Mercurial > public > hwos_code
annotate src/isr.asm @ 74:067b6bee5c78
1.2RC
| author | heinrichsweikamp |
|---|---|
| date | Mon, 10 Feb 2014 16:37:48 +0100 |
| parents | ec4d8503ec45 |
| children | f3062a611eef |
| rev | line source |
|---|---|
| 0 | 1 ;============================================================================= |
| 2 ; | |
| 3 ; File isr.asm | |
| 4 ; | |
| 5 ; INTERUPT subroutines | |
| 6 ; | |
| 7 ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved. | |
| 8 ;============================================================================= | |
| 9 ; HISTORY | |
| 10 ; 2011-05-24 : [jDG] Cleanups from initial Matthias code. | |
| 11 | |
| 12 #include "ostc3.inc" | |
| 13 #include "shared_definitions.h" ; Mailbox from/to p2_deco.c | |
| 14 #include "ms5541.inc" | |
| 15 #include "adc_lightsensor.inc" | |
| 16 | |
| 17 ;============================================================================= | |
| 18 | |
| 19 extern start | |
| 20 | |
| 21 isr_high CODE 0x0008 ;High Priority Interrups | |
| 22 bra HighInt | |
| 23 nop | |
| 24 nop | |
| 25 nop | |
| 26 nop | |
| 27 nop | |
| 28 nop | |
| 29 bra HighInt | |
| 30 | |
| 31 isr_low CODE 0x00018 ;Low Priority Interrups | |
| 32 ; *** low priority interrupts not used | |
| 33 retfie FAST ; Restores BSR, STATUS and WREG | |
| 34 | |
| 35 HighInt: | |
| 36 movff PRODL,isr_prod+0 | |
| 37 movff PRODH,isr_prod+1 | |
| 38 | |
| 39 ; Pressure sensor and others | |
| 40 btfsc PIR5,TMR7IF ; Timer 7 | |
| 41 rcall isr_tmr7 ; Every 62,5ms | |
| 42 | |
| 43 ; Buttons | |
| 44 btfsc PIR1,TMR1IF ; Timer1 INT (Button hold-down Timer) | |
| 45 rcall timer1int | |
| 46 btfsc INTCON,INT0IF ; Buttons | |
| 47 rcall isr_switch_right | |
| 48 btfsc INTCON3,INT1IF ; Buttons | |
| 49 rcall isr_switch_left | |
| 50 | |
| 51 ; IR-Link | |
| 52 btfsc PIR2,TMR3IF ; Timer 3 | |
| 53 rcall isr_timer3 ; IR-Link Timeout | |
| 54 btfsc PIR3,RC2IF ; UART2 | |
| 55 rcall isr_uart2 ; IR-Link | |
| 56 | |
| 57 ; RTCC | |
| 58 btfsc PIR3,RTCCIF ; Real-time-clock interrupt | |
| 59 rcall isr_rtcc ; May return in bank common! | |
| 60 | |
| 61 movff isr_prod+1,PRODH | |
| 62 movff isr_prod+0,PRODL | |
| 63 retfie FAST ; Restores BSR, STATUS and WREG | |
| 64 | |
| 65 ;============================================================================= | |
| 66 | |
| 67 isr_uart2: ; IR-Link | |
| 68 banksel RCREG2 | |
| 69 movf RCREG2,W | |
| 70 bcf RCSTA2,CREN ; Clear receiver status | |
| 71 bsf RCSTA2,CREN | |
| 72 banksel isr_backup | |
| 73 bcf PIR3,RC2IF ; Clear flag | |
| 74 incf ir_counter,F ; Increase counter | |
| 75 movff ir_counter,isr1_temp ; Copy | |
| 76 dcfsnz isr1_temp,F | |
| 77 movwf ir_buffer+.0 | |
| 78 dcfsnz isr1_temp,F | |
| 79 movwf ir_buffer+.1 | |
| 80 dcfsnz isr1_temp,F | |
| 81 movwf ir_buffer+.2 | |
| 82 dcfsnz isr1_temp,F | |
| 83 movwf ir_buffer+.3 | |
| 84 dcfsnz isr1_temp,F | |
| 85 movwf ir_buffer+.4 | |
| 86 dcfsnz isr1_temp,F | |
| 87 movwf ir_buffer+.5 | |
| 88 dcfsnz isr1_temp,F | |
| 89 movwf ir_buffer+.6 | |
| 90 dcfsnz isr1_temp,F | |
| 91 movwf ir_buffer+.7 | |
| 92 dcfsnz isr1_temp,F | |
| 93 movwf ir_buffer+.8 | |
| 94 dcfsnz isr1_temp,F | |
| 95 movwf ir_buffer+.9 | |
| 96 dcfsnz isr1_temp,F | |
| 97 movwf ir_buffer+.10 | |
| 98 dcfsnz isr1_temp,F | |
| 99 movwf ir_buffer+.11 | |
| 100 dcfsnz isr1_temp,F | |
| 101 movwf ir_buffer+.12 | |
| 102 dcfsnz isr1_temp,F | |
| 103 movwf ir_buffer+.13 | |
| 104 dcfsnz isr1_temp,F | |
| 105 movwf ir_buffer+.14 | |
| 106 dcfsnz isr1_temp,F | |
| 107 movwf ir_buffer+.15 | |
| 108 clrf TMR3L ; Preload timer | |
| 109 movlw .253 | |
| 110 movwf TMR3H | |
| 111 bsf T3CON,TMR3ON ; (Re)Start Timeout counter | |
| 112 return | |
| 113 | |
| 114 isr_timer3: ; IR-Link Timeout | |
| 115 bcf T3CON,TMR3ON ; Stop Timer3 | |
| 116 banksel isr_backup ; Select Bank0 for ISR data. | |
