Mercurial > public > hwos_code
annotate src/isr.asm @ 582:b455b31ce022
work on 2.97 stable
| author | heinrichsweikamp |
|---|---|
| date | Mon, 26 Feb 2018 16:40:28 +0100 |
| parents | c8ea60294175 |
| children | ca4556fb60b9 |
| rev | line source |
|---|---|
| 0 | 1 ;============================================================================= |
| 2 ; | |
| 582 | 3 ; File isr.asm REFACTORED VERSION V2.98 |
| 0 | 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 | |
| 275 | 12 #include "hwos.inc" |
| 582 | 13 #include "shared_definitions.h" ; Mailbox from/to p2_deco.c |
| 0 | 14 #include "ms5541.inc" |
| 15 #include "adc_lightsensor.inc" | |
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16 #include "eeprom_rs232.inc" |
| 0 | 17 |
| 18 ;============================================================================= | |
| 19 | |
| 582 | 20 extern start |
| 0 | 21 |
| 582 | 22 isr_high CODE 0x0008 ; High Priority Interrupts |
| 23 bra HighInt | |
| 24 nop | |
| 25 nop | |
| 26 nop | |
| 27 nop | |
| 28 nop | |
| 29 nop | |
| 30 bra HighInt | |
| 0 | 31 |
| 582 | 32 isr_low CODE 0x00018 ; Low Priority Interrupts |
| 0 | 33 ; *** low priority interrupts not used |
| 582 | 34 retfie FAST ; Restores BSR, STATUS and WREG |
| 0 | 35 |
| 36 HighInt: | |
| 582 | 37 movff PRODL,isr_prod+0 |
| 38 movff PRODH,isr_prod+1 | |
| 0 | 39 |
| 582 | 40 ; Buttons |
| 41 btfsc PIR1,TMR1IF ; Timer1 INT (Button hold-down Timer) | |
| 42 rcall timer1int | |
| 43 btfsc INTCON,INT0IF ; Buttons | |
| 44 rcall isr_switch_right | |
| 45 btfsc INTCON3,INT1IF ; Buttons | |
| 46 rcall isr_switch_left | |
| 0 | 47 |
| 582 | 48 ; IR/S8 link timer int |
| 49 btfsc PIR3,RC2IF ; UART2 | |
| 50 rcall isr_uart2 ; IR/S8-Link | |
| 51 btfsc PIR2,TMR3IF ; Timer 3 | |
| 52 rcall isr_timer3 ; IR-Link Timeout | |
| 113 | 53 |
| 582 | 54 ; Pressure sensor and others |
| 55 btfsc PIR5,TMR7IF ; Timer 7 | |
| 56 rcall isr_tmr7 ; Every 62,5ms | |
| 113 | 57 |
| 582 | 58 ; RTCC |
| 59 btfsc PIR3,RTCCIF ; Real-time-clock interrupt | |
| 60 rcall isr_rtcc ; May return in bank common! | |
| 0 | 61 |
| 582 | 62 movff isr_prod+1,PRODH |
| 63 movff isr_prod+0,PRODL | |
| 64 retfie FAST ; Restores BSR, STATUS and WREG | |
| 0 | 65 |
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66 isr_set_speed_to_normal: |
| 582 | 67 ; Set speed to normal |
| 68 movlw b'01110010' | |
| 69 movwf OSCCON ; 16MHz INTOSC | |
| 70 movlw b'00000000' | |
| 71 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 72 movlw b'00001101' ; 1:2 Postscaler, 1:4 Prescaler, Timer 2 start -> 1960Hz (no-flicker) | |
| 73 movwf T2CON | |
| 74 btfss OSCCON,HFIOFS | |
| 75 bra $-2 ; Wait until clock is stable | |
| 76 return | |
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77 |
| 582 | 78 isr_dimm_tft: ; Adjust until max_CCPR1L=CCPR1L ! |
| 79 banksel common | |
| 80 btfsc tft_is_dimming ; Ignore while dimming | |
| 81 return | |
| 82 banksel isr_backup | |
| 83 movf max_CCPR1L,W | |
| 84 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L? | |
| 85 bra isr_dimm_tft2 ; No, dimm up | |
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86 ; dimm down |
| 582 | 87 decf CCPR1L,F ; -1 |
| 88 return | |
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89 isr_dimm_tft2: |
| 582 | 90 movf max_CCPR1L,W |
| 91 sublw ambient_light_min_eco | |
| 92 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L-ambient_light_min_eco? | |
| 93 bra isr_dimm_tft3 ; No, dimm up slow | |
| 94 ; dimm up faster | |
| 95 movlw .10 | |
| 96 addwf CCPR1L,F | |
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97 isr_dimm_tft3: |
| 582 | 98 incf CCPR1L,F ; +1 |
| 99 return | |
| 100 nop | |
| 101 nop ; block flash here | |
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102 |
| 582 | 103 isr_restore CODE 0x00080 ; Restore first flash page from EEPROM |
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104 restore_flash_0x00080: |
| 582 | 105 goto restore_flash |
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106 |
| 582 | 107 isr_routines ; CODE |
| 0 | 108 ;============================================================================= |
| 109 | |
| 582 | 110 isr_uart2: ; IR/S8-Link |
| 111 banksel RCREG2 | |
| 112 movf RCREG2,W | |
| 113 bcf RCSTA2,CREN ; Clear receiver status | |
| 114 bsf RCSTA2,CREN | |
| 115 banksel isr_backup | |
| 116 incf ir_s8_counter,F ; Increase counter | |
| 117 movff ir_s8_counter,isr1_temp ; Copy | |
| 118 dcfsnz isr1_temp,F | |
| 119 movwf ir_s8_buffer+.0 | |
| 120 dcfsnz isr1_temp,F | |
| 121 movwf ir_s8_buffer+.1 | |
| 122 dcfsnz isr1_temp,F | |
| 123 movwf ir_s8_buffer+.2 | |
| 124 dcfsnz isr1_temp,F | |
| 125 movwf ir_s8_buffer+.3 | |
