Mercurial > public > mk2
annotate code_part1/OSTC_code_asm_part1/start.asm @ 841:8d73c9dcf851 default tip
3.16 release
| author | mh |
|---|---|
| date | Tue, 24 Oct 2023 10:38:04 +0200 |
| parents | 2750099bf5bb |
| children |
| rev | line source |
|---|---|
| 815 | 1 ; OSTC Mk.2, 2N and 2C - diving computer code |
|
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2 ; Copyright (C) 2015 HeinrichsWeikamp GbR |
| 0 | 3 |
| 4 ; This program is free software: you can redistribute it and/or modify | |
| 5 ; it under the terms of the GNU General Public License as published by | |
| 6 ; the Free Software Foundation, either version 3 of the License, or | |
| 7 ; (at your option) any later version. | |
| 8 | |
| 9 ; This program is distributed in the hope that it will be useful, | |
| 10 ; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 ; GNU General Public License for more details. | |
| 13 | |
| 14 ; You should have received a copy of the GNU General Public License | |
| 15 ; along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 16 | |
| 17 | |
| 18 ; Start and init | |
| 19 ; written by: Matthias Heinrichs, info@heinrichsweikamp.com | |
| 20 ; written: 10/13/04 | |
| 21 ; last updated: 06/24/08 | |
| 22 ; known bugs: | |
| 23 ; ToDo: | |
| 24 | |
| 25 start: | |
| 26 movlb b'00000001' ; ram bank 1 selected | |
| 521 | 27 movff STKPTR,temp10 ; Save stack pointer, for crash reports. |
| 235 | 28 clrf temp10+1 |
| 0 | 29 call init |
| 30 btfsc divemode ; Reset from Divemode? | |
| 681 | 31 call DISP_resetdebugger ; Yes! Something went wrong, show reset informations |
| 306 | 32 start3: |
| 0 | 33 clrf STKPTR ; Clear Stackpointer |
| 359 | 34 lfsr FSR0,year+1 ; Clear rambank 1-9, do not delete RTC registers |
| 0 | 35 clear_rambank: |
| 36 clrf POSTINC0 | |
| 37 movlw 0x0A | |
| 38 cpfseq FSR0H ; Bank 9 done? | |
| 39 bra clear_rambank ; clear... | |
| 40 | |
| 41 ; Defaults for RTC | |
| 42 call disable_rs232 ; disable UART module | |
| 43 call RTCinit ; reset RTC | |
| 44 | |
| 45 ; Air pressure compensation after reset | |
| 46 call get_calibration_data ; Get calibration data from pressure sensor | |
| 714 | 47 banksel flag5 |
| 713 | 48 bcf no_sensor_int ; Enable sensor interrupt |
| 0 | 49 bcf pressure_refresh |
| 50 wait_start_pressure: | |
| 51 btfss pressure_refresh ; Air pressure compensation | |
| 52 bra wait_start_pressure | |
| 53 | |
| 54 clrf rel_pressure+0 | |
| 55 clrf rel_pressure+1 | |
| 56 clrf surface_interval+0 | |
| 57 clrf surface_interval+1 | |
| 58 | |
| 59 bsf sleepmode ; Routine only works in sleepmode... | |
| 60 call pressuretest_sleep_fast ; Gets pressure without averaging (faster!) | |
| 61 bcf sleepmode ; Normal mode again | |
| 233 | 62 |
| 521 | 63 ; Extra power-up reset (JeanDo emulator) |
| 64 Ifdef TESTING | |
| 65 call reset_gases | |
| 66 call reset_all_cf | |
| 67 call reset_external_eeprom | |
| 68 | |
| 69 movlw LOW(.1000) | |
| 70 movwf amb_pressure+0 | |
| 71 movlw HIGH(.1000) | |
| 72 movwf amb_pressure+1 | |
| 73 Endif | |
| 74 | |
| 75 ; Get real pressure (if not in emulator mode) | |
| 76 Ifndef TESTING | |
| 507 | 77 SAFE_2BYTE_COPY amb_pressure_avg, amb_pressure ; copy for compatibility |
| 78 Endif | |
| 79 | |
| 80 movff amb_pressure+0,last_surfpressure+0 | |
| 81 movff amb_pressure+1,last_surfpressure+1 | |
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82 movff last_surfpressure+0,last_surfpressure_15min+0 |
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83 movff last_surfpressure+1,last_surfpressure_15min+1 |
