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annotate src/start.asm @ 119:2acf3d068fae

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author heinrichsweikamp
date Fri, 27 Jun 2014 10:44:06 +0200
parents f3062a611eef
children 939f1e83c4c2
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1 ;=============================================================================
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2 ;
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3 ; File start.asm
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4 ;
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5 ; Startup subroutines
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6 ;
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7 ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved.
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8 ;=============================================================================
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9 ; HISTORY
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10 ; 2011-08-06 : [mH] moving from OSTC code
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11
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12 #include "ostc3.inc" ; Mandatory header
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13 #include "ms5541.inc"
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14 #include "isr.inc"
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15 #include "shared_definitions.h" ; Mailbox from/to p2_deco.c
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16 #include "eeprom_rs232.inc"
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17 #include "math.inc"
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18 #include "tft.inc"
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19 #include "surfmode.inc"
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20 #include "wait.inc"
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21 #include "rtc.inc"
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22 #include "external_flash.inc"
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23 #include "convert.inc"
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24 #include "strings.inc"
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25 #include "tft_outputs.inc"
113
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26 #include "adc_lightsensor.inc"
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27 #include "i2c.inc"
0
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28
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29 extern init_ostc3
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30 extern option_restore_all
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31
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32 ;=============================================================================
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33 ; Reset vector: What to do on device wake-up and hard reset.
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34 ;
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35 reset_v code 0x00000
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36 ; goto start
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37 goto 0x1FF00 ; Bootloader
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38
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39 ORG 0x00004 ; Needed for second-level bootloader
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40 goto start
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41 ;=============================================================================
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42 boot CODE
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43 global start
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44
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45 start:
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46 lfsr FSR0,0x000 ; Clear rambank 0-14
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47 clear_rambank:
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48 clrf POSTINC0
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49 movlw 0x0F
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50 cpfseq FSR0H ; Bank 14 done?
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51 bra clear_rambank ; clear...
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52
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53 call init_ostc3
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54 call speed_normal
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55
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56 bsf no_sensor_int ; disable sensor interrupt
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57
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58 call disable_rs232 ; disable UART module
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59 ; Air pressure compensation after reset
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60 call get_calibration_data ; Get calibration data from pressure sensor
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61 banksel common ; get_calibration_data uses isr_backup
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62 bcf no_sensor_int ; normal sensor interrupt mode
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63
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64 call piezo_config
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55dfc8f6093f sensor status on power-on reset
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65 call TFT_DisplayOff ; display off
55dfc8f6093f sensor status on power-on reset
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66 bsf LEDr ; Status LED
0
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67 bcf pressure_refresh
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68 ; First pass will not have valid temperature!
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69 btfss pressure_refresh ; Air pressure compensation
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70 bra $-2
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ec4d8503ec45 NEW: user-selectable color schemes
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71 bcf LEDr
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72 ; Second pass
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73 bcf pressure_refresh
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74 btfss pressure_refresh ; Air pressure compensation
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75 bra $-2
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76
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77 clrf rel_pressure+0
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78 clrf rel_pressure+1
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79 clrf surface_interval+0
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80 clrf surface_interval+1
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81
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82 SAFE_2BYTE_COPY amb_pressure, last_surfpressure
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83
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84 movlw LOW max_surfpressure
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85 movff WREG,sub_a+0 ; max. "allowed" airpressure in mbar
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86 movlw HIGH max_surfpressure
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87 movff WREG,sub_a+1 ; max. "allowed" airpressure in mbar
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88 movff last_surfpressure+0,sub_b+0
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89 movff last_surfpressure+1,sub_b+1
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90 call subU16 ; sub_c = sub_a - sub_b
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91 btfss neg_flag ; Is 1080mbar < amb_pressure ?
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92 bra start_copy_pressure ; NO: current airpressure is lower then "allowed" airpressure, ok!
