OV2640攝像頭和WIFI傳輸的STM32代碼(含新建工程步驟)

ID:330080 · 發表于 2018-5-15 01:05

V1_4(103R WiFi V1_2_1)完成：
1. 鼠標移植(內核注釋)；
2. SD卡驅動(片上SPI驅動)
3. FatFs移植

4.wifi SPI測試，修改片上SPI驅動，16位數據傳輸
5.完成固件下載，初始化時修正了中斷使能；
6.wifi模塊上電后可以下載固件，固件下載成功后再次下載提示不成功。

7.添加外中斷和定時器服務,并暫時移除固件數組

8.定時器暫未添加，轉而為USB固件代碼添加打印輸出信息(信息輸出添加在usb_core.c和usb_istr.c中)。

9.添加了Mass_Storage,將調試控制開關移到了usb_core.c中，增加了在MyBSP文件下的USB文件中，增加各種
USB設備類型的固件代碼,并將hw_config.c/h作為通用的共享文件，獨立放在hw_config文件夾下。

10.添加LCD驅動，添加OV模塊，添加BMP編解碼存儲顯示；在Nvic_Exit中新增加Rename_Pin.h，以方便端口拼寫。

新建工程步驟:

該文件內包含的是用戶的中斷處理入口程序，中斷入口函數是一個跨越BSP和用戶應用程序的模塊；同時包含了外設庫的配置裁剪頭文件。

部分主函數如下：

/**
******************************************************************************
* @file GPIO/IOToggle/main.c
* @author MCD Application Team
* @version V3.3.0
* @date 04/16/2010
* @brief Main program body.
******************************************************************************
* @copy
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>© COPYRIGHT 2010 STMicroelectronics</center></h2>
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include <stdio.h>
#include "usb_lib.h"
#include "hw_config.h"
#include "usb_pwr.h"
#include "MyBspInc.h"
#include "FATFS_008.h"
#include "OnChip_Driver_Inc.h"
#include "../BMP/BMP.h"
#include <stm32f10x.h>
#define sim900_rcc RCC_APB2Periph_GPIOB
#define sim900_gpio GPIOB
#define sim900_pin (GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_6)
#define led_rcc RCC_APB2Periph_GPIOA
#define led_gpio GPIOA
#define led_pin (GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7)
unsigned char str1[] = {"AT+RST\r\n"};
unsigned char str2[] = {"AT+CWMODE=3\r\n"};
unsigned char str3[] = {"AT+CWJAP=\"conan\",\"123456789\"\r\n"};
unsigned char str4[] = {"AT+CIPSTART=\"TCP\",\"192.168.191.1\",8989\r\n"};
unsigned char str5[] = {"AT+CIPSEND=16\r\n"};
unsigned char str6[] = {"AT+CIPSEND=5\r\n"};
unsigned char str7[] = {"AT+CIPMODE=1\r\n"};
unsigned char str8[] = {"AT+CIPSEND\r\n"};
void WIFI_Init()
{
USART_SendString(str2);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
USART_SendString(str1);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
USART_SendString(str3);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
Delay_nMS(1000);
USART_SendString(str4);
Delay_nMS(1000);
Delay_nMS(1000);
}
void init_gpio_func(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(sim900_rcc,ENABLE);
RCC_APB2PeriphClockCmd(led_rcc,ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = sim900_pin;
GPIO_Init(sim900_gpio, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = led_pin;
GPIO_Init(led_gpio, &GPIO_InitStructure);
}
void open_ov2640_3v3(void)
{
GPIO_SetBits(sim900_gpio, GPIO_Pin_6);
GPIO_ResetBits(sim900_gpio, GPIO_Pin_6);
//
}
extern unsigned char VsyncCnt; //場同步標志
//////////////////////////////
FATFS fs; // Work area (file system object) for logical drives
FRESULT res; // FatFs function common result code
//////////////////////////////
/** @addtogroup STM32F10x_StdPeriph_Examples
* @{
*/
/** @addtogroup GPIO_IOToggle
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
GPIO_InitTypeDef GPIO_InitStructure;
/* Private function prototypes -----------------------------------------------*/
void Delay(__IO uint32_t nCount);
extern u32 JpegDataCnt;
extern u8 JpegBuffer[10240];
extern u8 VsyncActive;
OV2640_IDTypeDef OV2640_Camera_ID;
extern void OV2640_AutoExposure(u8 level);
int main(void)
{
u16 i = 0;
///////////////Delay初始化//////////////////
Delay_Init(72);
////////////////////////////////////////////
///////////////USART1初始化/////////////////
USART1_Init(115200);
//USART2_Init(9600);
//delay_ms(1000);
WIFI_Init();
Delay_nMS(1000);
USART_SendString(str7);
Delay_nMS(1000);
USART_SendString(str8);
//init_gpio_func();
//open_ov2640_3v3();
OV2640_HW_Init(); //IIC初始化 //作用是在一段內存塊中填充某個特定的值
memset(&OV2640_Camera_ID,0x0,sizeof(OV2640_IDTypeDef)); //是對較大的結構體或數組進行清零操作的一種最快方法
OV2640_ReadID(&OV2640_Camera_ID); //讀取OV2640ID，測試硬件，依次為:0x7F,0xA2,0x26,0x42
OV2640_JPEGConfig(JPEG_320x240); //配置OV2640輸出320*240像素的JPG圖片
//設置自動曝光和白平衡
OV2640_BrightnessConfig(0x20);
OV2640_AutoExposure(2);
OV2640_CaptureGpioInit(); //數據采集引腳初始化
EXTI->IMR &= ~EXTI_Line8; //關閉場同步中斷
EXTI->EMR &= ~EXTI_Line8;
EXTI->IMR &= ~EXTI_Line15; //關閉像素同步中斷
EXTI->EMR &= ~EXTI_Line15;
Delay_nMS(10); //等待圖像輸出穩定
EXTI->IMR |= EXTI_Line8; //使能場同步中斷，準備下次采集
EXTI->EMR |= EXTI_Line8;
while(1)
{
if(VsyncActive == 2)
{
for(i = 0; i < JpegDataCnt; i ++)
{
USART_Transmit(JpegBuffer[i]);
}
JpegDataCnt = 0; //JPEG計數器清零
EXTI->IMR |= EXTI_Line8; //使能場同步中斷，準備下次采集
EXTI->EMR |= EXTI_Line8;
}
}
}
/**
* @brief Inserts a delay time.
* @param nCount: specifies the delay time length.
* @retval None
*/
void Delay(__IO uint32_t nCount)
{
for(; nCount != 0; nCount--);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/