| 126 dcfsnz isr1_temp,F | |
| 127 movwf ir_s8_buffer+.4 | |
| 128 dcfsnz isr1_temp,F | |
| 129 movwf ir_s8_buffer+.5 | |
| 130 dcfsnz isr1_temp,F | |
| 131 movwf ir_s8_buffer+.6 | |
| 132 dcfsnz isr1_temp,F | |
| 133 movwf ir_s8_buffer+.7 | |
| 134 dcfsnz isr1_temp,F | |
| 135 movwf ir_s8_buffer+.8 | |
| 136 dcfsnz isr1_temp,F | |
| 137 movwf ir_s8_buffer+.9 | |
| 138 dcfsnz isr1_temp,F | |
| 139 movwf ir_s8_buffer+.10 | |
| 140 dcfsnz isr1_temp,F | |
| 141 movwf ir_s8_buffer+.11 | |
| 142 dcfsnz isr1_temp,F | |
| 143 movwf ir_s8_buffer+.12 | |
| 144 dcfsnz isr1_temp,F | |
| 145 movwf ir_s8_buffer+.13 | |
| 146 dcfsnz isr1_temp,F | |
| 147 movwf ir_s8_buffer+.14 | |
| 148 dcfsnz isr1_temp,F | |
| 149 movwf ir_s8_buffer+.15 | |
| 150 dcfsnz isr1_temp,F | |
| 151 movwf ir_s8_buffer+.16 | |
| 152 dcfsnz isr1_temp,F | |
| 153 movwf ir_s8_buffer+.17 | |
| 113 | 154 |
| 582 | 155 clrf TMR3L ; Preload timer |
| 156 movlw .253 | |
| 157 movwf TMR3H | |
| 158 bsf T3CON,TMR3ON ; (Re)Start Timeout counter | |
| 159 return | |
| 0 | 160 |
| 582 | 161 isr_timer3: ; IR/S8-Link Timeout |
| 162 bcf T3CON,TMR3ON ; Stop Timer3 | |
| 163 banksel isr_backup ; Select Bank0 for ISR data. | |
| 164 movlw .15 | |
| 165 cpfseq ir_s8_counter ; Got exact 15bytes? | |
| 166 bra isr_timer3_1 ; No, test for 16bytes | |
| 167 bra isr_timer3_ir ; Got 15 bytes, compute local checksum | |
| 0 | 168 isr_timer3_1: |
| 582 | 169 movlw .16 |
| 170 cpfseq ir_s8_counter ; Got exact 16bytes? | |
| 171 bra isr_timer3_2 ; No, test for 17bytes | |
| 172 tstfsz ir_s8_buffer+.15 ; Last byte=0x00 | |
| 173 bra isr_timer3_exit ; No, exit | |
| 174 bra isr_timer3_ir ; Got 16 bytes, compute local checksum | |
| 113 | 175 isr_timer3_2: |
| 582 | 176 movlw .17 |
| 177 cpfseq ir_s8_counter ; Got exact 17bytes? | |
| 178 bra isr_timer3_exit ; No, exit | |
| 179 bra isr_timer3_s8 ; S8 data | |
| 0 | 180 |
| 582 | 181 isr_timer3_ir: ; IR input |
| 182 movff ir_s8_buffer+.0,PRODL | |
| 183 clrf PRODH | |
| 184 movf ir_s8_buffer+.1,W | |
| 185 rcall isr_timer3_checksum | |
| 186 movf ir_s8_buffer+.2,W | |
| 187 rcall isr_timer3_checksum | |
| 188 movf ir_s8_buffer+.3,W | |
| 189 rcall isr_timer3_checksum | |
| 190 movf ir_s8_buffer+.4,W | |
| 191 rcall isr_timer3_checksum | |
| 192 movf ir_s8_buffer+.5,W | |
| 193 rcall isr_timer3_checksum | |
| 194 movf ir_s8_buffer+.6,W | |
| 195 rcall isr_timer3_checksum | |
| 196 movf ir_s8_buffer+.7,W | |
| 197 rcall isr_timer3_checksum | |
| 198 movf ir_s8_buffer+.8,W | |
| 199 rcall isr_timer3_checksum | |
| 200 movf ir_s8_buffer+.9,W | |
| 201 rcall isr_timer3_checksum | |
| 202 movf ir_s8_buffer+.10,W | |
| 203 rcall isr_timer3_checksum | |
| 204 movf ir_s8_buffer+.11,W | |
| 205 rcall isr_timer3_checksum | |
| 206 movf ir_s8_buffer+.12,W | |
| 207 rcall isr_timer3_checksum | |
| 0 | 208 |
| 582 | 209 ; Compare checksum |
| 210 movf ir_s8_buffer+.13,W | |
| 211 cpfseq PRODL ; Checksum ok? | |
| 212 bra isr_timer3_exit ; No, exit | |
| 213 movf ir_s8_buffer+.14,W | |
| 214 cpfseq PRODH ; Checksum ok? | |
| 215 bra isr_timer3_exit ; No, exit | |
| 0 | 216 |
| 582 | 217 ; Checksum OK, copy results |
| 218 movff ir_s8_buffer+.1,hud_status_byte | |
| 219 movff ir_s8_buffer+.2,o2_mv_sensor1+0 | |
| 220 movff ir_s8_buffer+.3,o2_mv_sensor1+1 | |
| 221 movff ir_s8_buffer+.4,o2_mv_sensor2+0 | |
| 222 movff ir_s8_buffer+.5,o2_mv_sensor2+1 | |
| 223 movff ir_s8_buffer+.6,o2_mv_sensor3+0 | |
| 224 movff ir_s8_buffer+.7,o2_mv_sensor3+1 | |
| 225 movff ir_s8_buffer+.8,o2_ppo2_sensor1 | |
| 226 movff ir_s8_buffer+.9,o2_ppo2_sensor2 | |
| 227 movff ir_s8_buffer+.10,o2_ppo2_sensor3 | |
| 228 movff ir_s8_buffer+.11,hud_battery_mv+0 | |
| 229 movff ir_s8_buffer+.12,hud_battery_mv+1 | |
| 0 | 230 |
| 582 | 231 movlw ir_timeout_value ; multiples of 62,5ms |
| 232 movwf ir_s8_timeout ; Reload timeout | |
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233 |
| 582 | 234 banksel hud_status_byte |
| 235 bsf hud_connection_ok ; Set manually for hwHUD w/o the HUD module... | |
| 236 banksel isr_backup ; Select Bank0 for ISR data. | |
| 237 | |
| 0 | 238 isr_timer3_exit: |
| 582 | 239 clrf ir_s8_counter ; Clear pointer |
| 240 bcf PIR2,TMR3IF ; Clear flag | |
| 241 return | |
| 0 | 242 |
| 243 isr_timer3_checksum: | |
| 582 | 244 addwf PRODL,F |
| 245 movlw .0 | |
| 246 addwfc PRODH,F | |
| 247 return | |
| 0 | 248 |
| 582 | 249 isr_timer3_s8: ; S8 input |
| 250 movff ir_s8_buffer+.0,PRODL | |
| 251 clrf PRODH | |
| 252 movf ir_s8_buffer+.1,W | |
| 253 rcall isr_timer3_checksum | |
| 254 movf ir_s8_buffer+.2,W | |
| 255 rcall isr_timer3_checksum | |
| 256 movf ir_s8_buffer+.3,W | |
| 257 rcall isr_timer3_checksum | |
