智能车制作

标题: 摄像头采集问题 [打印本页]

作者: sunzhaoxing2012 时间: 2013-3-17 20:54
标题: 摄像头采集问题
摄像头采集来的图像，一行图像正确，再下一行图像就全黑，再一行正确，再一行错误，这样循环，试问我的程序错在哪了，跪求赐教。（不知怎么回事，图传不上去）
#include <hidef.h>
#include "derivative.h"
#include <MC9S12XS128.h>

#define row    40                         //定义图像采集行数：40行
#define column  130                         //定义图像采集列数：120列
#define  Interval 6                   //采集有效行数间隔
unsigned char Image_Data[row][column];       //图像数组
unsigned char image_number=0;                // 场数统计值
unsigned int row_number=0;                   // 行数统计值
unsigned int column_number=0;                // 列数统计值
unsigned char row_count = 0;

/*---------------------------------------------------
         总线频率设定
----------------------------------------------------*/
void SetBusCLK_88M(void)
{
CLKSEL=0X00;                         //disengage PLL to system
PLLCTL_PLLON=1;                      //turn on PLL
SYNR =0xc0 | 0x0a;
REFDV=0x80 | 0x01;
POSTDIV=0x00;                         //pllclock=2*osc*(1+SYNR)/(1+REFDV)=176MHz;
_asm(nop);                            //BUS CLOCK=88M
_asm(nop);
while(!(CRGFLG_LOCK==1));             //when pll is steady ,then use it;
CLKSEL_PLLSEL =1;                      //engage PLL to system;
}
/*-----------------------------------------------------
            TIM输入捕捉模块初始化
-------------------------------------------------------*/
void TIM_Init(void)
{
TIOS =0x00;                               //定时器通道0，1 为输入捕捉
TSCR1=0x80;                               //定时器使能
TCTL4=0x09;                               //通道0 捕捉上升沿通道1 捕捉下降沿
TIE=0x03;                                  //通道0，1 中断使能
TFLG1=0xFF;                               //清中断标志位
}
/*--------------------------------------------------------
            SCI0初始化函数
----------------------------------------------------------*/
void SCI0_Init()
{
SCI0BDL = 48;                               // 设定波特率为115200
SCI0CR1 = 0X00;
SCI0CR2 = 0X0C;
}
/*---------------------------------------------------
               串口发射端程序
-----------------------------------------------------*/
void SCI0_Transmit(void)
{
  byte temp;
  unsigned char i,j;
  temp = SCI0SR1;                         //清零
  SCI0DRH = 0;                            //高八位清零

  SCI0DRL = 0X00;                         //上位机数据头
  while (!(SCI0SR1&0x80));
  SCI0DRL = 0XFF;
  while (!(SCI0SR1&0x80));
  SCI0DRL = 0X01;
  while (!(SCI0SR1&0x80));
  SCI0DRL = 0X00;
  while (!(SCI0SR1&0x80));
  for(i = 0;i< row;i++)                      //发送数据
  {

for(j = 0;j < column ;j++)
{

   SCI0DRL =  Image_Data[i][j];
   while (!(SCI0SR1&0x80));
}
  }
}
/*-----------------------------------------------------
                  main
------------------------------------------------------*/
void main(void)
{
  DisableInterrupts;
  DDRA = 0X00;                               // PORTA为输入模式
  DDRB = 0xFF;                               // PORTB为输出模式
  PORTB= 0xFF;                               // PORTB用于标示
  SetBusCLK_88M();
  SCI0_Init();
  TIM_Init();
  EnableInterrupts;
  for(;;)
  {
  if(image_number==0)
  {
SCI0_Transmit();
EnableInterrupts;
PORTB = ~PORTB; //指示程序运行
  }

  }
}
//---------------------中断定义---------------------
      #pragma CODE_SEG NON_BANKED
/*-------------------------------------------------------
                  行中断处理函数
--------------------------------------------------------*/
interrupt 8 void HREF_Count(void)
{
  TFLG1_C0F = 1;
  row_count++;
if(image_number) {


  if(row_count%Interval==0)
  {

  for(column_number=0;column_number<130;column_number++)
  {
Image_Data[row_number][column_number] = PORTA;
  //  _asm(); _asm();
  }
  if(row_count==240) {
image_number=0;
DisableInterrupts;
  }
}

row_number++;
  }

}
/*---------------------------------------------------
         场中断处理函数
----------------------------------------------------*/
interrupt 9 void VSYN_Interrupt(void)
{
  TFLG1_C1F = 1;                                     //清场中断
  TFLG1_C0F = 1;                                     //清行中断

  row_number = 0;                                     //行计数器清零
  image_number=1;                                     //场标志位为一
}
#pragma CODE_SEG DEFAULT

作者: happyzn75 时间: 2013-5-28 19:49
88M 不会出错才怪

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