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84 movff last_surfpressure+0,last_surfpressure_30min+0 |
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85 movff last_surfpressure+1,last_surfpressure_30min+1 ; Rests all airpressure registers |
| 0 | 86 |
| 87 ; reset deco data | |
| 236 | 88 ostc_debug '0' ; Sends debug-information to screen if debugmode active |
| 89 | |
| 0 | 90 movlw d'79' ; 79% N2 |
| 197 | 91 movff WREG,char_I_N2_ratio ; No He at the Surface |
| 236 | 92 clrf WREG ; Use as buffer |
| 93 movff WREG,char_I_He_ratio ; No He at the Surface | |
| 94 movff WREG,char_I_step_is_1min ; 2 second deco mode | |
| 95 GETCUSTOM8 d'11' ; Saturation multiplier % | |
| 96 movff WREG,char_I_saturation_multiplier | |
| 97 GETCUSTOM8 d'12' ; Desaturation multiplier % | |
| 98 movff WREG,char_I_desaturation_multiplier | |
| 507 | 99 movff amb_pressure+0,int_I_pres_respiration+0 ; copy for deco routine |
| 100 movff amb_pressure+1,int_I_pres_respiration+1 | |
| 101 movff int_I_pres_respiration+0,int_I_pres_surface+0 ; copy for desat routine | |
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102 movff int_I_pres_respiration+1,int_I_pres_surface+1 |
| 0 | 103 |
| 513 | 104 call deco_clear_tissue |
| 105 movlb b'00000001' ; select ram bank 1 | |
| 106 | |
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107 call divemode_check_decogases ; Setup N2/He ratio array |
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108 |
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109 call calc_deko_surfmode ; calculate desaturation for one minute |
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110 |
| 116 | 111 call deco_calc_desaturation_time ; calculate desaturation time |
| 112 call deco_clear_CNS_fraction ; clear CNS | |
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113 movlb b'00000001' ; select ram bank 1 |
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114 |
| 412 | 115 clrf nofly_time+0 ; Reset NoFly |
| 116 clrf nofly_time+1 ; Reset NoFly | |
| 117 bcf nofly_active ; Clear flag | |
| 0 | 118 |
| 119 ; check firmware and reset Custom Functions after an update | |
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120 movlw d'1' |
| 0 | 121 movwf EEADR |
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122 movlw d'1' |
| 0 | 123 movwf EEADRH |
| 124 call read_eeprom ; read current version x | |
| 125 movff EEDATA,temp1 | |
| 126 incf EEADR,F ; set to 0x102 | |
| 127 call read_eeprom ; read current version y | |
| 128 movff EEDATA,temp2 | |
| 129 clrf EEADRH ; Reset EEADRH | |
| 130 | |
| 131 movlw softwareversion_x | |
| 838 | 132 ; cpfseq temp1 ; compare version x |
| 0 | 133 bra check_firmware_new ; is not equal -> reset CF and store new version in EEPROM |
| 134 | |
| 135 movlw softwareversion_y | |
| 136 cpfseq temp2 ; compare version y | |
| 137 bra check_firmware_new ; is not equal -> reset CF and store new version in EEPROM | |
| 138 bra restart ; x and y are equal -> do not reset cf | |
| 139 | |
| 140 check_firmware_new: | |
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141 movlw d'1' ; store current version in EEPROM |
| 0 | 142 movwf EEADR |
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143 movlw d'1' |
| 0 | 144 movwf EEADRH |
| 145 movlw softwareversion_x | |
| 146 movwf EEDATA | |
| 147 call write_eeprom ; write version x | |
| 148 incf EEADR,F ; set to 0x102 | |
| 149 movlw softwareversion_y | |
| 150 movwf EEDATA | |
| 151 call write_eeprom ; write version y | |
| 152 clrf EEADRH ; Reset EEADRH | |
| 392 | 153 |
