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628
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1 Change Note 3.03.4
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2 ==================
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3
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4 - More compact code for TR firmware and compass.
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5
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6 - Slightly more compact code for deco engine.
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7
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8 - Improvement of code for CNS calculation.
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9
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10 - Added a hysteresis to the dive start / dive end depth threshold.
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11
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12 - Bugfix in none-helium compile variant.
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13
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14
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15 Change Note 3.03.3
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16 ==================
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17
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18 - Added an option "extended stops" (named "Gas Change/...before 1.Stop" in Deco Setup
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19 -> Deco Parameters -> more). If set to YES, a gas switch will be planned immediately
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20 on the change depth of the gas, even if a stop on that depth is not required by deco
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21 constraints. When set to NO, the gas switch will be planned to be done on the next
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22 regular deco stop.
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23 With extended stops enabled and a setting of "Gas Change (time):+0'" the switch will
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24 be planned with no actual halt at the change depth (i.e. "switch on the fly"). With
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25 change time set to > 0', a dedicated stop will be placed at the change depth for the
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26 given number of minutes. This gas change stop may not be needed by deco constraints,
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27 but it will influence the following deco stop depths and times as it introduces some
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28 added time at depth.
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29
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30
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31 Change Note 3.03.2
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32 ==================
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33
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34 - Complete rework of the alternative dive mode screen layout.
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35
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36 - Various code improvements.
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37
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38
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39
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40 Change Note 3.03.1
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41 ==================
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42
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43 - Various code improvements.
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44
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45 - Included RX firmware update into tech version.
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46
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47 - Modularization of the code to allow to compile in or not various features.
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48
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49
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50 Change Note 3.02.1
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51 ==================
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52
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53 - Reworked code for ascent and deco stops calculation. Does produce different results
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54 compared to the code used in 3.00.3! With this implementation of an GF-controlled
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55 deco schedule it becomes visible when deco stops disappear due to a high GF slope
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56 (difference between GF low and GF high) combined with a moderate depth of the first
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57 deco stop.
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58
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59 - When switching between GF and aGF, the depth of the first stop (determined by GF low)
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60 will be recalculated now.
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61
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62 - Improved calculation of the supersaturation.
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63
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64 - New tissue graphics option (compile option as of now): shows absolute tissue pressures
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65 (N2 + He added) and saturation per tissue. In the saturation bargraphs, the green line
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66 marks GF low position, the yellow line GF high and the red one 100%.
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67
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68 - Numerous improvements around dive loop and deco engine start-up.
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69
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70 - speed_fastest now available again on new OSTC Sport, will adjust to 32 MHz.
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71
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72 Memory status: 2.252 bytes free with single language (English), RX-functions & screendump
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73
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74
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75 Change Note 3.00.3c
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76 ===================
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77
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78 - GF low can not be set higher than GF high any more as such a setting would produce
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79 an illogical deco schedule.
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80
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81 - In case the compass is not calibrated, the heading is now displayed as "---°"
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82 instead of ".00°".
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83
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84
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85 Change Note 3.00.3b
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86 ===================
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87
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88 - In the surface tissue graphics, tissues whose supersaturation exceed 100% are shown
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89 in red color now.
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90
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91 - If any tissue is beyond 100%, no desaturation and no-fly times will be shown anymore.
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92
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93 - After use of the dive simulator and the deco calculator the interim tissue desaturation
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94 is catched up now.
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95
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96 - Internal: prohibit selection of fastest speed on OSTC Sport hardware (uses flag for
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97 screen type 2 while there is no dedicated flag for Sport hardware itself).
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98
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99 Memory status: 2.627 bytes free with single language (English), RX-functions, screendump
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100 and deco engine performance measurement compiled in
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101
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102 Change Note 3.00.3
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103 ==================
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104
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105 - Added support for display type 2.
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106
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107 - Added Deco Engine scheduling performance measurement (accessible via debug output).
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108
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109 - Open/Next Items:
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110
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111 + Catch up with tissue desaturation after a simulator run.
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112
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113 + Widen threshold for DECO ZONE cue to avoid too frequent appearing / disappearing.
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114
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115 + Detect OSTC Sport hardware and suppress speed_fastest on this hardware.
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116
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117 + Display dim-up in dive mode could be initiated later when more content is on the screen.
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118 Alternatively use hard switch-on instead of dimming up.
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119
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120 + The temperature value should be LP-filtered (averaged) to avoid too frequent toggling
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121 when on the edge of +/- 1 degree.
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122
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123
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124 Memory status: 2.952 bytes free with single language (English), RX-functions and screendump.
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125
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126
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127 Change Note 3.00.2
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128 ==================
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129
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130 - The Deco Engine has been reworked to now run for up to 700 ms each second (configurable,
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131 800 ms may be feasible also), split into two compute chunks per second. This increases
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132 reactivity to buttons presses and compass display, while boosting deco calculation turn-
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133 around times significantly.
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134
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135 Memory status: 3.760 bytes free with single language (English), RX-functions and screendump.
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136
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137
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138 Change Note 3.00.1
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139 ==================
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140
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141 - The simulator now uses the current ambient pressure as surface pressure instead of a fixed
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142 1.000 hPa as done before. So in mountain diving, when being at the dive site the simulator
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143 will show the same NDL times and deco schedules as will be shown in a real dive.
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144
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145 - When exiting the surface menu, the return to the normal surface screen has been sped up
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146 and the display of the power-up logo screen is skipped now also.
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147
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148 - When submerged, the unit will now proceed from surface mode display to dive mode display
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149 without intermediate display of the power-up logos.
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150
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151 - A cue is given when it is time to go up to th next deco stop by highlighting the next stop
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152 data until ascent is done.
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153
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154 - When being shallower than the indicated stop depth, i.e. because the deco needs to be
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155 accelerated, the reduced ambient pressure is figured in into the deco calculations such
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156 that the displayed stop time, TTS and gas needs do immediately reflect the reduced depth.
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157
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158 - When set to imperial units, all depth will be shown in feet now not only in dive mode but
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159 also throughout the whole surface menus.
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160
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161 - When in a leap year, the 29th of February is now correctly handled when adjusting time and
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162 date on exactly that day.
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163
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164 - Bugfix: with the option 'always show ppO2' set, in CCR and pSCR mode a "Dil:x.xx" ppO2
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165 message was sometimes shown twice, once as an info and additionally as an attention or
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166 warning. This has been fixed now: in case of an active attention or warning the secondary
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167 info message gets suppressed.
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168
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169 - Bugfix: the Simulator +5 min function had a punch-through effect on the real world last
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170 dive time (displayed surface interval).
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171
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172 - Tissue desaturation is now also computed while in surface and menu modes.
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173
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174
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175 Some more internal improvements:
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176
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177 - Handling of data transfer into and out of the interrupt service routine has been reworked.
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178
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179 - Memory placement of key variables has been reworked to reduce the number of bank switches.
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180
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181 - In case option check reveals no errors, an unnecessary write-back to the EEPROM is suppressed
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182 to speed-up restart and reduce wear.
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183
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184 - Large portion of the code have been inspected / reviewed.
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185
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186 - Further improvements in code quality, formatting and commenting (done while code review).
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