Mercurial > public > hwos_code
annotate src/isr.asm @ 431:9500b2d3e32b
hunting a bug in the logbook...
author | heinrichsweikamp |
---|---|
date | Tue, 21 Jun 2016 17:20:44 +0200 |
parents | d3087a8ed7e1 |
children | aadfe9f2edaf |
rev | line source |
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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 | |
275 | 12 #include "hwos.inc" |
0 | 13 #include "shared_definitions.h" ; Mailbox from/to p2_deco.c |
14 #include "ms5541.inc" | |
15 #include "adc_lightsensor.inc" | |
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16 #include "eeprom_rs232.inc" |
0 | 17 |
18 ;============================================================================= | |
19 | |
20 extern start | |
21 | |
22 isr_high CODE 0x0008 ;High Priority Interrups | |
23 bra HighInt | |
24 nop | |
25 nop | |
26 nop | |
27 nop | |
28 nop | |
29 nop | |
30 bra HighInt | |
31 | |
32 isr_low CODE 0x00018 ;Low Priority Interrups | |
33 ; *** low priority interrupts not used | |
34 retfie FAST ; Restores BSR, STATUS and WREG | |
35 | |
36 HighInt: | |
37 movff PRODL,isr_prod+0 | |
38 movff PRODH,isr_prod+1 | |
39 | |
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 | |
47 | |
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48 ; IR/S8-Link |
113 | 49 btfsc PIR3,RC2IF ; UART2 |
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50 rcall isr_uart2 ; IR/S8-Link |
0 | 51 btfsc PIR2,TMR3IF ; Timer 3 |
52 rcall isr_timer3 ; IR-Link Timeout | |
113 | 53 |
54 ; Pressure sensor and others | |
55 btfsc PIR5,TMR7IF ; Timer 7 | |
56 rcall isr_tmr7 ; Every 62,5ms | |
57 | |
0 | 58 ; RTCC |
59 btfsc PIR3,RTCCIF ; Real-time-clock interrupt | |
60 rcall isr_rtcc ; May return in bank common! | |
61 | |
62 movff isr_prod+1,PRODH | |
63 movff isr_prod+0,PRODL | |
64 retfie FAST ; Restores BSR, STATUS and WREG | |
65 | |
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66 isr_set_speed_to_normal: |
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67 ; Set Speed to normal |
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68 movlw b'01110010' |
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69 movwf OSCCON ; 16MHz INTOSC |
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70 movlw b'00000000' |
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71 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) |
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72 movlw b'00001101' ; 1:2 Postscaler, 1:4 Prescaler, Timer 2 start -> 1960Hz (no-flicker) |
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73 movwf T2CON |
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74 btfss OSCCON,HFIOFS |
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75 bra $-2 ; Wait until clock is stable |
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76 return |
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77 |
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78 isr_dimm_tft: ; Adjust until max_CCPR1L=CCPR1L ! |
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79 banksel common |
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80 btfsc tft_is_dimming ; Ignore while dimming |
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81 return |
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82 banksel isr_backup |
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83 movf max_CCPR1L,W |
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84 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L? |
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85 bra isr_dimm_tft2 ; No, dimm up |
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86 ; dimm down |
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87 decf CCPR1L,F ; -1 |
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88 return |
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89 isr_dimm_tft2: |
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90 movf max_CCPR1L,W |
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91 sublw ambient_light_min_eco |
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92 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L-ambient_light_min_eco? |
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93 bra isr_dimm_tft3 ; No, dimm up slow |
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94 ; dimm up faster |
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95 movlw .10 |
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96 addwf CCPR1L,F |
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97 isr_dimm_tft3: |
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98 incf CCPR1L,F ; +1 |
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99 return |
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100 nop |
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101 nop ; block flash here |
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102 |
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103 isr_restore CODE 0x00080 ; Restore first flash page from EEPROM |
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104 restore_flash_0x00080: |