| 258 movf ir_s8_buffer+.4,W | |
| 259 rcall isr_timer3_checksum | |
| 260 movf ir_s8_buffer+.5,W | |
| 261 rcall isr_timer3_checksum | |
| 262 movf ir_s8_buffer+.6,W | |
| 263 rcall isr_timer3_checksum | |
| 264 movf ir_s8_buffer+.7,W | |
| 265 rcall isr_timer3_checksum | |
| 266 movf ir_s8_buffer+.8,W | |
| 267 rcall isr_timer3_checksum | |
| 268 movf ir_s8_buffer+.9,W | |
| 269 rcall isr_timer3_checksum | |
| 270 movf ir_s8_buffer+.10,W | |
| 271 rcall isr_timer3_checksum | |
| 272 movf ir_s8_buffer+.11,W | |
| 273 rcall isr_timer3_checksum | |
| 274 movf ir_s8_buffer+.12,W | |
| 275 rcall isr_timer3_checksum | |
| 276 movf ir_s8_buffer+.13,W | |
| 277 rcall isr_timer3_checksum | |
| 278 movf ir_s8_buffer+.14,W | |
| 279 rcall isr_timer3_checksum | |
| 113 | 280 |
| 582 | 281 ; Compare checksum |
| 282 movf ir_s8_buffer+.15,W | |
| 283 cpfseq PRODL ; Checksum ok? | |
| 284 bra isr_timer3_exit ; No, exit | |
| 285 movf ir_s8_buffer+.16,W | |
| 286 cpfseq PRODH ; Checksum ok? | |
| 287 bra isr_timer3_exit ; No, exit | |
| 113 | 288 |
| 582 | 289 ; Checksum OK, copy results |
| 290 movff ir_s8_buffer+.3,hud_status_byte | |
| 291 movff ir_s8_buffer+.13,hud_battery_mv+0 | |
| 292 movff ir_s8_buffer+.14,hud_battery_mv+1 | |
| 113 | 293 |
| 582 | 294 banksel common |
| 295 btfsc new_s8_data_available ; =1: Old data already processed? | |
| 296 bra isr_timer3_skip ; No, skip copying new results | |
| 113 | 297 |
| 582 | 298 movff ir_s8_buffer+.6,s8_rawdata_sensor1+2 |
| 299 movff ir_s8_buffer+.5,s8_rawdata_sensor1+1 | |
| 300 movff ir_s8_buffer+.4,s8_rawdata_sensor1+0 | |
| 301 movff ir_s8_buffer+.9,s8_rawdata_sensor2+2 | |
| 302 movff ir_s8_buffer+.8,s8_rawdata_sensor2+1 | |
| 303 movff ir_s8_buffer+.7,s8_rawdata_sensor2+0 | |
| 304 movff ir_s8_buffer+.12,s8_rawdata_sensor3+2 | |
| 305 movff ir_s8_buffer+.11,s8_rawdata_sensor3+1 | |
| 306 movff ir_s8_buffer+.10,s8_rawdata_sensor3+0 | |
| 307 banksel common | |
| 308 bsf new_s8_data_available ; set flag | |
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309 |
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310 isr_timer3_skip: |
| 582 | 311 banksel ir_s8_timeout |
| 312 movlw ir_timeout_value ; multiples of 62,5ms | |
| 313 movwf ir_s8_timeout ; Reload timeout | |
| 314 bra isr_timer3_exit ; Exit | |
| 113 | 315 |
| 316 | |
| 0 | 317 ;============================================================================= |
| 318 | |
| 582 | 319 isr_tmr7: ; each 62,5ms |
| 320 bcf PIR5,TMR7IF ; clear flag | |
| 321 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
| 469 | 322 movlw .248 |
| 582 | 323 movwf TMR7H ; -> Rollover after 2048 cycles -> 62,5ms |
| 0 | 324 |
| 582 | 325 banksel common |
| 448 | 326 call get_analog_switches ; Get analog readings |
| 327 btfss INTCON3,INT1IE | |
| 582 | 328 bra isr_tmr7_a |
| 448 | 329 btfsc analog_sw2_pressed |
| 330 rcall isr_switch_left | |
| 331 isr_tmr7_a: | |
| 582 | 332 banksel common |
| 448 | 333 btfss INTCON,INT0IE |
| 582 | 334 bra isr_tmr7_b |
| 448 | 335 btfsc analog_sw1_pressed |
| 336 rcall isr_switch_right | |
| 337 isr_tmr7_b: | |
| 582 | 338 banksel common |
| 339 btfss no_sensor_int ; No sensor interrupt (because it's addressed during sleep) | |
| 340 bra isr_tmr7_c ; No, continue | |
| 341 banksel isr_backup ; Back to Bank0 ISR data | |
| 342 return | |
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343 isr_tmr7_c: |
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344 banksel isr_backup |
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345 movf max_CCPR1L,W ; Dimm value |
| 582 | 346 cpfseq CCPR1L ; = current PWM value? |
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347 rcall isr_dimm_tft ; No, adjust until max_CCPR1L=CCPR1L ! |
| 582 | 348 |
| 349 banksel isr_backup | |
| 350 decfsz ir_s8_timeout,F ; IR Data still valid? | |
| 351 bra isr_tmr7_2 ; Yes, continue | |
| 352 ; timeout, clear IR-Data | |
| 0 | 353 |
| 582 | 354 movlw ir_timeout_value ; multiples of 62,5ms |
| 355 movwf ir_s8_timeout ; Reload timeout | |
| 0 | 356 |
| 582 | 357 banksel common |
| 358 btfss analog_o2_input | |
| 359 bra isr_tmr7_1a ; Always with normal ostc3 hardware | |
| 360 btfss s8_digital | |
| 361 bra isr_tmr7_2 ; only when digital | |
| 113 | 362 isr_tmr7_1a: |
| 582 | 363 clrf o2_mv_sensor1+0 ; S8/IR timeout clears all analog input readings to zero -> Fallback will be triggered when sensor mode was used |
| 364 clrf o2_mv_sensor1+1 | |
| 365 clrf o2_mv_sensor2+0 | |
| 366 clrf o2_mv_sensor2+1 | |
| 367 clrf o2_mv_sensor3+0 | |
| 368 clrf o2_mv_sensor3+1 | |
| 369 banksel hud_battery_mv | |
| 370 clrf hud_battery_mv+0 | |
| 371 clrf hud_battery_mv+1 | |
| 372 banksel hud_status_byte | |
