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annotate src/adc_lightsensor.asm @ 220:effd7259f5a5

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make button sensitivity configurable (cR hardware)
author heinrichsweikamp
date Mon, 05 Jan 2015 14:41:23 +0100
parents 8fbd8c5ac51f
children 23311219dacc
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1 ;=============================================================================
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2 ;
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3 ; File adc.asm
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4 ;
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5 ;
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6 ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved.
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7 ;=============================================================================
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8 ; HISTORY
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9 ; 2011-08-08 : [mH] moving from OSTC code
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10
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11 #include "ostc3.inc"
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12 #include "math.inc"
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13 #include "wait.inc"
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14 #include "eeprom_rs232.inc"
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15 #include "i2c.inc"
0
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16
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17 sensors CODE
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18
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19 wait_adc:
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20 movwf ADCON0
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21 nop
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22 bsf ADCON0,1 ; start ADC
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23 wait_adc2:
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24 btfsc ADCON0,1 ; Wait...
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25 bra wait_adc2
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26 return
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27
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28 global get_battery_voltage
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29 get_battery_voltage: ; starts ADC and waits until fnished
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30 btfss cr_hardware
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31 bra get_battery_voltage1 ; Normal ostc3 hardware
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32
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33 call lt2942_get_accumulated_charge
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34 call lt2942_get_voltage
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35
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36 btfsc divemode
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37 return ; Not in divemode
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38
207
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39 bcf cv_active
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40 bcf cc_active
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41 bcf LEDr
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42 bcf TRISJ,2 ; Chrg-Out output
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43 bsf CHRG_OUT
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44
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45 btfss CHRG_IN
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46 bra charge_cc_active
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47
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48 bcf CHRG_OUT
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49 bsf TRISJ,2 ; Chrg-Out high impedance
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50
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51 WAITMS d'1'
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52
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53 btfsc CHRG_IN
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54 return
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55 ;cv_active:
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56 decfsz safety_stop_countdown,F
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57 return
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58 bsf cc_active
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59 bsf cv_active
120
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60 bsf LEDr ; Indicate charging
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61 call lt2942_charge_done ; Reset accumulating registers to 0xFFFF
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62 WAITMS d'10'
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63 bcf LEDr ; Indicate charging
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64 bsf safety_stop_countdown,0 ; =1
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65 return
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66
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67 charge_cc_active:
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68 bsf cc_active
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69 bsf LEDr ; Indicate charging
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70 bcf CHRG_OUT
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71 bsf TRISJ,2 ; Chrg-Out high impedance
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72 movlw .5
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73 movwf safety_stop_countdown
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74 return
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75
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76 get_battery_voltage1:
0
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77 bsf adc_running ; =1: The ADC is in use
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78 movlw b'00100000' ; 2.048V Vref+ -> 1LSB = 500µV
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79 movwf ADCON1
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80 movlw b'00011001' ; power on ADC, select AN6
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81 rcall wait_adc
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82
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83 movff ADRESH,batt_voltage+1 ; store value
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84 movff ADRESL,batt_voltage+0 ; store value
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85 bcf ADCON0,0 ; power off ADC
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86
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87 ; Multiply with 2,006 to be excact here...
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88 ; bcf STATUS,C
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89 ; rlcf xA+0,F
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90 ;
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91 ; rlcf xA+1,F ; x2
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92
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93 ; movff xA+0,batt_voltage+0 ; store value
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94 ; movff xA+1,batt_voltage+1
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95
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96 movlw LOW lithium_36v_low
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97 movwf sub_a+0
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98 movlw HIGH lithium_36v_low
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99 movwf sub_a+1
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100 movff batt_voltage+0,sub_b+0
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101 movff batt_voltage+1,sub_b+1
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102 call subU16 ; sub_c = sub_a - sub_b
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103 ; Battery is 3,6V (>lithium_36v_low?)
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104 btfss neg_flag
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105 bra get_battery_voltage4 ; No, use 1,5V
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106
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107 bsf battery_is_36v ; Yes, set flag (Cleared in power-on reset only!)