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105 goto restore_flash |
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106 |
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107 |
0 | 108 ;============================================================================= |
109 | |
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110 isr_uart2: ; IR/S8-Link |
0 | 111 banksel RCREG2 |
112 movf RCREG2,W | |
113 bcf RCSTA2,CREN ; Clear receiver status | |
114 bsf RCSTA2,CREN | |
115 banksel isr_backup | |
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116 incf ir_s8_counter,F ; Increase counter |
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117 movff ir_s8_counter,isr1_temp ; Copy |
0 | 118 dcfsnz isr1_temp,F |
204 | 119 movwf ir_s8_buffer+.0 |
0 | 120 dcfsnz isr1_temp,F |
204 | 121 movwf ir_s8_buffer+.1 |
0 | 122 dcfsnz isr1_temp,F |
204 | 123 movwf ir_s8_buffer+.2 |
0 | 124 dcfsnz isr1_temp,F |
204 | 125 movwf ir_s8_buffer+.3 |
0 | 126 dcfsnz isr1_temp,F |
204 | 127 movwf ir_s8_buffer+.4 |
0 | 128 dcfsnz isr1_temp,F |
204 | 129 movwf ir_s8_buffer+.5 |
0 | 130 dcfsnz isr1_temp,F |
204 | 131 movwf ir_s8_buffer+.6 |
0 | 132 dcfsnz isr1_temp,F |
204 | 133 movwf ir_s8_buffer+.7 |
0 | 134 dcfsnz isr1_temp,F |
204 | 135 movwf ir_s8_buffer+.8 |
0 | 136 dcfsnz isr1_temp,F |
204 | 137 movwf ir_s8_buffer+.9 |
0 | 138 dcfsnz isr1_temp,F |
204 | 139 movwf ir_s8_buffer+.10 |
0 | 140 dcfsnz isr1_temp,F |
204 | 141 movwf ir_s8_buffer+.11 |
0 | 142 dcfsnz isr1_temp,F |
204 | 143 movwf ir_s8_buffer+.12 |
0 | 144 dcfsnz isr1_temp,F |
204 | 145 movwf ir_s8_buffer+.13 |
0 | 146 dcfsnz isr1_temp,F |
204 | 147 movwf ir_s8_buffer+.14 |
0 | 148 dcfsnz isr1_temp,F |
204 | 149 movwf ir_s8_buffer+.15 |
113 | 150 dcfsnz isr1_temp,F |
204 | 151 movwf ir_s8_buffer+.16 |
113 | 152 dcfsnz isr1_temp,F |
204 | 153 movwf ir_s8_buffer+.17 |
113 | 154 |
0 | 155 clrf TMR3L ; Preload timer |
156 movlw .253 | |
157 movwf TMR3H | |
158 bsf T3CON,TMR3ON ; (Re)Start Timeout counter | |
159 return | |
160 | |
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161 isr_timer3: ; IR/S8-Link Timeout |
0 | 162 bcf T3CON,TMR3ON ; Stop Timer3 |
163 banksel isr_backup ; Select Bank0 for ISR data. | |
164 movlw .15 | |
187
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165 cpfseq ir_s8_counter ; Got exact 15bytes? |
0 | 166 bra isr_timer3_1 ; No, test for 16bytes |
113 | 167 bra isr_timer3_ir ; Got 15 bytes, compute local checksum |
0 | 168 isr_timer3_1: |
169 movlw .16 | |
187
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170 cpfseq ir_s8_counter ; Got exact 16bytes? |
113 | 171 bra isr_timer3_2 ; No, test for 17bytes |
187
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172 tstfsz ir_s8_buffer+.15 ; Last byte=0x00 |
0 | 173 bra isr_timer3_exit ; No, exit |
113 | 174 bra isr_timer3_ir ; Got 16 bytes, compute local checksum |
175 isr_timer3_2: | |
176 movlw .17 | |
187
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177 cpfseq ir_s8_counter ; Got exact 17bytes? |
113 | 178 bra isr_timer3_exit ; No, exit |
179 bra isr_timer3_s8 ; S8 data | |
0 | 180 |
113 | 181 isr_timer3_ir: ; IR input |
187
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182 movff ir_s8_buffer+.0,PRODL |
0 | 183 clrf PRODH |
187
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184 movf ir_s8_buffer+.1,W |
0 | 185 rcall isr_timer3_checksum |
187
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186 movf ir_s8_buffer+.2,W |
0 | 187 rcall isr_timer3_checksum |
187
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188 movf ir_s8_buffer+.3,W |
0 | 189 rcall isr_timer3_checksum |
187
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190 movf ir_s8_buffer+.4,W |
0 | 191 rcall isr_timer3_checksum |
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192 movf ir_s8_buffer+.5,W |
0 | 193 rcall isr_timer3_checksum |
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194 movf ir_s8_buffer+.6,W |
0 | 195 rcall isr_timer3_checksum |
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196 movf ir_s8_buffer+.7,W |
0 | 197 rcall isr_timer3_checksum |
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198 movf ir_s8_buffer+.8,W |
0 | 199 rcall isr_timer3_checksum |
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200 movf ir_s8_buffer+.9,W |
0 | 201 rcall isr_timer3_checksum |
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202 movf ir_s8_buffer+.10,W |
0 | 203 rcall isr_timer3_checksum |
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204 movf ir_s8_buffer+.11,W |
0 | 205 rcall isr_timer3_checksum |
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206 movf ir_s8_buffer+.12,W |
0 | 207 rcall isr_timer3_checksum |
208 | |
209 ; Compare checksum | |
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210 movf ir_s8_buffer+.13,W |
0 | 211 cpfseq PRODL ; Checksum ok? |
212 bra isr_timer3_exit ; No, exit | |
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213 movf ir_s8_buffer+.14,W |
0 | 214 cpfseq PRODH ; Checksum ok? |
215 bra isr_timer3_exit ; No, exit | |
216 | |
217 ; Checksum OK, copy results | |
