Mercurial > public > mk2
annotate code_part1/OSTC_code_asm_part1/start.asm @ 341:2144f19fa1eb
BUGFIX protect against ISR changing pressure/temperature while reading it.
| author | JeanDo |
|---|---|
| date | Fri, 20 May 2011 00:48:30 +0200 |
| parents | 6544f79e298c |
| children | 797e2ac42d24 |
| rev | line source |
|---|---|
| 0 | 1 ; OSTC - diving computer code |
| 2 ; Copyright (C) 2008 HeinrichsWeikamp GbR | |
| 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 | |
| 119 | 27 movff STKPTR,temp10 |
| 235 | 28 clrf temp10+1 |
| 29 | |
| 0 | 30 call init |
| 306 | 31 |
| 32 read_int_eeprom d'92' ; Read number of CF used in this firmware | |
| 33 movlw 0xFF ; First start value | |
| 34 cpfseq EEDATA ; Compare | |
| 35 bra start2 ; Normal power-on/hard reset boot | |
| 36 bra first_start ; Reset and jump to surfmode | |
| 37 start2: | |
| 0 | 38 btfsc divemode ; Reset from Divemode? |
| 39 call PLED_resetdebugger ; Yes! Something went wrong, show reset informations | |
| 306 | 40 start3: |
| 0 | 41 clrf STKPTR ; Clear Stackpointer |
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42 lfsr FSR0, 10Bh ; Clear rambank 1-9, do not delete RTC registers |
| 0 | 43 clear_rambank: |
| 44 clrf POSTINC0 | |
| 45 movlw 0x0A | |
| 46 cpfseq FSR0H ; Bank 9 done? | |
| 47 bra clear_rambank ; clear... | |
| 48 | |
| 49 ; Defaults for RTC | |
| 50 call disable_rs232 ; disable UART module | |
| 51 call RTCinit ; reset RTC | |
| 52 | |
| 53 ; Air pressure compensation after reset | |
| 54 call get_calibration_data ; Get calibration data from pressure sensor | |
| 55 | |
| 56 bcf pressure_refresh | |
| 57 wait_start_pressure: | |
| 58 btfss pressure_refresh ; Air pressure compensation | |
| 59 bra wait_start_pressure | |
| 60 | |
| 61 clrf rel_pressure+0 | |
| 62 clrf rel_pressure+1 | |
| 63 clrf surface_interval+0 | |
| 64 clrf surface_interval+1 | |
| 65 | |
| 66 bsf sleepmode ; Routine only works in sleepmode... | |
| 67 call pressuretest_sleep_fast ; Gets pressure without averaging (faster!) | |
| 68 bcf sleepmode ; Normal mode again | |
| 233 | 69 |
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70 SAFE_2BYTE_COPY amb_pressure, last_surfpressure |
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71 movff last_surfpressure+0,last_surfpressure_15min+0 |
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72 movff last_surfpressure+1,last_surfpressure_15min+1 |
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73 movff last_surfpressure+0,last_surfpressure_30min+0 |
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74 movff last_surfpressure+1,last_surfpressure_30min+1 ; Rests all airpressure registers |
| 0 | 75 |
| 233 | 76 ; Extra power-up reset (JeanDo) |
| 77 ifdef TESTING | |
| 78 call do_menu_reset_all2 | |
| 79 endif | |
| 80 | |
| 0 | 81 ; reset deco data |
| 236 | 82 ostc_debug '0' ; Sends debug-information to screen if debugmode active |
| 83 | |
| 0 | 84 movlw d'79' ; 79% N2 |
| 197 | 85 movff WREG,char_I_N2_ratio ; No He at the Surface |
| 236 | 86 clrf WREG ; Use as buffer |
| 87 movff WREG,char_I_He_ratio ; No He at the Surface | |
| 88 movff WREG,char_I_step_is_1min ; 2 second deco mode | |
| 89 GETCUSTOM8 d'11' ; Saturation multiplier % | |
| 90 movff WREG,char_I_saturation_multiplier | |
| 91 GETCUSTOM8 d'12' ; Desaturation multiplier % | |