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108
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109 ; Check if the battery is near-dead already
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110 movlw LOW lithium_36v_empty
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111 movwf sub_a+0
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112 movlw HIGH lithium_36v_empty
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113 movwf sub_a+1
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114 call subU16 ; sub_c = sub_a - sub_b
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115 ; Battery is not dead yet (>lithium_36v_empty?)
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116 btfsc neg_flag
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117 bra get_battery_voltage2 ; Yes, battery is still ok
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118
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119 ; Battery is probably dead very soon
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120 ; Set ">=24Ah used" into battery gauge registers
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121 movlw .128
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122 movff WREG,battery_gauge+5
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123
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124 get_battery_voltage2:
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125 ; Use 3,6V battery gauging mode
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126 movff battery_gauge+5,xC+3
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127 movff battery_gauge+4,xC+2
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128 movff battery_gauge+3,xC+1
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129 movff battery_gauge+2,xC+0
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130 ; battery_gauge:6 is nAs
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131 ; devide through 65536
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132 ; devide through 364
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133 ; Result is in percent of a 2,4Ah Battery
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134 movlw LOW .364
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135 movwf xB+0
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136 movlw HIGH .364
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137 movwf xB+1
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138 call div32x16 ; xC:4 / xB:2 = xC+3:xC+2 with xC+1:xC+0 as remainder
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139 movff xC+0,lo
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140 ; Limit to 100
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141 movlw .100
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142 cpfslt lo
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143 movwf lo
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144 ; lo will be between 0 (Full) and 100 (empty)
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145 movf lo,W
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146 sublw .100
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147 movwf lo
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148 get_battery_voltage3:
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149 movlw .100
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150 cpfslt lo
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151 movwf lo
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152 ; lo will be between 100 (Full) and 0 (empty)
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153
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154 ; use 3,6V battery sensing based on 50mA load
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155 ; 75%
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156 movff batt_voltage+0,sub_b+0
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157 movff batt_voltage+1,sub_b+1
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158 movlw LOW lithium_36v_75
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159 movwf sub_a+0
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160 movlw HIGH lithium_36v_75
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161 movwf sub_a+1
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162 call subU16 ; sub_c = sub_a - sub_b
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163 btfsc neg_flag
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164 bra get_battery_voltage3a
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165 movlw .75
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166 movwf lo
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167 get_battery_voltage3a:
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168 ; 50%
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169 movlw LOW lithium_36v_50
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170 movwf sub_a+0
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171 movlw HIGH lithium_36v_50
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172 movwf sub_a+1
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173 call subU16 ; sub_c = sub_a - sub_b
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174 btfsc neg_flag