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218 movff ir_s8_buffer+.1,hud_status_byte |
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219 movff ir_s8_buffer+.2,o2_mv_sensor1+0 |
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220 movff ir_s8_buffer+.3,o2_mv_sensor1+1 |
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221 movff ir_s8_buffer+.4,o2_mv_sensor2+0 |
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222 movff ir_s8_buffer+.5,o2_mv_sensor2+1 |
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223 movff ir_s8_buffer+.6,o2_mv_sensor3+0 |
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224 movff ir_s8_buffer+.7,o2_mv_sensor3+1 |
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225 movff ir_s8_buffer+.8,o2_ppo2_sensor1 |
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226 movff ir_s8_buffer+.9,o2_ppo2_sensor2 |
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227 movff ir_s8_buffer+.10,o2_ppo2_sensor3 |
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228 movff ir_s8_buffer+.11,hud_battery_mv+0 |
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229 movff ir_s8_buffer+.12,hud_battery_mv+1 |
0 | 230 |
231 movlw ir_timeout_value ; multiples of 62,5ms | |
187
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232 movwf ir_S8_timeout ; Reload timeout |
227
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233 |
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234 banksel hud_status_byte |
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235 bsf hud_connection_ok ; Set manually for hwHUD w/o the HUD module... |
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236 banksel isr_backup ; Select Bank0 for ISR data. |
0 | 237 |
238 isr_timer3_exit: | |
187
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239 clrf ir_s8_counter ; Clear pointer |
0 | 240 bcf PIR2,TMR3IF ; Clear flag |
241 return | |
242 | |
243 isr_timer3_checksum: | |
244 addwf PRODL,F | |
245 movlw .0 | |
246 addwfc PRODH,F | |
247 return | |
248 | |
187
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249 isr_timer3_s8: ; S8 input |
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250 movff ir_s8_buffer+.0,PRODL |
113 | 251 clrf PRODH |
187
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252 movf ir_s8_buffer+.1,W |
113 | 253 rcall isr_timer3_checksum |
187
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254 movf ir_s8_buffer+.2,W |
113 | 255 rcall isr_timer3_checksum |
187
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256 movf ir_s8_buffer+.3,W |
113 | 257 rcall isr_timer3_checksum |
187
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258 movf ir_s8_buffer+.4,W |
113 | 259 rcall isr_timer3_checksum |
187
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260 movf ir_s8_buffer+.5,W |
113 | 261 rcall isr_timer3_checksum |
187
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262 movf ir_s8_buffer+.6,W |
113 | 263 rcall isr_timer3_checksum |
187
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264 movf ir_s8_buffer+.7,W |
113 | 265 rcall isr_timer3_checksum |
187
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266 movf ir_s8_buffer+.8,W |
113 | 267 rcall isr_timer3_checksum |
187
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268 movf ir_s8_buffer+.9,W |
113 | 269 rcall isr_timer3_checksum |
187
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270 movf ir_s8_buffer+.10,W |
113 | 271 rcall isr_timer3_checksum |
187
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272 movf ir_s8_buffer+.11,W |
113 | 273 rcall isr_timer3_checksum |
187
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274 movf ir_s8_buffer+.12,W |
113 | 275 rcall isr_timer3_checksum |
187
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276 movf ir_s8_buffer+.13,W |
113 | 277 rcall isr_timer3_checksum |
187
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278 movf ir_s8_buffer+.14,W |
113 | 279 rcall isr_timer3_checksum |
280 | |
281 ; Compare checksum | |
187
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282 movf ir_s8_buffer+.15,W |
113 | 283 cpfseq PRODL ; Checksum ok? |
284 bra isr_timer3_exit ; No, exit | |
187
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285 movf ir_s8_buffer+.16,W |
113 | 286 cpfseq PRODH ; Checksum ok? |
287 bra isr_timer3_exit ; No, exit | |
288 | |
289 ; Checksum OK, copy results | |
187
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290 movff ir_s8_buffer+.3,hud_status_byte |
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291 movff ir_s8_buffer+.13,hud_battery_mv+0 |
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292 movff ir_s8_buffer+.14,hud_battery_mv+1 |
113 | 293 |
294 banksel common | |
271 | 295 btfsc new_s8_data_available ; =1: Old data already processed? |
268
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296 bra isr_timer3_skip ; No, skip copying new results |
113 | 297 |
268
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298 movff ir_s8_buffer+.6,s8_rawdata_sensor1+2 |
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299 movff ir_s8_buffer+.5,s8_rawdata_sensor1+1 |