| 117 movlw .15 | |
| 118 cpfseq ir_counter ; Got exact 15bytes? | |
| 119 bra isr_timer3_1 ; No, test for 16bytes | |
| 120 bra isr_timer3_2 ; Got 15 bytes, compute local checksum | |
| 121 isr_timer3_1: | |
| 122 movlw .16 | |
| 123 cpfseq ir_counter ; Got exact 16bytes? | |
| 124 bra isr_timer3_exit ; No, exit | |
| 125 tstfsz ir_buffer+.15 ; Last byte=0x00 | |
| 126 bra isr_timer3_exit ; No, exit | |
| 127 | |
| 128 isr_timer3_2: | |
| 129 movff ir_buffer+.0,PRODL | |
| 130 clrf PRODH | |
| 131 movf ir_buffer+.1,W | |
| 132 rcall isr_timer3_checksum | |
| 133 movf ir_buffer+.2,W | |
| 134 rcall isr_timer3_checksum | |
| 135 movf ir_buffer+.3,W | |
| 136 rcall isr_timer3_checksum | |
| 137 movf ir_buffer+.4,W | |
| 138 rcall isr_timer3_checksum | |
| 139 movf ir_buffer+.5,W | |
| 140 rcall isr_timer3_checksum | |
| 141 movf ir_buffer+.6,W | |
| 142 rcall isr_timer3_checksum | |
| 143 movf ir_buffer+.7,W | |
| 144 rcall isr_timer3_checksum | |
| 145 movf ir_buffer+.8,W | |
| 146 rcall isr_timer3_checksum | |
| 147 movf ir_buffer+.9,W | |
| 148 rcall isr_timer3_checksum | |
| 149 movf ir_buffer+.10,W | |
| 150 rcall isr_timer3_checksum | |
| 151 movf ir_buffer+.11,W | |
| 152 rcall isr_timer3_checksum | |
| 153 movf ir_buffer+.12,W | |
| 154 rcall isr_timer3_checksum | |
| 155 | |
| 156 ; Compare checksum | |
| 157 movf ir_buffer+.13,W | |
| 158 cpfseq PRODL ; Checksum ok? | |
| 159 bra isr_timer3_exit ; No, exit | |
| 160 movf ir_buffer+.14,W | |
| 161 cpfseq PRODH ; Checksum ok? | |
| 162 bra isr_timer3_exit ; No, exit | |
| 163 | |
| 164 ; Checksum OK, copy results | |
| 165 movff ir_buffer+.1,hud_status_byte | |
| 166 movff ir_buffer+.2,o2_mv_sensor1+0 | |
| 167 movff ir_buffer+.3,o2_mv_sensor1+1 | |
| 168 movff ir_buffer+.4,o2_mv_sensor2+0 | |
| 169 movff ir_buffer+.5,o2_mv_sensor2+1 | |
| 170 movff ir_buffer+.6,o2_mv_sensor3+0 | |
| 171 movff ir_buffer+.7,o2_mv_sensor3+1 | |
| 172 movff ir_buffer+.8,o2_ppo2_sensor1 | |
| 173 movff ir_buffer+.9,o2_ppo2_sensor2 | |
| 174 movff ir_buffer+.10,o2_ppo2_sensor3 | |
| 175 movff ir_buffer+.11,hud_battery_mv+0 | |
| 176 movff ir_buffer+.12,hud_battery_mv+1 | |
| 177 | |
| 178 movlw ir_timeout_value ; multiples of 62,5ms | |
| 179 movwf ir_timeout ; Reload timeout | |
| 180 | |
| 181 isr_timer3_exit: | |
| 182 clrf ir_counter ; Clear pointer | |
| 183 bcf PIR2,TMR3IF ; Clear flag | |
| 184 return | |
| 185 | |
| 186 isr_timer3_checksum: | |
| 187 addwf PRODL,F | |
| 188 movlw .0 | |
| 189 addwfc PRODH,F | |
| 190 return | |
| 191 | |
| 192 ;============================================================================= | |
| 193 | |
| 194 isr_tmr7: ; each 62,5ms | |
| 195 bcf PIR5,TMR7IF ; clear flag | |
| 196 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
| 197 movlw .248 | |
| 198 movwf TMR7H ; -> Rollover after 2048 cycles -> 62,5ms | |
| 199 | |
| 200 banksel isr_backup | |
| 201 movf max_CCPR1L,W ; Dimm value | |
| 202 cpfseq CCPR1L ; = current PWM value? | |
| 203 rcall isr_dimm_tft ; No, adjust until max_CCPR1L=CCPR1L ! | |
| 204 | |
| 205 banksel isr_backup | |
| 206 decfsz ir_timeout,F ; IR Data still valid? | |
| 207 bra isr_tmr7_2 ; Yes, continue | |
| 208 ; timeout, clear IR-Data | |
| 209 | |
| 210 movlw ir_timeout_value ; multiples of 62,5ms | |
| 211 movwf ir_timeout ; Reload timeout | |
| 212 | |
| 213 banksel common | |
| 214 clrf o2_mv_sensor1+0 | |
| 215 clrf o2_mv_sensor1+1 | |
| 216 clrf o2_mv_sensor2+0 | |
| 217 clrf o2_mv_sensor2+1 | |
| 218 clrf o2_mv_sensor3+0 | |
| 219 clrf o2_mv_sensor3+1 | |
| 220 clrf hud_battery_mv+0 | |
| 221 clrf hud_battery_mv+1 | |
| 222 clrf hud_status_byte | |
| 223 clrf o2_ppo2_sensor1 | |
| 224 clrf o2_ppo2_sensor2 | |
| 225 clrf o2_ppo2_sensor3 | |
| 226 | |
| 227 isr_tmr7_2: | |
| 228 banksel common | |