| 500 | 154 ; After update resets |
| 155 ; Reset brightness to ECO | |
| 578 | 156 movlw LOW 0x103 |
| 500 | 157 movwf EEADR |
| 578 | 158 movlw HIGH 0x103 |
| 681 | 159 movwf EEADRH ; DISPLAY brightness (=0: Eco, =1: High) |
| 500 | 160 movlw .0 |
| 161 movwf EEDATA | |
| 162 call write_eeprom ; write byte | |
| 649 | 163 clrf EEADRH ; Reset EEADRH |
| 164 | |
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165 ; Reset Setpoint depths |
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166 clrf EEDATA |
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167 write_int_eeprom d'117' |
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168 write_int_eeprom d'118' |
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169 write_int_eeprom d'119' |
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170 ; SP Mode (Manual) |
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171 write_int_eeprom d'116' |
| 838 | 172 call reset_all_cf_bank2 ; Reset CF64-93 with this update.... |
| 796 | 173 |
| 0 | 174 restart: |
| 720 | 175 ; check for time/date vault |
| 176 movlw .1 | |
| 177 movwf EEADRH | |
| 178 read_int_eeprom .5 | |
| 179 movlw 0xAA | |
| 180 cpfseq EEDATA ; 0xAA in EEPROM Bank1, Byte 5? | |
| 181 bra restart0 ; No | |
| 182 | |
| 183 movlw 0x00 | |
| 184 movwf EEDATA | |
| 185 write_int_eeprom d'5' ; clear flag | |
| 186 read_int_eeprom .6 | |
| 187 movff EEDATA,year | |
| 188 read_int_eeprom .7 | |
| 189 movff EEDATA,month | |
| 190 read_int_eeprom .8 | |
| 191 movff EEDATA,day | |
| 192 read_int_eeprom .9 | |
| 193 movff EEDATA,hours | |
| 194 read_int_eeprom .10 | |
| 195 movff EEDATA,mins | |
| 196 read_int_eeprom .11 | |
| 197 movff EEDATA,secs | |
| 198 call RTCinit ; Check limits | |
| 199 restart0: | |
| 200 clrf EEADRH | |
| 390 | 201 movlw b'00000011' |
| 202 movwf T3CON ; Timer3 with 32768Hz clock running | |
| 203 clrf TMR3L | |
| 537 | 204 nop |
| 390 | 205 clrf TMR3H |
| 21 | 206 bcf LED_red |
| 207 bcf LED_blue ; all LEDs off | |
| 43 | 208 GETCUSTOM8 d'48' ; time correction value |
| 209 movff WREG, time_correction_value ; store in Bank0 register | |
| 15 | 210 |
| 211 clrf flag1 ; clear all flags | |
| 212 clrf flag2 | |
| 213 clrf flag3 | |
| 214 clrf flag4 | |
| 215 clrf flag5 | |
| 216 clrf flag6 | |
| 217 clrf flag7 | |
| 218 clrf flag8 | |
| 219 clrf flag9 | |
| 220 clrf flag10 | |
| 221 clrf flag11 | |
| 222 clrf flag12 | |
| 223 clrf flag13 | |
| 224 clrf flag14 | |
| 225 clrf flag15 | |
| 730 | 226 clrf flag16 |
| 153 | 227 |
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228 ; Should we set win_flip_screen ? |
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229 bsf flag1,0 ; Precondition to yes |
| 153 | 230 clrf EEADRH ; Reset EEADRH |
| 231 read_int_eeprom d'1' | |
| 232 movlw .7 | |
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233 cpfsgt EEDATA ; serial > 2048 (Mk2n hardware) ? |
| 153 | 234 bcf flag1,0 |
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235 incf EEDATA,W ; serial == 65535 (emulation) ? |
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236 btfsc STATUS,Z |
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237 bcf flag1,0 |
| 153 | 238 movff flag1,win_flags ; store in Bank0 register |
| 239 clrf flag1 ; Clear flag1 (again) | |
| 239 | 240 |
| 241 ; Select high altitude (Fly) mode? | |
| 242 movff last_surfpressure_30min+0,sub_b+0 | |
| 243 movff last_surfpressure_30min+1,sub_b+1 | |
| 244 movlw HIGH d'880' | |
| 245 movwf sub_a+1 | |
| 246 movlw LOW d'880' ; Hard-wired 880mBar | |
| 247 movwf sub_a+0 | |
