Mercurial > public > hwos_code
annotate src/isr.asm @ 31:53a09c1b7410
BUGFIX: alternating brightness at very low ambient light
| author | heinrichsweikamp |
|---|---|
| date | Sun, 21 Jul 2013 18:04:29 +0200 |
| parents | bc6d47e801c6 |
| children | ec4d8503ec45 |
| 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 | |
| 28 | 39 ; INT3 for RX control |
| 40 btfsc INTCON3,INT3IF ; Timer3 INT | |
| 41 rcall isr_int3 | |
| 42 ; Timer0 for RX timing | |
| 43 btfsc INTCON,TMR0IF ; Timer0 INT | |
| 44 rcall timer0int | |
| 45 | |
| 0 | 46 ; Pressure sensor and others |
| 47 btfsc PIR5,TMR7IF ; Timer 7 | |
| 48 rcall isr_tmr7 ; Every 62,5ms | |
| 49 | |
| 50 ; Buttons | |
| 51 btfsc PIR1,TMR1IF ; Timer1 INT (Button hold-down Timer) | |
| 52 rcall timer1int | |
| 53 btfsc INTCON,INT0IF ; Buttons | |
| 54 rcall isr_switch_right | |
| 55 btfsc INTCON3,INT1IF ; Buttons | |
| 56 rcall isr_switch_left | |
| 57 | |
| 58 ; IR-Link | |
| 59 btfsc PIR2,TMR3IF ; Timer 3 | |
| 60 rcall isr_timer3 ; IR-Link Timeout | |
| 61 btfsc PIR3,RC2IF ; UART2 | |
| 62 rcall isr_uart2 ; IR-Link | |
| 63 | |
| 64 ; RTCC | |
| 65 btfsc PIR3,RTCCIF ; Real-time-clock interrupt | |
| 66 rcall isr_rtcc ; May return in bank common! | |
| 67 | |
| 68 movff isr_prod+1,PRODH | |
| 69 movff isr_prod+0,PRODL | |
| 70 retfie FAST ; Restores BSR, STATUS and WREG | |
| 71 | |
| 72 ;============================================================================= | |
| 73 | |
| 28 | 74 timer0int: |
| 75 bcf T0CON,TMR0ON ; Stop Timer 0 | |
| 76 | |
| 77 ; bcf LEDr;mH | |
| 78 | |
| 79 movlw TMR0H_VALUE | |
| 80 movwf TMR0H | |
| 81 bcf INTCON,TMR0IF ; Clear flag | |
| 82 clrf TMR0L | |
| 83 bsf INTCON2,INTEDG3 ; INT3 on rising edge | |
| 84 return | |
| 0 | 85 |
| 28 | 86 isr_int3: |
| 87 bcf INTCON3,INT3IF ; Clear flag | |
| 88 bsf T0CON,TMR0ON ; Start Timer 0 | |
| 89 btg INTCON2,INTEDG3 ; Toggle INT3 edge | |
| 90 | |
| 91 ; btg LEDr;mH | |
| 92 | |
| 93 ; Reset RX Timeout | |
| 94 clrf TMR0L | |
| 95 movlw TMR0H_VALUE | |
| 96 movwf TMR0H | |
| 97 bcf INTCON,TMR0IF ; Clear flag | |
| 98 return | |
| 0 | 99 |
| 100 | |
| 101 isr_uart2: ; IR-Link | |
| 102 banksel RCREG2 | |
| 103 movf RCREG2,W | |
| 104 bcf RCSTA2,CREN ; Clear receiver status | |
| 105 bsf RCSTA2,CREN | |
| 106 banksel isr_backup | |
| 107 bcf PIR3,RC2IF ; Clear flag | |
| 108 incf ir_counter,F ; Increase counter | |
| 109 movff ir_counter,isr1_temp ; Copy | |
| 110 dcfsnz isr1_temp,F | |
| 111 movwf ir_buffer+.0 | |
| 112 dcfsnz isr1_temp,F | |
| 113 movwf ir_buffer+.1 | |
| 114 dcfsnz isr1_temp,F | |
| 115 movwf ir_buffer+.2 | |
| 116 dcfsnz isr1_temp,F | |
| 117 movwf ir_buffer+.3 | |
| 118 dcfsnz isr1_temp,F | |
| 119 movwf ir_buffer+.4 | |
| 120 dcfsnz isr1_temp,F | |
| 121 movwf ir_buffer+.5 | |
| 122 dcfsnz isr1_temp,F | |
| 123 movwf ir_buffer+.6 | |
| 124 dcfsnz isr1_temp,F | |
| 125 movwf ir_buffer+.7 | |
| 126 dcfsnz isr1_temp,F | |
| 127 movwf ir_buffer+.8 | |
| 128 dcfsnz isr1_temp,F | |
| 129 movwf ir_buffer+.9 | |
| 130 dcfsnz isr1_temp,F | |
| 131 movwf ir_buffer+.10 | |
| 132 dcfsnz isr1_temp,F | |
| 133 movwf ir_buffer+.11 | |
| 134 dcfsnz isr1_temp,F | |
| 135 movwf ir_buffer+.12 | |
| 136 dcfsnz isr1_temp,F | |
| 137 movwf ir_buffer+.13 | |
| 138 dcfsnz isr1_temp,F | |
| 139 movwf ir_buffer+.14 | |
| 140 dcfsnz isr1_temp,F | |
| 141 movwf ir_buffer+.15 | |
| 142 clrf TMR3L ; Preload timer | |
| 143 movlw .253 | |
| 144 movwf TMR3H | |
| 145 bsf T3CON,TMR3ON ; (Re)Start Timeout counter | |
| 146 return | |
| 147 | |
| 148 isr_timer3: ; IR-Link Timeout | |
| 149 bcf T3CON,TMR3ON ; Stop Timer3 | |
| 150 banksel isr_backup ; Select Bank0 for ISR data. | |
| 151 movlw .15 | |
| 152 cpfseq ir_counter ; Got exact 15bytes? | |
| 153 bra isr_timer3_1 ; No, test for 16bytes | |