| 229 btfss no_sensor_int ; No sensor interrupt (because it's addressed during sleep) | |
| 230 bra isr_sensor_state2 ; No, continue | |
| 231 banksel isr_backup ; Back to Bank0 ISR data | |
| 232 return | |
| 233 | |
| 234 isr_set_speed_to_normal: | |
| 235 ; Set Speed to normal | |
| 236 movlw b'01110010' | |
| 237 movwf OSCCON ; 16MHz INTOSC | |
| 238 movlw b'00000000' | |
| 239 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 240 movlw b'00001101' ; 1:2 Postscaler, 1:4 Prescaler, Timer 2 start -> 1960Hz (no-flicker) | |
| 241 movwf T2CON | |
| 242 btfss OSCCON,HFIOFS | |
| 243 bra $-2 ; Wait until clock is stable | |
| 244 return | |
| 245 | |
| 246 isr_sensor_state2: | |
| 247 banksel common | |
| 248 movff sensor_state_counter,WREG | |
| 249 btfss WREG,0 ; every 1/4 second | |
| 250 bsf quarter_second_update ; Set flag | |
| 251 movlw d'2' | |
| 252 cpfseq speed_setting ; Set to normal in case it's not already in normal speed mode | |
| 253 rcall isr_set_speed_to_normal | |
| 254 banksel isr_backup ; Back to Bank0 ISR data | |
| 255 | |
| 256 incf sensor_state_counter,F ; counts to eight for state maschine | |
| 257 | |
| 258 ; State 1: Clear flags and average registers, get temperature (51us) and start pressure integration (73,5us) | |
| 259 ; State 2: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 260 ; State 3: Get temperature (51us) and start pressure integration (73,5us) | |
| 261 ; State 4: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 262 ; State 5: Get temperature (51us) and start pressure integration (73,5us) | |
| 263 ; State 6: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 264 ; State 7: Get temperature (51us) and start pressure integration (73,5us) | |
| 265 ; State 8: Get pressure (51us), start temperature integration (73,5us), calculate temperature compensated pressure (233us) and build average for half-second update of tempperature and pressure | |
| 266 | |
| 267 movff sensor_state_counter,WREG ; WREG used as temp here... | |
| 268 dcfsnz WREG,F | |
| 269 bra sensor_int_state1_plus_restart ; Do State 1 | |
| 270 dcfsnz WREG,F | |
| 271 bra sensor_int_state2 ; Do State 2 | |
| 272 dcfsnz WREG,F | |
| 273 bra sensor_int_state1 ; Do State 3 | |
| 274 dcfsnz WREG,F | |
| 275 bra sensor_int_state2 ; Do State 4 | |
| 276 dcfsnz WREG,F | |
| 277 bra sensor_int_state1 ; Do State 5 | |
| 278 dcfsnz WREG,F | |
| 279 bra sensor_int_state2 ; Do State 6 | |
| 280 dcfsnz WREG,F | |
| 281 bra sensor_int_state1 ; Do State 7 | |
| 282 ; bra sensor_int2_plus_average ; Do State 8 | |
| 283 ;sensor_int2_plus_average: | |
| 284 ; First, do state2: | |
| 285 call get_pressure_value ; State2: Get pressure (51us) | |
| 286 call get_temperature_start ; and start temperature integration (73,5us) | |
| 287 call calculate_compensation ; calculate temperature compensated pressure (27us) | |
| 288 ; Build average | |
| 289 bcf STATUS,C ; clear carry bit. | |
| 290 rrcf amb_pressure_avg+1 ; amb_pressure sum / 2 | |
| 291 rrcf amb_pressure_avg+0 | |
| 292 bcf STATUS,C ; clear carry bit, twice. | |
| 293 rrcf amb_pressure_avg+1 ; amb_pressure sum / 4 | |
| 294 rrcf amb_pressure_avg+0 | |
| 295 | |
| 296 ; ; Even more averaging | |
| 297 ; movf amb_pressure_avg+0,W | |
| 298 ; addwf amb_pressure+0 | |
| 299 ; movf amb_pressure_avg+1,W | |
| 300 ; addwfc amb_pressure+1 | |
| 301 ; bcf STATUS,C ; clear carry bit | |
| 302 ; rrcf amb_pressure+1 ; amb_pressure sum / 2 | |
| 303 ; rrcf amb_pressure+0 | |
| 304 | |
| 305 movff amb_pressure_avg+1,amb_pressure+1 ; copy into actual register | |
| 306 movff amb_pressure_avg+0,amb_pressure+0 | |
| 307 | |
| 308 bcf STATUS,C | |
| 309 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
| 310 bsf STATUS,C | |
| 311 rrcf temperature_avg+1 ; Signed temperature /2 | |
| 312 rrcf temperature_avg+0 | |
| 313 bcf STATUS,C | |
