肯请大家帮帮我吧，就耽误您几分钟

cau · 发表于 2008-4-29 05:44:59

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>我毕设做的是CCD的路径识别，到了现在采集的程序还是调不成功。我是新手，对单片机了解较少。麻烦大家帮我看下编的这个图像采集程序。我用的是PT0捕捉行同步，PM口查询奇偶场同步信号跳变。#include <hidef.h>      /* common defines and macros */ #include <mc9s12dg128.h>     /* derivative information */ #pragma LINK_INFO DERIVATIVE "mc9s12dg128b"#define ROW_MAX 10 // number of rows needed to be sampled in each picture #define LINE_MAX 30 // number of points sampled in each row #define ROW_START 100 // begin to sample from line start #define ROW_END 320 // end flag of sampling #define INTERVAL 20 // interval between effective rows #define odd_even PTM_PTM4 // odd_even signal is sent into PortM_bit4 unsigned char image_data[ROW_MAX][LINE_MAX];//data array of picture unsigned char black_mid[ROW_MAX]; // 0ne-dimensional array unsigned char black_mid_temp[ROW_MAX]; unsigned char row; // x-position of the array unsigned char line; // y-position of the array unsigned int row_count; // row counter unsigned char line_sample; // used to counter in AD unsigned char row_image; unsigned char line_temp; // temperary variable used in data transfer unsigned char sample_data[LINE_MAX] ; // used to save one-dimension array got in interruption char oeflag;void Init_PLL(void){ REFDV=0x01; SYNR=0x04; // bus period=16Mhz*(SYNR+1)/(REFDV+1) while(!(CRGFLG&0x08)) {}   // 等待PLL稳定 CLKSEL=0x80;// open PLL }void Init_PORT(void){ DDRM_DDRM4=0;   // Port M4 function as odd_even signal input }void Init_ECT(void) { TIOS = 0x00; /*select all channels as input*/ TSCR1 = 0x80; /*timer enable*/ TSCR2 = 0x04; /*for 32M bus clock,set prescaler to 32.76ms*/ TCTL4=0x01; /* PT0 捕捉上升沿 */ TFLG1=0x01; /*clear C0F interrupt flag*/ DLYCT=0x03; /*delay 1024 bus clock to avoid disturb*/ TIE_C0I=0x01;   /*enable C0I interrupt*/ }void Init_AD(void){ ATD0CTL2=0xC0;// open AD, quick clear, no wait mode, inhibit outer awake, inhibit interrupt ATD0CTL3=0x08;// one transform in one sequence, No FIFO, contine to transform under freeze mode ATD0CTL4=0x81; // 8-bit precision, two clocks, ATDClock=[BusClock*0.5]/[PRS+1] ; PRS=1, divider=4 ;BusClock=40MHZ ATD0CTL5=0xA0; // right-algned unsigned，single channel，channel 0 ATD0DIEN=0x00; // inhibit digital input }#pragma CODE_SEG NON_BANKED void interrupt 8  ECT0_ISR(void){ TFLG1=0x01; /*clear C0F interrupt flag*/ row_count++; if((row_count>ROW_START)&&(row_count%INTERVAL==0)&&(row_image<ROW_MAX)){ Init_AD(); for(line_sample=0;line_sample<LINE_MAX;line_sample++){ while(!ATD0STAT1_CCF0); // WAIT FOR TRANSFORM TO END sample_data[line_sample]= ATD0DR0L; // A/D transfer } ATD0CTL2=0x00; /*关ATD*/ row_image++; } if((row_count>ROW_START)&&(row_count%INTERVAL==2)&&(row_image<ROW_MAX+1)){ for(line_temp=0;line_temp<LINE_MAX;line_temp++){ image_data[row_image-1][line_temp]=sample_data[line_temp];} } }#pragma CODE_SEG DEFAULT void main(void){ Init_PLL(); Init_PORT(); Init_ECT(); Init_AD(); for(;;){ if((odd_even==1)&&(oeflag==0)){ //even field transfers to odd field oeflag=1; row_count=0; row_image=0; EnableInterrupts; DisableInterrupts; } else{ if((odd_even==0)&&(oeflag==1)){ //odd field transfers to even field oeflag=0; } row_count=0; row_image=0; EnableInterrupts; DisableInterrupts; } } }

superyongzhe · 发表于 2008-4-30 00:27:47

建议你改变方案，图像采集虽然可以时候很多方案，但有的方案实际效果并不好。

qicai · 发表于 2010-2-8 11:15:44

这是一个难题哟

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