1 | /** |
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2 | * ANELEX PRINTER Interface Microcontroller |
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3 | * |
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4 | * anelex.c: All communication related routines to the anelex device. |
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5 | * |
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6 | * This file is part of the Bull Anelex Project |
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7 | * Copyright (C) 2010, 2011 Sven Köppel, technikum29.de |
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8 | * |
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9 | * This program is free software; you can redistribute |
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10 | * it and/or modify it under the terms of the GNU General |
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11 | * Public License as published by the Free Software |
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12 | * Foundation; either version 3 of the License, or (at |
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13 | * your option) any later version. |
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14 | * |
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15 | * This program is distributed in the hope that it will |
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16 | * be useful, but WITHOUT ANY WARRANTY; without even the |
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17 | * implied warranty of MERCHANTABILITY or FITNESS FOR A |
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18 | * PARTICULAR PURPOSE. See the GNU General Public License |
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19 | * for more details. |
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20 | * |
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21 | * You should have received a copy of the GNU General |
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22 | * Public License along with this program; if not, see |
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23 | * <http://www.gnu.org/licenses/>. |
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24 | * |
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25 | **/ |
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26 | |
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27 | #include "toolchain.h" |
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28 | #include "anelex_code.h" |
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29 | #include "anelex.h" |
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30 | #include "constants.h" |
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31 | |
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32 | void print_line() { |
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33 | // startup line printing |
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34 | puts("Starting line transmission, waiting for CA"); |
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35 | current_line_cnt = 0; |
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36 | print_line_feed(); |
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37 | line_state = LINE_TRANSMITTING; |
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38 | } |
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39 | |
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40 | |
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41 | void print_line_feed() { |
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42 | // Lege Zeilenvorschub an (spaeter mal variabel) |
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43 | |
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44 | // Experiment: RESET vor jedem Zeilenvorschub |
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45 | // 18.02.11 |
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46 | /* |
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47 | start_reset(); |
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48 | _delay_us(10); |
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49 | stop_reset(); |
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50 | _delay_us(10); |
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51 | */ |
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52 | |
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53 | set_data(0x01); |
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54 | _delay_us(ANELEX_NEWLINE_WAIT); |
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55 | start_strobe(); |
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56 | _delay_us(ANELEX_NEWLINE_LENGTH); |
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57 | stop_strobe(); |
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58 | } |
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59 | |
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60 | |
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61 | ISR(INT2_vect) { |
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62 | // Communication Announcement steigende Flanke. |
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63 | // je nach zustand |
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64 | if(line_state != LINE_TRANSMITTING) |
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65 | return; |
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66 | |
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67 | uint8_t current_counter = current_line_cnt; // volatile lokal holen, spaeter unnoetig |
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68 | |
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69 | if(current_counter < LINE_LENGTH) { |
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70 | // aussage: Naechsetes Zeichen kann angelegt werden |
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71 | char orig = current_line[ current_counter ]; |
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72 | if(orig) { |
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73 | // normales zeichen |
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74 | char transformed = anelex_code[ orig ]; |
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75 | printf("%d: Zeichen %c, entspricht oktal %o\n", current_counter, orig, transformed); |
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76 | //printf("%d", current_counter, orig); |
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77 | putchar(orig); |
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78 | //_delay_us(100); |
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79 | |
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80 | // LEGE ZEICHEN AN: |
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81 | _delay_us(ANELEX_CHAR_WAIT); |
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82 | set_data(transformed); |
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83 | _delay_us(ANELEX_CHAR_STROBE_WAIT); |
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84 | start_strobe(); |
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85 | _delay_us(ANELEX_CHAR_STROBE_LENGTH); |
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86 | stop_strobe(); |
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87 | // jetzt bis zum naechsten Zeichen warten |
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88 | |
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89 | current_line_cnt++; |
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90 | return; |
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91 | } |
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92 | } |
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93 | |
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94 | // Zeilenende erreicht (etwa durch \0 oder zu grossen current_counter, |
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95 | // was nicht vorkommen sollte) |
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96 | line_state = LINE_PRINTING; |
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97 | set_data(0x01); // aufraeumen am DATENPORT |
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98 | printf("Print Command\n"); |
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99 | |
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100 | start_printcmd(); |
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101 | _delay_us(ANELEX_PRINT_CMD_LENGTH); |
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102 | stop_printcmd(); |
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103 | // warten auf auf das naechste CA. |
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104 | } |
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105 | |
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106 | ISR(INT1_vect) { |
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107 | // Rising Edge von Line Ready = Zeile wird gedruckt! |
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108 | if(line_state != LINE_PRINTING) |
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109 | return; |
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110 | |
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111 | printf("Zeile wird gedruckt...\n"); |
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112 | //puts("printing"); |
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113 | while(!is_ready()); // das ist jetzt ziemlicher ... quatsch |
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114 | puts("line finished"); |
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115 | printf("Zeile fertig gedruckt\n"); |
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116 | |
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117 | line_state = LINE_FINISHED; |
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118 | } |
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119 | |
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120 | |
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