| 248 call sub16 ; sub_c = sub_a - sub_b | |
| 249 btfss neg_flag ; Result negative (Ambient>880mBar)? | |
| 250 bsf high_altitude_mode ; No, Set Flag! | |
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251 |
| 142 | 252 call gassetup_sort_gaslist ; Sorts Gaslist according to change depth |
| 0 | 253 WIN_TOP .0 |
| 254 WIN_LEFT .0 | |
| 255 WIN_FONT FT_SMALL | |
| 256 WIN_INVERT .0 ; Init new Wordprocessor | |
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257 setf WREG |
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258 movff WREG,win_color1 ; Beware: win_color1 is bank0, and we are bank1 currently |
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259 movff WREG,win_color2 |
| 0 | 260 call I2CReset ; Just in Case any I2C device blocks the Bus |
| 261 movff last_surfpressure_30min+0,last_surfpressure+0 ; Use 30min old airpressure | |
| 262 movff last_surfpressure_30min+1,last_surfpressure+1 ; Use 30min old airpressure | |
| 263 | |
| 264 ; Check if new CF were added in the last firmware version | |
| 265 clrf EEADRH | |
| 266 read_int_eeprom d'92' ; Read number of CF used in this firmware | |
| 267 movlw max_custom_number ; Defined in definitions.asm | |
| 268 cpfseq EEDATA ; Compare with last version | |
| 605 | 269 bra restart1 ; New CF, show warning and store new number |
| 270 bra restart2 ; No new CF, continue with boot | |
| 271 | |
| 272 restart1: | |
| 622 | 273 ; Reset all CF and Gases |
| 776 | 274 ; call reset_gases |
| 275 ; call reset_all_cf | |
| 605 | 276 ; Show info screen |
| 681 | 277 call DISPLAY_boot ; DISP boot (Incl. Clear Screen!) |
| 605 | 278 rcall display_new_cf_installed; Show info screen |
| 0 | 279 ; Save new number of current CF count |
| 280 movlw max_custom_number ; Defined in definitions.asm | |
| 281 movwf EEDATA | |
| 282 write_int_eeprom d'92' ; Store number of CF used in this firmware | |
| 283 | |
| 605 | 284 restart2: |
| 0 | 285 ; Set Debug mode? |
| 286 read_int_eeprom d'39' | |
| 287 bsf debug_mode | |
| 288 movlw d'1' | |
| 289 cpfseq EEDATA | |
| 290 bcf debug_mode ; clear flag if <> 1 | |
| 291 | |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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292 ; Check if logbook has been converted already (Internal EEPROM 0x100=0xAA) |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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293 movlw LOW 0x100 |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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294 movwf EEADR |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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295 movlw HIGH 0x100 |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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296 movwf EEADRH |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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297 call read_eeprom ; read byte |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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298 movlw 0xAA |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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299 cpfseq EEDATA ; is 0xAA already? |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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300 call logbook_convert_64k ; No, convert now (And write 0xAA to internal EEPROM 0x100) |
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Logbook converter (Needs ~8Minutes and is called one time). Backup your dives before use!!
