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2 ; OSTC - diving computer code
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3 ; Copyright (C) 2008 HeinrichsWeikamp GbR
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4
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5 ; This program is free software: you can redistribute it and/or modify
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6 ; it under the terms of the GNU General Public License as published by
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7 ; the Free Software Foundation, either version 3 of the License, or
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8 ; (at your option) any later version.
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9
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10 ; This program is distributed in the hope that it will be useful,
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11 ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 ; GNU General Public License for more details.
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14
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15 ; You should have received a copy of the GNU General Public License
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16 ; along with this program. If not, see <http://www.gnu.org/licenses/>.
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17
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18
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19 ; routines for Surface mode
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20 ; written by: Matthias Heinrichs, info@heinrichsweikamp.com
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21 ; written: 10/01/05
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22 ; last updated: 080905
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23 ; known bugs:
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24 ; ToDo:
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25
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26 surfloop:
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27 ; Boot tasks for all modes
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28 call restart_set_modes_and_flags ; Sets decomode flags
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29 clrf lo
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30 movff lo,char_I_const_ppO2 ; reset to standard mode, OSTC assumes Air breathing at the surface!
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31
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32 call PLED_brightness_full ;max. brightness
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33
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34 call I2CReset
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35 call enable_rs232
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36 call PLED_boot
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37 call PLED_serial ; Show OSTC serial and firmware version
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38 call PLED_clock ; display time
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39 call update_date ; display date
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40 movff last_surfpressure_30min+0,int_I_pres_respiration+0 ; copy surface air pressure to deco routine
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41 movff last_surfpressure_30min+1,int_I_pres_respiration+1 ; 30min old values
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42 movff last_surfpressure_30min+0,int_I_pres_surface+0 ; copy surface air pressure to deco routine
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43 movff last_surfpressure_30min+1,int_I_pres_surface+1 ; 30min old values
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44
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45 btfsc gauge_mode ; Ignore in gauge mode
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46 bra surfloop1
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47 btfsc FLAG_apnoe_mode ; Ignore in Apnoe mode
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48 bra surfloop1
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49
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50 ; Startup tasks for decompression modes
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51 call PLED_desaturation_time ; display desaturation time
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52 call PLED_nofly_time ; display nofly time
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53 call PLED_tissue_saturation_graph ; display saturation graph
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54 call PLED_active_gas_surfmode ; Show start gas
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55 call PLED_display_decotype_surface ; Show deco mode (ZH-L16, const. ppO2 or Multi-GF)
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56
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57 surfloop1:
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58 btfss gauge_mode ; Display only in gauge mode
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59 bra surfloop2
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60 DISPLAYTEXT d'103' ; Gauge mode
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61 surfloop2:
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62 btfss FLAG_apnoe_mode ; Display only in Apnoe mode
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63 bra surfloop3
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64 DISPLAYTEXT d'116' ; Apnoe mode
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65
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66 surfloop3:
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67 ; Startup tasks for all modes
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68 clrf timeout_counter2
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69 clrf timeout_counter3
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70 bcf premenu ; clear premenu flag
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71 bcf menubit ; clear menu flag
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72 bcf pressure_refresh
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73 clrf last_pressure+0
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74 clrf last_pressure+1
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75 clrf last_temperature+0
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76 clrf last_temperature+1
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77
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78 movlw d'5'
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79 movwf timeout_counter ; reload counter
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80
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81 call clear_LEDusb
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82 call clear_LEDy
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83 bcf simulatormode_active ; Quit simulator mode (if active)
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84 bcf standalone_simulator ; Quit simulator mode (if active)
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85 WIN_TOP .0
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86 WIN_LEFT .0
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87 WIN_FONT FT_SMALL
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88 WIN_INVERT .0 ; Init new Wordprocessor
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3
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89 call PLED_standard_color
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90
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0
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91 bcf switch_left
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92 bcf switch_right
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93 call PLED_custom_text ; Displays custom text
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94 movlw d'1' ; next cf to check
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95 movwf cf_checker_counter ;
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96 ostc_debug 'G' ; Sends debug-information to screen if debugmode active
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97 GETCUSTOM8 d'12' ; Desaturation multiplier %
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98 movwf wait_temp
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99 movff wait_temp,char_I_desaturation_multiplier
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100 GETCUSTOM8 d'11' ; Saturation multiplier %
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101 movwf wait_temp
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102 movff wait_temp,char_I_saturation_multiplier
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103 call deco_main_calc_desaturation_time; calculate desaturation time
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104 movlb b'00000001' ; select ram bank 1
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105 ostc_debug 'H' ; Sends debug-information to screen if debugmode active
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106
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107 call wait_switches ; Waits until switches are released, resets flag if button stays pressed!