| 373 clrf hud_status_byte | |
| 374 clrf o2_ppo2_sensor1 ; for IR/S8 UD | |
| 375 clrf o2_ppo2_sensor2 | |
| 376 clrf o2_ppo2_sensor3 | |
| 377 | |
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378 banksel common |
| 582 | 379 bsf new_s8_data_available ; set flag to update in surface mode |
| 380 | |
| 0 | 381 isr_tmr7_2: |
| 582 | 382 banksel common |
| 383 btfss no_sensor_int ; No sensor interrupt (because it's addressed during sleep) | |
| 384 bra isr_sensor_state2 ; No, continue | |
| 385 banksel isr_backup ; Back to Bank0 ISR data | |
| 386 return | |
| 0 | 387 |
| 388 isr_sensor_state2: | |
| 582 | 389 banksel common |
| 390 movff sensor_state_counter,WREG | |
| 391 btfss WREG,0 ; every 1/4 second | |
| 392 bsf quarter_second_update ; Set flag | |
| 393 banksel isr_backup ; Back to Bank0 ISR data | |
| 394 movlw d'2' | |
| 395 cpfseq speed_setting ; Set to normal in case it's not already in normal speed mode | |
| 396 rcall isr_set_speed_to_normal | |
| 397 | |
| 398 incf sensor_state_counter,F ; counts to eight for state machine | |
| 0 | 399 |
| 400 ; State 1: Clear flags and average registers, get temperature (51us) and start pressure integration (73,5us) | |
| 401 ; State 2: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 402 ; State 3: Get temperature (51us) and start pressure integration (73,5us) | |
| 403 ; State 4: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 404 ; State 5: Get temperature (51us) and start pressure integration (73,5us) | |
| 405 ; State 6: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
| 406 ; State 7: Get temperature (51us) and start pressure integration (73,5us) | |
| 407 ; 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 | |
| 582 | 408 |
| 409 movff sensor_state_counter,WREG ; WREG used as temp here... | |
| 410 dcfsnz WREG,F | |
| 411 bra sensor_int_state1_plus_restart ; Do State 1 | |
| 412 dcfsnz WREG,F | |
| 413 bra sensor_int_state2 ; Do State 2 | |
| 414 dcfsnz WREG,F | |
| 415 bra sensor_int_state1 ; Do State 3 | |
| 416 dcfsnz WREG,F | |
| 417 bra sensor_int_state2 ; Do State 4 | |
| 418 dcfsnz WREG,F | |
| 419 bra sensor_int_state1 ; Do State 5 | |
| 420 dcfsnz WREG,F | |
| 421 bra sensor_int_state2 ; Do State 6 | |
| 422 dcfsnz WREG,F | |
| 423 bra sensor_int_state1 ; Do State 7 | |
| 424 ; bra sensor_int2_plus_average ; Do State 8 | |
| 0 | 425 ;sensor_int2_plus_average: |
| 582 | 426 ; First, do state2: |
| 427 call get_pressure_value ; State2: Get pressure (51us) | |
| 428 call get_temperature_start ; and start temperature integration (73,5us) | |
| 429 call calculate_compensation ; calculate temperature compensated pressure (27us) | |
| 0 | 430 ; Build average |
| 582 | 431 bcf STATUS,C ; clear carry bit. |
| 432 rrcf amb_pressure_avg+1 ; amb_pressure sum / 2 | |
| 433 rrcf amb_pressure_avg+0 | |
| 434 bcf STATUS,C ; clear carry bit, twice. | |
| 435 rrcf amb_pressure_avg+1 ; amb_pressure sum / 4 | |
| 436 rrcf amb_pressure_avg+0 | |
| 0 | 437 |
| 582 | 438 movff amb_pressure_avg+1,amb_pressure+1 ; copy into actual register |
| 439 movff amb_pressure_avg+0,amb_pressure+0 | |
| 0 | 440 |
| 582 | 441 bcf STATUS,C |
| 442 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
| 443 bsf STATUS,C | |
| 444 rrcf temperature_avg+1 ; Signed temperature /2 | |
| 445 rrcf temperature_avg+0 | |
| 446 bcf STATUS,C | |
| 447 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
| 448 bsf STATUS,C | |
| 449 rrcf temperature_avg+1 ; Signed temperature /4 | |
| 450 rrcf temperature_avg+0 | |
| 0 | 451 |
| 582 | 452 movff temperature_avg+1,temperature+1 ; copy into actual register |
| 453 movff temperature_avg+0,temperature+0 | |
| 0 | 454 |
| 582 | 455 banksel common ; flag1 is in Bank1 |
| 456 bcf temp_changed ; Clear flag for temperature update | |
| 457 bcf pressure_refresh ; Clear flag for pressure update | |
| 458 banksel isr_backup ; Back to Bank0 ISR data | |
| 0 | 459 |
| 582 | 460 ; Temp changed? |
| 461 movf temperature+0,W | |
| 462 cpfseq last_temperature+0 | |
| 463 bra isr_sensor_state2_2 ; Yes | |
| 464 movf temperature+1,W | |
| 465 cpfseq last_temperature+1 | |
| 466 bra isr_sensor_state2_2 ; Yes | |
| 0 | 467 |
| 582 | 468 bra isr_sensor_state2_3 ; no change |
| 0 | 469 |
| 470 isr_sensor_state2_2: | |
| 582 | 471 banksel common ; flag1 is in Bank1 |
| 472 bsf temp_changed ; Yes | |
| 473 banksel isr_backup ; Back to Bank0 ISR data | |
| 0 | 474 isr_sensor_state2_3: |
| 582 | 475 movff temperature+0,last_temperature+0 ; Copy for compare |
| 476 movff temperature+1,last_temperature+1 | |
| 0 | 477 |
| 582 | 478 movf amb_pressure+0,W |
| 479 cpfseq last_pressure+0 | |
| 480 bra isr_sensor_state2_4 ; Yes | |