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300 movff ir_s8_buffer+.4,s8_rawdata_sensor1+0 |
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301 movff ir_s8_buffer+.9,s8_rawdata_sensor2+2 |
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302 movff ir_s8_buffer+.8,s8_rawdata_sensor2+1 |
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303 movff ir_s8_buffer+.7,s8_rawdata_sensor2+0 |
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304 movff ir_s8_buffer+.12,s8_rawdata_sensor3+2 |
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305 movff ir_s8_buffer+.11,s8_rawdata_sensor3+1 |
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306 movff ir_s8_buffer+.10,s8_rawdata_sensor3+0 |
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307 banksel common |
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308 bsf new_s8_data_available ; set flag |
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309 |
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310 isr_timer3_skip: |
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311 banksel ir_S8_timeout |
113 | 312 movlw ir_timeout_value ; multiples of 62,5ms |
268
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313 movwf ir_S8_timeout ; Reload timeout |
113 | 314 bra isr_timer3_exit ; Exit |
315 | |
316 | |
0 | 317 ;============================================================================= |
318 | |
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. | |
322 movlw .248 | |
323 movwf TMR7H ; -> Rollover after 2048 cycles -> 62,5ms | |
324 | |
325 banksel isr_backup | |
326 movf max_CCPR1L,W ; Dimm value | |
327 cpfseq CCPR1L ; = current PWM value? | |
328 rcall isr_dimm_tft ; No, adjust until max_CCPR1L=CCPR1L ! | |
329 | |
330 banksel isr_backup | |
187
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331 decfsz ir_S8_timeout,F ; IR Data still valid? |
0 | 332 bra isr_tmr7_2 ; Yes, continue |
333 ; timeout, clear IR-Data | |
334 | |
335 movlw ir_timeout_value ; multiples of 62,5ms | |
187
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336 movwf ir_S8_timeout ; Reload timeout |
0 | 337 |
338 banksel common | |
236 | 339 btfss analog_o2_input |
113 | 340 bra isr_tmr7_1a ; Always with normal ostc3 hardware |
341 btfss s8_digital | |
342 bra isr_tmr7_2 ; only when digital | |
343 isr_tmr7_1a: | |
0 | 344 clrf o2_mv_sensor1+0 |
345 clrf o2_mv_sensor1+1 | |
346 clrf o2_mv_sensor2+0 | |
347 clrf o2_mv_sensor2+1 | |
348 clrf o2_mv_sensor3+0 | |
349 clrf o2_mv_sensor3+1 | |
378 | 350 banksel hud_battery_mv |
0 | 351 clrf hud_battery_mv+0 |
352 clrf hud_battery_mv+1 | |
378 | 353 banksel hud_status_byte |
0 | 354 clrf hud_status_byte |
355 clrf o2_ppo2_sensor1 | |
356 clrf o2_ppo2_sensor2 | |
357 clrf o2_ppo2_sensor3 | |
358 | |
359 isr_tmr7_2: | |
360 banksel common | |
361 btfss no_sensor_int ; No sensor interrupt (because it's addressed during sleep) | |
362 bra isr_sensor_state2 ; No, continue | |
363 banksel isr_backup ; Back to Bank0 ISR data | |
364 return | |
365 | |
366 isr_sensor_state2: | |
367 banksel common | |
368 movff sensor_state_counter,WREG | |
369 btfss WREG,0 ; every 1/4 second | |
370 bsf quarter_second_update ; Set flag | |
319 | 371 banksel isr_backup ; Back to Bank0 ISR data |
0 | 372 movlw d'2' |
373 cpfseq speed_setting ; Set to normal in case it's not already in normal speed mode | |
374 rcall isr_set_speed_to_normal | |
319 | 375 |
0 | 376 incf sensor_state_counter,F ; counts to eight for state maschine |
377 | |
378 ; State 1: Clear flags and average registers, get temperature (51us) and start pressure integration (73,5us) | |
379 ; State 2: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
380 ; State 3: Get temperature (51us) and start pressure integration (73,5us) | |
381 ; State 4: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
382 ; State 5: Get temperature (51us) and start pressure integration (73,5us) | |
383 ; State 6: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
384 ; State 7: Get temperature (51us) and start pressure integration (73,5us) | |
385 ; 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 | |
386 | |
387 movff sensor_state_counter,WREG ; WREG used as temp here... | |
388 dcfsnz WREG,F | |
389 bra sensor_int_state1_plus_restart ; Do State 1 | |
390 dcfsnz WREG,F | |
391 bra sensor_int_state2 ; Do State 2 | |
392 dcfsnz WREG,F | |
393 bra sensor_int_state1 ; Do State 3 | |
394 dcfsnz WREG,F | |
395 bra sensor_int_state2 ; Do State 4 | |
396 dcfsnz WREG,F | |
397 bra sensor_int_state1 ; Do State 5 | |
398 dcfsnz WREG,F | |
399 bra sensor_int_state2 ; Do State 6 | |
400 dcfsnz WREG,F | |
401 bra sensor_int_state1 ; Do State 7 | |
402 ; bra sensor_int2_plus_average ; Do State 8 | |
403 ;sensor_int2_plus_average: | |
404 ; First, do state2: | |
405 call get_pressure_value ; State2: Get pressure (51us) | |
406 call get_temperature_start ; and start temperature integration (73,5us) | |
407 call calculate_compensation ; calculate temperature compensated pressure (27us) | |
408 ; Build average | |
409 bcf STATUS,C ; clear carry bit. | |
410 rrcf amb_pressure_avg+1 ; amb_pressure sum / 2 | |
411 rrcf amb_pressure_avg+0 | |