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108
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109 surfloop_loop:
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110 btfss onesecupdate ; do every second tasks?
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111 bra surfloop_loop2 ; no, loop
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112
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113 btfss FLAG_const_ppO2_mode ; are we in const. ppO2 mode?
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114 bra surfloop_loop1 ; No
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115 ; One Second tasks for ppO2 modes
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116
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117 bra surfloop_loop1 ; Do not search for sensor in CC mode
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118
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119
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120 surfloop_loop1:
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121 ; One Second tasks for all modes
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122 call PLED_clock ; update clock
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123 call test_charger ; check if charger IC is active
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124 call timeout_surfmode ; check timeout
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125 call get_battery_voltage ; get battery voltage
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126 call update_batt_voltage ; display battery voltage
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127 call timeout_premenu ; timeout premenu
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128 call set_leds_surfmode ; Sets Warning and No-Fly LEDs
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129 call custom_functions_check_surfmode ; Checks CF functions and displays warning symbol if something critical is wrong
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130 call PLED_active_gas_surfmode ; Show start gas / SetPoint
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131 call PLED_display_decotype_surface ; Show deco mode
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132 btfsc enter_error_sleep ; Enter Fatal Error Routine?
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133 goto fatal_error_sleep ; Yes (In Sleepmode_vxx.asm!)
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134 bcf onesecupdate ; every second tasks done
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135
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136 surfloop_loop2:
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137 ; Tasks approx. every 50ms for all modes
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138 call test_switches_surfmode ; check switches
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139
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140 ; Sensor tasks for all modes
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141 btfsc pressure_refresh ; new pressure available?
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142 call update_surf_press ; display surface pressure
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143 btfsc pressure_refresh ; new temperature available?
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144 call PLED_temp_surfmode ; Displays temperature
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145 btfsc pressure_refresh ; new pressure available?
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146 call set_dive_modes ; tests if depth>threshold
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147 bcf pressure_refresh ; until new pressure is available
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148
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149 ; One minute tasks for all modes
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150 btfsc oneminupdate ; do every minute tasks
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151 call update_surfloop60 ; yes, e.g. update time and date
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152
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153 ; Mode tasks
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154 btfsc menubit ; Menu?
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155 goto menu ; Menu!
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156 btfsc divemode ; Divemode active?
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157 goto diveloop ; Yes, switch into Divemode!
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158 btfsc sleepmode ; Sleepmode active?
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159 goto sleeploop ; Yes, switch into sleepmode!
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160 ; Check for the different UART flags
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161 btfsc dump_external_eeprom ; Start interface (dumps EEPROM BANK 0 + additional data)?
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162 goto menu_interface ; Yes!
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163 btfsc uart_settime ; Sync clock with PC?
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164 goto sync_clock ; Yes!
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165 btfsc internal_eeprom_write ; Access internal EEPROM BANK 0 via UART module
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166 goto internal_eeprom_access_b0 ; Yes!
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167 btfsc internal_eeprom_write2 ; Access internal EEPROM BANK 1 via UART module
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168 goto internal_eeprom_access_b1 ; Yes!