| 154 bra isr_timer3_2 ; Got 15 bytes, compute local checksum | |
| 155 isr_timer3_1: | |
| 156 movlw .16 | |
| 157 cpfseq ir_counter ; Got exact 16bytes? | |
| 158 bra isr_timer3_exit ; No, exit | |
| 159 tstfsz ir_buffer+.15 ; Last byte=0x00 | |
| 160 bra isr_timer3_exit ; No, exit | |
| 161 | |
| 162 isr_timer3_2: | |
| 163 movff ir_buffer+.0,PRODL | |
| 164 clrf PRODH | |
| 165 movf ir_buffer+.1,W | |
| 166 rcall isr_timer3_checksum | |
| 167 movf ir_buffer+.2,W | |
| 168 rcall isr_timer3_checksum | |
| 169 movf ir_buffer+.3,W | |
| 170 rcall isr_timer3_checksum | |
| 171 movf ir_buffer+.4,W | |
| 172 rcall isr_timer3_checksum | |
| 173 movf ir_buffer+.5,W | |
| 174 rcall isr_timer3_checksum | |
| 175 movf ir_buffer+.6,W | |
| 176 rcall isr_timer3_checksum | |
| 177 movf ir_buffer+.7,W | |
| 178 rcall isr_timer3_checksum | |
| 179 movf ir_buffer+.8,W | |
| 180 rcall isr_timer3_checksum | |
| 181 movf ir_buffer+.9,W | |
| 182 rcall isr_timer3_checksum | |
| 183 movf ir_buffer+.10,W | |
| 184 rcall isr_timer3_checksum | |
| 185 movf ir_buffer+.11,W | |
| 186 rcall isr_timer3_checksum | |
| 187 movf ir_buffer+.12,W | |
| 188 rcall isr_timer3_checksum | |
| 189 | |
| 190 ; Compare checksum | |
| 191 movf ir_buffer+.13,W | |
| 192 cpfseq PRODL ; Checksum ok? | |
| 193 bra isr_timer3_exit ; No, exit | |
| 194 movf ir_buffer+.14,W | |
| 195 cpfseq PRODH ; Checksum ok? | |
| 196 bra isr_timer3_exit ; No, exit | |
| 197 | |
| 198 ; Checksum OK, copy results | |
| 199 movff ir_buffer+.1,hud_status_byte | |
| 200 movff ir_buffer+.2,o2_mv_sensor1+0 | |
| 201 movff ir_buffer+.3,o2_mv_sensor1+1 | |
| 202 movff ir_buffer+.4,o2_mv_sensor2+0 | |
| 203 movff ir_buffer+.5,o2_mv_sensor2+1 | |
| 204 movff ir_buffer+.6,o2_mv_sensor3+0 | |
| 205 movff ir_buffer+.7,o2_mv_sensor3+1 | |
| 206 movff ir_buffer+.8,o2_ppo2_sensor1 | |
| 207 movff ir_buffer+.9,o2_ppo2_sensor2 | |
| 208 movff ir_buffer+.10,o2_ppo2_sensor3 | |
| 209 movff ir_buffer+.11,hud_battery_mv+0 | |
| 210 movff ir_buffer+.12,hud_battery_mv+1 | |
| 211 | |
| 212 movlw ir_timeout_value ; multiples of 62,5ms | |
| 213 movwf ir_timeout ; Reload timeout | |
| 214 | |
| 215 isr_timer3_exit: | |
| 216 clrf ir_counter ; Clear pointer | |
| 217 bcf PIR2,TMR3IF ; Clear flag | |
| 218 return | |
| 219 | |
| 220 isr_timer3_checksum: | |
| 221 addwf PRODL,F | |
| 222 movlw .0 | |
| 223 addwfc PRODH,F | |
| 224 return | |
| 225 | |
| 226 ;============================================================================= | |
| 227 | |
| 228 isr_tmr7: ; each 62,5ms | |
| 229 bcf PIR5,TMR7IF ; clear flag | |
| 230 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
| 231 movlw .248 | |
| 232 movwf TMR7H ; -> Rollover after 2048 cycles -> 62,5ms | |
| 233 | |
| 234 banksel isr_backup | |
| 235 movf max_CCPR1L,W ; Dimm value | |
| 236 cpfseq CCPR1L ; = current PWM value? | |
| 237 rcall isr_dimm_tft ; No, adjust until max_CCPR1L=CCPR1L ! | |
| 238 | |
| 239 banksel isr_backup | |
| 240 decfsz ir_timeout,F ; IR Data still valid? | |
| 241 bra isr_tmr7_2 ; Yes, continue | |
| 242 ; timeout, clear IR-Data | |
| 243 | |
| 244 movlw ir_timeout_value ; multiples of 62,5ms | |
| 245 movwf ir_timeout ; Reload timeout | |
| 246 | |
| 247 banksel common | |
| 248 clrf o2_mv_sensor1+0 | |
| 249 clrf o2_mv_sensor1+1 | |
| 250 clrf o2_mv_sensor2+0 | |
| 251 clrf o2_mv_sensor2+1 | |
| 252 clrf o2_mv_sensor3+0 | |
| 253 clrf o2_mv_sensor3+1 | |
| 254 clrf hud_battery_mv+0 | |
| 255 clrf hud_battery_mv+1 | |
| 256 clrf hud_status_byte | |
| 257 clrf o2_ppo2_sensor1 | |
| 258 clrf o2_ppo2_sensor2 | |
| 259 clrf o2_ppo2_sensor3 | |
| 260 | |
| 261 isr_tmr7_2: | |
| 262 banksel common | |
| 263 btfss no_sensor_int ; No sensor interrupt (because it's addressed during sleep) | |
| 264 bra isr_sensor_state2 ; No, continue | |