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175 bra get_battery_voltage3b
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176 movlw .50
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177 movwf lo
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178 get_battery_voltage3b:
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179 ; 25%
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180 movlw LOW lithium_36v_25
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181 movwf sub_a+0
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182 movlw HIGH lithium_36v_25
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183 movwf sub_a+1
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184 call subU16 ; sub_c = sub_a - sub_b
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185 btfsc neg_flag
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186 bra get_battery_voltage3c
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187 movlw .25
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188 movwf lo
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189 get_battery_voltage3c:
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190 ; 10%
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191 movlw LOW lithium_36v_10
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192 movwf sub_a+0
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193 movlw HIGH lithium_36v_10
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194 movwf sub_a+1
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195 call subU16 ; sub_c = sub_a - sub_b
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196 btfsc neg_flag
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197 bra get_battery_voltage3d
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198 movlw .10
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199 movwf lo
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200 get_battery_voltage3d:
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201 movlw .100
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202 cpfslt lo
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203 movwf lo
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204 ; lo will be between 100 (Full) and 0 (empty)
0
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205 movf batt_percent,W
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206 cpfsgt lo ; keep batt_percent on the lowest value found
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207 movff lo,batt_percent ; store value
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208 ; btfsc battery_is_36v ; but always use computed value for 3,6V battery
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209 ; movff lo,batt_percent ; store value
0
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210 bcf adc_running ; =1: The ADC is in use
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211 return
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212
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213 get_battery_voltage4:
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214 ; Use 1,5V battery voltage mode
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215 ; Use approximation (batt_voltage:2-aa_15v_low)/4 = lo
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216 movff batt_voltage+0,sub_a+0
heinrichsweikamp
parents:
diff changeset
217 movff batt_voltage+1,sub_a+1
heinrichsweikamp
parents:
diff changeset
218 movlw LOW aa_15v_low
heinrichsweikamp
parents:
diff changeset
219 movwf sub_b+0
heinrichsweikamp
parents:
diff changeset
220 movlw HIGH aa_15v_low
heinrichsweikamp
parents:
diff changeset
221 movwf sub_b+1
heinrichsweikamp
parents:
diff changeset
222 call subU16 ; sub_c = sub_a - sub_b
heinrichsweikamp
parents:
diff changeset
223 bcf STATUS,C
heinrichsweikamp
parents:
diff changeset
224 rrcf sub_c+1
heinrichsweikamp
parents:
diff changeset
225 rrcf sub_c+0 ; /2
heinrichsweikamp
parents:
diff changeset
226 bcf STATUS,C
heinrichsweikamp
parents:
diff changeset
227 rrcf sub_c+1
heinrichsweikamp
parents:
diff changeset
228 rrcf sub_c+0 ; /4
heinrichsweikamp
parents:
diff changeset
229 movff sub_c+0,lo
44
18fe4e668baa BUGFIX: Percent display with 1,5V batteries
heinrichsweikamp
parents: 37
diff changeset
230 bra get_battery_voltage3d ; Check limits and return
0
heinrichsweikamp
parents:
diff changeset
231
heinrichsweikamp
parents:
diff changeset
232 global get_ambient_level
heinrichsweikamp
parents:
diff changeset
233 get_ambient_level: ; starts ADC and waits until finished
heinrichsweikamp
parents:
diff changeset
234 btfsc adc_running ; ADC in use?
heinrichsweikamp
parents:
diff changeset
235 return ; Yes, return
heinrichsweikamp
parents:
diff changeset
236
200
dcd513840c6c cleanup
heinrichsweikamp
parents: 196
diff changeset
237 btfss cr_hardware
113
heinrichsweikamp
parents: 44
diff changeset
238 bra get_ambient_level1 ; Normal ostc3 hardware
203
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
239
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
240 banksel isr_backup ; Back to Bank0 ISR data
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
241 movff opt_brightness,isr1_temp
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
242 incf isr1_temp,F ; adjust 0-2 to 1-3
