譯文 張 / Mbed 2 deprecated BX-car

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Dependencies:   mbed

Fork of BX-car by Clark Lin

camera_api.cpp@1:82bc25a7b68b, 2014-06-03 (annotated)

Committer:
backman
Date:
Tue Jun 03 15:53:55 2014 +0000
Revision:
1:82bc25a7b68b
Parent:
0:68c173249c01
Child:
2:c51647d3c14d
cam_algroithm

Who changed what in which revision?

UserRevisionLine numberNew contents of line
backman 1:82bc25a7b68b 1 #include "mbed.h"
backman 1:82bc25a7b68b 2 #include "camera_api.h"
backman 1:82bc25a7b68b 3
backman 1:82bc25a7b68b 4 #define clk 2 //ms
backman 1:82bc25a7b68b 5
backman 1:82bc25a7b68b 6
backman 1:82bc25a7b68b 7 BX_camera::BX_camera(char cam){
backman 1:82bc25a7b68b 8
backman 1:82bc25a7b68b 9
backman 1:82bc25a7b68b 10 cam_clk= new DigitalOut(PTE1) ;
backman 1:82bc25a7b68b 11
backman 1:82bc25a7b68b 12 si = new DigitalOut(PTD7);
backman 1:82bc25a7b68b 13
backman 1:82bc25a7b68b 14 line_Cam = new FastAnalogIn(PTD5);
backman 1:82bc25a7b68b 15
backman 1:82bc25a7b68b 16
backman 1:82bc25a7b68b 17
backman 1:82bc25a7b68b 18
backman 1:82bc25a7b68b 19
backman 1:82bc25a7b68b 20
backman 1:82bc25a7b68b 21 }
backman 1:82bc25a7b68b 22
backman 1:82bc25a7b68b 23
backman 1:82bc25a7b68b 24 void BX_camera::read(void){
backman 1:82bc25a7b68b 25
backman 1:82bc25a7b68b 26
backman 1:82bc25a7b68b 27 w_f_v=0x0000;
backman 1:82bc25a7b68b 28 b_f_v=0xffff;
backman 1:82bc25a7b68b 29
backman 1:82bc25a7b68b 30
backman 1:82bc25a7b68b 31
backman 1:82bc25a7b68b 32 *si=1;
backman 1:82bc25a7b68b 33 *cam_clk=1;
backman 1:82bc25a7b68b 34
backman 1:82bc25a7b68b 35 wait_us(30); // tune here
backman 1:82bc25a7b68b 36 *si=0;
backman 1:82bc25a7b68b 37 *cam_clk=0;
backman 1:82bc25a7b68b 38
backman 1:82bc25a7b68b 39
backman 1:82bc25a7b68b 40
backman 1:82bc25a7b68b 41 line_Cam->enable();
backman 1:82bc25a7b68b 42
backman 1:82bc25a7b68b 43
backman 1:82bc25a7b68b 44 //input 128
backman 1:82bc25a7b68b 45
backman 1:82bc25a7b68b 46 for(int i=0;i<128;i++){
backman 1:82bc25a7b68b 47 *cam_clk=1;
backman 1:82bc25a7b68b 48 wait_us(5);
backman 1:82bc25a7b68b 49
backman 1:82bc25a7b68b 50
backman 1:82bc25a7b68b 51 line_image[i]=line_Cam->read_u16();
backman 1:82bc25a7b68b 52
backman 1:82bc25a7b68b 53
backman 1:82bc25a7b68b 54 // big small
backman 1:82bc25a7b68b 55 if(line_image[i] > w_f_v)
backman 1:82bc25a7b68b 56 w_f_v=line_image[i];
backman 1:82bc25a7b68b 57 else if(line_image[i] < b_f_v )
backman 1:82bc25a7b68b 58 b_f_v = line_image[i];
backman 1:82bc25a7b68b 59
backman 1:82bc25a7b68b 60
backman 1:82bc25a7b68b 61
backman 1:82bc25a7b68b 62
backman 1:82bc25a7b68b 63 *cam_clk=0;
backman 1:82bc25a7b68b 64 wait_us(5);
backman 1:82bc25a7b68b 65
backman 1:82bc25a7b68b 66
backman 1:82bc25a7b68b 67 }
backman 1:82bc25a7b68b 68
backman 1:82bc25a7b68b 69
backman 1:82bc25a7b68b 70 line_Cam->disable();
backman 1:82bc25a7b68b 71
backman 1:82bc25a7b68b 72
backman 1:82bc25a7b68b 73
backman 1:82bc25a7b68b 74 //filter
backman 1:82bc25a7b68b 75
backman 1:82bc25a7b68b 76 for(int i=0;i<128;i++){
backman 1:82bc25a7b68b 77
backman 1:82bc25a7b68b 78
backman 1:82bc25a7b68b 79 if( (line_image[i]-b_f_v) < (w_f_v - line_image[i] ) )
backman 1:82bc25a7b68b 80 sign_line_image[i]=' ';
backman 1:82bc25a7b68b 81 else
backman 1:82bc25a7b68b 82 sign_line_image[i]='O';
backman 1:82bc25a7b68b 83
backman 1:82bc25a7b68b 84 if(i==0)
backman 1:82bc25a7b68b 85 sign_line_image[i]='X';
backman 1:82bc25a7b68b 86
backman 1:82bc25a7b68b 87 }
backman 1:82bc25a7b68b 88
backman 1:82bc25a7b68b 89
backman 1:82bc25a7b68b 90
backman 1:82bc25a7b68b 91 }