| 265 banksel isr_backup ; Back to Bank0 ISR data | |
| 266 return | |
| 267 | |
| 268 isr_set_speed_to_normal: | |
| 269 ; Set Speed to normal | |
| 270 movlw b'01110010' | |
| 271 movwf OSCCON ; 16MHz INTOSC | |
| 272 movlw b'00000000' | |
| 273 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 274 movlw b'00001101' ; 1:2 Postscaler, 1:4 Prescaler, Timer 2 start -> 1960Hz (no-flicker) | |
| 275 movwf T2CON | |
| 276 btfss OSCCON,HFIOFS | |
| 277 bra $-2 ; Wait until clock is stable | |
| 278 return | |
| 279 | |
| 280 isr_sensor_state2: | |
| 281 banksel common | |
| 282 movff sensor_state_counter,WREG | |
| 283 btfss WREG,0 ; every 1/4 second | |
| 284 bsf quarter_second_update ; Set flag | |
| 285 movlw d'2' | |
| 286 cpfseq speed_setting ; Set to normal in case it's not already in normal speed mode | |
| 287 rcall isr_set_speed_to_normal | |
| 288 banksel isr_backup ; Back to Bank0 ISR data | |
| 289 | |
| 290 incf sensor_state_counter,F ; counts to eight for state maschine | |
| 291 | |
| 292 ; State 1: Clear flags and average registers, get temperature (51us) and start pressure integration (73,5us) | |
| 293 ; State 2: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 294 ; State 3: Get temperature (51us) and start pressure integration (73,5us) | |
| 295 ; State 4: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 296 ; State 5: Get temperature (51us) and start pressure integration (73,5us) | |
| 297 ; State 6: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 298 ; State 7: Get temperature (51us) and start pressure integration (73,5us) | |
| 299 ; 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 | |
| 300 | |
| 301 movff sensor_state_counter,WREG ; WREG used as temp here... | |
| 302 dcfsnz WREG,F | |
| 303 bra sensor_int_state1_plus_restart ; Do State 1 | |
| 304 dcfsnz WREG,F | |
| 305 bra sensor_int_state2 ; Do State 2 | |
| 306 dcfsnz WREG,F | |
| 307 bra sensor_int_state1 ; Do State 3 | |
| 308 dcfsnz WREG,F | |
| 309 bra sensor_int_state2 ; Do State 4 | |
| 310 dcfsnz WREG,F | |
| 311 bra sensor_int_state1 ; Do State 5 | |
| 312 dcfsnz WREG,F | |
| 313 bra sensor_int_state2 ; Do State 6 | |
| 314 dcfsnz WREG,F | |
| 315 bra sensor_int_state1 ; Do State 7 | |
| 316 ; bra sensor_int2_plus_average ; Do State 8 | |
| 317 ;sensor_int2_plus_average: | |
| 318 ; First, do state2: | |
| 319 call get_pressure_value ; State2: Get pressure (51us) | |
| 320 call get_temperature_start ; and start temperature integration (73,5us) | |
| 321 call calculate_compensation ; calculate temperature compensated pressure (27us) | |
| 322 ; Build average | |
| 323 bcf STATUS,C ; clear carry bit. | |
| 324 rrcf amb_pressure_avg+1 ; amb_pressure sum / 2 | |
| 325 rrcf amb_pressure_avg+0 | |
| 326 bcf STATUS,C ; clear carry bit, twice. | |
| 327 rrcf amb_pressure_avg+1 ; amb_pressure sum / 4 | |
| 328 rrcf amb_pressure_avg+0 | |
| 329 | |
| 330 ; ; Even more averaging | |
| 331 ; movf amb_pressure_avg+0,W | |
| 332 ; addwf amb_pressure+0 | |
| 333 ; movf amb_pressure_avg+1,W | |
| 334 ; addwfc amb_pressure+1 | |
| 335 ; bcf STATUS,C ; clear carry bit | |
| 336 ; rrcf amb_pressure+1 ; amb_pressure sum / 2 | |
| 337 ; rrcf amb_pressure+0 | |
| 338 | |
| 339 movff amb_pressure_avg+1,amb_pressure+1 ; copy into actual register | |
| 340 movff amb_pressure_avg+0,amb_pressure+0 | |
| 341 | |
| 342 bcf STATUS,C | |
| 343 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
| 344 bsf STATUS,C | |
| 345 rrcf temperature_avg+1 ; Signed temperature /2 | |
| 346 rrcf temperature_avg+0 | |
| 347 bcf STATUS,C | |
| 348 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
| 349 bsf STATUS,C | |
| 350 rrcf temperature_avg+1 ; Signed temperature /4 | |
| 351 rrcf temperature_avg+0 | |
| 352 | |