| 481 movf amb_pressure+1,W | |
| 482 cpfseq last_pressure+1 | |
| 483 bra isr_sensor_state2_4 ; Yes | |
| 0 | 484 |
| 582 | 485 bra isr_sensor_state2_5 ; No change |
| 0 | 486 isr_sensor_state2_4: |
| 582 | 487 banksel common ; flag1 is in Bank1 |
| 488 bsf pressure_refresh ; Yes | |
| 489 banksel isr_backup ; Back to Bank0 ISR data | |
| 0 | 490 isr_sensor_state2_5: |
| 582 | 491 movff amb_pressure+0,last_pressure+0 ; Copy for compare |
| 492 movff amb_pressure+1,last_pressure+1 | |
| 0 | 493 |
| 582 | 494 clrf sensor_state_counter ; Then reset State counter |
| 495 banksel common ; flag2 is in Bank1 | |
| 496 btfss simulatormode_active ; are we in simulator mode? | |
| 497 bra comp_air_pressure ; no | |
| 498 ; Always set pressure_refresh flag in simulator mode | |
| 499 bsf pressure_refresh ; Yes | |
| 500 banksel isr_backup ; Back to Bank0 ISR data | |
| 501 movlw LOW d'1000' ; yes, so simulate 1000mbar surface pressure | |
| 502 movwf last_surfpressure+0 | |
| 503 movlw HIGH d'1000' | |
| 504 movwf last_surfpressure+1 | |
| 0 | 505 |
| 506 comp_air_pressure: | |
| 582 | 507 banksel isr_backup ; Back to Bank0 ISR data |
| 508 movf last_surfpressure+0,W ; compensate air pressure | |
| 509 subwf amb_pressure+0,W | |
| 510 movwf rel_pressure+0 ; rel_pressure stores depth! | |
| 0 | 511 |
| 582 | 512 movf last_surfpressure+1,W |
| 513 subwfb amb_pressure+1,W | |
| 514 movwf rel_pressure+1 | |
| 515 btfss STATUS,N ; result is below zero? | |
| 516 bra sensor_int_state_exit | |
| 517 clrf rel_pressure+0 ; Yes, do not display negative depths | |
| 518 clrf rel_pressure+1 ; e.g. when surface air pressure dropped during the dive | |
| 519 bra sensor_int_state_exit | |
| 0 | 520 |
| 521 sensor_int_state1_plus_restart: | |
| 582 | 522 clrf amb_pressure_avg+0 ; pressure average registers |
| 523 clrf amb_pressure_avg+1 | |
| 524 clrf temperature_avg+0 | |
| 525 clrf temperature_avg+1 | |
| 0 | 526 |
| 527 sensor_int_state1: | |
| 582 | 528 call get_temperature_value ; State 1: Get temperature |
| 529 call get_pressure_start ; and start pressure integration. | |
| 530 bra sensor_int_state_exit | |
| 0 | 531 |
| 532 sensor_int_state2: | |
| 582 | 533 call get_pressure_value ; State2: Get pressure (51us) |
| 534 call get_temperature_start ; and start temperature integration (73,5us) | |
| 535 call calculate_compensation ; calculate temperature compensated pressure (233us) | |
| 536 ;bra sensor_int_state_exit | |
| 537 | |
| 0 | 538 sensor_int_state_exit: |
| 582 | 539 rcall isr_restore_clock ; Restore clock |
| 540 return | |
| 541 | |
| 0 | 542 ;============================================================================= |
| 543 | |
| 544 isr_rtcc: ; each second | |
| 582 | 545 bcf PIR3,RTCCIF ; clear flag |
| 546 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
| 547 bsf RTCCFG,RTCPTR1 | |
| 548 bsf RTCCFG,RTCPTR0 ; year | |
| 549 movff RTCVALL,year ; format is BCD! | |
| 550 movff RTCVALH,day ; dummy read | |
| 551 movff RTCVALL,day ; format is BCD! | |
| 552 movff RTCVALH,month ; format is BCD! | |
| 553 movff RTCVALL,hours ; format is BCD! | |
| 554 movff RTCVALH,secs ; format is BCD! | |
| 555 movff RTCVALL,secs ; format is BCD! | |
| 556 movff RTCVALH,mins ; format is BCD! | |
| 557 banksel isr_backup ; Back to Bank0 ISR data | |
| 558 | |
| 559 ; Convert BCD to DEC and set registers | |
| 560 movff mins, isr1_temp | |
| 561 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 562 movff WREG,mins | |
| 563 movff secs, isr1_temp | |
| 564 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 565 movff WREG,secs | |
| 566 movff hours, isr1_temp | |
| 567 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 568 movff WREG,hours | |
| 569 movff month, isr1_temp | |
| 570 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 571 movff WREG,month | |
| 572 movff day, isr1_temp | |
| 573 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 574 movff WREG,day | |
| 575 movff year, isr1_temp | |
| 576 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
| 577 movff WREG,year | |
| 0 | 578 |
| 579 ; Place once/second tasks for ISR here (Be sure of the right bank!) | |
| 582 | 580 banksel common ; flag1 is in Bank1 |
| 581 btfss sleepmode ; in Sleepmode? | |
| 582 call get_ambient_level ; No, get ambient light level and set max_CCPR1L | |
| 0 | 583 |
| 582 | 584 rcall isr_battery_gauge ; Add amount of battery consumption to battery_gauge:6 |
| 0 | 585 |
| 582 | 586 ; update uptime |
| 587 banksel uptime+0 | |
| 588 incf uptime+0,F | |
| 589 movlw .0 | |
| 590 addwfc uptime+1,F | |
| 591 addwfc uptime+2,F | |
| 592 addwfc uptime+3,F | |
| 593 | |
| 594 banksel common ; flag1 is in Bank1 | |