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169 btfsc uart_send_hash ; Send MD2 hash values
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170 goto send_md2_hash ; Yes!
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171 btfsc uart_compensate_temp ; Enter temp. compensation routine?
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172 goto compensate_temperature ; Yes!
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173 btfsc uart_send_int_eeprom ; Send internal EEPROM BANK 0
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174 goto send_int_eeprom_b0 ; Yes!
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175 btfsc uart_reset_decodata ; Reset Deco Data?
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176 goto reset_decodata ; Yes!
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177 btfsc uart_send_int_eeprom2 ; Send internal EEPROM BANK 1
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178 goto send_int_eeprom_b1 ; Yes!
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179 btfsc uart_store_tissue_data ; Store tissue data?`
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180 goto uart_store_tissues ; Yes!
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181
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182 bra surfloop_loop ; loop surfacemode
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183
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184
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185 update_surfloop60:
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186 ; One minute tasks for all modes
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187 call update_date ; and date in divemode
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188 call calc_deko_surfmode ; calculate desaturation every minute
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189 call check_temp_extrema ; check for new temperature extremas
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190 call PLED_custom_text ; Displays custom text
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191 call calc_surface_interval ; Increases Surface-Interval time
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192
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193 btfsc gauge_mode ; Ignore in gauge mode
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194 bra update_surfloop60_2
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195 btfsc FLAG_apnoe_mode ; Ignore in Apnoe mode
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196 bra update_surfloop60_2
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197
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198 ; One Minute tasks for deco modes
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199 call PLED_nofly_time ; display nofly time
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200 call PLED_desaturation_time ; display desaturation time
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201 btfss premenu ; Not when "Menu?" is displayed!
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202 call PLED_tissue_saturation_graph; display saturation graph
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203
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204 update_surfloop60_2:
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205 call nofly_timeout60 ; checks if nofly time is > 0
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206 bcf oneminupdate
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207 return
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208
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209 nofly_timeout60:
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210 bsf nofly_active ; Set flag
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211 movlw d'1'
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212 subwf nofly_time+0,F
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213 movlw d'0'
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214 subwfb nofly_time+1,F ; reduce by one
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215 tstfsz nofly_time+0 ; =0?
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216 return
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217 tstfsz nofly_time+1 ; =0?
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218 return
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219 bcf nofly_active ; Clear flag
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220 call clear_LEDnofly
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221 incf nofly_time+0,F ; =1
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222 return
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223
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224 calc_surface_interval:
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225 movff int_O_desaturation_time+0,lo ; divide by 60...
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226 movff int_O_desaturation_time+1,hi
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227 tstfsz lo ;=0?
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228 bra calc_surface_interval2 ; No
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229 tstfsz hi ;=0?
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230 bra calc_surface_interval2 ; No
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231 clrf surface_interval+0
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232 clrf surface_interval+1 ; Clear surface interval timer
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233 return
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234
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235 calc_surface_interval2: ; Increase surface interval timer
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236 movlw d'1'
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237 addwf surface_interval+0,F
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238 movlw d'0'
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239 addwfc surface_interval+1,F
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240 return
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241
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242 set_leds_surfmode:
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243 btfsc nofly_active
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244 call toggle_LEDnofly
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245 return
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246
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247 calc_deko_surfmode:
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248 call set_LEDg
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249 ostc_debug 'I' ; Sends debug-information to screen if debugmode active
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250
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251 movff last_surfpressure+0,int_I_pres_surface+0 ; copy surface air pressure to deco routine
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252 movff last_surfpressure+1,int_I_pres_surface+1
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253 clrf wait_temp ; Use as buffer
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254 movff wait_temp,char_I_He_ratio ; No He at the Surface
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255 movlw d'79' ; 79% N2
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256 movwf wait_temp ; Use as buffer
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257 movff wait_temp,char_I_N2_ratio ; No He at the Surface
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258
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259 movff amb_pressure+0,int_I_pres_respiration+0 ; copy surface air pressure to deco routine
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260 movff amb_pressure+1,int_I_pres_respiration+1
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261 GETCUSTOM8 d'11' ; Saturation multiplier %
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262 movwf wait_temp
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263 movff wait_temp,char_I_saturation_multiplier
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264 GETCUSTOM8 d'12' ; Desaturation multiplier %
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265 movwf wait_temp
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266 movff wait_temp,char_I_desaturation_multiplier
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267
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268 call deco_main_calc_wo_deco_step_1_m ; calculate deco in surface mode
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269 movlb b'00000001' ; select ram bank 1
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270 ostc_debug 'J' ; Sends debug-information to screen if debugmode active
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271 call clear_LEDg
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272 return
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273
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274
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275 test_charger:
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276 bcf TRISC,1 ; CHRG_OUT output
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277 bsf CHRG_OUT
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278
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279 bcf cc_active ; Constant Current mode active?