| 353 movff temperature_avg+1,temperature+1 ; copy into actual register | |
| 354 movff temperature_avg+0,temperature+0 | |
| 355 | |
| 356 banksel common ; flag1 is in Bank1 | |
| 357 bcf temp_changed ; Clear flag for temperature update | |
| 358 bcf pressure_refresh ; Clear flag for pressure update | |
| 359 banksel isr_backup ; Back to Bank0 ISR data | |
| 360 | |
| 361 ; Temp changed? | |
| 362 movf temperature+0,W | |
| 363 cpfseq last_temperature+0 | |
| 364 bra isr_sensor_state2_2 ; Yes | |
| 365 movf temperature+1,W | |
| 366 cpfseq last_temperature+1 | |
| 367 bra isr_sensor_state2_2 ; Yes | |
| 368 | |
| 369 bra isr_sensor_state2_3 ; no change | |
| 370 | |
| 371 isr_sensor_state2_2: | |
| 372 banksel common ; flag1 is in Bank1 | |
| 373 bsf temp_changed ; Yes | |
| 374 banksel isr_backup ; Back to Bank0 ISR data | |
| 375 isr_sensor_state2_3: | |
| 376 movff temperature+0,last_temperature+0 ; Copy for compare | |
| 377 movff temperature+1,last_temperature+1 | |
| 378 | |
| 379 movf amb_pressure+0,W | |
| 380 cpfseq last_pressure+0 | |
| 381 bra isr_sensor_state2_4 ; Yes | |
| 382 movf amb_pressure+1,W | |
| 383 cpfseq last_pressure+1 | |
| 384 bra isr_sensor_state2_4 ; Yes | |
| 385 | |
| 386 bra isr_sensor_state2_5 ; No change | |
| 387 isr_sensor_state2_4: | |
| 388 banksel common ; flag1 is in Bank1 | |
| 389 bsf pressure_refresh ; Yes | |
| 390 banksel isr_backup ; Back to Bank0 ISR data | |
| 391 isr_sensor_state2_5: | |
| 392 movff amb_pressure+0,last_pressure+0 ; Copy for compare | |
| 393 movff amb_pressure+1,last_pressure+1 | |
| 394 | |
| 395 clrf sensor_state_counter ; Then reset State counter | |
| 396 btfss simulatormode_active ; are we in simulator mode? | |
| 397 bra comp_air_pressure ; no | |
| 398 comp_air_pressure0: | |
| 399 movlw LOW d'1000' ; yes, so simulate 1000mbar surface pressure | |
| 400 movwf last_surfpressure+0 | |
| 401 movlw HIGH d'1000' | |
| 402 movwf last_surfpressure+1 | |
| 403 ; Always set pressure_refresh flag in simulator mode | |
| 404 banksel common ; flag1 is in Bank1 | |
| 405 bsf pressure_refresh ; Yes | |
| 406 banksel isr_backup ; Back to Bank0 ISR data | |
| 407 | |
| 408 comp_air_pressure: | |
| 409 movf last_surfpressure+0,W ; compensate airpressure | |
| 410 subwf amb_pressure+0,W | |
| 411 movwf rel_pressure+0 ; rel_pressure stores depth! | |
| 412 | |
| 413 movf last_surfpressure+1,W | |
| 414 subwfb amb_pressure+1,W | |
| 415 movwf rel_pressure+1 | |
| 416 btfss STATUS,N ; result is below zero? | |
| 417 bra sensor_int_state_exit | |
| 418 clrf rel_pressure+0 ; Yes, do not display negative depths | |
| 419 clrf rel_pressure+1 ; e.g. when surface air pressure dropped during the dive | |
| 420 bra sensor_int_state_exit | |
| 421 | |
| 422 sensor_int_state1_plus_restart: | |
| 423 clrf amb_pressure_avg+0 ; pressure average registers | |
| 424 clrf amb_pressure_avg+1 | |
| 425 clrf temperature_avg+0 | |
| 426 clrf temperature_avg+1 | |
| 427 | |
| 428 sensor_int_state1: | |
| 429 call get_temperature_value ; State 1: Get temperature | |
| 430 call get_pressure_start ; and start pressure integration. | |
| 431 bra sensor_int_state_exit | |
| 432 | |
| 433 sensor_int_state2: | |
| 434 call get_pressure_value ; State2: Get pressure (51us) | |
| 435 call get_temperature_start ; and start temperature integration (73,5us) | |
| 436 call calculate_compensation ; calculate temperature compensated pressure (233us) | |
| 437 ; bra sensor_int_state_exit | |
| 438 sensor_int_state_exit: | |
| 439 rcall isr_restore_clock ; Restore clock | |
| 440 return | |
| 441 ;============================================================================= | |
| 442 | |
| 443 isr_dimm_tft: ; Adjust until max_CCPR1L=CCPR1L ! | |
| 444 banksel common | |
| 445 btfsc tft_is_dimming ; Ignore while dimming | |