| 595 bsf onesecupdate ; A new second has begun | |
| 596 btfsc divemode ; in divemode? | |
| 597 rcall isr_divemode_1sec ; Yes, do some divemode stuff in bank common | |
| 0 | 598 |
| 582 | 599 btfss divemode ; in divemode? |
| 600 rcall isr_update_lastdive_time ; No, update the lastdive timer | |
|
453
b4f28ab23b87
NEW: Show Uptime (Time since last firmware boot) in information menu
heinrichsweikamp
parents:
451
diff
changeset
|
601 |
| 582 | 602 tstfsz secs ; secs == 0 ? |
| 603 return ; No, Done. | |
| 0 | 604 |
| 582 | 605 bsf oneminupdate ; A new minute has begun |
| 0 | 606 |
| 582 | 607 btfss divemode ; In Divemode? |
| 608 rcall check_nofly_desat_time ; No, so increase interval | |
| 0 | 609 |
| 582 | 610 ; Check if a new hour has just begun |
| 611 tstfsz mins ; mins == 0? | |
| 612 bra isr_rtcc2 ; No | |
| 613 bsf onehourupdate ; Yes, set flag | |
| 614 | |
| 0 | 615 isr_rtcc2: |
| 582 | 616 banksel isr_backup ; Back to Bank0 ISR data |
| 617 return ; Done. | |
| 0 | 618 |
| 582 | 619 isr_update_lastdive_time: ; called every second when not in divemode |
| 620 ; update uptime | |
| 621 banksel lastdive_time+0 | |
| 622 incf lastdive_time+0,F | |
| 623 movlw .0 | |
| 624 addwfc lastdive_time+1,F | |
| 625 addwfc lastdive_time+2,F | |
| 626 addwfc lastdive_time+3,F | |
| 627 banksel common | |
| 628 return | |
| 629 | |
| 630 isr_battery_gauge: | |
| 631 banksel isr_backup ; Bank0 ISR data | |
| 632 movlw current_sleepmode ; 100µA/3600 -> nAs (Sleepmode current) | |
| 633 movwf isr1_temp ; Store value (low byte) | |
| 634 clrf isr2_temp ; High byte | |
| 0 | 635 |
| 582 | 636 banksel common ; flag1 is in Bank1 |
| 637 btfss sleepmode ; in Sleepmode? | |
| 638 rcall isr_battery_gauge2 ; No, compute current consumption value into isr1_temp and isr2_temp | |
| 639 | |
| 640 banksel isr_backup ; Bank0 ISR data | |
| 641 movf isr1_temp,W ; 48Bit add of isr1_temp and isr2_temp into battery_gauge:6 | |
| 642 addwf battery_gauge+0,F | |
| 643 movf isr2_temp,W | |
| 644 addwfc battery_gauge+1,F | |
| 645 movlw .0 | |
| 646 addwfc battery_gauge+2,F | |
| 647 addwfc battery_gauge+3,F | |
| 648 addwfc battery_gauge+4,F | |
| 649 addwfc battery_gauge+5,F | |
| 650 return | |
| 651 | |
| 0 | 652 isr_battery_gauge2: |
| 582 | 653 ; set consumption rate in nAs for an one second interval |
| 0 | 654 ; Example: |
| 582 | 655 ; movlw LOW .55556 ; 0,2A/3600*1e9s = nAs |
| 656 ; movwf isr1_temp ; Low byte | |
| 657 ; movlw HIGH .55556 ; 0,2A/3600*1e9s = nAs | |
| 658 ; movwf isr2_temp ; High byte | |
| 0 | 659 |
| 660 ; Current consumption for LED backlight is 47*CCPR1L+272 | |
| 582 | 661 movf CCPR1L,W |
| 662 mullw current_backlight_multi | |
| 663 movlw LOW current_backlight_offset | |
| 664 addwf PRODL,F | |
| 665 movlw HIGH current_backlight_offset | |
| 666 addwfc PRODH,F | |
| 667 movff PRODL,isr1_temp | |
| 668 movff PRODH,isr2_temp ; isr1_temp and isr2_temp hold value for backlight | |
| 0 | 669 |
| 670 ; Add current for CPU and GPU | |
| 671 ; speed_setting=1: ECO (3,1mA -> 861nAs), =2: NORMAL (5,50mA -> 1528nAs) or =3: FASTEST (8,04mA -> 2233nAs) | |
| 582 | 672 banksel isr_backup ; Bank0 ISR data |
| 673 movlw .1 | |
| 674 cpfseq speed_setting | |
| 675 bra isr_battery_gauge3 | |
| 676 movlw LOW current_speed_eco | |
| 677 addwf isr1_temp,F | |
| 678 movlw HIGH current_speed_eco | |
| 679 addwfc isr2_temp,F | |
| 680 bra isr_battery_gauge5 | |
| 0 | 681 isr_battery_gauge3: |
| 582 | 682 movlw .2 |
| 683 cpfseq speed_setting | |
| 684 bra isr_battery_gauge4 | |
| 685 movlw LOW current_speed_normal | |
| 686 addwf isr1_temp,F | |
| 687 movlw HIGH current_speed_normal | |
| 688 addwfc isr2_temp,F | |
| 689 bra isr_battery_gauge5 | |
| 0 | 690 isr_battery_gauge4: |
| 582 | 691 movlw LOW current_speed_fastest |
| 692 addwf isr1_temp,F | |
| 693 movlw HIGH current_speed_fastest | |
| 694 addwfc isr2_temp,F | |
| 0 | 695 isr_battery_gauge5: |
| 582 | 696 ; Add current if IR receiver is on |
| 697 btfss ir_power ; IR enabled? | |
| 698 bra isr_battery_gauge6 ; no | |
| 699 movlw LOW current_ir_receiver | |
| 700 addwf isr1_temp,F | |
| 701 movlw HIGH current_ir_receiver | |
| 702 addwfc isr2_temp,F | |
| 0 | 703 isr_battery_gauge6: |
| 582 | 704 ; Add current for compass/accelerometer |
| 705 btfss compass_enabled ; compass active? | |
| 706 bra isr_battery_gauge7 ; no | |
| 707 movlw LOW current_compass | |
| 708 addwf isr1_temp,F | |
| 709 movlw HIGH current_compass | |
| 710 addwfc isr2_temp,F | |
| 0 | 711 isr_battery_gauge7: |
| 582 | 712 return |
| 0 | 713 |
| 714 isr_divemode_1sec: | |
| 582 | 715 incf samplesecs,F ; "samplingrate" diving seconds done |