| 92 movff WREG,char_I_desaturation_multiplier | |
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93 SAFE_2BYTE_COPY amb_pressure,int_I_pres_respiration ; copy for deco routine |
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94 movff int_I_pres_respiration+0,int_I_pres_surface+0 ; copy for desat routine |
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95 movff int_I_pres_respiration+1,int_I_pres_surface+1 |
| 0 | 96 |
| 116 | 97 call deco_clear_tissue ; |
| 98 call deco_calc_desaturation_time ; calculate desaturation time | |
| 99 call deco_clear_CNS_fraction ; clear CNS | |
| 0 | 100 call calc_deko_surfmode ; calculate desaturation every minute |
| 116 | 101 call deco_calc_wo_deco_step_1_min ; calculate deco in surface mode |
| 0 | 102 movlb b'00000001' ; select ram bank 1 |
| 103 | |
| 104 ; check firmware and reset Custom Functions after an update | |
| 105 movlw LOW 0x101 | |
| 106 movwf EEADR | |
| 107 movlw HIGH 0x101 | |
| 108 movwf EEADRH | |
| 109 call read_eeprom ; read current version x | |
| 110 movff EEDATA,temp1 | |
| 111 incf EEADR,F ; set to 0x102 | |
| 112 call read_eeprom ; read current version y | |
| 113 movff EEDATA,temp2 | |
| 114 clrf EEADRH ; Reset EEADRH | |
| 115 | |
| 116 movlw softwareversion_x | |
| 117 cpfseq temp1 ; compare version x | |
| 118 bra check_firmware_new ; is not equal -> reset CF and store new version in EEPROM | |
| 119 | |
| 120 movlw softwareversion_y | |
| 121 cpfseq temp2 ; compare version y | |
| 122 bra check_firmware_new ; is not equal -> reset CF and store new version in EEPROM | |
| 123 bra restart ; x and y are equal -> do not reset cf | |
| 124 | |
| 125 check_firmware_new: | |
| 126 movlw LOW 0x101 ; store current version in EEPROM | |
| 127 movwf EEADR | |
| 128 movlw HIGH 0x101 | |
| 129 movwf EEADRH | |
| 130 movlw softwareversion_x | |
| 131 movwf EEDATA | |
| 132 call write_eeprom ; write version x | |
| 133 incf EEADR,F ; set to 0x102 | |
| 134 movlw softwareversion_y | |
| 135 movwf EEDATA | |
| 136 call write_eeprom ; write version y | |
| 137 clrf EEADRH ; Reset EEADRH | |
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138 goto reset_all_cf ; resets all custom functions bank0 and bank1 and jumps to "restart" |
| 0 | 139 |
| 140 restart: | |
| 21 | 141 bcf LED_red |
| 142 bcf LED_blue ; all LEDs off | |
| 43 | 143 GETCUSTOM8 d'48' ; time correction value |
| 144 movff WREG, time_correction_value ; store in Bank0 register | |
| 15 | 145 |
| 146 clrf flag1 ; clear all flags | |
| 147 clrf flag2 | |
| 148 clrf flag3 | |
| 149 clrf flag4 | |
| 150 clrf flag5 | |
| 151 clrf flag6 | |
| 152 clrf flag7 | |
| 153 clrf flag8 | |
| 154 clrf flag9 | |
| 155 clrf flag10 | |
| 156 clrf flag11 | |
| 157 clrf flag12 | |
| 158 clrf flag13 | |
| 159 clrf flag14 | |
| 160 clrf flag15 | |
| 153 | 161 |
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162 ; Should we set win_flip_screen ? |
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163 bsf flag1,0 ; Precondition to yes |
| 153 | 164 clrf EEADRH ; Reset EEADRH |
| 165 read_int_eeprom d'1' | |
| 166 movlw .7 | |
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167 cpfsgt EEDATA ; serial > 2048 (Mk2n hardware) ? |
| 153 | 168 bcf flag1,0 |
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169 incf EEDATA,W ; serial == 65535 (emulation) ? |