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93
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94 ; not ok! Overwrite with max. "allowed" airpressure
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95 movlw LOW max_surfpressure
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96 movff WREG,last_surfpressure+0 ; max. "allowed" airpressure in mbar
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97 movlw HIGH max_surfpressure
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98 movff WREG,last_surfpressure+1 ; max. "allowed" airpressure in mbar
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99
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100 start_copy_pressure:
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101 movff last_surfpressure+0,last_surfpressure_15min+0
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102 movff last_surfpressure+1,last_surfpressure_15min+1
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103 movff last_surfpressure+0,last_surfpressure_30min+0
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104 movff last_surfpressure+1,last_surfpressure_30min+1 ; Rests all airpressure registers
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105
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106 ; reset deco data for surface mode
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107 movlw d'79'
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108 movff WREG,char_I_N2_ratio ; 79% N2
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109 SAFE_2BYTE_COPY amb_pressure,int_I_pres_respiration ; copy for deco routine
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110 movff int_I_pres_respiration+0,int_I_pres_surface+0 ; copy for desat routine
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111 movff int_I_pres_respiration+1,int_I_pres_surface+1
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112
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113 extern deco_reset
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114 call deco_reset
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115 call deco_calc_desaturation_time ; calculate desaturation time
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116 banksel common
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117 call deco_calc_wo_deco_step_1_min ; calculate deco in surface mode
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118 banksel common
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119 clrf nofly_time+0 ; Reset NoFly
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120 clrf nofly_time+1
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121 clrf desaturation_time+0 ; Reset Desat
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122 clrf desaturation_time+1
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123 bcf menubit ; clear menu flag
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124 ; Check for Power-on reset here
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125 extern new_battery_menu
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126 extern use_old_batteries
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127
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128 btfsc RCON,POR ; Was this a power-on reset?
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129 goto use_old_batteries ; No, load last stored battery values
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130 ; "new_battery_menu" and "use_old_batteries" 'goto' back to "power_on_return"
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131
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132 ; Yes
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133 call rtc_init ; init clock
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134 goto new_battery_menu ; show "New battery dialog"
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135 ; "new_battery_menu" and "use_old_batteries" 'goto' back to "power_on_return"
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136
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137 global power_on_return
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138 power_on_return:
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139 bsf RCON,POR ; Set bit for next detection
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140
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141 ; check firmware and reset Custom Functions after an update
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142 movlw d'1'
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143 movwf EEADR
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144 movlw d'1'
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145 movwf EEADRH
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146 call read_eeprom ; read current version x
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147 movff EEDATA,temp1
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148 incf EEADR,F ; set to 0x102
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149 call read_eeprom ; read current version y
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150 movff EEDATA,temp2
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151 clrf EEADRH ; Reset EEADRH
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152
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153 movlw softwareversion_x
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154 cpfseq temp1 ; compare version x
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155 bra check_firmware_new ; is not equal -> reset CF and store new version in EEPROM
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156
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157 movlw softwareversion_y
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158 cpfseq temp2 ; compare version y
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159 bra check_firmware_new ; is not equal -> reset CF and store new version in EEPROM
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160 bra restart ; x and y are equal -> do not reset cf
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161
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162 check_firmware_new:
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163 call speed_normal
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164 call TFT_boot ; Initialize TFT (includes clear screen)
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165 clrf CCPR1L ; Backlight off
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166 WIN_TOP .50
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167 WIN_LEFT .10
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168 movlw LOW 0x1E000
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169 movwf TBLPTRL
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170 movlw HIGH 0x1E000
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171 movwf TBLPTRH
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172 movlw UPPER 0x1E000
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173 movwf TBLPTRU
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174 extern color_image
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175 call color_image ; Show logo
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176 call TFT_standard_color
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177 WIN_SMALL .10,.100
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0fae975af741 english correction
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178 STRCPY_TEXT_PRINT tNewFirmware1 ; "Update successfull!"
0
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179 WIN_SMALL .10,.140
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180 STRCPY_TEXT tNewFirmware2 ; "New Firmware: "
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181 movlw softwareversion_x
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182 movwf lo
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183 bsf leftbind
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184 output_8
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185 PUTC "."
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186 movlw softwareversion_y
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187 movwf lo
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76dfe320e6ec 1.01 beta start
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188 output_99x
0
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189 bcf leftbind
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190 STRCAT_PRINT "" ; Print second row
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191 call TFT_Display_FadeIn ; Display resulting surface screen.
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192
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193 ; place "after-update reset" here...
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5e1ef9bf32ec clear pressure sensor compensation upon update
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194
5e1ef9bf32ec clear pressure sensor compensation upon update
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195 extern oPressureAdjust, option_reset, option_save
5e1ef9bf32ec clear pressure sensor compensation upon update
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196 lfsr FSR0,oPressureAdjust
5e1ef9bf32ec clear pressure sensor compensation upon update
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197 call option_reset ; Reset FSR0 option to factory default.
5e1ef9bf32ec clear pressure sensor compensation upon update
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198 lfsr FSR0,oPressureAdjust
5e1ef9bf32ec clear pressure sensor compensation upon update
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199 call option_save ; Save in EEPROM
5e1ef9bf32ec clear pressure sensor compensation upon update
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200
0
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201 movlw d'1' ; store current version in EEPROM
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202 movwf EEADR
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203 movlw d'1'
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204 movwf EEADRH
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205 movlw softwareversion_x
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206 movwf EEDATA
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207 call write_eeprom ; write version x
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208 incf EEADR,F ; set to 0x102
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209 movlw softwareversion_y
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210 movwf EEDATA
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211 call write_eeprom ; write version y
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212 clrf EEADRH ; Reset EEADRH
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213
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214 movlw .7
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215 movwf lo
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216 check_firmware_new2:
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217 ; Wait 1 second
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218 bcf onesecupdate
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219 btfss onesecupdate
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220 bra $-2
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221 decfsz lo,F ; Wait 10 seconds...
