OV7670_FIFO图像采集出来是斜线

1楼-- · 2020-02-02 14:42

#include "STC_NEW_8051.h"
#include "sccb.h"
#include "delay.h"
#include <intrins.h>

#define WIDTH    320
#define HEIGHT 240

#define RELOAD_COUNT  0xfd //11.0592MHz,12T,SMOD=0,9600bps

//FIFO control lines
sbit FIFO_WR=P2^3;
sbit FIFO_WRST=P2^0;
sbit FIFO_RCK=P2^2;
sbit FIFO_RRST=P2^1;
sbit FIFO_OE=P2^4;
sbit FIFO_RE=P2^5;
sbit VSYNC  =  P0^3;
bit read_flag=0;

unsigned char ch;
unsigned char xdata pic[320];

void serial_port_one_initial()
{

SCON = 0x50; //0101,0000 8位可变波特率，无奇偶校验位

BRT = RELOAD_COUNT;
                     //  BRTR = 1, S1BRS = 1, EXTRAM = 1 ENABLE EXTRAM
AUXR = 0x11; // T0x12,T1x12,UART_M0x6,BRTR,S2SMOD,BRTx12,EXTRAM,S1BRS
AUXR1 = 0x80;
ES    = 1; //允许串口中断
EA    = 1; //开总中断

}

void send_UART_one(unsigned char i)
{
ES    = 0;  //关串口中断
TI    = 0;  //清零串口发送完成中断请求标志
SBUF = i;
while(TI ==0); //等待发送完成
TI    = 0;  //清零串口发送完成中断请求标志
ES    = 1;  //允许串口中断
}

void main(void)
{
unsigned int i,j,k;
P2M1= 0xFF;
P2M0 =0x00;
P0M1 = 0x1C;
P0M0 = 0x00;
serial_port_one_initial();