| 716 decf samplesecs_value,W ; holds "samplingrate" value (minus 1 into WREG) | |
| 717 cpfsgt samplesecs ; Done? | |
| 718 bra isr_divemode_1sec2 ; no | |
| 0 | 719 |
| 582 | 720 clrf samplesecs ; clear counter... |
| 721 bsf store_sample ; ...and set bit for profile storage | |
| 0 | 722 isr_divemode_1sec2: |
| 582 | 723 ; Increase re-setable average depth divetime counter |
| 724 infsnz average_divesecs+0,F ; increase stopwatch registers | |
| 725 incf average_divesecs+1,F ; increase stopwatch registers | |
| 726 ; Increase total divetime (Regardless of start_dive_threshold) | |
| 727 infsnz total_divetime_seconds+0,F | |
| 728 incf total_divetime_seconds+1,F ; Total dive time (Regardless of start_dive_threshold) | |
| 729 | |
| 730 btfss divemode2 ; displayed divetime is running? | |
| 731 return ; No (e.g. too shallow) | |
| 0 | 732 |
| 582 | 733 ; increase divetime registers (Displayed dive time) |
| 734 incf divesecs,F | |
| 735 movlw d'59' | |
| 736 cpfsgt divesecs | |
| 737 bra isr_divemode_1sec2a | |
| 738 | |
| 739 clrf divesecs | |
| 740 bsf realdive ; this bit is always set (again) if the dive is longer then one minute | |
| 741 infsnz divemins+0,F | |
| 742 incf divemins+1,F ; increase divemins | |
| 0 | 743 |
| 582 | 744 isr_divemode_1sec2a: |
| 745 btfss FLAG_apnoe_mode ; Are we in Apnoe mode? | |
| 746 return ; No | |
| 747 | |
| 748 incf apnoe_secs,F ; increase descent registers | |
| 749 movlw d'59' | |
| 750 cpfsgt apnoe_secs ; full minute? | |
| 751 return ; No | |
| 752 clrf apnoe_secs | |
| 753 incf apnoe_mins,F ; increase descent mins | |
| 754 return | |
| 0 | 755 |
| 756 ;============================================================================= | |
| 582 | 757 ; BCD to Binary conversion. |
| 0 | 758 ; Input: isr1_temp = Value in BCD |
| 759 ; Output WREG = value in binary. | |
| 760 isr_rtcc_convert: | |
| 582 | 761 swapf isr1_temp, W |
| 762 andlw 0x0F ; W = tens | |
| 763 rlncf WREG, W ; W = 2*tens | |
| 764 subwf isr1_temp, F ; 16*tens + ones - 2*tens | |
| 765 subwf isr1_temp, F ; 14*tens + ones - 2*tens | |
| 766 subwf isr1_temp, W ; 12*tens + ones - 2*tens | |
| 767 return | |
| 0 | 768 |
| 769 ;============================================================================= | |
| 770 | |
| 582 | 771 isr_switch_right: |
| 772 bcf INTCON,INT0IE ; Disable INT0 | |
| 773 banksel common ; flag1 is in Bank1 | |
| 774 btfss flip_screen ; 180° flipped? | |
| 775 bsf switch_right ; Set flag | |
| 776 btfsc flip_screen ; 180° flipped? | |
| 777 bsf switch_left ; Set flag | |
| 778 bra isr_switch_common ; Continue... | |
| 0 | 779 |
| 582 | 780 isr_switch_left: |
| 781 bcf INTCON3,INT1IE ; Disable INT1 | |
| 782 banksel common ; flag1 is in Bank1 | |
| 783 btfss flip_screen ; 180° flipped? | |
| 784 bsf switch_left ; Set flag | |
| 785 btfsc flip_screen ; 180° flipped? | |
| 786 bsf switch_right ; Set flag | |
| 0 | 787 isr_switch_common: |
| 582 | 788 ; load timer1 for first press |
| 789 clrf TMR1L | |
| 790 movlw TMR1H_VALUE_FIRST ; in steps of 7,8125ms | |
| 791 movwf TMR1H | |
| 792 bsf T1CON,TMR1ON ; Start Timer 1 | |
| 793 banksel isr_backup ; Select Bank0 for ISR data. | |
| 794 bcf INTCON3,INT1IF ; Clear flag | |
| 795 bcf INTCON,INT0IF ; Clear flag | |
| 796 return | |
| 0 | 797 |
| 798 timer1int: | |
| 582 | 799 bcf PIR1,TMR1IF ; Clear flag |
| 800 banksel common ; flag1 is in Bank1 | |
| 801 bcf INTCON,INT0IF ; Clear flag | |
| 802 bcf INTCON3,INT1IF ; Clear flag | |
| 451 | 803 ; digital |
| 582 | 804 btfss switch_left1 ; Left button hold-down? |
| 805 bra timer1int_left ; Yes | |
| 806 btfss switch_right2 ; Right button hold-down? | |
| 807 bra timer1int_right ; Yes | |
| 808 | |
| 451 | 809 ; Analog |
| 582 | 810 btfsc analog_sw2_pressed ; Left button hold-down? |
| 811 bra timer1int_left ; Yes | |
| 812 btfsc analog_sw1_pressed ; Right button hold-down? | |
| 813 bra timer1int_right ; Yes | |
| 814 | |
| 815 ; No button hold-down, stop Timer 1 | |
| 816 bcf T1CON,TMR1ON ; Stop Timer 1 | |
| 817 bsf INTCON,INT0IE ; Enable INT0 | |
| 818 bsf INTCON3,INT1IE ; Enable INT1 | |
| 451 | 819 return |
| 0 | 820 |
| 821 timer1int_left: | |
| 582 | 822 btfss flip_screen ; 180° flipped? |
| 823 bsf switch_left ; (Re-)Set flag | |
| 824 btfsc flip_screen ; 180° flipped? | |
| 825 bsf switch_right ; (Re-)Set flag | |
| 826 bra timer1int_common ; Continue | |
| 0 | 827 timer1int_right: |
| 582 | 828 btfss flip_screen ; 180° flipped? |
| 829 bsf switch_right ; Set flag | |
| 830 btfsc flip_screen ; 180° flipped? | |
| 831 bsf switch_left ; Set flag | |
| 0 | 832 timer1int_common: |
| 582 | 833 ; load timer1 for next press |
| 834 clrf TMR1L | |
| 835 movlw TMR1H_VALUE_CONT ; Surface mode | |