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222 bra check_firmware_new2
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223
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224 global restart
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225 restart:
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226 clrf STKPTR ; Never return from here
21
79b2084fd75a Reset options to default if they are not within the allowed min/max values
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227 extern option_save_all, option_check_all
79b2084fd75a Reset options to default if they are not within the allowed min/max values
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228
0
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229 btfsc menubit ; Return from Menu/COMM mode or timeout?
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230 call option_save_all ; Yes, save all settings into EEPROM
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231
23
e402813343b6 new option to switch samplingrate between 10s and 2s
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232 call option_check_all ; Check all options (and reset if not within their min/max boundaries)
e402813343b6 new option to switch samplingrate between 10s and 2s
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233
0
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234 clrf flag1 ; clear all flags
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235 clrf flag2
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236 clrf flag3
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237 clrf flag4
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238 clrf flag5
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239 clrf flag6
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240 clrf flag7
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241 clrf flag8
16
7b06f20881be calm compass reading for minor heading changes
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242 clrf flag9
113
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243 clrf flag10
0
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244 bsf tft_is_dimming ; TFT is dimming up (soon), ignore ambient sensor!
23
e402813343b6 new option to switch samplingrate between 10s and 2s
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245
113
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246 call lt2942_get_status ; Check for gauge IC
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247 btfsc c3_hardware ; C3 hardware?
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248 call lt2942_init ; Yes, init battery gauge IC
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249
0
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250 ; Select high altitude (Fly) mode?
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251 movff last_surfpressure_30min+0,sub_b+0
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252 movff last_surfpressure_30min+1,sub_b+1
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253 movlw HIGH high_altitude_threshold
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254 movwf sub_a+1
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255 movlw LOW high_altitude_threshold ; Hard-wired 880mbar
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256 movwf sub_a+0
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257 call subU16 ; sub_c = sub_a - sub_b
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258 btfss neg_flag ; Result negative (Ambient>880mbar)?
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259 bsf high_altitude_mode ; No, Set Flag!
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260
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261 call ext_flash_disable_protection ; Disable write protection for external flash
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262
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263 extern testloop
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264 ; goto testloop
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265
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266 goto surfloop ; Jump to Surfaceloop!
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267
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268 ;=============================================================================
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269 ; Setup all flags and parameters for divemode and simulator computations.
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270 ;
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271 global restart_set_modes_and_flags
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272 restart_set_modes_and_flags: ; "Call"ed from divemode, as well!
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273 call option_restore_all ; Restore everything from EEPROM
24
f51caad821b4 save logbook recording interval
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274
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275 ; Setup sampling rate
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276 movlw .2
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277 movwf samplingrate
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278 TSTOSS opt_sampling_rate ; =1: 10s, =0: 2s
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279 bra restart_set_modes_and_flags1
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280 movlw .10
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281 movwf samplingrate
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282 restart_set_modes_and_flags1:
0
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283 movff opt_dive_mode,lo ; 0=OC, 1=CC, 2=Gauge, 3=Apnea
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284
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285 bcf FLAG_apnoe_mode
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286 bcf FLAG_ccr_mode ; =1: CCR mode (Fixed ppO2 or Sensor) active
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287 bcf FLAG_gauge_mode ; =1: In Gauge mode
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288 call disable_ir ; IR off
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289
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290 tstfsz lo
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291 bra restart_set_modes_and_flags2
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292 ; OC Mode
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293 return
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294
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295 restart_set_modes_and_flags2:
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296 decfsz lo,F
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297 bra restart_set_modes_and_flags3
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298 ; CC Mode
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299 bsf FLAG_ccr_mode ; =1: CCR mode (Fixed ppO2 or Sensor) active
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300 call enable_ir ; Enable IR-Port
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301 return
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302
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303 restart_set_modes_and_flags3:
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304 decfsz lo,F
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305 bra restart_set_modes_and_flags4
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306 ; Gauge Mode
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307 bsf FLAG_gauge_mode ; =1: In Gauge mode
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308 return
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309
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310 restart_set_modes_and_flags4:
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311 ; Apnea Mode
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312 bsf FLAG_apnoe_mode
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313 return ; start in Surfacemode
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314
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315 END