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
243 movlw ambient_light_max_high_cr; cR hardware brightest setting
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
244 dcfsnz isr1_temp,F
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
245 movlw ambient_light_max_eco ; brightest setting
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
246 dcfsnz isr1_temp,F
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
247 movlw ambient_light_max_medium; brightest setting
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
248
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
249 movff WREG,ambient_light+0 ; Set to max.
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
250 movff ambient_light+0,max_CCPR1L ; Store value for dimming in TMR7 interrupt
dd9b167e82dc 1.64 (Fix ambient light for cR)
heinrichsweikamp
parents: 201
diff changeset
251 return
113
heinrichsweikamp
parents: 44
diff changeset
252
heinrichsweikamp
parents: 44
diff changeset
253 get_ambient_level1:
0
heinrichsweikamp
parents:
diff changeset
254 movlw b'00000000' ; Vref+ = Vdd
heinrichsweikamp
parents:
diff changeset
255 movwf ADCON1
heinrichsweikamp
parents:
diff changeset
256 movlw b'00011101' ; power on ADC, select AN7
heinrichsweikamp
parents:
diff changeset
257 rcall wait_adc
heinrichsweikamp
parents:
diff changeset
258
heinrichsweikamp
parents:
diff changeset
259 movff ADRESH,ambient_light+1
heinrichsweikamp
parents:
diff changeset
260 movff ADRESL,ambient_light+0
heinrichsweikamp
parents:
diff changeset
261 bcf ADCON0,0 ; power off ADC
heinrichsweikamp
parents:
diff changeset
262
heinrichsweikamp
parents:
diff changeset
263 ; ambient_light:2 is between 4096 (direct sunlight) and about 200 (darkness)
heinrichsweikamp
parents:
diff changeset
264 ; First: Devide through 16
heinrichsweikamp
parents:
diff changeset
265 bcf STATUS,C
heinrichsweikamp
parents:
diff changeset
266 rrcf ambient_light+1
heinrichsweikamp
parents:
diff changeset
267 rrcf ambient_light+0
heinrichsweikamp
parents:
diff changeset
268 bcf STATUS,C
heinrichsweikamp
parents:
diff changeset
269 rrcf ambient_light+1
heinrichsweikamp
parents:
diff changeset
270 rrcf ambient_light+0
heinrichsweikamp
parents:
diff changeset
271 bcf STATUS,C
heinrichsweikamp
parents:
diff changeset
272 rrcf ambient_light+1
heinrichsweikamp
parents:
diff changeset
273 rrcf ambient_light+0
heinrichsweikamp
parents:
diff changeset
274 bcf STATUS,C
heinrichsweikamp
parents:
diff changeset
275 rrcf ambient_light+1
heinrichsweikamp
parents:
diff changeset
276 rrcf ambient_light+0
heinrichsweikamp
parents:
diff changeset
277 ; Result: ambient_light:2/16
heinrichsweikamp
parents:
diff changeset
278 ; Now, make sure to have value between ambient_light_low and ambient_light_max
heinrichsweikamp
parents:
diff changeset
279
heinrichsweikamp
parents:
diff changeset
280 movlw .254
heinrichsweikamp
parents:
diff changeset
281 tstfsz ambient_light+1 ; >255?
heinrichsweikamp
parents:
diff changeset
282 movwf ambient_light+0 ; avoid ADC clipping
heinrichsweikamp
parents:
diff changeset
283
heinrichsweikamp
parents:
diff changeset
284 incfsz ambient_light+0,W ; =255?
heinrichsweikamp
parents:
diff changeset
285 bra get_ambient_level2 ; No, continue
heinrichsweikamp
parents:
diff changeset
286
heinrichsweikamp
parents:
diff changeset
287 movlw .254
heinrichsweikamp
parents:
diff changeset
288 movwf ambient_light+0 ; avoid ADC clipping
heinrichsweikamp
parents:
diff changeset
289
heinrichsweikamp
parents:
diff changeset
290 get_ambient_level2:
201
82faedf8fd58 lower minimum backlight in eco mode
heinrichsweikamp
parents: 200
diff changeset
291 movlw .10
82faedf8fd58 lower minimum backlight in eco mode
heinrichsweikamp
parents: 200
diff changeset
292 subwf ambient_light+0,F ; Subtract 10 (ADC Offset)
82faedf8fd58 lower minimum backlight in eco mode
heinrichsweikamp
parents: 200
diff changeset
293 btfsc STATUS,N
82faedf8fd58 lower minimum backlight in eco mode
heinrichsweikamp
parents: 200
diff changeset
294 movwf ambient_light+0 ; avoid clipping
82faedf8fd58 lower minimum backlight in eco mode
heinrichsweikamp
parents: 200
diff changeset
295
0
heinrichsweikamp
parents:
diff changeset
296 banksel isr_backup ; Back to Bank0 ISR data
heinrichsweikamp
parents:
diff changeset
297 movff opt_brightness,isr1_temp
heinrichsweikamp
parents:
diff changeset
298
heinrichsweikamp
parents:
diff changeset
299 btfsc RCSTA1,7 ; UART module on?
heinrichsweikamp
parents:
diff changeset
300 clrf isr1_temp ; Yes, set temporally to eco mode
heinrichsweikamp
parents:
diff changeset
301
heinrichsweikamp
parents:
diff changeset
302 incf isr1_temp,F ; adjust 0-2 to 1-3
heinrichsweikamp
parents:
diff changeset
303
heinrichsweikamp
parents:
diff changeset
304 banksel common ; flag is in bank1
200
dcd513840c6c cleanup
heinrichsweikamp
parents: 196
diff changeset
305 movlw ambient_light_max_high_cr; cR hardware brightest setting
dcd513840c6c cleanup
heinrichsweikamp
parents: 196
diff changeset
306 btfss cr_hardware
136
9a637c9bb19a rename Deco Planner to Simulator
heinrichsweikamp
parents: 120
diff changeset
307 movlw ambient_light_max_high_15V; 1,5V battery brightest setting
9a637c9bb19a rename Deco Planner to Simulator
heinrichsweikamp
parents: 120
diff changeset
308 btfsc battery_is_36v ; 3,6V battery in use?
