飞思卡尔智能车--摄像头资料4

#include       /* common defines and macros */
#include      /* derivative information */

#include"sample.h"
/*
 采集程序,行频四分频,如果全部采集将有73行.
 本程序丢掉8行,取其中64行,以方便后面的计算
 每九行丢一行,从一行丢
 行分辨率暂定为107点,0~106
 摄像头晶振换为:27M 声频率为76.22Hz
*/
extern unsigned char Image[64][107];
extern unsigned char line;
static unsigned Video_flag;

void Video_Init(void)
{
 HPRIO        = (unsigned char)(Virq & 0xff); //将IRQ优先级置为最高
 INTCR       |= INTCR_IRQE_MASK;        // Failing sensitive only
// INTCR       &=~INTCR_IRQEN_MASK;           // Disable IRQ
 INTCR_IRQEN=0;          //Disable IRQ interrupt

 PERH  |=0X01;                //PULL UP
 PUCR_PUPAE=1;               // PortA Pull up
 PIEH |=0X01;                //Enable Vsyn Interrupt
}