412 bcf STATUS,C ; clear carry bit, twice. | |
413 rrcf amb_pressure_avg+1 ; amb_pressure sum / 4 | |
414 rrcf amb_pressure_avg+0 | |
415 | |
416 movff amb_pressure_avg+1,amb_pressure+1 ; copy into actual register | |
417 movff amb_pressure_avg+0,amb_pressure+0 | |
418 | |
419 bcf STATUS,C | |
420 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
421 bsf STATUS,C | |
422 rrcf temperature_avg+1 ; Signed temperature /2 | |
423 rrcf temperature_avg+0 | |
424 bcf STATUS,C | |
425 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
426 bsf STATUS,C | |
427 rrcf temperature_avg+1 ; Signed temperature /4 | |
428 rrcf temperature_avg+0 | |
429 | |
430 movff temperature_avg+1,temperature+1 ; copy into actual register | |
431 movff temperature_avg+0,temperature+0 | |
432 | |
433 banksel common ; flag1 is in Bank1 | |
434 bcf temp_changed ; Clear flag for temperature update | |
435 bcf pressure_refresh ; Clear flag for pressure update | |
436 banksel isr_backup ; Back to Bank0 ISR data | |
437 | |
438 ; Temp changed? | |
439 movf temperature+0,W | |
440 cpfseq last_temperature+0 | |
441 bra isr_sensor_state2_2 ; Yes | |
442 movf temperature+1,W | |
443 cpfseq last_temperature+1 | |
444 bra isr_sensor_state2_2 ; Yes | |
445 | |
446 bra isr_sensor_state2_3 ; no change | |
447 | |
448 isr_sensor_state2_2: | |
449 banksel common ; flag1 is in Bank1 | |
450 bsf temp_changed ; Yes | |
451 banksel isr_backup ; Back to Bank0 ISR data | |
452 isr_sensor_state2_3: | |
453 movff temperature+0,last_temperature+0 ; Copy for compare | |
454 movff temperature+1,last_temperature+1 | |
455 | |
456 movf amb_pressure+0,W | |
457 cpfseq last_pressure+0 | |
458 bra isr_sensor_state2_4 ; Yes | |
459 movf amb_pressure+1,W | |
460 cpfseq last_pressure+1 | |
461 bra isr_sensor_state2_4 ; Yes | |
462 | |
463 bra isr_sensor_state2_5 ; No change | |
464 isr_sensor_state2_4: | |
465 banksel common ; flag1 is in Bank1 | |
466 bsf pressure_refresh ; Yes | |
467 banksel isr_backup ; Back to Bank0 ISR data | |
468 isr_sensor_state2_5: | |
469 movff amb_pressure+0,last_pressure+0 ; Copy for compare | |
470 movff amb_pressure+1,last_pressure+1 | |
471 | |
472 clrf sensor_state_counter ; Then reset State counter | |
176 | 473 banksel common ; flag2 is in Bank1 |
0 | 474 btfss simulatormode_active ; are we in simulator mode? |
475 bra comp_air_pressure ; no | |
176 | 476 ; Always set pressure_refresh flag in simulator mode |
477 bsf pressure_refresh ; Yes | |
478 banksel isr_backup ; Back to Bank0 ISR data | |
0 | 479 movlw LOW d'1000' ; yes, so simulate 1000mbar surface pressure |
480 movwf last_surfpressure+0 | |
481 movlw HIGH d'1000' | |
482 movwf last_surfpressure+1 | |
483 | |
484 comp_air_pressure: | |
176 | 485 banksel isr_backup ; Back to Bank0 ISR data |
0 | 486 movf last_surfpressure+0,W ; compensate airpressure |
487 subwf amb_pressure+0,W | |
488 movwf rel_pressure+0 ; rel_pressure stores depth! | |
489 | |
490 movf last_surfpressure+1,W | |
491 subwfb amb_pressure+1,W | |
492 movwf rel_pressure+1 | |
493 btfss STATUS,N ; result is below zero? | |
494 bra sensor_int_state_exit | |
495 clrf rel_pressure+0 ; Yes, do not display negative depths | |
496 clrf rel_pressure+1 ; e.g. when surface air pressure dropped during the dive | |
497 bra sensor_int_state_exit | |
498 | |
499 sensor_int_state1_plus_restart: | |
500 clrf amb_pressure_avg+0 ; pressure average registers | |
501 clrf amb_pressure_avg+1 | |
502 clrf temperature_avg+0 | |
503 clrf temperature_avg+1 | |
504 | |
505 sensor_int_state1: | |
506 call get_temperature_value ; State 1: Get temperature | |
507 call get_pressure_start ; and start pressure integration. | |
508 bra sensor_int_state_exit | |
509 | |
510 sensor_int_state2: | |
511 call get_pressure_value ; State2: Get pressure (51us) | |
512 call get_temperature_start ; and start temperature integration (73,5us) | |
513 call calculate_compensation ; calculate temperature compensated pressure (233us) | |
514 ; bra sensor_int_state_exit | |
515 sensor_int_state_exit: | |
516 rcall isr_restore_clock ; Restore clock | |
517 return | |
518 ;============================================================================= | |
519 | |
520 | |
521 | |
522 isr_rtcc: ; each second | |
523 bcf PIR3,RTCCIF ; clear flag | |
524 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
525 bsf RTCCFG,RTCPTR1 | |
526 bsf RTCCFG,RTCPTR0 ; year | |
527 movff RTCVALL,year ; format is BCD! | |
528 movff RTCVALH,day ; dummy read | |
529 movff RTCVALL,day ; format is BCD! | |
530 movff RTCVALH,month ; format is BCD! | |
531 movff RTCVALL,hours ; format is BCD! | |
532 movff RTCVALH,secs ; format is BCD! | |
533 movff RTCVALL,secs ; format is BCD! | |
534 movff RTCVALH,mins ; format is BCD! | |
535 banksel isr_backup ; Back to Bank0 ISR data | |
536 | |
537 ; Convert BCD to DEC and set registers | |
538 movff mins, isr1_temp | |
539 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
540 movff WREG,mins | |
541 movff secs, isr1_temp | |
542 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
543 movff WREG,secs | |
544 movff hours, isr1_temp | |