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301 |
| 681 | 302 ; Set DISPLAY brightness flag |
| 578 | 303 movlw LOW 0x103 |
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304 movwf EEADR |
| 578 | 305 movlw HIGH 0x103 |
| 681 | 306 movwf EEADRH ; DISPLAY brightness (=0: Eco, =1: High) |
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307 call read_eeprom ; read byte |
| 681 | 308 bcf DISPLAY_brightness_high ; Eco mode |
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309 movlw .0 |
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310 cpfseq EEDATA ; High? |
| 681 | 311 bsf DISPLAY_brightness_high ; Yes! |
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312 |
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313 clrf EEADRH ; Reset EEADRH |
| 0 | 314 goto surfloop ; Jump to Surfaceloop! |
| 315 | |
| 316 | |
| 317 display_new_cf_installed: | |
| 681 | 318 call DISP_new_cf_warning ; Display new CF warning screen |
| 0 | 319 movlw d'20' ; timeout for warning screen |
| 320 bra startup_screen3a ; Will RETURN after timeout or button press | |
| 197 | 321 |
| 322 ;============================================================================= | |
| 323 ; Setup all flags and parameters for divemode and simulator computations. | |
| 324 ; | |
| 325 restart_set_modes_and_flags: ; "Call"ed from divemode, as well! | |
| 0 | 326 bcf gauge_mode |
| 327 bcf FLAG_const_ppO2_mode | |
| 328 bcf FLAG_apnoe_mode | |
| 45 | 329 |
| 330 ; Pre-load modes for OC, GF 90/90 and no Aponoe or Gauge. | |
| 197 | 331 bcf no_deco_customviews ; Clear no-deco-mode-flag |
| 45 | 332 movlw d'0' |
| 469 | 333 movff WREG,char_I_deco_model ; ZH-L16 |
| 45 | 334 ; Load GF values into RAM |
| 335 movlw d'90' | |
| 197 | 336 movff WREG,char_I_GF_Low_percentage |
| 337 movff WREG,char_I_GF_High_percentage ; Set to 90/90... | |
| 0 | 338 clrf EEADRH |
| 197 | 339 read_int_eeprom d'34' ; Read deco data |
| 340 movlw d'1' ; Gauge mode | |
| 0 | 341 cpfseq EEDATA |
| 197 | 342 bra restart_3_test_ppO2_mode ; check for ppO2 mode |
| 343 bsf gauge_mode ; Set flag for gauge mode | |
| 344 bsf no_deco_customviews ; Set no-deco-mode-flag | |
| 345 return ; start in Surfacemode | |
| 0 | 346 restart_3_test_ppO2_mode: |
| 197 | 347 movlw d'2' ; const ppO2 mode |
| 0 | 348 cpfseq EEDATA |
| 197 | 349 bra restart_3_test_apnoe_mode; check for apnoe mode |
| 350 bsf FLAG_const_ppO2_mode ; Set flag for ppO2 mode | |
| 351 return ; start in Surfacemode | |
| 0 | 352 restart_3_test_apnoe_mode: |
| 197 | 353 movlw d'3' ; Apnoe mode |
| 0 | 354 cpfseq EEDATA |
| 197 | 355 bra restart_4_test_gf_mode ; check for GF OC mode |
| 356 bsf FLAG_apnoe_mode ; Set flag for Apnoe Mode | |
| 357 bsf no_deco_customviews ; Set no-deco-mode-flag | |
| 358 return ; start in Surfacemode | |
| 0 | 359 restart_4_test_gf_mode: |
| 197 | 360 movlw d'4' ; GF OC mode |
| 0 | 361 cpfseq EEDATA |
| 197 | 362 bra restart_5_test_gfO2_mode ; check for GF CC mode |
| 0 | 363 movlw d'1' |
| 197 | 364 movff WREG,char_I_deco_model ; Set Flagbyte for GF method |
| 45 | 365 ; Load GF values into RAM |
| 667 | 366 rcall restart_load_gf |
| 197 | 367 return ; start in Surfacemode |
| 0 | 368 restart_5_test_gfO2_mode: |
| 197 | 369 movlw d'5' ; GF CC mode |
| 0 | 370 cpfseq EEDATA |
|