9a637c9bb19a rename Deco Planner to Simulator
heinrichsweikamp
parents: 120
diff changeset
309 movlw ambient_light_max_high_36V ; 3,6V battery brightest setting
0
heinrichsweikamp
parents:
diff changeset
310 banksel isr_backup ; Back to Bank0 ISR data
heinrichsweikamp
parents:
diff changeset
311
heinrichsweikamp
parents:
diff changeset
312 dcfsnz isr1_temp,F
heinrichsweikamp
parents:
diff changeset
313 movlw ambient_light_max_eco ; brightest setting
heinrichsweikamp
parents:
diff changeset
314 dcfsnz isr1_temp,F
heinrichsweikamp
parents:
diff changeset
315 movlw ambient_light_max_medium; brightest setting
heinrichsweikamp
parents:
diff changeset
316
heinrichsweikamp
parents:
diff changeset
317 banksel common ; ambient_light is in Bank1
heinrichsweikamp
parents:
diff changeset
318 incf ambient_light+0,F ; +1
heinrichsweikamp
parents:
diff changeset
319 cpfslt ambient_light+0 ; smaller then WREG?
heinrichsweikamp
parents:
diff changeset
320 movwf ambient_light+0 ; No, set to max.
heinrichsweikamp
parents:
diff changeset
321
heinrichsweikamp
parents:
diff changeset
322 banksel isr_backup ; Back to Bank0 ISR data
heinrichsweikamp
parents:
diff changeset
323 movff opt_brightness,isr1_temp
heinrichsweikamp
parents:
diff changeset
324 incf isr1_temp,F ; adjust 0-2 to 1-3
heinrichsweikamp
parents:
diff changeset
325 movlw ambient_light_min_high ; darkest setting
heinrichsweikamp
parents:
diff changeset
326
heinrichsweikamp
parents:
diff changeset
327 dcfsnz isr1_temp,F
heinrichsweikamp
parents:
diff changeset
328 movlw ambient_light_min_eco ; darkest setting
heinrichsweikamp
parents:
diff changeset
329 dcfsnz isr1_temp,F
heinrichsweikamp
parents:
diff changeset
330 movlw ambient_light_min_medium; darkest setting
heinrichsweikamp
parents:
diff changeset
331 dcfsnz isr1_temp,F
heinrichsweikamp
parents:
diff changeset
332 movlw ambient_light_min_high ; darkest setting
heinrichsweikamp
parents:
diff changeset
333
heinrichsweikamp
parents:
diff changeset
334 banksel common ; ambient_light is in Bank1
heinrichsweikamp
parents:
diff changeset
335 cpfsgt ambient_light+0 ; bigger then WREG?
