1 | '###############################################################################
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2 | 'Lüftersteuerung v1.0 @ P.K.er
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3 | '###############################################################################
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4 | $regfile = "m8def.dat"
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5 | $crystal = 8000000
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6 | $baud = 19200
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7 |
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8 |
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9 | 'ADC Config'####################################################################
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10 | Config Adc = Single , Prescaler = Auto , Reference = Avcc
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11 | Start Adc
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12 |
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13 |
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14 | 'Port Config'###################################################################
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15 | Config Portb.1 = Output 'fan1 PWM
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16 |
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17 | Config Portd.2 = Output 'fan2 PWM
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18 |
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19 | Config Pind.2 = Input 'fan1 INT
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20 | Portd.2 = 1
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21 |
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22 | Config Pind.3 = Input 'fan2 INT
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23 | Portd.3 = 1
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24 |
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25 |
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26 | 'Timer, PWM und Interupts##########################################
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27 | Config Timer0 = Timer , Prescale = 1024 'timer für zeit erfassung
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28 | On Timer0 Isr_timer0
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29 | Enable Timer0
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30 |
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31 | Config Timer1 = Pwm , Pwm = 8 , Compare A Pwm = Clear Up , Compare B Pwm = Clear Up , Prescale = 1 'timer für pwm lüfter
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32 |
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33 | Config Int0 = Falling
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34 | Config Int1 = Falling
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35 | On Int0 Isr_int0
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36 | On Int1 Isr_int1
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37 | Enable Int0
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38 | Enable Int1
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39 | Enable Interrupts
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40 |
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41 | 'Variablen für Drehzahlerfassung'##########################################################
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42 | Dim Rpm1 As Word
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43 | Dim Rpm2 As Word
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44 | Dim Rpm1_temp As Word
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45 | Dim Rpm2_temp As Word
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46 | Dim X As Byte
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47 | Dim Soft_timer As Byte
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48 | Dim Rpm_runden As Byte
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49 | Dim Rpm_runden1 As Word
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50 | Dim Rpm_runden2 As Word
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51 |
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52 | 'Variablen für Lüfterregelung'#######################################################
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53 | Dim Pwm01 As Single
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54 | Dim Pwm02 As Single
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55 | Dim Min_temp1 As Single
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56 | Dim Soll_temp1 As Single
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57 | Dim Min_temp2 As Single
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58 | Dim Soll_temp2 As Single
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59 |
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60 | 'CPU
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61 | Min_temp1 = 45 'unterer Temperaturwert
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62 |
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63 | Soll_temp1 = 50 'Oberer temperaturwert
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64 |
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65 | 'Umgebung
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66 | Min_temp2 = 30 'unterer Temperaturwert
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67 |
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68 | Soll_temp2 = 35 'Oberer temperaturwert
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69 |
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70 |
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71 |
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72 | 'Variablen für Temperaturmessung'###################################################
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73 | Dim Wert1 As Single
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74 | Dim Mittel_wert1 As Single
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75 | Dim Temp1 As Single
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76 | Dim Raw1 As Word
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77 | Dim Wert2 As Single
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78 | Dim Mittel_wert2 As Single
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79 | Dim Temp2 As Single
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80 | Dim Raw2 As Word
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81 |
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82 | Dim A As Byte
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83 | A = 0
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84 |
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85 | Dim Uref As Single 'Referencespannung
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86 | Uref = 5.12
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87 |
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88 |
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89 | 'Variablen für Ausgabe##########################################################
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90 | Dim Temp1_str As String * 5
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91 | Dim Temp2_str As String * 5
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92 | Dim Rpm1_str As Word
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93 | Dim Rpm2_str As Word
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94 | Dim Zeit As Byte
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95 | Dim Pwm01_str As Word
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96 | Dim Pwm02_str As Word
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97 |
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98 |
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99 | 'Hauptprogramm##################################################################
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100 | Do
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101 | Zeit = Zeit + 1
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102 |
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103 | 'Temperaturdaten holen##########################################################
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104 |
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105 | 'Temperatur in Grad = ((ADC x Avcc) / 1024) x 100) - 273.1
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106 |
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107 | Raw1 = Getadc(0)
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108 | Waitms 20
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109 | Temp1 = Raw1 * Uref
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110 | Temp1 = Temp1 / 1024
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111 | Temp1 = Temp1 * 100
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112 | Temp1 = Temp1 - 273.15
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113 |
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114 |
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115 | Raw2 = Getadc(1)
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116 | Waitms 20
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117 | Temp2 = Raw2 * Uref
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118 | Temp2 = Temp2 / 1024
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119 | Temp2 = Temp2 * 100
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120 | Temp2 = Temp2 - 273.15
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121 |
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122 | A = A + 1
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123 |
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124 | Mittel_wert1 = Mittel_wert1 + Temp1
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125 |
