1 | #ifndef F_CPU
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2 | #warning "F_CPU war noch nicht definiert, wird nun nachgeholt mit 3686400"
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3 | #define F_CPU 3686400UL // Systemtakt in Hz - Definition als unsigned long beachten
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4 | #endif
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5 |
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6 | #include <stdbool.h>
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7 | #include <util/delay.h>
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8 |
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9 | int nReceiveTolerance = 60;
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10 | int nPulseLength = 350;
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11 | int nRepeatTransmit = 10;
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12 |
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13 | //Prototypes
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14 | void sendTriState(char*);
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15 | char* getCodeWordA(char const* nAddressCode, int nChannelCode, bool bStatus);
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16 | void switchOn(char const* nAddressCode, int nChannelCode);
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17 | void switchOff(char const* nAddressCode, int nChannelCode);
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18 | void transmit(int nHighPulses, int nLowPulses);
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19 | void send0(void);
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20 | void send1(void);
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21 | void sendT0(void);
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22 | void sendTF(void);
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23 | void sendT1(void);
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24 | void sendSync(void);
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25 | /**
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26 | * Switch a remote switch on (Type A with 10 pole DIP switches)
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27 | *
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28 | * @param sGroup Code of the switch group (refers to DIP switches 1..5 where "1" = on and "0" = off, if all DIP switches are on it's "11111")
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29 | * @param nChannelCode Number of the switch itself (1..4)
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30 | */
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31 | void switchOn(char const* sGroup, int nChannel) {
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32 | sendTriState( getCodeWordA(sGroup, nChannel, true) );
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33 | }
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34 |
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35 | /**
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36 | * Switch a remote switch off (Type A with 10 pole DIP switches)
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37 | *
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38 | * @param sGroup Code of the switch group (refers to DIP switches 1..5 where "1" = on and "0" = off, if all DIP switches are on it's "11111")
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39 | * @param nChannelCode Number of the switch itself (1..4)
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40 | */
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41 | void switchOff(char const* sGroup, int nChannel) {
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42 | sendTriState( getCodeWordA(sGroup, nChannel, false) );
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43 | }
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44 |
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45 | /**
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46 | * Like getCodeWord (Type A)
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47 | */
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48 | char* getCodeWordA(char const* sGroup, int nChannelCode, bool bStatus) {
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49 | int nReturnPos = 0;
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50 | static char sReturn[13];
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51 |
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52 | char const* code[6] = { "FFFFF", "0FFFF", "F0FFF", "FF0FF", "FFF0F", "FFFF0" };
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53 |
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54 | if (nChannelCode < 1 || nChannelCode > 5) {
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55 | return '\0';
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56 | }
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57 |
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58 | for (int i = 0; i<5; i++) {
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59 | if (sGroup[i] == '0') {
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60 | sReturn[nReturnPos++] = 'F';
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61 | } else if (sGroup[i] == '1') {
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62 | sReturn[nReturnPos++] = '0';
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63 | } else {
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64 | return '\0';
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65 | }
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66 | }
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67 |
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68 | for (int i = 0; i<5; i++) {
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69 | sReturn[nReturnPos++] = code[ nChannelCode ][i];
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70 | }
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71 |
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72 | if (bStatus) {
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73 | sReturn[nReturnPos++] = '0';
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74 | sReturn[nReturnPos++] = 'F';
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75 | } else {
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76 | sReturn[nReturnPos++] = 'F';
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77 | sReturn[nReturnPos++] = '0';
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78 | }
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79 | sReturn[nReturnPos] = '\0';
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80 |
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81 | return sReturn;
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82 | }
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83 |
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84 |
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85 |
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86 | /**
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87 | * Sends a Code Word
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88 | * @param sCodeWord /^[10FS]*$/ -> see getCodeWord
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89 | */
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90 | void sendTriState(char* sCodeWord) {
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91 | for (int nRepeat=0; nRepeat<nRepeatTransmit; nRepeat++) {
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92 | int i = 0;
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93 | while (sCodeWord[i] != '\0') {
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94 | switch(sCodeWord[i]) {
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95 | case '0':
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96 | sendT0();
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97 | break;
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98 | case 'F':
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99 | sendTF();
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100 | break;
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101 | case '1':
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102 | sendT1();
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103 | break;
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104 | }
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105 | i++;
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106 | }
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107 | sendSync();
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108 | }
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109 | }
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110 |
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111 | void transmit(int nHighPulses, int nLowPulses) {
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112 | PORTB = 0x01; //Pin anschalten
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113 | switch(nHighPulses)
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114 | {
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115 | case 1: _delay_us(350); break;
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116 | case 3: _delay_us(350*3); break;
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117 | }
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118 | PORTB = 0x00; //Pin ausschalten
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119 | switch(nLowPulses)
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120 | {
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121 | case 1: _delay_us(350); break;
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122 | case 3: _delay_us(350*3); break;
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123 | case 31: _delay_us(350*31); break;
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124 | }
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125 | }
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126 | /**
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127 | * Sends a "0" Bit
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128 | * _
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129 | * Waveform Protocol 1: | |___
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130 | * _
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131 | * Waveform Protocol 2: | |__
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132 | */
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133 | void send0() {
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134 | transmit(1,3);
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135 | }
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136 |
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137 | /**
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138 | * Sends a "1" Bit
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139 | * ___
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140 | * Waveform Protocol 1: | |_
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141 | * __
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142 | * Waveform Protocol 2: | |_
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143 | */
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144 | void send1() {
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145 | transmit(3,1);
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146 | }
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147 |
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148 |
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149 | /**
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150 | * Sends a Tri-State "0" Bit
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151 | * _ _
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152 | * Waveform: | |___| |___
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153 | */
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154 | void sendT0() {
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155 | transmit(1,3);
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156 | transmit(1,3);
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157 | }
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158 |
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159 | /**
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160 | * Sends a Tri-State "1" Bit
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161 | * ___ ___
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162 | * Waveform: | |_| |_
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163 | */
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164 | void sendT1() {
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165 | transmit(3,1);
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166 | transmit(3,1);
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167 | }
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168 |
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169 | /**
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170 | * Sends a Tri-State "F" Bit
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171 | * _ ___
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172 | * Waveform: | |___| |_
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173 | */
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174 | void sendTF() {
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175 | transmit(1,3);
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176 | transmit(3,1);
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177 | }
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178 |
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179 | /**
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180 | * Sends a "Sync" Bit
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181 | * _
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182 | * Waveform Protocol 1: | |_______________________________
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183 | * _
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184 | * Waveform Protocol 2: | |__________
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185 | */
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186 | void sendSync() {
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187 | transmit(1,31);
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188 | }
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