545 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
546 movff WREG,hours | |
547 movff month, isr1_temp | |
548 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
549 movff WREG,month | |
550 movff day, isr1_temp | |
551 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
552 movff WREG,day | |
553 movff year, isr1_temp | |
554 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
555 movff WREG,year | |
556 | |
557 ; Place once/second tasks for ISR here (Be sure of the right bank!) | |
558 banksel common ; flag1 is in Bank1 | |
559 btfss sleepmode ; in Sleepmode? | |
560 call get_ambient_level ; No, get ambient light level and set max_CCPR1L | |
561 | |
562 rcall isr_battery_gauge ; Add amount of battery consumption to battery_gauge:6 | |
563 | |
564 banksel common ; flag1 is in Bank1 | |
565 bsf onesecupdate ; A new second has begun | |
566 btfsc divemode ; in divemode? | |
567 rcall isr_divemode_1sec ; Yes, do some divemode stuff in bank common | |
568 | |
569 tstfsz secs ; Secs == 0 ? | |
570 return ; No, Done. | |
571 | |
572 bsf oneminupdate ; A new minute has begun | |
573 | |
574 btfss divemode ; In Divemode? | |
575 rcall check_nofly_desat_time ; No, so reduce NoFly and Desat and increase interval | |
576 | |
577 ; Check if a new hour has just begun | |
578 tstfsz mins ; mins=0? | |
579 bra isr_rtcc2 ; No | |
580 bsf onehourupdate ; Yes, set flag | |
581 | |
582 isr_rtcc2: | |
583 banksel isr_backup ; Back to Bank0 ISR data | |
584 return ; Done. | |
585 | |
586 isr_battery_gauge: | |
587 banksel isr_backup ; Bank0 ISR data | |
588 movlw current_sleepmode ; 100µA/3600 -> nAs (Sleepmode current) | |
589 movwf isr1_temp ; Store value (low byte) | |
590 clrf isr2_temp ; High byte | |
591 | |
592 banksel common ; flag1 is in Bank1 | |
593 btfss sleepmode ; in Sleepmode? | |
594 rcall isr_battery_gauge2 ; No, compute current consumtion value into isr1_temp and isr2_temp | |
595 | |
596 banksel isr_backup ; Bank0 ISR data | |
597 movf isr1_temp,W ; 48Bit add of isr1_temp and isr2_temp into battery_gauge:6 | |
598 addwf battery_gauge+0,F | |
599 movf isr2_temp,W | |
600 addwfc battery_gauge+1,F | |
601 movlw .0 | |
602 addwfc battery_gauge+2,F | |
603 addwfc battery_gauge+3,F | |
604 addwfc battery_gauge+4,F | |
605 addwfc battery_gauge+5,F | |
606 return | |
607 | |
608 isr_battery_gauge2: | |
609 ; set consumtion rate in nAs for an one second interval | |
610 ; Example: | |
611 ; movlw LOW .55556 ; 0,2A/3600*1e9s = nAs | |
612 ; movwf isr1_temp ; Low byte | |
613 ; movlw HIGH .55556 ; 0,2A/3600*1e9s = nAs | |
614 ; movwf isr2_temp ; High byte | |
615 | |
616 ; Current consumption for LED backlight is 47*CCPR1L+272 | |
617 movf CCPR1L,W | |
618 mullw current_backlight_multi | |
619 movlw LOW current_backlight_offset | |
620 addwf PRODL,F | |
621 movlw HIGH current_backlight_offset | |
622 addwfc PRODH,F | |
623 movff PRODL,isr1_temp | |
624 movff PRODH,isr2_temp ; isr1_temp and isr2_temp hold value for backlight | |
625 | |
626 ; Add current for CPU and GPU | |
627 ; speed_setting=1: ECO (3,1mA -> 861nAs), =2: NORMAL (5,50mA -> 1528nAs) or =3: FASTEST (8,04mA -> 2233nAs) | |
319 | 628 banksel isr_backup ; Bank0 ISR data |
0 | 629 movlw .1 |
630 cpfseq speed_setting | |
631 bra isr_battery_gauge3 | |
632 movlw LOW current_speed_eco | |
633 addwf isr1_temp,F | |
634 movlw HIGH current_speed_eco | |
635 addwfc isr2_temp,F | |
636 bra isr_battery_gauge5 | |
637 isr_battery_gauge3: | |
638 movlw .2 | |
639 cpfseq speed_setting | |
640 bra isr_battery_gauge4 | |
641 movlw LOW current_speed_normal | |
642 addwf isr1_temp,F | |
643 movlw HIGH current_speed_normal | |
644 addwfc isr2_temp,F | |
645 bra isr_battery_gauge5 | |
646 isr_battery_gauge4: | |
647 movlw LOW current_speed_fastest | |
648 addwf isr1_temp,F | |
649 movlw HIGH current_speed_fastest | |
650 addwfc isr2_temp,F | |
651 isr_battery_gauge5: | |
652 ; Add current if IR reciever is on | |
653 btfss ir_power ; IR enabled? | |
654 bra isr_battery_gauge6 ; no | |
655 movlw LOW current_ir_reciever | |
656 addwf isr1_temp,F | |
657 movlw HIGH current_ir_reciever | |
658 addwfc isr2_temp,F | |
659 isr_battery_gauge6: | |
660 ; Add current for compass/accelerometer | |
661 btfss compass_enabled ; compass active? | |
662 bra isr_battery_gauge7 ; no | |
663 movlw LOW current_compass | |
664 addwf isr1_temp,F | |
665 movlw HIGH current_compass | |
666 addwfc isr2_temp,F | |
667 isr_battery_gauge7: | |
668 return | |
669 | |
670 isr_divemode_1sec: | |
671 incf samplesecs,F ; "samplingrate" diving seconds done | |
672 decf samplesecs_value,W ; holds "samplingrate" value (minus 1 into WREG) | |
673 cpfsgt samplesecs ; Done? | |
674 bra isr_divemode_1sec2 ; no | |
675 | |
676 clrf samplesecs ; clear counter... | |
677 bsf store_sample ; ...and set bit for profile storage | |
678 isr_divemode_1sec2: | |
679 ; Increase re-setable average depth divetime counter | |
176 | 680 infsnz average_divesecs+0,F ; increase stopwatch registers |
0 | 681 incf average_divesecs+1,F ; increase stopwatch registers |
682 ; Increase total divetime (Regardless of start_dive_threshold) | |