heinrichsweikamp
parents:
diff changeset
336 movwf ambient_light+0 ; No, set to min
heinrichsweikamp
parents:
diff changeset
337
heinrichsweikamp
parents:
diff changeset
338 movff ambient_light+0,max_CCPR1L ; Store value for dimming in TMR7 interrupt
heinrichsweikamp
parents:
diff changeset
339 return
heinrichsweikamp
parents:
diff changeset
340
113
heinrichsweikamp
parents: 44
diff changeset
341 global get_analog_inputs
heinrichsweikamp
parents: 44
diff changeset
342 get_analog_inputs: ; starts ADC and waits until finished
0
heinrichsweikamp
parents:
diff changeset
343 bsf adc_running ; =1: The ADC is in use
113
heinrichsweikamp
parents: 44
diff changeset
344 btfsc TFT_PWM
heinrichsweikamp
parents: 44
diff changeset
345 bra get_analog_inputs ; Wait for PWM low
heinrichsweikamp
parents: 44
diff changeset
346 movlw b'00100000' ; 2.048V Vref+ -> 1LSB = 500µV
heinrichsweikamp
parents: 44
diff changeset
347 movwf ADCON1
heinrichsweikamp
parents: 44
diff changeset
348 movlw b'00100001' ; power on ADC, select AN8
heinrichsweikamp
parents: 44
diff changeset
349 rcall wait_adc
heinrichsweikamp
parents: 44
diff changeset
350 bcf STATUS,C
heinrichsweikamp
parents: 44
diff changeset
351 rrcf ADRESH,F ; /2
189
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
352 rrcf ADRESL,W
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
353 ; add to o2_mv_sensor1:2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
354 addwf o2_mv_sensor1+0,F
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
355 movf ADRESH,W
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
356 addwfc o2_mv_sensor1+1,F
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
357 ; Devide by 2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
358 bcf STATUS,C
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
359 rrcf o2_mv_sensor1+1,F ; /2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
360 rrcf o2_mv_sensor1+0,F
196
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
361
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
362 movlw HIGH ignore_mv
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
363 cpfsgt o2_mv_sensor1+1 ; >ignore_mv?
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
364 bra get_analog_inputs2a ; No
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
365 ; Yes, ignore this reading
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
366 clrf o2_mv_sensor1+1
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
367 clrf o2_mv_sensor1+0
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
368 get_analog_inputs2a:
187
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
369 ; Ignore 1,2mV noise for not-connected inputs
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
370 tstfsz o2_mv_sensor1+1 ; >25,5mV?
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
371 bra get_analog_inputs2 ; Yes, skip here
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
372 movlw .12
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
373 cpfsgt o2_mv_sensor1+0 ; >1,2mV?
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
374 clrf o2_mv_sensor1+0 ; no, clear result
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
375 get_analog_inputs2:
113
heinrichsweikamp
parents: 44
diff changeset
376 movlw b'00100101' ; power on ADC, select AN9
0
heinrichsweikamp
parents:
diff changeset
377 rcall wait_adc
113
heinrichsweikamp
parents: 44
diff changeset
378 bcf STATUS,C
heinrichsweikamp
parents: 44
diff changeset
379 rrcf ADRESH,F ; /2
189
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
380 rrcf ADRESL,W
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
381 ; add to o2_mv_sensor2:2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
382 addwf o2_mv_sensor2+0,F
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
383 movf ADRESH,W
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
384 addwfc o2_mv_sensor2+1,F
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
385 ; Devide by 2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
386 bcf STATUS,C
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
387 rrcf o2_mv_sensor2+1,F ; /2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
388 rrcf o2_mv_sensor2+0,F
196
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
389
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
390 movlw HIGH ignore_mv
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
391 cpfsgt o2_mv_sensor2+1 ; >ignore_mv?
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
392 bra get_analog_inputs3a ; No
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
393 ; Yes, ignore this reading
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
394 clrf o2_mv_sensor2+1
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
395 clrf o2_mv_sensor2+0
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
396 get_analog_inputs3a:
187
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
397 ; Ignore 1,2mV noise for not-connected inputs
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
398 tstfsz o2_mv_sensor2+1 ; >25,5mV?
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
399 bra get_analog_inputs3 ; Yes, skip here
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
400 movlw .12
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
401 cpfsgt o2_mv_sensor2+0 ; >1,2mV?
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
402 clrf o2_mv_sensor2+0 ; no, clear result
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
403 get_analog_inputs3:
113
heinrichsweikamp
parents: 44
diff changeset
404 movlw b'00101001' ; power on ADC, select AN10
heinrichsweikamp
parents: 44
diff changeset
405 rcall wait_adc
heinrichsweikamp
parents: 44
diff changeset
406 bcf STATUS,C
heinrichsweikamp
parents: 44
diff changeset
407 rrcf ADRESH,F ; /2
189
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
408 rrcf ADRESL,W
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
409 ; add to o2_mv_sensor3:2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
410 addwf o2_mv_sensor3+0,F
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
411 movf ADRESH,W
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
412 addwfc o2_mv_sensor3+1,F
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
413 ; Devide by 2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
414 bcf STATUS,C
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
415 rrcf o2_mv_sensor3+1,F ; /2
e79bc535ef9e ignore un-calibrated sensors even if they become valid
heinrichsweikamp
parents: 187
diff changeset
416 rrcf o2_mv_sensor3+0,F
196
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
417
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
418 movlw HIGH ignore_mv
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
419 cpfsgt o2_mv_sensor3+1 ; >ignore_mv?