| 836 btfsc divemode | |
| 837 movlw TMR1H_VALUE_CONT_DIVE ; Dive mode | |
| 838 movwf TMR1H | |
| 839 return ; Return from timer1int with timer1 kept running | |
| 0 | 840 |
| 841 ;============================================================================= | |
| 842 | |
| 582 | 843 check_nofly_desat_time: ; called every minute when not in divemode |
| 844 banksel int_O_desaturation_time | |
| 845 movf int_O_desaturation_time+0,W ; Is Desat null ? | |
| 846 iorwf int_O_desaturation_time+1,W | |
| 847 bz check_nofly_desat_time_1 ; yes... | |
| 0 | 848 |
| 582 | 849 ; int_O_desaturation_time is only computed while in start, surface mode, menue_tree or ghostwriter. |
| 850 ; So the ISR may clock surface_interval past the actual surface interval time. But TFT_surface_lastdive | |
| 851 ; will check int_O_desaturation_time and in case int_O_desaturation_time is zero it will not show | |
| 852 ; surface_interval but lastdive_time instead. So this glitch remains invisible. | |
| 0 | 853 |
| 147 | 854 ; Increase surface interval timer |
| 582 | 855 banksel common |
| 856 infsnz surface_interval+0,F | |
| 857 incf surface_interval+1,F | |
| 858 return ; Done | |
| 0 | 859 |
| 582 | 860 check_nofly_desat_time_1: |
| 861 banksel common | |
| 862 clrf surface_interval+0 | |
| 863 clrf surface_interval+1 ; Clear surface interval timer | |
| 864 return ; Done. | |
| 0 | 865 |
| 866 ;============================================================================= | |
| 867 | |
| 868 isr_restore_clock: | |
| 582 | 869 banksel isr_backup |
| 870 movlw d'1' | |
| 871 cpfseq speed_setting | |
| 872 bra isr_restore_speed2 | |
| 873 ; Reset to eco | |
| 874 movlw b'00000000' | |
| 875 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 876 movlw b'00110010' | |
| 877 movwf OSCCON ; 1MHz INTOSC | |
| 878 movlw T2CON_ECO | |
| 879 movwf T2CON | |
| 880 bra isr_restore_exit | |
| 0 | 881 isr_restore_speed2: |
| 582 | 882 movlw d'2' |
| 883 cpfseq speed_setting | |
| 884 bra isr_restore_speed3 | |
| 0 | 885 ; Reset to normal |
| 582 | 886 movlw b'01110010' |
| 887 movwf OSCCON ; 16MHz INTOSC | |
| 888 movlw b'00000000' | |
| 889 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 890 movlw T2CON_NORMAL | |
| 891 movwf T2CON | |
| 892 bra isr_restore_exit | |
| 0 | 893 |
| 894 isr_restore_speed3: | |
| 895 ; Reset to fastest | |
| 582 | 896 movlw b'01110010' ; 16MHz INTOSC |
| 897 movwf OSCCON | |
| 898 movlw b'01000000' | |
| 899 movwf OSCTUNE ; 4x PLL Enable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
| 900 movlw T2CON_FASTEST | |
| 901 movwf T2CON | |
| 902 ;bra isr_restore_exit | |
| 903 | |
| 0 | 904 isr_restore_exit: |
| 582 | 905 btfss OSCCON,HFIOFS |
| 906 bra isr_restore_exit ; loop until PLL is stable | |
| 907 return | |
| 0 | 908 |
|
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d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
909 |
| 582 | 910 restore_flash: ; Restore first flash page from eeprom |
| 911 banksel common | |
| 912 ; Start address in internal flash | |
| 913 movlw 0x00 | |
| 914 movwf TBLPTRL | |
| 915 movwf TBLPTRH | |
| 916 movwf TBLPTRU | |
|
410
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
917 |
| 582 | 918 movlw b'10010100' ; Setup erase |
| 919 rcall Write ; Write! | |
|
410
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
920 |
| 582 | 921 movlw .128 |
| 922 movwf lo ; Byte counter | |
| 923 clrf EEADR | |
| 924 movlw .3 | |
| 925 movwf EEADRH ; Setup backup address | |
|
410
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
926 |
| 582 | 927 TBLRD*- ; Dummy read to be in 128 byte block |
|
410
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
928 restore_flash_loop: |
| 582 | 929 call read_eeprom |
| 930 incf EEADR,F | |
| 931 movff EEDATA,TABLAT ; put 1 byte | |
| 932 tblwt+* ; Table Write with Pre-Increment | |
| 933 decfsz lo,F ; 128byte done? | |
| 934 bra restore_flash_loop ; No | |
|
410
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
935 |
| 582 | 936 movlw b'10000100' ; Setup writes |
| 937 rcall Write ; Write! | |
|
410
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
938 |
| 582 | 939 reset ; Done, reset CPU |
|
410
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
940 |
|
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
941 Write: |
| 582 | 942 movwf EECON1 ; Type of memory to write in |
| 943 movlw 0x55 | |
| 944 movwf EECON2 | |
| 945 movlw 0xAA | |
| 946 movwf EECON2 | |
| 947 bsf EECON1,WR ; Write | |
| 948 nop | |
| 949 nop | |
| 950 return | |
|
410
d3087a8ed7e1
BUGFIX: Fix rare issue after battery change (OSTC3 did not start properly)
heinrichsweikamp
parents:
378
diff
changeset
|
951 |
| 582 | 952 END |