| 314 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
| 315 bsf STATUS,C | |
| 316 rrcf temperature_avg+1 ; Signed temperature /4 | |
| 317 rrcf temperature_avg+0 | |
| 318 | |
| 319 movff temperature_avg+1,temperature+1 ; copy into actual register | |
| 320 movff temperature_avg+0,temperature+0 | |
| 321 | |
| 322 banksel common ; flag1 is in Bank1 | |
| 323 bcf temp_changed ; Clear flag for temperature update | |
| 324 bcf pressure_refresh ; Clear flag for pressure update | |
| 325 banksel isr_backup ; Back to Bank0 ISR data | |
| 326 | |
| 327 ; Temp changed? | |
| 328 movf temperature+0,W | |
| 329 cpfseq last_temperature+0 | |
| 330 bra isr_sensor_state2_2 ; Yes | |
| 331 movf temperature+1,W | |
| 332 cpfseq last_temperature+1 | |
| 333 bra isr_sensor_state2_2 ; Yes | |
| 334 | |
| 335 bra isr_sensor_state2_3 ; no change | |
| 336 | |
| 337 isr_sensor_state2_2: | |
| 338 banksel common ; flag1 is in Bank1 | |
| 339 bsf temp_changed ; Yes | |
| 340 banksel isr_backup ; Back to Bank0 ISR data | |
| 341 isr_sensor_state2_3: | |
| 342 movff temperature+0,last_temperature+0 ; Copy for compare | |
| 343 movff temperature+1,last_temperature+1 | |
| 344 | |
| 345 movf amb_pressure+0,W | |
| 346 cpfseq last_pressure+0 | |
| 347 bra isr_sensor_state2_4 ; Yes | |
| 348 movf amb_pressure+1,W | |
| 349 cpfseq last_pressure+1 | |
| 350 bra isr_sensor_state2_4 ; Yes | |
| 351 | |
| 352 bra isr_sensor_state2_5 ; No change | |
| 353 isr_sensor_state2_4: | |
| 354 banksel common ; flag1 is in Bank1 | |
| 355 bsf pressure_refresh ; Yes | |
| 356 banksel isr_backup ; Back to Bank0 ISR data | |
| 357 isr_sensor_state2_5: | |
| 358 movff amb_pressure+0,last_pressure+0 ; Copy for compare | |
| 359 movff amb_pressure+1,last_pressure+1 | |
| 360 | |
| 361 clrf sensor_state_counter ; Then reset State counter | |
| 362 btfss simulatormode_active ; are we in simulator mode? | |
| 363 bra comp_air_pressure ; no | |
| 364 comp_air_pressure0: | |
| 365 movlw LOW d'1000' ; yes, so simulate 1000mbar surface pressure | |
| 366 movwf last_surfpressure+0 | |
| 367 movlw HIGH d'1000' | |
| 368 movwf last_surfpressure+1 | |
| 369 ; Always set pressure_refresh flag in simulator mode | |
| 370 banksel common ; flag1 is in Bank1 | |
| 371 bsf pressure_refresh ; Yes | |
| 372 banksel isr_backup ; Back to Bank0 ISR data | |
| 373 | |
| 374 comp_air_pressure: | |
| 375 movf last_surfpressure+0,W ; compensate airpressure | |
| 376 subwf amb_pressure+0,W | |
| 377 movwf rel_pressure+0 ; rel_pressure stores depth! | |
| 378 | |
| 379 movf last_surfpressure+1,W | |
| 380 subwfb amb_pressure+1,W | |
| 381 movwf rel_pressure+1 | |
| 382 btfss STATUS,N ; result is below zero? | |
| 383 bra sensor_int_state_exit | |
| 384 clrf rel_pressure+0 ; Yes, do not display negative depths | |
| 385 clrf rel_pressure+1 ; e.g. when surface air pressure dropped during the dive | |
| 386 bra sensor_int_state_exit | |
| 387 | |
| 388 sensor_int_state1_plus_restart: | |
| 389 clrf amb_pressure_avg+0 ; pressure average registers | |
| 390 clrf amb_pressure_avg+1 | |
| 391 clrf temperature_avg+0 | |
| 392 clrf temperature_avg+1 | |
| 393 | |
| 394 sensor_int_state1: | |
| 395 call get_temperature_value ; State 1: Get temperature | |
| 396 call get_pressure_start ; and start pressure integration. | |
| 397 bra sensor_int_state_exit | |
| 398 | |
| 399 sensor_int_state2: | |
| 400 call get_pressure_value ; State2: Get pressure (51us) | |
| 401 call get_temperature_start ; and start temperature integration (73,5us) | |
| 402 call calculate_compensation ; calculate temperature compensated pressure (233us) | |
| 403 ; bra sensor_int_state_exit | |
| 404 sensor_int_state_exit: | |
| 405 rcall isr_restore_clock ; Restore clock | |
| 406 return | |
| 407 ;============================================================================= | |
