1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/*
* mur.sat
*
* Somewhen in the year 2012, mur.at will have a nano satellite launched
* into a low earth orbit (310 km above the surface of our planet). The
* satellite itself is a TubeSat personal satellite kit, developed and
* launched by interorbital systems. mur.sat is a joint venture of mur.at,
* ESC im Labor and realraum.
*
* Please visit the project hompage at sat.mur.at for further information.
*
*
* Copyright (C) 2011 Christian Pointner <equinox@mur.at>
*
* This file is part of mur.sat.
*
* mur.sat is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* mur.sat is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with mur.sat. If not, see <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <stdio.h>
#include <termios.h>
#include <ctype.h>
char sign2bin(c)
{
switch(c) {
case 'D': return 0;
case '1': return 1;
case '2': return 2;
case '3': return 3;
case '4': return 4;
case '5': return 5;
case '6': return 6;
case '7': return 7;
case '8': return 8;
case '9': return 9;
case '0': return 10;
case '*': return 11;
case '#': return 12;
case 'A': return 13;
case 'B': return 14;
case 'C': return 15;
}
return 0;
}
char bin2sign(c)
{
switch(c) {
case 0: return 'D';
case 1: return '1';
case 2: return '2';
case 3: return '3';
case 4: return '4';
case 5: return '5';
case 6: return '6';
case 7: return '7';
case 8: return '8';
case 9: return '9';
case 10: return '0';
case 11: return '*';
case 12: return '#';
case 13: return 'A';
case 14: return 'B';
case 15: return 'C';
}
return 0;
}
void send_crx_string(c)
{
c = toupper(c);
if(c == '#' || c == '*' ||
(c >= '0' && c <= '9') ||
(c >= 'A' && c <= 'D') ) {
char cs = bin2sign(0x0A ^ sign2bin(c));
int ret = write(1, &"#42", 3);
ret = write(1, &c, 1);
ret = write(1, &cs, 1);
ret = write(1, &" ", 1);
}
}
int main (int argc, char *argv[])
{
struct termios T;
tcgetattr(0, &T);
T.c_lflag &= ~ECHO;
T.c_lflag &= ~ICANON;
tcsetattr(0, TCSANOW, &T);
char c;
for(;;) {
int ret = read(0, &c, 1);
if(!ret) break;
if(ret == 1) send_crx_string(c);
else {
perror("read error: ");
return 1;
}
}
return 0;
}
|
