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#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "lcd.h"
#include "key.h"
#include "usmart.h"
#include "malloc.h"
#include "sdio_sdcard.h"
#include "w25qxx.h"
#include "ff.h"
#include "exfuns.h"
#include "text.h"
#include "piclib.h"
#include "string.h"
#include "math.h"
#include "ov7670.h"
#include "beep.h"
#include "timer.h"
#include "exti.h"
#include "ov7725.h"
#define OV7725 1
#define OV7670 2
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(OV7725)
void OV7725_camera_refresh(void)
{
u32 i,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
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
if(lcddev.id==0X1963)
LCD_Set_Window((lcddev.width-320)/2,(lcddev.height-240)/2,240,320);//將顯示區域設置到屏幕中央
LCD_WriteRAM_Prepare(); //開始寫入GRAM
OV7725_RRST=0; //開始復位讀指針
OV7725_RCK_L;
OV7725_RCK_H;
OV7725_RCK_L;
OV7725_RRST=1; //復位讀指針結束
OV7725_RCK_H;
for(i=0;i<240;i++)
{
for(j=0;j<320;j++)
{
OV7725_RCK_L;
color=GPIOC->IDR&0XFF; //讀數據
OV7725_RCK_H;
color<<=8;
OV7725_RCK_L;
color|=GPIOC->IDR&0XFF; //讀數據
OV7725_RCK_H;
LCD->LCD_RAM=color;
}
}
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
}
}
//更新LCD顯示(OV7670)
void OV7670_camera_refresh(void)
{
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;
}
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
}
}
//文件名自增（避免覆蓋）
//組合成:形如"0:PHOTO/PIC13141.bmp"的文件名
void camera_new_pathname(u8 *pname)
{
u8 res;
u16 index=0;
while(index<0XFFFF)
{
sprintf((char*)pname,"0:PHOTO/PIC%05d.bmp",index);
res=f_open(ftemp,(const TCHAR*)pname,FA_READ);//嘗試打開這個文件
if(res==FR_NO_FILE)break; //該文件名不存在=正是我們需要的.
index++;
}
}
int main(void)
{
u8 sensor=0;
u8 res;
u8 *pname; //帶路徑的文件名
u8 key; //鍵值
u8 i;
u8 sd_ok=1; //0,sd卡不正常;1,SD卡正常.
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(115200); //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
BEEP_Init(); //蜂鳴器初始化
W25QXX_Init(); //初始化W25Q128
my_mem_init(SRAMIN); //初始化內部內存池
exfuns_init(); //為fatfs相關變量申請內存
f_mount(fs[0],"0:",1); //掛載SD卡
f_mount(fs[1],"1:",1); //掛載FLASH.
POINT_COLOR=RED;
while(font_init()) //檢查字庫
{
LCD_ShowString(30,50,200,16,16,"Font Error!");
delay_ms(200);
LCD_Fill(30,50,240,66,WHITE);//清除顯示
}
Show_Str(30,50,200,16,"戰艦STM32F1開發板",16,0);
Show_Str(30,70,200,16,"照相機實驗",16,0);
Show_Str(30,90,200,16,"KEY0:拍照",16,0);
Show_Str(30,110,200,16,"正點原子@ALIENTEK",16,0);
Show_Str(30,130,200,16,"2015年1月20日",16,0);
res=f_mkdir("0:/PHOTO"); //創建PHOTO文件夾
if(res!=FR_EXIST&&res!=FR_OK) //發生了錯誤
{
Show_Str(30,150,240,16,"SD卡錯誤!",16,0);
delay_ms(200);
Show_Str(30,170,240,16,"拍照功能將不可用!",16,0);
sd_ok=0;
}else
{
Show_Str(30,150,240,16,"SD卡正常!",16,0);
delay_ms(200);
Show_Str(30,170,240,16,"KEY0:拍照",16,0);
sd_ok=1;
}
pname=mymalloc(SRAMIN,30); //為帶路徑的文件名分配30個字節的內存
while(pname==NULL) //內存分配出錯
{
Show_Str(30,190,240,16,"內存分配失敗!",16,0);
delay_ms(200);
LCD_Fill(30,190,240,146,WHITE);//清除顯示
delay_ms(200);
}
while(1)//初始化OV7725_OV7670
{
if(OV7725_Init()==0)
{
sensor=OV7725;
LCD_ShowString(30,190,200,16,16,"OV7725 Init OK ");
while(1)
{
key=KEY_Scan(0);
if(key==KEY0_PRES)
{
OV7725_Window_Set(320,240,0);//QVGA模式輸出
break;
}
else if(key==KEY1_PRES)
{
OV7725_Window_Set(320,240,1);//VGA模式輸出
break;
}
i++;
if(i==100)LCD_ShowString(30,206,200,16,16,"KEY0:QVGA KEY1:VGA"); //閃爍顯示提示信息
if(i==200)
{
LCD_Fill(30,206,200,250+16,WHITE);
i=0;
}
delay_ms(5);
}
OV7725_CS=0;
break;
}
else if(OV7670_Init()==0)
{
sensor=OV7670;
LCD_ShowString(30,190,200,16,16,"OV7670 Init OK ");
delay_ms(1500);
OV7670_Window_Set(12,176,240,320);//設置窗口
OV7670_CS=0;
break;
}
else
{
LCD_ShowString(30,190,200,16,16,"OV7725_OV7670 Error!!");
delay_ms(200);
LCD_Fill(30,190,239,246,WHITE);
delay_ms(200);
}
}
TIM6_Int_Init(10000,7199); //10Khz計數頻率,1秒鐘中斷
EXTI8_Init(); //使能外部中斷8,捕獲幀中斷
LCD_Clear(BLACK);
while(1)
{
key=KEY_Scan(0);//不支持連按
if(key==KEY0_PRES)
{
if(sd_ok)
{
LED1=0; //點亮DS1,提示正在拍照
camera_new_pathname(pname);//得到文件名
if(bmp_encode(pname,(lcddev.width-240)/2,(lcddev.height-320)/2,240,320,0))//拍照有誤
{
Show_Str(40,130,240,12,"寫入文件錯誤!",12,0);
}else
{
Show_Str(40,130,240,12,"拍照成功!",12,0);
Show_Str(40,150,240,12,"保存為:",12,0);
Show_Str(40+42,150,240,12,pname,12,0);
BEEP=1; //蜂鳴器短叫，提示拍照完成
delay_ms(100);
}
}else //提示SD卡錯誤
{
Show_Str(40,130,240,12,"SD卡錯誤!",12,0);
Show_Str(40,150,240,12,"拍照功能不可用!",12,0);
}
BEEP=0;//關閉蜂鳴器
LED1=1;//關閉DS1
delay_ms(1800);//等待1.8秒鐘
LCD_Clear(BLACK);
}else delay_ms(5);
if(sensor==OV7725)
OV7725_camera_refresh();//更新顯示
else if(sensor==OV7670)
OV7670_camera_refresh();//更新顯示
i++;
if(i>=40)//DS0閃爍.
{
i=0;
LED0=!LED0;
}
}
}

復制代碼

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