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371 bra restart_5_test_pSCR_mode ; check for pSCR-GF |
| 197 | 372 bsf FLAG_const_ppO2_mode ; Set flag for ppO2 mode |
| 0 | 373 movlw d'1' |
| 197 | 374 movff WREG,char_I_deco_model ; Set Flagbyte for GF method |
| 137 | 375 ; Load GF values into RAM |
| 667 | 376 rcall restart_load_gf |
| 197 | 377 return ; start in Surfacemode |
|
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378 restart_5_test_pSCR_mode: |
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379 movlw d'6' ; pSCR-GF |
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380 cpfseq EEDATA |
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381 return ; start in Surfacemode |
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382 bcf FLAG_const_ppO2_mode ; Clear flag for ppO2 mode |
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383 movlw d'1' |
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384 movff WREG,char_I_deco_model ; Set Flagbyte for GF method |
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385 ; Load GF values into RAM |
| 667 | 386 rcall restart_load_gf |
| 387 return ; start in Surfacemode | |
| 388 | |
| 389 restart_load_gf: | |
| 668 | 390 btfsc use_aGF |
| 667 | 391 bra restart_load_gf2 ; Use aGf |
| 392 ; Use normal GF | |
| 393 ; Load GF values into RAM | |
|
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394 GETCUSTOM8 d'32' ; GF low |
| 667 | 395 movff EEDATA,char_I_GF_Low_percentage |
|
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396 GETCUSTOM8 d'33' ; GF high |
| 667 | 397 movff EEDATA,char_I_GF_High_percentage |
| 398 return ; Done. | |
| 399 restart_load_gf2: ; Use aGf | |
| 400 ; Load GF values into RAM | |
| 401 GETCUSTOM8 d'67' ; aGF low | |
| 402 movff EEDATA,char_I_GF_Low_percentage | |
| 403 GETCUSTOM8 d'68' ; aGF high | |
| 404 movff EEDATA,char_I_GF_High_percentage | |
| 405 return ; Done. | |
| 406 | |
|
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|
407 |
| 197 | 408 ;============================================================================= |
| 0 | 409 |
| 410 startup_screen1: | |
| 681 | 411 call DISP_ClearScreen |
| 412 call DISP_startupscreen1 ; show startup sreen | |
| 0 | 413 startup_screen1_2: |
| 414 movlw d'10' ; timeout for startup screen | |
| 415 movwf temp1 | |
| 416 WAITMS d'200' | |
| 576 | 417 call wait_switches ; Waits until switches are released, resets flag if button stays pressed! |
| 0 | 418 screen1_loop: |
| 337 | 419 btfsc uart_dump_screen ; Asked to dump screen contains ? |
| 420 call dump_screen ; Yes! | |
| 421 | |
| 0 | 422 btfsc onesecupdate ; do every second tasks? |
| 423 call set_dive_modes ; tests if depth>threshold | |
| 424 btfsc onesecupdate ; do every second tasks? | |
| 425 decf temp1,F | |
| 426 bcf onesecupdate ; every second tasks done | |
| 427 | |
| 428 tstfsz temp1 ; timout occured? | |
| 429 bra screen1_loop2 ; no | |
| 430 return | |
| 431 | |
| 432 screen1_loop2: | |
| 433 btfsc divemode ; Divemode active? | |
| 434 return | |
| 435 btfsc switch_left ; Ack? | |
| 436 return | |
| 437 btfsc switch_right ; Ack? | |
| 438 return | |
| 439 bra screen1_loop ; loop screen | |
| 440 | |
| 441 startup_screen2: | |
| 681 | 442 call DISP_ClearScreen ; Page 1 |
| 443 call DISP_startupscreen2 ; show startup sreen | |
| 0 | 444 bra startup_screen1_2 |
