STM32F407+LWIP+OV2640攝像頭+DCMI+SRAM源碼

ID:274882 · 發表于 2018-1-11 22:15

采用STM407實現攝像頭OV2640獲取圖片數據，通過TCP網絡上傳顯示。圖片最大分辨率1600*1200，這個分辨率下大概能實現每秒1~2幀左右的傳輸，速度還可以.原始工程文件，配合BOOTLOAD應用，如果不用BOOTLOAD，可以修改起始地址，直接下載應用。

單片機源程序如下:

/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup Template_Project
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
extern void vTestUartSend(void);
extern void LwIP_Periodic_Handle(__IO uint32_t localtime);
u32 u32_mark_debug = 0;
extern __IO uint32_t LocalTime;
extern unsigned char gu8NetRecMark;
extern void fudp_init(void);
extern void LwIP_Init(void);
extern void vDcmiDataInit(void);
extern void frame_deal(void);
extern void LwIP_Periodic_Handle(__IO uint32_t localtime);
extern void vDcmi_Set_Start(void);
extern void init_sysparameter_set(void);
extern void vNetTimeTask(void);
//extern static void SystemInit_ExtMemCtl(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
System_Setup();
init_sysparameter_set();
while(OV2640_Init())
{
Delay(200);
}
LwIP_Init();
fudp_init();
//vDcmiDataInit();
/* Infinite loop */
//vDcmi_Set_Start();//STM32F40_41xxx1
//SystemInit_ExtMemCtl();
while (1)
{
vPictureEndDeal();
vCmdUartDeal();
Led_Status_Handle();
vNetTimeTask();
frame_deal();
LwIP_Periodic_Handle(LocalTime);
}
}
/**
* @brief Inserts a delay time.
* @param nTime: specifies the delay time length, in milliseconds.
* @retval None
*/
void Delay(uint32_t nTime)
{
uint32_t u32TimePara = LocalTime + nTime;
while(u32TimePara>LocalTime);
}
void Led_Status_Handle(void)
{
u32_mark_debug++;
if((u32_mark_debug>1000000)&&(u32_mark_debug<2000000))
{
GPIO_SetBits(GPIOB,GPIO_Pin_12);//
GPIO_ResetBits(GPIOB,GPIO_Pin_13);//
u32_mark_debug = 3000000;
//delay_us(500);
//vTestUartSend();
}
else if((u32_mark_debug>4000000)&&(u32_mark_debug<5000000)){
GPIO_SetBits(GPIOB,GPIO_Pin_13);//復位結束
GPIO_ResetBits(GPIOB,GPIO_Pin_12);//
u32_mark_debug = 0;
/* Write the descriptor through the endpoint */
//USB_SIL_Write(EP1_IN, (uint8_t*) u8_lin, 2);
}
}
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/