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280 btfss CHRG_IN ; If CHRG_IN=0 -> CC active
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281 bsf cc_active ; Constant Current mode Active!
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282
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283 bcf CHRG_OUT
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284 bsf TRISC,1 ; CHRG_OUT high impedance
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285
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286 WAIT10US d'10'
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287
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288 bcf cv_active ; Constant Voltage mode Active?
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289 btfss CHRG_IN ; If CHRG_IN=0 -> CV active
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290 bsf cv_active ; Constant Voltage mode active!
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291
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292 bcf TRISC,1 ; CHRG_OUT output
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293 bcf CHRG_OUT
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294
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295 btfsc cc_active
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296 bra show_cc_active
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297 btfsc cv_active
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298 bra show_cv_active
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299
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300 bsf TRISC,1 ; CHRG_OUT high impedance
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301
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302 ; Charger inactive or ready
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303 btfss charge_done ; charge done?
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304 bra test_charger2 ; No, add incomplete cycle!
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305
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306 ; Yes, store all data for complete cycle
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307 bcf charge_started ; Clear flag
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308 bcf charge_done ; Clear flag
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309 ; Store incomplete/total cycles
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310 read_int_eeprom d'50' ; Read byte (stored in EEDATA)
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311 movff EEDATA,temp1 ; Low byte
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312 read_int_eeprom d'51' ; Read byte (stored in EEDATA)
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313 movff EEDATA,temp2 ; high byte
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314 bcf STATUS,C
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315 movlw d'1'
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316 addwf temp1
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317 movlw d'0'
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318 addwfc temp2
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319 movff temp1,EEDATA
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320 write_int_eeprom d'50' ; write byte stored in EEDATA
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321 movff temp2,EEDATA
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322 write_int_eeprom d'51' ; write byte stored in EEDATA
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323
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324 ; Store complete cycles
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325 read_int_eeprom d'52' ; Read byte (stored in EEDATA)
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326 movff EEDATA,temp1 ; Low byte
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327 read_int_eeprom d'53' ; Read byte (stored in EEDATA)
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328 movff EEDATA,temp2 ; high byte
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329 bcf STATUS,C
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330 movlw d'1'
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331 addwf temp1
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332 movlw d'0'
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333 addwfc temp2
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334 movff temp1,EEDATA
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335 write_int_eeprom d'52' ; write byte stored in EEDATA
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336 movff temp2,EEDATA
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337 write_int_eeprom d'53' ; write byte stored in EEDATA
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338 ; Store date of complete cycle
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339 movff month,EEDATA
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340 write_int_eeprom d'47'
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341 movff day,EEDATA
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342 write_int_eeprom d'48'
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343 movff year,EEDATA
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344 write_int_eeprom d'49'
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345
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346 return
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347
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348 test_charger2:
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349 btfss charge_started ; Did the charger ever start?
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350 return ; No, quit!