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170 btfsc STATUS,Z |
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171 bcf flag1,0 |
| 153 | 172 movff flag1,win_flags ; store in Bank0 register |
| 173 clrf flag1 ; Clear flag1 (again) | |
| 239 | 174 |
| 175 ; Select high altitude (Fly) mode? | |
| 176 movff last_surfpressure_30min+0,sub_b+0 | |
| 177 movff last_surfpressure_30min+1,sub_b+1 | |
| 178 movlw HIGH d'880' | |
| 179 movwf sub_a+1 | |
| 180 movlw LOW d'880' ; Hard-wired 880mBar | |
| 181 movwf sub_a+0 | |
| 182 call sub16 ; sub_c = sub_a - sub_b | |
| 183 btfss neg_flag ; Result negative (Ambient>880mBar)? | |
| 184 bsf high_altitude_mode ; No, Set Flag! | |
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185 |
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186 ; Should we disable sleep (hardware emulator) |
| 154 | 187 movlw .0 |
| 188 cpfsgt EEDATA ; >256 | |
| 167 | 189 bsf nsm ; NO-SLEEP-MODE : for hardware debugging |
| 153 | 190 |
| 142 | 191 call gassetup_sort_gaslist ; Sorts Gaslist according to change depth |
| 0 | 192 WIN_TOP .0 |
| 193 WIN_LEFT .0 | |
| 194 WIN_FONT FT_SMALL | |
| 195 WIN_INVERT .0 ; Init new Wordprocessor | |
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196 setf WREG |
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197 movff WREG,win_color1 ; Beware: win_color1 is bank0, and we are bank1 currently |
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198 movff WREG,win_color2 |
| 0 | 199 call I2CReset ; Just in Case any I2C device blocks the Bus |
| 200 movff last_surfpressure_30min+0,last_surfpressure+0 ; Use 30min old airpressure | |
| 201 movff last_surfpressure_30min+1,last_surfpressure+1 ; Use 30min old airpressure | |
| 202 | |
| 203 ; Check if new CF were added in the last firmware version | |
| 204 clrf EEADRH | |
| 205 read_int_eeprom d'92' ; Read number of CF used in this firmware | |
| 206 movlw max_custom_number ; Defined in definitions.asm | |
| 207 cpfseq EEDATA ; Compare with last version | |
| 208 bra restart_01 ; New CF, show warning and store new number | |
| 209 bra restart_1 ; No new CF, continue with boot | |
| 210 restart_01: | |
| 211 ; Save new number of current CF count | |
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212 call PLED_boot ; PLED boot (Incl. Clear Screen!) |
| 0 | 213 rcall display_new_cf_installed; Show warning |
| 214 movlw max_custom_number ; Defined in definitions.asm | |
| 215 movwf EEDATA | |
| 216 write_int_eeprom d'92' ; Store number of CF used in this firmware | |
| 217 | |
| 218 restart_1: | |
| 219 | |
| 220 ; Set Debug mode? | |
| 221 read_int_eeprom d'39' | |
| 222 bsf debug_mode | |
| 223 movlw d'1' | |
| 224 cpfseq EEDATA | |
| 225 bcf debug_mode ; clear flag if <> 1 | |
| 226 | |
| 227 goto surfloop ; Jump to Surfaceloop! | |
| 228 | |
| 229 | |
| 230 display_new_cf_installed: | |
| 231 call PLED_new_cf_warning ; Display new CF warning screen | |
| 232 movlw d'20' ; timeout for warning screen | |
| 233 bra startup_screen3a ; Will RETURN after timeout or button press | |
| 197 | 234 |
| 235 ;============================================================================= | |
| 236 ; Setup all flags and parameters for divemode and simulator computations. | |
| 237 ; | |
| 238 restart_set_modes_and_flags: ; "Call"ed from divemode, as well! | |
| 0 | 239 bcf gauge_mode |