| 446 return | |
| 447 banksel isr_backup | |
| 448 movf max_CCPR1L,W | |
| 449 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L? | |
| 450 bra isr_dimm_tft2 ; No, dimm up | |
| 451 ; dimm down | |
| 452 decf CCPR1L,F ; -1 | |
| 453 return | |
| 454 isr_dimm_tft2: | |
| 455 movf max_CCPR1L,W | |
|
31
53a09c1b7410
BUGFIX: alternating brightness at very low ambient light
heinrichsweikamp
parents:
30
diff
changeset
|
456 sublw ambient_light_min_eco |
|
53a09c1b7410
BUGFIX: alternating brightness at very low ambient light
heinrichsweikamp
parents:
30
diff
changeset
|
457 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L-ambient_light_min_eco? |
| 0 | 458 bra isr_dimm_tft3 ; No, dimm up slow |
| 459 ; dimm up faster | |
| 460 movlw .5 | |
| 461 addwf CCPR1L,F | |
| 462 isr_dimm_tft3: | |
| 463 incf CCPR1L,F ; +1 | |
| 464 return | |
| 465 | |
| 466 | |
| 467 isr_rtcc: ; each second | |
| 468 bcf PIR3,RTCCIF ; clear flag | |
| 469 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
| 470 bsf RTCCFG,RTCPTR1 | |
| 471 bsf RTCCFG,RTCPTR0 ; year | |
| 472 movff RTCVALL,year ; format is BCD! | |
| 473 movff RTCVALH,day ; dummy read | |
| 474 movff RTCVALL,day ; format is BCD! | |
| 475 movff RTCVALH,month ; format is BCD! | |
| 476 movff RTCVALL,hours ; format is BCD! | |
| 477 movff RTCVALH,secs ; format is BCD! | |
| 478 movff RTCVALL,secs ; format is BCD! | |
| 479 movff RTCVALH,mins ; format is BCD! | |
| 480 banksel isr_backup ; Back to Bank0 ISR data | |
| 481 | |
| 482 ; Convert BCD to DEC and set registers | |
| 483 movff mins, isr1_temp | |
| 484 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 485 movff WREG,mins | |
| 486 movff secs, isr1_temp | |
| 487 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 488 movff WREG,secs | |
| 489 movff hours, isr1_temp | |
| 490 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 491 movff WREG,hours | |
| 492 movff month, isr1_temp | |
| 493 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 494 movff WREG,month | |
| 495 movff day, isr1_temp | |
| 496 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 497 movff WREG,day | |
| 498 movff year, isr1_temp | |
| 499 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 500 movff WREG,year | |
| 501 | |
| 502 ; Place once/second tasks for ISR here (Be sure of the right bank!) | |
| 503 banksel common ; flag1 is in Bank1 | |
| 504 btfss sleepmode ; in Sleepmode? | |
| 505 call get_ambient_level ; No, get ambient light level and set max_CCPR1L | |
| 506 | |
| 507 rcall isr_battery_gauge ; Add amount of battery consumption to battery_gauge:6 | |
| 508 | |
| 509 banksel common ; flag1 is in Bank1 | |
| 510 bsf onesecupdate ; A new second has begun | |
| 511 btfsc divemode ; in divemode? | |
| 512 rcall isr_divemode_1sec ; Yes, do some divemode stuff in bank common | |
| 513 | |
| 514 tstfsz secs ; Secs == 0 ? | |
| 515 return ; No, Done. | |
| 516 | |
| 517 ; banksel isr_backup ; Back to Bank0 ISR data | |
| 518 ; movff secs,isr1_temp ; Copy to Bank0 | |
| 519 ; movlw d'0' | |
| 520 ; cpfseq isr1_temp ; Secs == 0 ? | |
| 521 ; return ; Done. | |
| 522 | |
| 523 ; banksel common ; flag1 is in Bank1 | |
| 524 bsf oneminupdate ; A new minute has begun | |
| 525 | |
| 526 btfss divemode ; In Divemode? | |
| 527 rcall check_nofly_desat_time ; No, so reduce NoFly and Desat and increase interval | |
| 528 | |
| 529 ; Check if a new hour has just begun | |
| 530 ; banksel common ; flag1 is in Bank1 | |
| 531 tstfsz mins ; mins=0? | |
| 532 bra isr_rtcc2 ; No | |
| 533 bsf onehourupdate ; Yes, set flag | |
| 534 | |
| 535 isr_rtcc2: | |
| 536 banksel isr_backup ; Back to Bank0 ISR data | |
| 537 return ; Done. | |
| 538 | |
| 539 isr_battery_gauge: | |
| 540 banksel isr_backup ; Bank0 ISR data | |