sccb_senddata(0x12,0x80);
DelayMs(20);
   sccb_senddata(0x11,0x1f); //sccb_senddata(0x11,0x03),设置成0x1f也完全OK;
sccb_senddata(0x3a, 0x04);
sccb_senddata(0x12, 0x11);
sccb_senddata(0x17, 0x16);
sccb_senddata(0x18, 0x04);
sccb_senddata(0x32, 0x80);
sccb_senddata(0x19, 0x02);
sccb_senddata(0x1a, 0x7a);
sccb_senddata(0x03, 0x0a);
sccb_senddata(0x0c, 0x00);
sccb_senddata(0x3e, 0x00);
sccb_senddata(0x70, 0x3a);                            //sccb_senddata(0x70, 0x3a);
sccb_senddata(0x71, 0x35);                            //sccb_senddata(0x71, 0x35);    //sccb_senddata(0x71, 0x35);
sccb_senddata( 0x72, 0x11);
sccb_senddata( 0x73, 0xf0);
sccb_senddata( 0xa2, 0x02);
sccb_senddata(0x13, 0xe0);
sccb_senddata( 0x00, 0x00);
sccb_senddata( 0x10, 0x00);
sccb_senddata( 0x0d, 0x40);
sccb_senddata( 0x14, 0x38);
sccb_senddata( 0xa5 ,0x05);
sccb_senddata( 0xab, 0x07);
sccb_senddata( 0x24, 0x95);
sccb_senddata(0x25, 0x33);
sccb_senddata( 0x26, 0xe3);
sccb_senddata( 0x9f, 0x78);
sccb_senddata( 0xa0, 0x68);
sccb_senddata( 0xa1, 0x0b);
sccb_senddata(0xa6, 0xd8);
sccb_senddata(0xa7, 0xd8);
sccb_senddata(0xa8, 0xf0);
sccb_senddata(0xa9, 0x90);
sccb_senddata(0xaa, 0x94);
sccb_senddata(0x13, 0xe5);
sccb_senddata(0x0e, 0x61);
sccb_senddata(0x0f, 0x4b);
sccb_senddata(0x16, 0x02);
sccb_senddata(0x1e, 0x07 );
sccb_senddata(0x21, 0x02);
sccb_senddata(0x22, 0x91);
sccb_senddata(0x29, 0x07);
sccb_senddata(0x33, 0x0b);// ;03
sccb_senddata(0x35, 0x0b);
sccb_senddata(0x37, 0x1d);// ;1c
sccb_senddata(0x38, 0x71);
sccb_senddata(0x39, 0x2a);
sccb_senddata(0x3c, 0x78);
sccb_senddata(0x3d, 0x08);
sccb_senddata(0x41, 0x3a);
sccb_senddata(0x4d, 0x40);
sccb_senddata(0x4e, 0x20);
sccb_senddata(0x69, 0x00);// ;55
sccb_senddata(0x6b, 0x4a);
sccb_senddata(0x74, 0x19);
sccb_senddata(0x76, 0x61);
sccb_senddata(0x8d, 0x4f);
sccb_senddata(0x8e, 0x00);
sccb_senddata(0x8f, 0x00);
sccb_senddata(0x90, 0x00);
sccb_senddata(0x91, 0x00);
sccb_senddata(0x96,0x00);
sccb_senddata(0x9a, 0x80);
sccb_senddata(0xb0, 0x84 );//;8c
sccb_senddata(0xb1, 0x0c);
sccb_senddata(0xb2, 0x0e);
sccb_senddata(0xb3, 0x82);
sccb_senddata(0xb8, 0x0a);
sccb_senddata(0x43, 0x14);
sccb_senddata(0x44, 0xf0);
sccb_senddata(0x45, 0x34);
sccb_senddata(0x46, 0x58);
sccb_senddata(0x47, 0x28);
sccb_senddata(0x48, 0x3a);
sccb_senddata(0x59, 0x88);
sccb_senddata(0x5a, 0x88);
sccb_senddata(0x5b, 0x44);
sccb_senddata(0x5c, 0x67);
sccb_senddata(0x5d, 0x49);
sccb_senddata(0x5e, 0x0e);
sccb_senddata(0x6c, 0x0a);
sccb_senddata(0x6d, 0x55);
sccb_senddata(0x6e, 0x11);
sccb_senddata(0x6f, 0x9f);
sccb_senddata(0x6a, 0x40);
sccb_senddata(0x01, 0x40);
sccb_senddata(0x02, 0x40);
sccb_senddata(0x13, 0xe7);
sccb_senddata(0x34, 0x11);
sccb_senddata(0x3b,0x02);
sccb_senddata(0xa4, 0x88);
sccb_senddata(0x96 ,0x00);
sccb_senddata(0x97, 0x30);
sccb_senddata(0x98, 0x20);
sccb_senddata(0x99, 0x20);
sccb_senddata(0x9a, 0x84);
sccb_senddata(0x9b, 0x29);
sccb_senddata(0x9c, 0x03);
sccb_senddata(0x9d, 0x4c);
sccb_senddata(0x9e, 0x3f);
sccb_senddata(0x78, 0x04);
sccb_senddata(0x79, 0x01);
sccb_senddata(0xc8, 0xf0);
sccb_senddata(0x79, 0x0f);
sccb_senddata(0xc8, 0x00 );//;20
sccb_senddata(0x79, 0x10);
sccb_senddata(0xc8, 0x7e);
sccb_senddata(0x79, 0x0a);
sccb_senddata(0xc8, 0x80);
sccb_senddata(0x79, 0x0b);
sccb_senddata(0xc8, 0x01);
sccb_senddata(0x79, 0x0c);
sccb_senddata(0xc8, 0x0f);// ;07
sccb_senddata(0x79, 0x0d);
sccb_senddata(0xc8, 0x20);
sccb_senddata(0x79, 0x09);
sccb_senddata(0xc8, 0x80);
sccb_senddata(0x79, 0x02);
sccb_senddata(0xc8, 0xc0);
sccb_senddata(0x79, 0x03);
sccb_senddata(0xc8, 0x40);
sccb_senddata(0x79, 0x05);
sccb_senddata(0xc8, 0x30);
sccb_senddata(0x79, 0x26);

while(1)
{
if(read_flag==1)
{
read_flag=0;
if(ch=='R')
{

   EA = 0;
         if(VSYNC)
                  {
   FIFO_WRST=0;
            DelayUs2x(5);
            FIFO_WRST=1;
            FIFO_WR=1;
   }
         while(!VSYNC);
   FIFO_WR=0;
                     FIFO_RRST=0;             //reset the read address

         FIFO_RCK=0;                //at least one RCK clock is needed to make sure

         FIFO_RCK=1;

         FIFO_RCK=0;

         FIFO_RCK=1;

                  FIFO_RRST=1;
         FIFO_OE=1;

         FIFO_OE=0;

   for(i = 0; i < 240; i ++) //QVGA format,240 lines;320dots every line
         {
            FIFO_RE=0;

      for(j = 0; j <320; j ++)
      {
FIFO_RCK=0;


pic[j]=P1;

FIFO_RCK=1;

   }
      FIFO_RE=1;
      for(j = 0; j <320; j ++)
      {
         send_UART_one(pic[j]);
      }
      }

                  FIFO_OE=1;
         FIFO_WR=0;
                  EA=1;


}
}

}

}

void UART_one_Interrupt_Receive(void) interrupt 4
{
if(RI)
{
      RI  = 0;
      ch = SBUF;
   read_flag=1;
}
else
{
      TI  =  0;
}
}