| 408 | |
| 409 isr_dimm_tft: ; Adjust until max_CCPR1L=CCPR1L ! | |
| 410 banksel common | |
| 411 btfsc tft_is_dimming ; Ignore while dimming | |
| 412 return | |
| 413 banksel isr_backup | |
| 414 movf max_CCPR1L,W | |
| 415 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L? | |
| 416 bra isr_dimm_tft2 ; No, dimm up | |
| 417 ; dimm down | |
| 418 decf CCPR1L,F ; -1 | |
| 419 return | |
| 420 isr_dimm_tft2: | |
| 421 movf max_CCPR1L,W | |
|
31
53a09c1b7410
BUGFIX: alternating brightness at very low ambient light
heinrichsweikamp
parents:
30
diff
changeset
|
422 sublw ambient_light_min_eco |
|
53a09c1b7410
BUGFIX: alternating brightness at very low ambient light
heinrichsweikamp
parents:
30
diff
changeset
|
423 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L-ambient_light_min_eco? |
| 0 | 424 bra isr_dimm_tft3 ; No, dimm up slow |
| 425 ; dimm up faster | |
| 426 movlw .5 | |
| 427 addwf CCPR1L,F | |
| 428 isr_dimm_tft3: | |
| 429 incf CCPR1L,F ; +1 | |
| 430 return | |
| 431 | |
| 432 | |
| 433 isr_rtcc: ; each second | |
| 434 bcf PIR3,RTCCIF ; clear flag | |
| 435 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
| 436 bsf RTCCFG,RTCPTR1 | |
| 437 bsf RTCCFG,RTCPTR0 ; year | |
| 438 movff RTCVALL,year ; format is BCD! | |
| 439 movff RTCVALH,day ; dummy read | |
| 440 movff RTCVALL,day ; format is BCD! | |
| 441 movff RTCVALH,month ; format is BCD! | |
| 442 movff RTCVALL,hours ; format is BCD! | |
| 443 movff RTCVALH,secs ; format is BCD! | |
| 444 movff RTCVALL,secs ; format is BCD! | |
| 445 movff RTCVALH,mins ; format is BCD! | |
| 446 banksel isr_backup ; Back to Bank0 ISR data | |
| 447 | |
| 448 ; Convert BCD to DEC and set registers | |
| 449 movff mins, isr1_temp | |
| 450 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 451 movff WREG,mins | |
| 452 movff secs, isr1_temp | |
| 453 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 454 movff WREG,secs | |
| 455 movff hours, isr1_temp | |
| 456 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 457 movff WREG,hours | |
| 458 movff month, isr1_temp | |
| 459 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 460 movff WREG,month | |
| 461 movff day, isr1_temp | |
| 462 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 463 movff WREG,day | |
| 464 movff year, isr1_temp | |
| 465 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 466 movff WREG,year | |
| 467 | |
| 468 ; Place once/second tasks for ISR here (Be sure of the right bank!) | |
| 469 banksel common ; flag1 is in Bank1 | |
| 470 btfss sleepmode ; in Sleepmode? | |
| 471 call get_ambient_level ; No, get ambient light level and set max_CCPR1L | |
| 472 | |
| 473 rcall isr_battery_gauge ; Add amount of battery consumption to battery_gauge:6 | |
| 474 | |
| 475 banksel common ; flag1 is in Bank1 | |
| 476 bsf onesecupdate ; A new second has begun | |
| 477 btfsc divemode ; in divemode? | |
| 478 rcall isr_divemode_1sec ; Yes, do some divemode stuff in bank common | |
| 479 | |
| 480 tstfsz secs ; Secs == 0 ? | |
| 481 return ; No, Done. | |
| 482 | |
| 483 ; banksel isr_backup ; Back to Bank0 ISR data | |
| 484 ; movff secs,isr1_temp ; Copy to Bank0 | |
| 485 ; movlw d'0' | |
| 486 ; cpfseq isr1_temp ; Secs == 0 ? | |
| 487 ; return ; Done. | |
| 488 | |
| 489 ; banksel common ; flag1 is in Bank1 | |
| 490 bsf oneminupdate ; A new minute has begun | |
| 491 | |
| 492 btfss divemode ; In Divemode? | |
| 493 rcall check_nofly_desat_time ; No, so reduce NoFly and Desat and increase interval | |
| 494 | |
| 495 ; Check if a new hour has just begun | |
| 496 ; banksel common ; flag1 is in Bank1 | |
| 497 tstfsz mins ; mins=0? | |
| 498 bra isr_rtcc2 ; No | |
| 499 bsf onehourupdate ; Yes, set flag | |
| 500 | |
| 501 isr_rtcc2: | |
| 502 banksel isr_backup ; Back to Bank0 ISR data | |