| 541 movlw current_sleepmode ; 100µA/3600 -> nAs (Sleepmode current) | |
| 542 movwf isr1_temp ; Store value (low byte) | |
| 543 clrf isr2_temp ; High byte | |
| 544 | |
| 545 banksel common ; flag1 is in Bank1 | |
| 546 btfss sleepmode ; in Sleepmode? | |
| 547 rcall isr_battery_gauge2 ; No, compute current consumtion value into isr1_temp and isr2_temp | |
| 548 | |
| 549 banksel isr_backup ; Bank0 ISR data | |
| 550 movf isr1_temp,W ; 48Bit add of isr1_temp and isr2_temp into battery_gauge:6 | |
| 551 addwf battery_gauge+0,F | |
| 552 movf isr2_temp,W | |
| 553 addwfc battery_gauge+1,F | |
| 554 movlw .0 | |
| 555 addwfc battery_gauge+2,F | |
| 556 movlw .0 | |
| 557 addwfc battery_gauge+3,F | |
| 558 movlw .0 | |
| 559 addwfc battery_gauge+4,F | |
| 560 movlw .0 | |
| 561 addwfc battery_gauge+5,F | |
| 562 return | |
| 563 | |
| 564 isr_battery_gauge2: | |
| 565 ; set consumtion rate in nAs for an one second interval | |
| 566 ; Example: | |
| 567 ; movlw LOW .55556 ; 0,2A/3600*1e9s = nAs | |
| 568 ; movwf isr1_temp ; Low byte | |
| 569 ; movlw HIGH .55556 ; 0,2A/3600*1e9s = nAs | |
| 570 ; movwf isr2_temp ; High byte | |
| 571 | |
| 572 ; Current consumption for LED backlight is 47*CCPR1L+272 | |
| 573 movf CCPR1L,W | |
| 574 mullw current_backlight_multi | |
| 575 movlw LOW current_backlight_offset | |
| 576 addwf PRODL,F | |
| 577 movlw HIGH current_backlight_offset | |
| 578 addwfc PRODH,F | |
| 579 movff PRODL,isr1_temp | |
| 580 movff PRODH,isr2_temp ; isr1_temp and isr2_temp hold value for backlight | |
| 581 | |
| 582 ; Add current for CPU and GPU | |
| 583 ; speed_setting=1: ECO (3,1mA -> 861nAs), =2: NORMAL (5,50mA -> 1528nAs) or =3: FASTEST (8,04mA -> 2233nAs) | |
| 584 movlw .1 | |
| 585 cpfseq speed_setting | |
| 586 bra isr_battery_gauge3 | |
| 587 banksel isr_backup ; Bank0 ISR data | |
| 588 movlw LOW current_speed_eco | |
| 589 addwf isr1_temp,F | |
| 590 movlw HIGH current_speed_eco | |
| 591 addwfc isr2_temp,F | |
| 592 bra isr_battery_gauge5 | |
| 593 isr_battery_gauge3: | |
| 594 movlw .2 | |
| 595 cpfseq speed_setting | |
| 596 bra isr_battery_gauge4 | |
| 597 banksel isr_backup ; Bank0 ISR data | |
| 598 movlw LOW current_speed_normal | |
| 599 addwf isr1_temp,F | |
| 600 movlw HIGH current_speed_normal | |
| 601 addwfc isr2_temp,F | |
| 602 bra isr_battery_gauge5 | |
| 603 isr_battery_gauge4: | |
| 604 ; movlw .3 | |
| 605 ; cpfseq speed_setting | |
| 606 ; bra isr_battery_gauge5 | |
| 607 banksel isr_backup ; Bank0 ISR data | |
| 608 movlw LOW current_speed_fastest | |
| 609 addwf isr1_temp,F | |
| 610 movlw HIGH current_speed_fastest | |
| 611 addwfc isr2_temp,F | |
| 612 isr_battery_gauge5: | |
| 613 ; Add current if IR reciever is on | |
| 614 btfss ir_power ; IR enabled? | |
| 615 bra isr_battery_gauge6 ; no | |
| 616 movlw LOW current_ir_reciever | |
| 617 addwf isr1_temp,F | |
| 618 movlw HIGH current_ir_reciever | |
| 619 addwfc isr2_temp,F | |
| 620 isr_battery_gauge6: | |
| 621 ; Add current for compass/accelerometer | |
| 622 btfss compass_enabled ; compass active? | |
| 623 bra isr_battery_gauge7 ; no | |
| 624 movlw LOW current_compass | |
| 625 addwf isr1_temp,F | |
| 626 movlw HIGH current_compass | |
| 627 addwfc isr2_temp,F | |
| 628 isr_battery_gauge7: | |
| 629 return | |
| 630 | |
| 631 isr_divemode_1sec: | |
| 632 incf samplesecs,F ; "samplingrate" diving seconds done | |
| 633 decf samplesecs_value,W ; holds "samplingrate" value (minus 1 into WREG) | |
| 634 cpfsgt samplesecs ; Done? | |
| 635 bra isr_divemode_1sec2 ; no | |
| 636 | |
| 637 clrf samplesecs ; clear counter... | |
| 638 bsf store_sample ; ...and set bit for profile storage | |
| 639 isr_divemode_1sec2: | |
| 640 ; Increase re-setable average depth divetime counter | |