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351
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352 bcf charge_started ; Clear flag
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353 ; Store incomplete/total cycles
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354 read_int_eeprom d'50' ; Read byte (stored in EEDATA)
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355 movff EEDATA,temp1 ; Low byte
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356 read_int_eeprom d'51' ; Read byte (stored in EEDATA)
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357 movff EEDATA,temp2 ; high byte
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358 bcf STATUS,C
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359 movlw d'1'
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360 addwf temp1
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361 movlw d'0'
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362 addwfc temp2
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363 movff temp1,EEDATA
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364 write_int_eeprom d'50' ; write byte stored in EEDATA
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365 movff temp2,EEDATA
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366 write_int_eeprom d'51' ; write byte stored in EEDATA
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367 return
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368
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369 show_cv_active: ; CV mode
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370 call set_LEDr
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371 WAITMS d'100'
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372 call clear_LEDr
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373 WAITMS d'100'
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374 call set_LEDr
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375 bsf charge_done ; Charge cycle finished
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376 return
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377
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378 show_cc_active: ; CC mode
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379 call set_LEDr
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380 bsf charge_started ; Charger started in CC mode
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381 bcf charge_done ; Charge cycle not finished
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382 return
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383
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384
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385 timeout_premenu:
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386 btfss premenu ; is "Menu?" displayed?
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387 return ; No
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388 incf timeout_counter3,F ; Yes...
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389 GETCUSTOM8 d'4' ; loads premenu_timeout into WREG
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390 cpfsgt timeout_counter3 ; ... longer then premenu_timeout
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391 return ; No!
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392 bcf premenu ; Yes, so clear "Menu?" and clear pre_menu bit
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393
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394 call PLED_topline_box_clear ; Clears Bar at the top
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395
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396 btfsc gauge_mode
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397 bra timeout_premenu2 ; Skip in Gauge mode
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398 btfsc FLAG_apnoe_mode
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399 bra timeout_premenu2 ; Skip in Apnoe mode
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400 call PLED_tissue_saturation_graph ; rewrite graph
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401 timeout_premenu2:
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402 call update_surf_press ; rewrite serial number
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403 call PLED_serial ; rewrite serial number
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404 clrf timeout_counter3 ; Also clear timeout
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405 bcf switch_left ; and debounce switches
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406 bcf switch_right
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407 return
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408
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409 test_switches_surfmode: ; checks switches in surfacemode
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410 btfsc switch_left
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411 bra test_switches_surfmode2
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412 btfsc switch_right
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413 bra test_switches_surfmode3
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414
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415 ; No button press, reset timer0
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416 bcf T0CON,TMR0ON ; Stop Timer 0
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417 bcf INTCON,TMR0IF ; Clear flag
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418 clrf TMR0H
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419 clrf TMR0L
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420 bcf INTCON,INT0IF ; Clear flag
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421 bcf INTCON3,INT1IF ; Clear flag
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422 return
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423
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424 test_switches_surfmode3:
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425 bcf switch_right
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426 call PLED_topline_box ; Write a filled bar at the top
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427 WIN_INVERT .1 ; Init new Wordprocessor
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428 DISPLAYTEXT .4 ;Menu?
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429 WIN_INVERT .0 ; Init new Wordprocessor
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430 bsf premenu
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431 clrf timeout_counter2
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432 return
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433
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434 test_switches_surfmode2:
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435 bcf switch_left
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436 btfss premenu
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437 return
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438 bsf menubit ; Enter Menu!
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439 return
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440
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441
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442
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443 timeout_surfmode:
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444 incf timeout_counter2,F ; increase timeout counter
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445 GETCUSTOM8 d'3' ; loads surfloop_timeout into WREG
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446 addlw d'5' ; adds five seconds in case timout=zero!
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447 btfsc STATUS,C ; > 255?
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448 movlw d'255' ; Set to 255...
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449 decf WREG,F ; Limit to 254
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450 cpfsgt timeout_counter2 ; Compare with timeout_counter2
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451 return ; return, no timeout
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452 bsf sleepmode ; Set Flag
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453 return ; Return
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