| 503 return ; Done. | |
| 504 | |
| 505 isr_battery_gauge: | |
| 506 banksel isr_backup ; Bank0 ISR data | |
| 507 movlw current_sleepmode ; 100µA/3600 -> nAs (Sleepmode current) | |
| 508 movwf isr1_temp ; Store value (low byte) | |
| 509 clrf isr2_temp ; High byte | |
| 510 | |
| 511 banksel common ; flag1 is in Bank1 | |
| 512 btfss sleepmode ; in Sleepmode? | |
| 513 rcall isr_battery_gauge2 ; No, compute current consumtion value into isr1_temp and isr2_temp | |
| 514 | |
| 515 banksel isr_backup ; Bank0 ISR data | |
| 516 movf isr1_temp,W ; 48Bit add of isr1_temp and isr2_temp into battery_gauge:6 | |
| 517 addwf battery_gauge+0,F | |
| 518 movf isr2_temp,W | |
| 519 addwfc battery_gauge+1,F | |
| 520 movlw .0 | |
| 521 addwfc battery_gauge+2,F | |
| 522 movlw .0 | |
| 523 addwfc battery_gauge+3,F | |
| 524 movlw .0 | |
| 525 addwfc battery_gauge+4,F | |
| 526 movlw .0 | |
| 527 addwfc battery_gauge+5,F | |
| 528 return | |
| 529 | |
| 530 isr_battery_gauge2: | |
| 531 ; set consumtion rate in nAs for an one second interval | |
| 532 ; Example: | |
| 533 ; movlw LOW .55556 ; 0,2A/3600*1e9s = nAs | |
| 534 ; movwf isr1_temp ; Low byte | |
| 535 ; movlw HIGH .55556 ; 0,2A/3600*1e9s = nAs | |
| 536 ; movwf isr2_temp ; High byte | |
| 537 | |
| 538 ; Current consumption for LED backlight is 47*CCPR1L+272 | |
| 539 movf CCPR1L,W | |
| 540 mullw current_backlight_multi | |
| 541 movlw LOW current_backlight_offset | |
| 542 addwf PRODL,F | |
| 543 movlw HIGH current_backlight_offset | |
| 544 addwfc PRODH,F | |
| 545 movff PRODL,isr1_temp | |
| 546 movff PRODH,isr2_temp ; isr1_temp and isr2_temp hold value for backlight | |
| 547 | |
| 548 ; Add current for CPU and GPU | |
| 549 ; speed_setting=1: ECO (3,1mA -> 861nAs), =2: NORMAL (5,50mA -> 1528nAs) or =3: FASTEST (8,04mA -> 2233nAs) | |
| 550 movlw .1 | |
| 551 cpfseq speed_setting | |
| 552 bra isr_battery_gauge3 | |
| 553 banksel isr_backup ; Bank0 ISR data | |
| 554 movlw LOW current_speed_eco | |
| 555 addwf isr1_temp,F | |
| 556 movlw HIGH current_speed_eco | |
| 557 addwfc isr2_temp,F | |
| 558 bra isr_battery_gauge5 | |
| 559 isr_battery_gauge3: | |
| 560 movlw .2 | |
| 561 cpfseq speed_setting | |
| 562 bra isr_battery_gauge4 | |
| 563 banksel isr_backup ; Bank0 ISR data | |
| 564 movlw LOW current_speed_normal | |
| 565 addwf isr1_temp,F | |
| 566 movlw HIGH current_speed_normal | |
| 567 addwfc isr2_temp,F | |
| 568 bra isr_battery_gauge5 | |
| 569 isr_battery_gauge4: | |
| 570 ; movlw .3 | |
| 571 ; cpfseq speed_setting | |
| 572 ; bra isr_battery_gauge5 | |
| 573 banksel isr_backup ; Bank0 ISR data | |
| 574 movlw LOW current_speed_fastest | |
| 575 addwf isr1_temp,F | |
| 576 movlw HIGH current_speed_fastest | |
| 577 addwfc isr2_temp,F | |
| 578 isr_battery_gauge5: | |
| 579 ; Add current if IR reciever is on | |
| 580 btfss ir_power ; IR enabled? | |
| 581 bra isr_battery_gauge6 ; no | |
| 582 movlw LOW current_ir_reciever | |
| 583 addwf isr1_temp,F | |
| 584 movlw HIGH current_ir_reciever | |
| 585 addwfc isr2_temp,F | |
| 586 isr_battery_gauge6: | |
| 587 ; Add current for compass/accelerometer | |
| 588 btfss compass_enabled ; compass active? | |
| 589 bra isr_battery_gauge7 ; no | |
| 590 movlw LOW current_compass | |
| 591 addwf isr1_temp,F | |
| 592 movlw HIGH current_compass | |
| 593 addwfc isr2_temp,F | |
| 594 isr_battery_gauge7: | |
| 595 return | |
| 596 | |
| 597 isr_divemode_1sec: | |
| 598 incf samplesecs,F ; "samplingrate" diving seconds done | |
| 599 decf samplesecs_value,W ; holds "samplingrate" value (minus 1 into WREG) | |
| 600 cpfsgt samplesecs ; Done? | |
| 601 bra isr_divemode_1sec2 ; no | |
| 602 | |
| 603 clrf samplesecs ; clear counter... | |
| 604 bsf store_sample ; ...and set bit for profile storage | |
| 605 isr_divemode_1sec2: | |