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
420 bra get_analog_inputs4a ; No
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
421 ; Yes, ignore this reading
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
422 clrf o2_mv_sensor3+1
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
423 clrf o2_mv_sensor3+0
a0e0ddfc1b49 suppress ghost readings for long, open cables
heinrichsweikamp
parents: 189
diff changeset
424 get_analog_inputs4a:
187
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
425 ; Ignore 1,2mV noise for not-connected inputs
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
426 tstfsz o2_mv_sensor3+1 ; >25,5mV?
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
427 bra get_analog_inputs4 ; Yes, skip here
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
428 movlw .12
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
429 cpfsgt o2_mv_sensor3+0 ; >1,2mV?
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
430 clrf o2_mv_sensor3+0 ; no, clear result
669b5d00706d CHANGE: Longer timeout (4 min) for calibration menu
heinrichsweikamp
parents: 158
diff changeset
431 get_analog_inputs4:
0
heinrichsweikamp
parents:
diff changeset
432 bcf ADCON0,0 ; power off ADC
heinrichsweikamp
parents:
diff changeset
433 bcf adc_running ; =1: The ADC is in use
heinrichsweikamp
parents:
diff changeset
434 return
heinrichsweikamp
parents:
diff changeset
435
113
heinrichsweikamp
parents: 44
diff changeset
436 global piezo_config ; Sets up piezo sensitivity of heinrichs weikamp Piezo buttons (~30ms)
117
heinrichsweikamp
parents: 113
diff changeset
437 piezo_config: ; Settings between 20 and 200
220
effd7259f5a5 make button sensitivity configurable (cR hardware)
heinrichsweikamp
parents: 218
diff changeset
438 movff opt_cR_button_right,WREG; right button
117
heinrichsweikamp
parents: 113
diff changeset
439 rcall piezo_config_tx
220
effd7259f5a5 make button sensitivity configurable (cR hardware)
heinrichsweikamp
parents: 218
diff changeset
440 movff opt_cR_button_left,WREG ; left button
204
heinrichsweikamp
parents: 203
diff changeset
441 rcall piezo_config_tx
heinrichsweikamp
parents: 203
diff changeset
442 movlw .200 ; reserved
heinrichsweikamp
parents: 203
diff changeset
443 rcall piezo_config_tx
heinrichsweikamp
parents: 203
diff changeset
444 movlw .200 ; reserved
heinrichsweikamp
parents: 203
diff changeset
445 rcall piezo_config_tx
heinrichsweikamp
parents: 203
diff changeset
446 return
heinrichsweikamp
parents: 203
diff changeset
447
117
heinrichsweikamp
parents: 113
diff changeset
448 piezo_config_tx: ; Send one byte
113
heinrichsweikamp
parents: 44
diff changeset
449 movwf uart1_temp ; Store byte
heinrichsweikamp
parents: 44
diff changeset
450 movlw .8
heinrichsweikamp
parents: 44
diff changeset
451 movwf uart2_temp ; Bit counter
heinrichsweikamp
parents: 44
diff changeset
452 bcf TX3_PIEZO_CFG ; Startbit
heinrichsweikamp
parents: 44
diff changeset
453 rcall piezo_config_wait_bit
heinrichsweikamp
parents: 44
diff changeset
454 piezo_config_tx_loop:
heinrichsweikamp
parents: 44
diff changeset
455 btfss uart1_temp,0 ; LSB first
heinrichsweikamp
parents: 44
diff changeset
