCD_Scan_Dir(DFT_SCAN_DIR); //恢復(fù)默認(rèn)掃描方向
- }
- }
- int main(void)
- {
- u8 i;
- delay_init(); //延時(shí)函數(shù)初始化
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);// 設(shè)置中斷優(yōu)先級(jí)分組2
- uart_init(9600);
- OV7670_Init();
- LED_Init(); //初始化與LED連接的硬件接口
- LCD_Init(); //初始化LCD
- if(lcddev.id==0X6804||lcddev.id==0X5310||lcddev.id==0X5510||lcddev.id==0X1963) //強(qiáng)制設(shè)置屏幕分辨率為320*240.以支持3.5寸大屏
- {
- lcddev.width=240;
- lcddev.height=320;
- }
- usmart_dev.init(72); //初始化USMART
-
- POINT_COLOR=RED;//設(shè)置字體為紅色
- LCD_ShowString(60,50,200,200,16,"Mini STM32");
- LCD_ShowString(60,70,200,200,16,"OV7670 TEST");
- LCD_ShowString(60,90,200,200,16,"ATOM@ALIENTEK");
- LCD_ShowString(60,110,200,200,16,"2014/3/27");
- LCD_ShowString(60,130,200,200,16,"Use USMART To Set!");
- LCD_ShowString(60,150,200,200,16,"OV7670 Init...");
- while(OV7670_Init())//初始化OV7670
- {
- LCD_ShowString(60,150,200,200,16,"OV7670 Error!!");
- delay_ms(200);
- LCD_Fill(60,150,239,166,WHITE);
- delay_ms(200);
- }
- LCD_ShowString(60,150,200,200,16,"OV7670 Init OK");
- delay_ms(1500);
- TIM3_Int_Init(10000,7199); //TIM3,10Khz計(jì)數(shù)頻率,1秒鐘中斷
- EXTI15_Init(); //使能定時(shí)器捕獲
- OV7670_Window_Set(10,174,240,320); //設(shè)置窗口
- ……………………
- …………限于本文篇幅 余下代碼請(qǐng)從51黑下載附件…………
所有資料51hei提供下載:
攝像頭實(shí)驗(yàn).rar
(379.48 KB, 下載次數(shù): 60)
2017-8-1 16:09 上傳
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