| 606 ; Increase re-setable average depth divetime counter | |
| 607 incf average_divesecs+0,F ; increase stopwatch registers | |
| 608 btfsc STATUS,Z | |
| 609 incf average_divesecs+1,F ; increase stopwatch registers | |
| 610 ; Increase total divetime (Regardless of start_dive_threshold) | |
| 611 incf total_divetime_seconds+0,F | |
| 612 movlw .0 | |
| 613 addwfc total_divetime_seconds+1,F ; Total dive time (Regardless of start_dive_threshold) | |
| 614 | |
| 615 btfss divemode2 ; displayed divetime is running? | |
| 616 return ; No (e.g. too shallow) | |
| 617 | |
| 618 ; increase divetime registers (Displayed dive time) | |
| 619 incf divesecs,F | |
| 620 movlw d'59' | |
| 621 cpfsgt divesecs | |
| 622 bra isr_divemode_1sec2a | |
| 623 | |
| 624 clrf divesecs | |
| 625 bsf realdive ; this bit is always set (again) if the dive is longer then one minute | |
| 626 incf divemins+0,F | |
| 627 movlw .0 | |
| 628 addwfc divemins+1,F ; increase divemins | |
| 629 | |
| 630 isr_divemode_1sec2a: | |
| 631 btfss FLAG_apnoe_mode ; Are we in Apnoe mode? | |
| 632 return ; No | |
| 633 | |
| 634 incf apnoe_secs,F ; increase descent registers | |
| 635 movlw d'59' | |
| 636 cpfsgt apnoe_secs ; full minute? | |
| 637 return ; No | |
| 638 clrf apnoe_secs | |
| 639 incf apnoe_mins,F ; increase descent mins | |
| 640 return | |
| 641 | |
| 642 ;============================================================================= | |
| 643 ; BCD to Binary convertion. | |
| 644 ; Input: isr1_temp = Value in BCD | |
| 645 ; Output WREG = value in binary. | |
| 646 isr_rtcc_convert: | |
| 647 swapf isr1_temp, W | |
| 648 andlw 0x0F ; W= tens | |
| 649 rlncf WREG, W ; W= 2*tens | |
| 650 subwf isr1_temp, F ; 16*tens + ones - 2*tens | |
| 651 subwf isr1_temp, F ; 14*tens + ones - 2*tens | |
| 652 subwf isr1_temp, W ; 12*tens + ones - 2*tens | |
| 653 return | |
| 654 | |
| 655 ;============================================================================= | |
| 656 | |
| 657 isr_switch_right: ; | |
| 658 bcf INTCON,INT0IE ; Disable INT0 | |
| 659 ; bcf power_sw2 ; Power-down switch circuity | |
| 660 banksel common ; flag1 is in Bank1 | |
| 661 bsf switch_right ; Set flag, button press is OK | |
| 662 bra isr_switch_common ; Continue... | |
| 663 | |
| 664 isr_switch_left: ; | |
| 665 bcf INTCON3,INT1IE ; Disable INT1 | |
| 666 ; bcf power_sw1 ; Power-down switch circuity | |
| 667 banksel common ; flag1 is in Bank1 | |
| 668 bsf switch_left ; Set flag, button press is OK | |
| 669 | |
| 670 isr_switch_common: | |
| 671 ; load timer1 for first press | |
| 672 clrf TMR1L | |
| 673 movlw TMR1H_VALUE_FIRST ; in steps of 7,8125ms | |
| 674 movwf TMR1H | |
| 675 bsf T1CON,TMR1ON ; Start Timer 1 | |
| 676 ; nop | |
| 677 ; nop | |
| 678 ; nop | |
| 679 ; nop | |
| 680 ; nop | |
| 681 ; nop | |
| 682 ; nop | |
| 683 ; nop | |
| 684 ; nop | |
| 685 ; nop | |
| 686 ; nop | |
| 687 ; nop | |
| 688 ; nop | |
| 689 ; nop | |
| 690 ; nop | |
| 691 ; nop | |
| 692 ; nop | |
| 693 ; nop | |
| 694 ; nop | |
| 695 ; nop | |
| 696 ; nop | |
| 697 ; nop | |
| 698 ; nop | |
| 699 ; nop | |
| 700 | |
| 701 banksel isr_backup ; Select Bank0 for ISR data. | |
| 702 ; bsf power_sw1 | |
| 703 bcf INTCON3,INT1IF ; Clear flag | |
| 704 ; bsf power_sw2 ; Power-up switch circuity | |
| 705 bcf INTCON,INT0IF ; Clear flag | |
| 706 return | |
| 707 | |
| 708 timer1int: | |
| 709 bcf PIR1,TMR1IF ; Clear flag | |
| 710 banksel common ; flag1 is in Bank1 | |
| 711 btfss switch_left1 ; Left button hold-down? | |
| 712 bra timer1int_left ; Yes | |
| 713 btfss switch_right2 ; Right button hold-down? | |
| 714 bra timer1int_right ; Yes | |
| 715 | |
| 716 ; No button hold-down, stop Timer 1 | |
| 717 bcf T1CON,TMR1ON ; Stop Timer 1 | |
| 718 bsf INTCON,INT0IE ; Enable INT0 | |
| 719 bsf INTCON3,INT1IE ; Enable INT1 | |