| 240 bcf FLAG_const_ppO2_mode | |
| 241 bcf FLAG_apnoe_mode | |
| 45 | 242 |
| 243 ; Pre-load modes for OC, GF 90/90 and no Aponoe or Gauge. | |
| 197 | 244 bcf no_deco_customviews ; Clear no-deco-mode-flag |
| 45 | 245 movlw d'0' |
| 197 | 246 movff WREG,char_I_deco_model ; Clear Flagbyte |
| 45 | 247 ; Load GF values into RAM |
| 248 movlw d'90' | |
| 197 | 249 movff WREG,char_I_GF_Low_percentage |
| 250 movff WREG,char_I_GF_High_percentage ; Set to 90/90... | |
| 0 | 251 clrf EEADRH |
| 197 | 252 read_int_eeprom d'34' ; Read deco data |
| 253 movlw d'1' ; Gauge mode | |
| 0 | 254 cpfseq EEDATA |
| 197 | 255 bra restart_3_test_ppO2_mode ; check for ppO2 mode |
| 256 bsf gauge_mode ; Set flag for gauge mode | |
| 257 bsf no_deco_customviews ; Set no-deco-mode-flag | |
| 258 return ; start in Surfacemode | |
| 0 | 259 restart_3_test_ppO2_mode: |
| 197 | 260 movlw d'2' ; const ppO2 mode |
| 0 | 261 cpfseq EEDATA |
| 197 | 262 bra restart_3_test_apnoe_mode; check for apnoe mode |
| 263 bsf FLAG_const_ppO2_mode ; Set flag for ppO2 mode | |
| 264 return ; start in Surfacemode | |
| 0 | 265 restart_3_test_apnoe_mode: |
| 197 | 266 movlw d'3' ; Apnoe mode |
| 0 | 267 cpfseq EEDATA |
| 197 | 268 bra restart_4_test_gf_mode ; check for GF OC mode |
| 269 bsf FLAG_apnoe_mode ; Set flag for Apnoe Mode | |
| 270 bsf no_deco_customviews ; Set no-deco-mode-flag | |
| 271 return ; start in Surfacemode | |
| 0 | 272 restart_4_test_gf_mode: |
| 197 | 273 movlw d'4' ; GF OC mode |
| 0 | 274 cpfseq EEDATA |
| 197 | 275 bra restart_5_test_gfO2_mode ; check for GF CC mode |
| 0 | 276 movlw d'1' |
| 197 | 277 movff WREG,char_I_deco_model ; Set Flagbyte for GF method |
| 45 | 278 ; Load GF values into RAM |
| 197 | 279 GETCUSTOM8 d'32' ; GF low |
| 280 movff EEDATA,char_I_GF_Low_percentage | |
| 281 GETCUSTOM8 d'33' ; GF high | |
| 282 movff EEDATA,char_I_GF_High_percentage | |
| 283 return ; start in Surfacemode | |
| 0 | 284 restart_5_test_gfO2_mode: |
| 197 | 285 movlw d'5' ; GF CC mode |
| 0 | 286 cpfseq EEDATA |
| 197 | 287 return ; Start in Surfacemode |
| 288 bsf FLAG_const_ppO2_mode ; Set flag for ppO2 mode | |
| 0 | 289 movlw d'1' |
| 197 | 290 movff WREG,char_I_deco_model ; Set Flagbyte for GF method |
| 137 | 291 ; Load GF values into RAM |
| 197 | 292 GETCUSTOM8 d'32' ; GF low |
| 163 | 293 movff EEDATA,char_I_GF_Low_percentage |
| 197 | 294 GETCUSTOM8 d'33' ; GF high |
| 163 | 295 movff EEDATA,char_I_GF_High_percentage |
| 197 | 296 return ; start in Surfacemode |
| 297 | |
| 298 ;============================================================================= | |
| 0 | 299 |
| 300 startup_screen1: | |
| 301 call PLED_ClearScreen | |
| 302 call PLED_startupscreen1 ; show startup sreen | |
| 303 startup_screen1_2: | |
| 304 movlw d'10' ; timeout for startup screen | |
| 305 movwf temp1 | |
| 306 WAITMS d'200' | |
| 307 bcf switch_left | |
| 308 bcf switch_right | |
| 309 screen1_loop: | |
| 310 btfsc onesecupdate ; do every second tasks? | |
| 311 call set_dive_modes ; tests if depth>threshold | |
| 312 btfsc onesecupdate ; do every second tasks? | |
| 313 decf temp1,F | |
| 314 bcf onesecupdate ; every second tasks done | |
| 315 | |
| 316 tstfsz temp1 ; timout occured? | |
| 317 bra screen1_loop2 ; no | |
| 318 return | |
| 319 | |
| 320 screen1_loop2: | |
| 321 btfsc divemode ; Divemode active? | |