| 445 | |
| 446 startup_screen3a:; WARNING: Also used for decodescriptions and CF Warning screen! | |
| 447 movwf temp1 | |
| 448 WAITMS d'200' | |
| 576 | 449 call wait_switches ; Waits until switches are released, resets flag if button stays pressed! |
| 0 | 450 screen3_loop: |
| 337 | 451 btfsc uart_dump_screen ; Asked to dump screen contains ? |
| 452 call dump_screen ; Yes! | |
| 453 | |
| 0 | 454 btfsc onesecupdate ; do every second tasks? |
| 455 call set_dive_modes ; tests if depth>threshold | |
| 456 | |
| 457 btfsc onesecupdate ; do every second tasks? | |
| 458 decf temp1,F | |
| 459 bcf onesecupdate ; every second tasks done | |
| 460 | |
| 461 tstfsz temp1 ; timout occured? | |
| 462 bra screen3_loop2 ; no | |
| 463 return | |
| 464 screen3_loop2: | |
| 465 btfsc switch_left ; Ack? | |
| 466 return | |
| 467 btfsc switch_right ; Ack? | |
| 468 return | |
| 469 bra screen3_loop ; loop screen | |
| 470 | |
| 337 | 471 ;============================================================================= |
| 472 | |
| 306 | 473 first_start: |
| 474 movlw max_custom_number ; Defined in definitions.asm | |
| 475 movwf EEDATA | |
| 476 write_int_eeprom d'92' ; Store number of CF used in this firmware | |
| 477 bra start3 ; continue with normal start | |
| 478 | |
| 0 | 479 init: |
| 466 | 480 movlw OSCCON_VALUE |
| 0 | 481 movwf OSCCON |
| 482 | |
| 483 movlw b'00010001' ; I/O Ports | |
| 484 movwf TRISA | |
| 485 clrf PORTA | |
| 486 movlw b'00000011' | |
| 487 movwf TRISB | |
| 488 clrf PORTB | |
| 489 movlw b'11011101' ; UART | |
| 490 movwf TRISC | |
| 491 clrf PORTC | |
| 492 movlw b'00000000' | |
| 493 movwf TRISE | |
| 494 clrf PORTE | |
| 495 movlw b'00000000' | |
| 496 movwf TRISD | |
| 497 clrf PORTD | |
| 498 | |
| 499 movlw b'01000000' ; Bit6: PPL enable | |
| 500 movwf OSCTUNE | |
| 501 | |
| 466 | 502 movlw T0CON_VALUE ; Timer0 |
| 0 | 503 movwf T0CON |
| 504 | |
| 505 movlw b'00000111' ; Timer1 | |
| 506 movwf T1CON | |
| 507 | |
| 508 movlw b'11010000' ; Interrups | |
| 509 movwf INTCON | |
| 510 movlw b'00000101' | |
| 511 movwf INTCON2 | |
| 512 movlw b'00001000' | |
| 513 movwf INTCON3 | |
| 514 movlw b'00100001' | |
| 515 movwf PIE1 | |
| 516 movlw b'00000000' | |
| 517 movwf PIE2 | |
| 518 clrf RCON | |
| 519 | |
| 520 movlw b'00000000' ; A/D Converter | |
| 521 movwf ADCON0 | |
| 522 movlw b'00001110' | |
| 523 movwf ADCON1 | |
| 524 movlw b'10001010' ; Right justified | |
| 525 movwf ADCON2 | |
| 526 | |
| 527 clrf SSPCON1 ; Set I²C Mode | |
| 537 | 528 movlw SSPSTAT_VALUE |
| 0 | 529 movwf SSPSTAT |
| 530 movlw b'00101000' | |
| 531 movwf SSPCON1 | |
| 532 movlw b'00000000' | |
| 533 movwf SSPCON2 | |
| 466 | 534 movlw SSPADD_VALUE ; I²C Speed |
| 0 | 535 movwf SSPADD |
| 536 | |
| 537 clrf CCP1CON ; PWM Module off | |
| 538 clrf ECCP1CON ; PWM Module off | |
| 539 | |
| 540 movlw b'00000111' ; Comperator Module off | |
| 541 movwf CMCON | |
| 542 | |
| 543 movlw b'00100000' | |
| 544 movwf CANCON ; ECAN Module OFF | |
| 545 | |
| 546 movlw b'00100100' ; UART | |
| 547 movwf TXSTA | |
| 548 movlw b'10010000' | |
| 549 movwf RCSTA | |
| 550 movlw b'00001000' | |
| 551 movwf BAUDCON | |
| 552 clrf SPBRGH | |
| 466 | 553 movlw SPBRG_VALUE |
| 0 | 554 movwf SPBRG |
| 555 clrf RCREG | |
| 556 clrf PIR1 | |
| 557 return |