| 720 bcf INTCON,INT0IF ; Clear flag | |
| 721 bcf INTCON3,INT1IF ; Clear flag | |
| 722 ; bcf switch_left | |
| 723 ; bcf switch_right | |
| 724 return | |
| 725 | |
| 726 timer1int_left: | |
| 727 ; bcf power_sw1 ; Power-down switch circuity | |
| 728 bsf switch_left ; (Re-)Set flag | |
| 729 bra timer1int_common ; Continue | |
| 730 timer1int_right: | |
| 731 ; bcf power_sw2 ; Power-down switch circuity | |
| 732 bsf switch_right ; (Re-)Set flag | |
| 733 timer1int_common: | |
| 734 ; load timer1 for next press | |
| 735 clrf TMR1L | |
| 736 movlw TMR1H_VALUE_CONT ; Surface mode | |
| 737 btfsc divemode | |
| 738 movlw TMR1H_VALUE_CONT_DIVE ; Dive mode | |
| 739 movwf TMR1H | |
| 740 ; nop | |
| 741 ; nop | |
| 742 ; nop | |
| 743 ; nop | |
| 744 ; nop | |
| 745 ; nop | |
| 746 ; nop | |
| 747 ; nop | |
| 748 ; nop | |
| 749 ; nop | |
| 750 ; nop | |
| 751 ; nop | |
| 752 ; nop | |
| 753 ; nop | |
| 754 ; nop | |
| 755 ; nop | |
| 756 ; | |
| 757 ; nop | |
| 758 ; nop | |
| 759 ; nop | |
| 760 ; nop | |
| 761 ; nop | |
| 762 ; nop | |
| 763 ; nop | |
| 764 ; nop | |
| 765 ; bsf power_sw1 | |
| 766 bcf INTCON3,INT1IF ; Clear flag | |
| 767 ; bsf power_sw2 ; Power-up switch circuity | |
| 768 bcf INTCON,INT0IF ; Clear flag | |
| 769 return ; Return from timer1int with timer1 kept running | |
| 770 | |
| 771 ;============================================================================= | |
| 772 | |
| 773 check_nofly_desat_time: | |
| 774 movf nofly_time+0,W ; Is nofly null ? | |
| 775 iorwf nofly_time+1,W | |
| 776 bz check_nofly_desat_time2 ; yes... | |
| 777 | |
| 778 movlw d'1' | |
| 779 subwf nofly_time+0,F | |
| 780 movlw d'0' | |
| 781 subwfb nofly_time+1,F ; reduce by one | |
| 782 | |
| 783 check_nofly_desat_time2: | |
| 784 movf desaturation_time+0,W ; Is Desat null ? | |
| 785 iorwf desaturation_time+1,W | |
| 786 bz check_nofly_desat_time3 ; yes... | |
| 787 | |
| 788 movlw d'1' | |
| 789 subwf desaturation_time+0,F | |
| 790 movlw d'0' | |
| 791 subwfb desaturation_time+1,F ; reduce by one... | |
| 792 | |
| 793 ; Increase surface interval timer | |
| 794 movlw d'1' | |
| 795 addwf surface_interval+0,F | |
| 796 movlw d'0' | |
| 797 addwfc surface_interval+1,F | |
| 798 return ; Done | |
| 799 | |
| 800 check_nofly_desat_time3: | |
| 801 clrf surface_interval+0 | |
| 802 clrf surface_interval+1 ; Clear surface interval timer | |
| 803 return ; Done. | |
| 804 | |
| 805 ;============================================================================= | |
| 806 | |
| 807 isr_restore_clock: | |
| 808 banksel isr_backup | |
| 809 movff speed_setting,isr1_temp ; Copy to Bank0 | |
| 810 movlw d'1' | |
| 811 cpfseq isr1_temp | |
| 812 bra isr_restore_speed2 | |
| 813 ; Reset to eco | |
| 814 movlw b'00000000' | |
| 815 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 816 movlw b'00110010' | |
| 817 movwf OSCCON ; 1MHz INTOSC | |
| 818 movlw T2CON_ECO | |
| 819 movwf T2CON | |
| 820 bra isr_restore_exit | |
| 821 isr_restore_speed2: | |
| 822 movlw d'2' | |
| 823 cpfseq isr1_temp | |
| 824 bra isr_restore_speed3 | |
| 825 ; Reset to normal | |
| 826 movlw b'01110010' | |
| 827 movwf OSCCON ; 16MHz INTOSC | |
| 828 movlw b'00000000' | |
| 829 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 830 movlw T2CON_NORMAL | |
| 831 movwf T2CON | |
| 832 bra isr_restore_exit | |
| 833 | |
| 834 isr_restore_speed3: | |
| 835 ; Reset to fastest | |
| 836 movlw b'01110010' ; 16MHz INTOSC | |
| 837 movwf OSCCON | |
| 838 movlw b'01000000' | |
| 839 movwf OSCTUNE ; 4x PLL Enable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 840 movlw T2CON_FASTEST | |
| 841 movwf T2CON | |
| 842 ; bra isr_restore_exit | |
| 843 isr_restore_exit: | |
| 844 btfss OSCCON,HFIOFS | |
| 845 bra isr_restore_exit ; loop until PLL is stable | |
| 846 return | |
| 847 | |
| 848 END |