148 | 683 infsnz total_divetime_seconds+0,F |
684 incf total_divetime_seconds+1,F ; Total dive time (Regardless of start_dive_threshold) | |
0 | 685 |
686 btfss divemode2 ; displayed divetime is running? | |
687 return ; No (e.g. too shallow) | |
688 | |
689 ; increase divetime registers (Displayed dive time) | |
690 incf divesecs,F | |
691 movlw d'59' | |
692 cpfsgt divesecs | |
693 bra isr_divemode_1sec2a | |
694 | |
695 clrf divesecs | |
696 bsf realdive ; this bit is always set (again) if the dive is longer then one minute | |
148 | 697 infsnz divemins+0,F |
698 incf divemins+1,F ; increase divemins | |
0 | 699 |
700 isr_divemode_1sec2a: | |
701 btfss FLAG_apnoe_mode ; Are we in Apnoe mode? | |
702 return ; No | |
703 | |
704 incf apnoe_secs,F ; increase descent registers | |
705 movlw d'59' | |
706 cpfsgt apnoe_secs ; full minute? | |
707 return ; No | |
708 clrf apnoe_secs | |
709 incf apnoe_mins,F ; increase descent mins | |
710 return | |
711 | |
712 ;============================================================================= | |
713 ; BCD to Binary convertion. | |
714 ; Input: isr1_temp = Value in BCD | |
715 ; Output WREG = value in binary. | |
716 isr_rtcc_convert: | |
717 swapf isr1_temp, W | |
718 andlw 0x0F ; W= tens | |
719 rlncf WREG, W ; W= 2*tens | |
720 subwf isr1_temp, F ; 16*tens + ones - 2*tens | |
721 subwf isr1_temp, F ; 14*tens + ones - 2*tens | |
722 subwf isr1_temp, W ; 12*tens + ones - 2*tens | |
723 return | |
724 | |
725 ;============================================================================= | |
726 | |
727 isr_switch_right: ; | |
728 bcf INTCON,INT0IE ; Disable INT0 | |
729 banksel common ; flag1 is in Bank1 | |
152
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730 btfss flip_screen ; 180° flipped? |
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731 bsf switch_right ; Set flag |
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732 btfsc flip_screen ; 180° flipped? |
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|
733 bsf switch_left ; Set flag |
0 | 734 bra isr_switch_common ; Continue... |
735 | |
736 isr_switch_left: ; | |
737 bcf INTCON3,INT1IE ; Disable INT1 | |
738 banksel common ; flag1 is in Bank1 | |
152
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739 btfss flip_screen ; 180° flipped? |
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|
740 bsf switch_left ; Set flag |
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741 btfsc flip_screen ; 180° flipped? |
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742 bsf switch_right ; Set flag |
0 | 743 isr_switch_common: |
744 ; load timer1 for first press | |
745 clrf TMR1L | |
746 movlw TMR1H_VALUE_FIRST ; in steps of 7,8125ms | |
747 movwf TMR1H | |
748 bsf T1CON,TMR1ON ; Start Timer 1 | |
749 banksel isr_backup ; Select Bank0 for ISR data. | |
750 bcf INTCON3,INT1IF ; Clear flag | |
751 bcf INTCON,INT0IF ; Clear flag | |
752 return | |
753 | |
754 timer1int: | |
755 bcf PIR1,TMR1IF ; Clear flag | |
756 banksel common ; flag1 is in Bank1 | |
204 | 757 bcf INTCON,INT0IF ; Clear flag |
758 bcf INTCON3,INT1IF ; Clear flag | |
0 | 759 btfss switch_left1 ; Left button hold-down? |
760 bra timer1int_left ; Yes | |
761 btfss switch_right2 ; Right button hold-down? | |
762 bra timer1int_right ; Yes | |
763 | |
764 ; No button hold-down, stop Timer 1 | |
765 bcf T1CON,TMR1ON ; Stop Timer 1 | |
766 bsf INTCON,INT0IE ; Enable INT0 | |
767 bsf INTCON3,INT1IE ; Enable INT1 | |
768 return | |
769 | |
770 timer1int_left: | |
152
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771 btfss flip_screen ; 180° flipped? |
0 | 772 bsf switch_left ; (Re-)Set flag |
152
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773 btfsc flip_screen ; 180° flipped? |
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774 bsf switch_right ; (Re-)Set flag |
0 | 775 bra timer1int_common ; Continue |
776 timer1int_right: | |
152
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777 btfss flip_screen ; 180° flipped? |
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778 bsf switch_right ; Set flag |
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779 btfsc flip_screen ; 180° flipped? |
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780 bsf switch_left ; Set flag |
0 | 781 timer1int_common: |
782 ; load timer1 for next press | |
783 clrf TMR1L | |
784 movlw TMR1H_VALUE_CONT ; Surface mode | |
785 btfsc divemode | |
786 movlw TMR1H_VALUE_CONT_DIVE ; Dive mode | |
787 movwf TMR1H | |
788 return ; Return from timer1int with timer1 kept running | |
789 | |
790 ;============================================================================= | |
791 | |
792 check_nofly_desat_time: | |
793 movf nofly_time+0,W ; Is nofly null ? | |
794 iorwf nofly_time+1,W | |
795 bz check_nofly_desat_time2 ; yes... | |
796 | |
797 movlw d'1' | |
798 subwf nofly_time+0,F | |
799 movlw d'0' | |
800 subwfb nofly_time+1,F ; reduce by one | |
801 | |
802 check_nofly_desat_time2: | |
803 movf desaturation_time+0,W ; Is Desat null ? | |
804 iorwf desaturation_time+1,W | |
805 bz check_nofly_desat_time3 ; yes... | |
806 | |
807 movlw d'1' | |
