ov7620图像采集程序

#include /* common defines and macros */

#include "derivative.h" /* derivative-specific definitions */

#include

#define ROW 30

#define COLUMN 70

unsigned char Image_Data[ROW][COLUMN];

unsigned char Point_C, VSYN_C=0, Line_Flag, m = 0,n=0;

unsigned int Line_C=0;

unsigned char Interval;

unsigned char THRESHOLD=0x20;

void Delay(int i)

{

int j;

for(j=0;j

{

_asm(nop);

}

}

void SetBusCLK_nM(byte nM)

{

MMCCTL1=0X00;

PKGCR =0X06;

DIRECT =0x00;

IVBR =0xFF;

ECLKCTL=0xC0;

CPMUPROT =0x26; //停止保护时钟配置寄存器

CPMUCLKS_PSTP=0; //

CPMUCLKS_PLLSEL=1; //应用PLL

//CPMUSYNR =nM-1; //设置分频因子

CPMUSYNR =0x40|(nM-1); //设置分频因子

CPMUREFDIV =0x80|0x00; //pllclock=2*(1+SYNR)= MHz;

CPMUPOSTDIV=0x00; // Set the post divider register

CPMUPOSTDIV=0x00; // Set the post divider register

CPMUPLL =0x10; // Set the PLL frequency modulation

while(CPMUFLG_LOCK == 0); /* Wait until the PLL is within the desired tolerance of the target frequency */

CPMUPROT=0x00; /* Enable protection of clock configuration registers */

}

void TIM_Init(void)

{

TIOS=0x00; //外部输入捕捉1,2 通道

TCTL4=0x24; //通道1上升沿触发,通道2 下降沿触发

TSCR1=0x80; //使能

TIE=0x06; //通道1,2 中断使能

TFLG1=0xFF; //清中断标志位

}

void IO_init(void)

{ // IO初始化函数DDRD = 0X00;

}

void SCI0_Init(void)

{

SCI0BD = 0X9C; //9600

SCI0CR1 = 0X00; /*normal,no parity*/ SCI0CR2 = 0X2C; //发送器，接收器使能

/*RIE=1,TE=1,RE=1, */

}

void SCI_Write(unsigned char SendChar)

{

while (!(SCI0SR1&0x80));

SCI0DRH=0;

SCI0DRL=SendChar;

}

void Process(void)

{

unsigned char i,j;

for(i=0;i

{

for(j=0;j

{

if(Image_Data[i][j]>THRESHOLD)

SCI_Write('1') ;

else SCI_Write('0') ;

}

// SCI_Write(0x0D);

// SCI_Write(0X0A);

}

}

void main(void) {

/* put your own code here */

/* uchar x,data; */

SetBusCLK_nM(24);

TIM_Init();

IO_init() ;

SCI0_Init();

EnableInterrupts;

for(;;) {

Process() ;

_FEED_COP(); /* feeds the dog */

} /* loop forever */

/* please make sure that you never leave main */ }

#pragma CODE_SEG NON_BANKED

interrupt 9 void HREF_Interrupt(void)

{

TFLG1_C1F = 1;

Line_Flag = 0;

m++; //每一个下降沿捕捉一次脉冲if ( m<12 || m>288 )

{

return;//判断是否从新的一场开始

}

/*if(m<=144) Interval=12;

else if(m>144&&m<=200) Interval=8;

else if(m>200&&m<=252) Interval=6;

else Interval=4; */

Interval=6;

if(m%Interval==0)

{

Delay(1);

Image_Data[Line_C][0] = PORTD;Image_Data[Line_C][1] = PORTD; Image_Data[Line_C][2] = PORTD;Image_Data[Line_C][3] = PORTD; Image_Data[Line_C][4] = PORTD;Image_Data[Line_C][5] = PORTD; Image_Data[Line_C][6] = PORTD;Image_Data[Line_C][7] = PORTD; Image_Data[Line_C][8] = PORTD;Image_Data[Line_C][9] = PORTD; Image_Data[Line_C][10] = PORTD;Image_Data[Line_C][11] = PORTD; Image_Data[Line_C][12] = PORTD;Image_Data[Line_C][13] = PORTD; Image_Data[Line_C][14] = PORTD;Image_Data[Line_C][15] = PORTD; Image_Data[Line_C][16] = PORTD;Image_Data[Line_C][17] = PORTD; Image_Data[Line_C][18] = PORTD;Image_Data[Line_C][19] = PORTD; Image_Data[Line_C][20] = PORTD;Image_Data[Line_C][21] = PORTD; Image_Data[Line_C][22] = PORTD;Image_Data[Line_C][23] = PORTD; Image_Data[Line_C][24] = PORTD;Image_Data[Line_C][25] = PORTD; Image_Data[Line_C][26] = PORTD;Image_Data[Line_C][27] = PORTD; Image_Data[Line_C][28] = PORTD;Image_Data[Line_C][29] = PORTD; Image_Data[Line_C][30] = PORTD;Image_Data[Line_C][31] = PORTD; Image_Data[Line_C][32] = PORTD;Image_Data[Line_C][33] = PORTD; Image_Data[Line_C][34] = PORTD;Image_Data[Line_C][35] = PORTD; Image_Data[Line_C][36] = PORTD;Image_Data[Line_C][37] = PORTD; Image_Data[Line_C][38] = PORTD;Image_Data[Line_C][39] = PORTD; Image_Data[Line_C][40] = PORTD;Image_Data[Line_C][41] = PORTD; Image_Data[Line_C][42] = PORTD;Image_Data[Line_C][43] = PORTD; Image_Data[Line_C][44] = PORTD;Image_Data[Line_C][45] = PORTD; Image_Data[Line_C][46] = PORTD;Image_Data[Line_C][47] = PORTD; Image_Data[Line_C][48] = PORTD;Image_Data[Line_C][49] = PORTD; Image_Data[Line_C][50] = PORTD;Image_Data[Line_C][51] = PORTD; Image_Data[Line_C][52] = PORTD;Image_Data[Line_C][53] = PORTD; Image_Data[Line_C][54] = PORTD;Image_Data[Line_C][55] = PORTD; Image_Data[Line_C][56] = PORTD;Image_Data[Line_C][57] = PORTD; Image_Data[Line_C][58] = PORTD;Image_Data[Line_C][59] = PORTD; Image_Data[Line_C][60] = PORTD;Image_Data[Line_C][61] = PORTD; Image_Data[Line_C][62] = PORTD;Image_Data[Line_C][63] = PORTD; Image_Data[Line_C][64] = PORTD;Image_Data[Line_C][65] = PORTD; Image_Data[Line_C][66] = PORTD;Image_Data[Line_C][67] = PORTD; Image_Data[Line_C][68] = PORTD;Image_Data[Line_C][69] = PORTD;

Line_C++;

}

if(Line_C==ROW)

{

TIE=0x04; //开场中断

return;

}

}

//场中断处理函数

#pragma CODE_SEG NON_BANKED

interrupt 10 void VSYN_Interrupt(void)

{

TFLG1_C1F=1; //

TFLG1_C2F=1; //清除场同步中断

Line_C=0; //初始化采集行的下标

Point_C = 0;

TIE=0x02 ; //进入一场后开行中断，关闭场中断}