stm32f407驱动山外鹰眼二值化摄像头

stm32f407芯片主程序：

#include "main.h"

uint8_t pic[OV7725_DATASIZE];

bool busy = false;

void ov7725_isr(void)

{

  uint8_t *ptr = (uint8_t*)&pic[0];

  if(!busy)

  {

    OV7725_GetImg(ptr);

    busy = true;

  }

}

int main(void)

{

  uint16_t i;

  GPIO_InitTypeDef GPIO_InitStruct;

  USART_InitTypeDef USART_InitStruct;

  //GPIO initialize

  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);

  GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_USART1);

  GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_USART1);

  GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;

  GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;

  GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;

  GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;

  GPIO_Init(GPIOA, &GPIO_InitStruct);

  //USART1 initialize

  RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

  USART_InitStruct.USART_BaudRate = 256000UL;

  USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;

  USART_InitStruct.USART_Mode = USART_Mode_Tx;

  USART_InitStruct.USART_Parity = USART_Parity_No;

  USART_InitStruct.USART_StopBits = USART_StopBits_1;

  USART_InitStruct.USART_WordLength = USART_WordLength_8b;

  USART_Init(USART1, &USART_InitStruct);

  USART_Cmd(USART1, ENABLE);

  printf("Hello, world!rn");

  if(OV7725_Init())

    printf("Camera init failedrn");

  else

  {

    OV7725_Callback_Install(ov7725_isr);

    //OV7725_Cmd(ENABLE);

    printf("Done!rn");

  }

  while(1)

  {

    if(busy)

    {

      putchar(0x01);

      putchar(0xFE);

      for(i = 0; i < OV7725_DATASIZE; i++)

        putchar(pic[i]);

      putchar(0xFE);

      putchar(0x01);

      busy = false;

    }

  }

}