456 bcf TX3_PIEZO_CFG
heinrichsweikamp
parents: 44
diff changeset
457 btfsc uart1_temp,0 ; LSB first
heinrichsweikamp
parents: 44
diff changeset
458 bsf TX3_PIEZO_CFG
heinrichsweikamp
parents: 44
diff changeset
459 rcall piezo_config_wait_bit
heinrichsweikamp
parents: 44
diff changeset
460 rrncf uart1_temp,F
heinrichsweikamp
parents: 44
diff changeset
461 decfsz uart2_temp,F
heinrichsweikamp
parents: 44
diff changeset
462 bra piezo_config_tx_loop
heinrichsweikamp
parents: 44
diff changeset
463 bsf TX3_PIEZO_CFG ; Stopbit
heinrichsweikamp
parents: 44
diff changeset
464 rcall piezo_config_wait_bit
heinrichsweikamp
parents: 44
diff changeset
465 return
heinrichsweikamp
parents: 44
diff changeset
466
heinrichsweikamp
parents: 44
diff changeset
467 piezo_config_wait_bit:
heinrichsweikamp
parents: 44
diff changeset
468 setf TMR5H
heinrichsweikamp
parents: 44
diff changeset
469 movlw .255-.26 ;26 x 31,5µs = 819us
heinrichsweikamp
parents: 44
diff changeset
470 movwf TMR5L
heinrichsweikamp
parents: 44
diff changeset
471 bcf PIR5,TMR5IF ; Clear flag
heinrichsweikamp
parents: 44
diff changeset
472 piezo_config_wait_bit3:
heinrichsweikamp
parents: 44
diff changeset
473 btfss PIR5,TMR5IF
heinrichsweikamp
parents: 44
diff changeset
474 bra piezo_config_wait_bit3 ; Wait loop
heinrichsweikamp
parents: 44
diff changeset
475 return
heinrichsweikamp
parents: 44
diff changeset
476
0
heinrichsweikamp
parents:
diff changeset
477 global reset_battery_pointer
heinrichsweikamp
parents:
diff changeset
478 reset_battery_pointer: ; Resets battery pointer 0x07-0x0C and battery_gauge:5
113
heinrichsweikamp
parents: 44
diff changeset
479 extern lt2942_charge_done
heinrichsweikamp
parents: 44
diff changeset
480 call lt2942_charge_done ; Reset accumulating registers to 0xFFFF
heinrichsweikamp
parents: 44
diff changeset
481 clrf EEADRH
0
heinrichsweikamp
parents:
diff changeset
482 clrf EEDATA ; Delete to zero
heinrichsweikamp
parents:
diff changeset
483 write_int_eeprom 0x07
heinrichsweikamp
parents:
diff changeset
484 write_int_eeprom 0x08
heinrichsweikamp
parents:
diff changeset
485 write_int_eeprom 0x09
heinrichsweikamp
parents:
diff changeset
486 write_int_eeprom 0x0A
heinrichsweikamp
parents:
diff changeset
487 write_int_eeprom 0x0B
heinrichsweikamp
parents:
diff changeset
488 write_int_eeprom 0x0C
heinrichsweikamp
parents:
diff changeset
489 banksel battery_gauge+0
heinrichsweikamp
parents:
diff changeset
490 clrf battery_gauge+0
heinrichsweikamp
parents:
diff changeset
491 clrf battery_gauge+1
heinrichsweikamp
parents:
diff changeset
492 clrf battery_gauge+2
heinrichsweikamp
parents:
diff changeset
493 clrf battery_gauge+3
heinrichsweikamp
parents:
diff changeset
494 clrf battery_gauge+4
heinrichsweikamp
parents:
diff changeset
495 clrf battery_gauge+5
heinrichsweikamp
parents:
diff changeset
496 banksel common
heinrichsweikamp
parents:
diff changeset
497 movlw .100
heinrichsweikamp
parents:
diff changeset
498 movwf batt_percent
heinrichsweikamp
parents:
diff changeset
499 return
heinrichsweikamp
parents:
diff changeset
500
heinrichsweikamp
parents:
diff changeset
501
heinrichsweikamp
parents:
diff changeset
502 END