808 subwf desaturation_time+0,F | |
809 movlw d'0' | |
810 subwfb desaturation_time+1,F ; reduce by one... | |
811 | |
147 | 812 ; Increase surface interval timer |
813 infsnz surface_interval+0,F | |
814 incf surface_interval+1,F | |
0 | 815 return ; Done |
816 | |
817 check_nofly_desat_time3: | |
818 clrf surface_interval+0 | |
819 clrf surface_interval+1 ; Clear surface interval timer | |
820 return ; Done. | |
821 | |
822 ;============================================================================= | |
823 | |
824 isr_restore_clock: | |
825 banksel isr_backup | |
826 movlw d'1' | |
319 | 827 cpfseq speed_setting |
0 | 828 bra isr_restore_speed2 |
829 ; Reset to eco | |
830 movlw b'00000000' | |
831 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
832 movlw b'00110010' | |
833 movwf OSCCON ; 1MHz INTOSC | |
834 movlw T2CON_ECO | |
835 movwf T2CON | |
836 bra isr_restore_exit | |
837 isr_restore_speed2: | |
838 movlw d'2' | |
319 | 839 cpfseq speed_setting |
0 | 840 bra isr_restore_speed3 |
841 ; Reset to normal | |
842 movlw b'01110010' | |
843 movwf OSCCON ; 16MHz INTOSC | |
844 movlw b'00000000' | |
845 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
846 movlw T2CON_NORMAL | |
847 movwf T2CON | |
848 bra isr_restore_exit | |
849 | |
850 isr_restore_speed3: | |
851 ; Reset to fastest | |
852 movlw b'01110010' ; 16MHz INTOSC | |
853 movwf OSCCON | |
854 movlw b'01000000' | |
855 movwf OSCTUNE ; 4x PLL Enable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
856 movlw T2CON_FASTEST | |
857 movwf T2CON | |
858 ; bra isr_restore_exit | |
859 isr_restore_exit: | |
860 btfss OSCCON,HFIOFS | |
861 bra isr_restore_exit ; loop until PLL is stable | |
862 return | |
863 | |
410
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864 |
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865 restore_flash: ; Restore first flash page from eeprom |
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866 banksel common |
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867 ; Start address in internal flash |
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868 movlw 0x00 |
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869 movwf TBLPTRL |
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870 movwf TBLPTRH |
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871 movwf TBLPTRU |
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872 |
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873 movlw b'10010100' ; Setup erase |
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874 rcall Write ; Write! |
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875 |
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876 movlw .128 |
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877 movwf lo ; Byte counter |
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878 clrf EEADR |
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879 movlw .3 |
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880 movwf EEADRH ; Setup backup address |
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881 |
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882 TBLRD*- ; Dummy read to be in 128 byte block |
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883 restore_flash_loop: |
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884 call read_eeprom |
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885 incf EEADR,F |
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886 movff EEDATA,TABLAT ; put 1 byte |
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887 tblwt+* ; Table Write with Pre-Increment |
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888 decfsz lo,F ; 128byte done? |
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889 bra restore_flash_loop ; No |
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890 |
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891 movlw b'10000100' ; Setup writes |
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892 rcall Write ; Write! |
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893 |
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894 reset ; Done, reset CPU |
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895 |
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896 Write: |
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897 movwf EECON1 ; Type of memory to write in |
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898 movlw 0x55 |
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899 movwf EECON2 |
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900 movlw 0xAA |
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901 movwf EECON2 |
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902 bsf EECON1,WR ; Write |
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903 nop |
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904 nop |
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905 return |
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906 |
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907 |
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908 END |