| 641 incf average_divesecs+0,F ; increase stopwatch registers | |
| 642 btfsc STATUS,Z | |
| 643 incf average_divesecs+1,F ; increase stopwatch registers | |
| 644 ; Increase total divetime (Regardless of start_dive_threshold) | |
| 645 incf total_divetime_seconds+0,F | |
| 646 movlw .0 | |
| 647 addwfc total_divetime_seconds+1,F ; Total dive time (Regardless of start_dive_threshold) | |
| 648 | |
| 649 btfss divemode2 ; displayed divetime is running? | |
| 650 return ; No (e.g. too shallow) | |
| 651 | |
| 652 ; increase divetime registers (Displayed dive time) | |
| 653 incf divesecs,F | |
| 654 movlw d'59' | |
| 655 cpfsgt divesecs | |
| 656 bra isr_divemode_1sec2a | |
| 657 | |
| 658 clrf divesecs | |
| 659 bsf realdive ; this bit is always set (again) if the dive is longer then one minute | |
| 660 incf divemins+0,F | |
| 661 movlw .0 | |
| 662 addwfc divemins+1,F ; increase divemins | |
| 663 | |
| 664 isr_divemode_1sec2a: | |
| 665 btfss FLAG_apnoe_mode ; Are we in Apnoe mode? | |
| 666 return ; No | |
| 667 | |
| 668 incf apnoe_secs,F ; increase descent registers | |
| 669 movlw d'59' | |
| 670 cpfsgt apnoe_secs ; full minute? | |
| 671 return ; No | |
| 672 clrf apnoe_secs | |
| 673 incf apnoe_mins,F ; increase descent mins | |
| 674 return | |
| 675 | |
| 676 ;============================================================================= | |
| 677 ; BCD to Binary convertion. | |
| 678 ; Input: isr1_temp = Value in BCD | |
| 679 ; Output WREG = value in binary. | |
| 680 isr_rtcc_convert: | |
| 681 swapf isr1_temp, W | |
| 682 andlw 0x0F ; W= tens | |
| 683 rlncf WREG, W ; W= 2*tens | |
| 684 subwf isr1_temp, F ; 16*tens + ones - 2*tens | |
| 685 subwf isr1_temp, F ; 14*tens + ones - 2*tens | |
| 686 subwf isr1_temp, W ; 12*tens + ones - 2*tens | |
| 687 return | |
| 688 | |
| 689 ;============================================================================= | |
| 690 | |
| 691 isr_switch_right: ; | |
| 692 bcf INTCON,INT0IE ; Disable INT0 | |
| 693 ; bcf power_sw2 ; Power-down switch circuity | |
| 694 banksel common ; flag1 is in Bank1 | |
| 695 bsf switch_right ; Set flag, button press is OK | |
| 696 bra isr_switch_common ; Continue... | |
| 697 | |
| 698 isr_switch_left: ; | |
| 699 bcf INTCON3,INT1IE ; Disable INT1 | |
| 700 ; bcf power_sw1 ; Power-down switch circuity | |
| 701 banksel common ; flag1 is in Bank1 | |
| 702 bsf switch_left ; Set flag, button press is OK | |
| 703 | |
| 704 isr_switch_common: | |
| 705 ; load timer1 for first press | |
| 706 clrf TMR1L | |
| 707 movlw TMR1H_VALUE_FIRST ; in steps of 7,8125ms | |
| 708 movwf TMR1H | |
| 709 bsf T1CON,TMR1ON ; Start Timer 1 | |
| 710 ; nop | |
| 711 ; nop | |
| 712 ; nop | |
| 713 ; nop | |
| 714 ; nop | |
| 715 ; nop | |
| 716 ; nop | |
| 717 ; nop | |
| 718 ; nop | |
| 719 ; nop | |
| 720 ; nop | |
| 721 ; nop | |
| 722 ; nop | |
| 723 ; nop | |
| 724 ; nop | |
| 725 ; nop | |
| 726 ; nop | |
| 727 ; nop | |
| 728 ; nop | |
| 729 ; nop | |
| 730 ; nop | |
| 731 ; nop | |
| 732 ; nop | |
| 733 ; nop | |
| 734 | |
| 735 banksel isr_backup ; Select Bank0 for ISR data. | |
| 736 ; bsf power_sw1 | |
| 737 bcf INTCON3,INT1IF ; Clear flag | |
| 738 ; bsf power_sw2 ; Power-up switch circuity | |
| 739 bcf INTCON,INT0IF ; Clear flag | |
| 740 return | |
| 741 | |
| 742 timer1int: | |
| 743 bcf PIR1,TMR1IF ; Clear flag | |
| 744 banksel common ; flag1 is in Bank1 | |
| 745 btfss switch_left1 ; Left button hold-down? | |
| 746 bra timer1int_left ; Yes | |
| 747 btfss switch_right2 ; Right button hold-down? | |
| 748 bra timer1int_right ; Yes | |
| 749 | |
| 750 ; No button hold-down, stop Timer 1 | |
| 751 bcf T1CON,TMR1ON ; Stop Timer 1 | |
| 752 bsf INTCON,INT0IE ; Enable INT0 | |
| 753 bsf INTCON3,INT1IE ; Enable INT1 | |
| 754 bcf INTCON,INT0IF ; Clear flag | |