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126 | Mittel_wert2 = Mittel_wert2 + Temp2
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127 |
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128 | If A = 20 Then
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129 |
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130 | A = 0
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131 |
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132 | Wert1 = Mittel_wert1 / 20
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133 | Wert2 = Mittel_wert2 / 20
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134 |
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135 | Wert1 = Wert1 - 4
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136 | Wert2 = Wert2 - 4
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137 |
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138 | Mittel_wert1 = 0
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139 | Mittel_wert2 = 0
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140 |
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141 | Temp1_str = Fusing(wert1 , "#.#")
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142 |
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143 | Temp2_str = Fusing(wert2 , "#.#")
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144 |
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145 |
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146 | End If
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147 |
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148 | 'Lüfter regeln##################################################################
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149 |
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150 | Compare1a = 150
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151 | Compare1b = 150
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152 |
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153 | Wait 5
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154 |
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155 | Compare1a = 255
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156 | Compare1b = 255
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157 |
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158 | Wait 5
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159 |
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160 | 'Drehzahlerfassung##############################################################
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161 | If X = 1 Then
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162 | X = 0
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163 |
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164 | 'rpm werte runden
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165 | Rpm_runden1 = Rpm_runden1 + Rpm1
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166 | Rpm_runden2 = Rpm_runden2 + Rpm2
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167 |
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168 | Rpm_runden = Rpm_runden + 1
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169 |
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170 | If Rpm_runden = 5 Then
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171 |
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172 | Rpm1 = Rpm_runden1 / 5
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173 | Rpm2 = Rpm_runden2 / 5
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174 |
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175 | Rpm_runden1 = 0
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176 | Rpm_runden2 = 0
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177 |
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178 | Rpm_runden = 0
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179 |
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180 | 'rpm werte berechnen
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181 | Rpm1_str = Rpm1 * 30 'rpm * 30sek. (weil 2 imputse pro umdrehung)
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182 | Rpm2_str = Rpm2 * 30 'rpm * 30sek. (weil 2 imputse pro umdrehung)
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183 |
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184 | End If
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185 |
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186 | End If
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187 |
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188 |
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189 | 'Ausgabe über UART##############################################################
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190 | If Zeit = 20 Then
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191 |
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192 | Zeit = 0
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193 |
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194 | Pwm01_str = Pwm01 / 2.55
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195 | Pwm02_str = Pwm02 / 2.55
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196 |
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197 | Print "98765" 'Prüfnummer
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198 |
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199 | Waitms 50
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200 |
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201 | Print Rpm1_str
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202 |
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203 | Waitms 50
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204 |
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205 | Print Rpm2_str
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206 |
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207 | Waitms 50
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208 |
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209 | Print Pwm01_str
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210 |
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211 | Waitms 50
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212 |
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213 | Print Pwm02_str
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214 |
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215 | Waitms 50
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216 |
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217 | Print Temp1_str
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218 |
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219 | Waitms 50
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220 |
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221 | Print Temp2_str
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222 |
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223 | End If
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224 |
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225 | Loop
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226 |
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227 |
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228 | 'isr von timer0#################################################################
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229 | Isr_timer0: 'aller 1/30.5175 Sekunden
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230 |
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231 | Soft_timer = Soft_timer + 1
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232 |
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233 | If Soft_timer = 30 Then
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234 |
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235 | Rpm1 = Rpm1_temp
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236 | Rpm2 = Rpm2_temp
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237 |
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238 | Rpm1_temp = 0
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239 | Rpm2_temp = 0
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240 |
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241 | Soft_timer = 0
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242 | X = 1
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243 |
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244 | End If
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245 |
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246 | Return
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247 |
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248 |
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249 | 'isr von int0###################################################################
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250 | Isr_int0:
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251 |
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252 | Rpm1_temp = Rpm1_temp + 1
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253 |
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254 | Return
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255 |
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256 |
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257 | 'isr von int1###################################################################
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258 | Isr_int1:
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259 |
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260 | Rpm2_temp = Rpm2_temp + 1
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261 |
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262 | Return
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263 |
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264 | End
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