| 322 return | |
| 323 btfsc switch_left ; Ack? | |
| 324 return | |
| 325 btfsc switch_right ; Ack? | |
| 326 return | |
| 327 bra screen1_loop ; loop screen | |
| 328 | |
| 329 startup_screen2: | |
| 330 call PLED_ClearScreen ; Page 1 | |
| 331 call PLED_startupscreen2 ; show startup sreen | |
| 332 bra startup_screen1_2 | |
| 333 | |
| 334 startup_screen3a:; WARNING: Also used for decodescriptions and CF Warning screen! | |
| 335 movwf temp1 | |
| 336 WAITMS d'200' | |
| 337 bcf switch_left | |
| 338 bcf switch_right | |
| 339 screen3_loop: | |
| 340 btfsc onesecupdate ; do every second tasks? | |
| 341 call set_dive_modes ; tests if depth>threshold | |
| 342 | |
| 343 btfsc onesecupdate ; do every second tasks? | |
| 344 decf temp1,F | |
| 345 bcf onesecupdate ; every second tasks done | |
| 346 | |
| 347 tstfsz temp1 ; timout occured? | |
| 348 bra screen3_loop2 ; no | |
| 349 return | |
| 350 screen3_loop2: | |
| 351 btfsc switch_left ; Ack? | |
| 352 return | |
| 353 btfsc switch_right ; Ack? | |
| 354 return | |
| 355 bra screen3_loop ; loop screen | |
| 356 | |
| 306 | 357 first_start: |
| 358 movlw max_custom_number ; Defined in definitions.asm | |
| 359 movwf EEDATA | |
| 360 write_int_eeprom d'92' ; Store number of CF used in this firmware | |
| 361 bra start3 ; continue with normal start | |
| 362 | |
| 0 | 363 init: |
| 364 movlw b'01101100' ; 4MHz (x4 PLL) | |
| 365 movwf OSCCON | |
| 366 | |
| 367 movlw b'00010001' ; I/O Ports | |
| 368 movwf TRISA | |
| 369 clrf PORTA | |
| 370 movlw b'00000011' | |
| 371 movwf TRISB | |
| 372 clrf PORTB | |
| 373 movlw b'11011101' ; UART | |
| 374 movwf TRISC | |
| 375 clrf PORTC | |
| 376 movlw b'00000000' | |
| 377 movwf TRISE | |
| 378 clrf PORTE | |
| 379 movlw b'00000000' | |
| 380 movwf TRISD | |
| 381 clrf PORTD | |
| 382 | |
| 383 movlw b'01000000' ; Bit6: PPL enable | |
| 384 movwf OSCTUNE | |
| 385 | |
| 386 movlw b'00011111' ; Timer0 | |
| 387 movwf T0CON | |
| 388 | |
| 389 movlw b'00000111' ; Timer1 | |
| 390 movwf T1CON | |
| 391 | |
| 392 movlw b'11010000' ; Interrups | |
| 393 movwf INTCON | |
| 394 movlw b'00000101' | |
| 395 movwf INTCON2 | |
| 396 movlw b'00001000' | |
| 397 movwf INTCON3 | |
| 398 movlw b'00100001' | |
| 399 movwf PIE1 | |
| 400 movlw b'00000000' | |
| 401 movwf PIE2 | |
| 402 clrf RCON | |
| 403 | |
| 404 movlw b'00000000' ; A/D Converter | |
| 405 movwf ADCON0 | |
| 406 movlw b'00001110' | |
| 407 movwf ADCON1 | |
| 408 movlw b'10001010' ; Right justified | |
| 409 movwf ADCON2 | |
| 410 | |
| 411 clrf SSPCON1 ; Set I²C Mode | |
| 412 movlw b'00000000' | |
| 413 movwf SSPSTAT | |
| 414 movlw b'00101000' | |
| 415 movwf SSPCON1 | |
| 416 movlw b'00000000' | |
| 417 movwf SSPCON2 | |
| 418 movlw d'8' ; 400kHz I2C clock @ 16MHz Fcy | |
| 419 movwf SSPADD | |
| 420 | |
| 421 clrf CCP1CON ; PWM Module off | |
| 422 clrf ECCP1CON ; PWM Module off | |
| 423 | |
| 424 movlw b'00000111' ; Comperator Module off | |
| 425 movwf CMCON | |
| 426 | |
| 427 movlw b'00100000' | |
| 428 movwf CANCON ; ECAN Module OFF | |
| 429 | |
| 430 movlw b'00100100' ; UART | |
| 431 movwf TXSTA | |
| 432 movlw b'10010000' | |
| 433 movwf RCSTA | |
| 434 movlw b'00001000' | |
| 435 movwf BAUDCON | |
| 436 clrf SPBRGH | |
| 437 movlw d'34' | |
| 438 movwf SPBRG | |
| 439 clrf RCREG | |
| 440 clrf PIR1 | |
| 441 return |