| 755 bcf INTCON3,INT1IF ; Clear flag | |
| 756 ; bcf switch_left | |
| 757 ; bcf switch_right | |
| 758 return | |
| 759 | |
| 760 timer1int_left: | |
| 761 ; bcf power_sw1 ; Power-down switch circuity | |
| 762 bsf switch_left ; (Re-)Set flag | |
| 763 bra timer1int_common ; Continue | |
| 764 timer1int_right: | |
| 765 ; bcf power_sw2 ; Power-down switch circuity | |
| 766 bsf switch_right ; (Re-)Set flag | |
| 767 timer1int_common: | |
| 768 ; load timer1 for next press | |
| 769 clrf TMR1L | |
| 770 movlw TMR1H_VALUE_CONT ; Surface mode | |
| 771 btfsc divemode | |
| 772 movlw TMR1H_VALUE_CONT_DIVE ; Dive mode | |
| 773 movwf TMR1H | |
| 774 ; nop | |
| 775 ; nop | |
| 776 ; nop | |
| 777 ; nop | |
| 778 ; nop | |
| 779 ; nop | |
| 780 ; nop | |
| 781 ; nop | |
| 782 ; nop | |
| 783 ; nop | |
| 784 ; nop | |
| 785 ; nop | |
| 786 ; nop | |
| 787 ; nop | |
| 788 ; nop | |
| 789 ; nop | |
| 790 ; | |
| 791 ; nop | |
| 792 ; nop | |
| 793 ; nop | |
| 794 ; nop | |
| 795 ; nop | |
| 796 ; nop | |
| 797 ; nop | |
| 798 ; nop | |
| 799 ; bsf power_sw1 | |
| 800 bcf INTCON3,INT1IF ; Clear flag | |
| 801 ; bsf power_sw2 ; Power-up switch circuity | |
| 802 bcf INTCON,INT0IF ; Clear flag | |
| 803 return ; Return from timer1int with timer1 kept running | |
| 804 | |
| 805 ;============================================================================= | |
| 806 | |
| 807 check_nofly_desat_time: | |
| 808 movf nofly_time+0,W ; Is nofly null ? | |
| 809 iorwf nofly_time+1,W | |
| 810 bz check_nofly_desat_time2 ; yes... | |
| 811 | |
| 812 movlw d'1' | |
| 813 subwf nofly_time+0,F | |
| 814 movlw d'0' | |
| 815 subwfb nofly_time+1,F ; reduce by one | |
| 816 | |
| 817 check_nofly_desat_time2: | |
| 818 movf desaturation_time+0,W ; Is Desat null ? | |
| 819 iorwf desaturation_time+1,W | |
| 820 bz check_nofly_desat_time3 ; yes... | |
| 821 | |
| 822 movlw d'1' | |
| 823 subwf desaturation_time+0,F | |
| 824 movlw d'0' | |
| 825 subwfb desaturation_time+1,F ; reduce by one... | |
| 826 | |
| 827 ; Increase surface interval timer | |
| 828 movlw d'1' | |
| 829 addwf surface_interval+0,F | |
| 830 movlw d'0' | |
| 831 addwfc surface_interval+1,F | |
| 832 return ; Done | |
| 833 | |
| 834 check_nofly_desat_time3: | |
| 835 clrf surface_interval+0 | |
| 836 clrf surface_interval+1 ; Clear surface interval timer | |
| 837 return ; Done. | |
| 838 | |
| 839 ;============================================================================= | |
| 840 | |
| 841 isr_restore_clock: | |
| 842 banksel isr_backup | |
| 843 movff speed_setting,isr1_temp ; Copy to Bank0 | |
| 844 movlw d'1' | |
| 845 cpfseq isr1_temp | |
| 846 bra isr_restore_speed2 | |
| 847 ; Reset to eco | |
| 848 movlw b'00000000' | |
| 849 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 850 movlw b'00110010' | |
| 851 movwf OSCCON ; 1MHz INTOSC | |
| 852 movlw T2CON_ECO | |
| 853 movwf T2CON | |
| 854 bra isr_restore_exit | |
| 855 isr_restore_speed2: | |
| 856 movlw d'2' | |
| 857 cpfseq isr1_temp | |
| 858 bra isr_restore_speed3 | |
| 859 ; Reset to normal | |
| 860 movlw b'01110010' | |
| 861 movwf OSCCON ; 16MHz INTOSC | |
| 862 movlw b'00000000' | |
| 863 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 864 movlw T2CON_NORMAL | |
| 865 movwf T2CON | |
| 866 bra isr_restore_exit | |
| 867 | |
| 868 isr_restore_speed3: | |
| 869 ; Reset to fastest | |
| 870 movlw b'01110010' ; 16MHz INTOSC | |
| 871 movwf OSCCON | |
| 872 movlw b'01000000' | |
| 873 movwf OSCTUNE ; 4x PLL Enable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 874 movlw T2CON_FASTEST | |
| 875 movwf T2CON | |
| 876 ; bra isr_restore_exit | |
| 877 isr_restore_exit: | |
| 878 btfss OSCCON,HFIOFS | |
| 879 bra isr_restore_exit ; loop until PLL is stable | |
| 880 return | |
| 881 | |
| 882 END |