Mercurial > public > hwos_code
annotate src/isr.asm @ 243:ee81f46714cb
auto-select correct settings menu
author | heinrichsweikamp |
---|---|
date | Wed, 04 Mar 2015 16:25:44 +0100 |
parents | e2ea74646127 |
children | 29acdb601548 |
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 | |
12 #include "ostc3.inc" | |
13 #include "shared_definitions.h" ; Mailbox from/to p2_deco.c | |
14 #include "ms5541.inc" | |
15 #include "adc_lightsensor.inc" | |
16 | |
17 ;============================================================================= | |
18 | |
19 extern start | |
20 | |
21 isr_high CODE 0x0008 ;High Priority Interrups | |
22 bra HighInt | |
23 nop | |
24 nop | |
25 nop | |
26 nop | |
27 nop | |
28 nop | |
29 bra HighInt | |
30 | |
31 isr_low CODE 0x00018 ;Low Priority Interrups | |
32 ; *** low priority interrupts not used | |
33 retfie FAST ; Restores BSR, STATUS and WREG | |
34 | |
35 HighInt: | |
36 movff PRODL,isr_prod+0 | |
37 movff PRODH,isr_prod+1 | |
38 | |
39 ; Buttons | |
40 btfsc PIR1,TMR1IF ; Timer1 INT (Button hold-down Timer) | |
41 rcall timer1int | |
42 btfsc INTCON,INT0IF ; Buttons | |
43 rcall isr_switch_right | |
44 btfsc INTCON3,INT1IF ; Buttons | |
45 rcall isr_switch_left | |
46 | |
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47 ; IR/S8-Link |
113 | 48 btfsc PIR3,RC2IF ; UART2 |
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49 rcall isr_uart2 ; IR/S8-Link |
0 | 50 btfsc PIR2,TMR3IF ; Timer 3 |
51 rcall isr_timer3 ; IR-Link Timeout | |
113 | 52 |
53 ; Pressure sensor and others | |
54 btfsc PIR5,TMR7IF ; Timer 7 | |
55 rcall isr_tmr7 ; Every 62,5ms | |
56 | |
0 | 57 ; RTCC |
58 btfsc PIR3,RTCCIF ; Real-time-clock interrupt | |
59 rcall isr_rtcc ; May return in bank common! | |
60 | |
61 movff isr_prod+1,PRODH | |
62 movff isr_prod+0,PRODL | |
63 retfie FAST ; Restores BSR, STATUS and WREG | |
64 | |
65 ;============================================================================= | |
66 | |
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67 isr_uart2: ; IR/S8-Link |
0 | 68 banksel RCREG2 |
69 movf RCREG2,W | |
70 bcf RCSTA2,CREN ; Clear receiver status | |
71 bsf RCSTA2,CREN | |
72 banksel isr_backup | |
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73 incf ir_s8_counter,F ; Increase counter |
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74 movff ir_s8_counter,isr1_temp ; Copy |
0 | 75 dcfsnz isr1_temp,F |
204 | 76 movwf ir_s8_buffer+.0 |
0 | 77 dcfsnz isr1_temp,F |
204 | 78 movwf ir_s8_buffer+.1 |
0 | 79 dcfsnz isr1_temp,F |
204 | 80 movwf ir_s8_buffer+.2 |
0 | 81 dcfsnz isr1_temp,F |
204 | 82 movwf ir_s8_buffer+.3 |
0 | 83 dcfsnz isr1_temp,F |
204 | 84 movwf ir_s8_buffer+.4 |
0 | 85 dcfsnz isr1_temp,F |
204 | 86 movwf ir_s8_buffer+.5 |
0 | 87 dcfsnz isr1_temp,F |
204 | 88 movwf ir_s8_buffer+.6 |
0 | 89 dcfsnz isr1_temp,F |
204 | 90 movwf ir_s8_buffer+.7 |
0 | 91 dcfsnz isr1_temp,F |
204 | 92 movwf ir_s8_buffer+.8 |
0 | 93 dcfsnz isr1_temp,F |
204 | 94 movwf ir_s8_buffer+.9 |
0 | 95 dcfsnz isr1_temp,F |
204 | 96 movwf ir_s8_buffer+.10 |
0 | 97 dcfsnz isr1_temp,F |
204 | 98 movwf ir_s8_buffer+.11 |
0 | 99 dcfsnz isr1_temp,F |
204 | 100 movwf ir_s8_buffer+.12 |
0 | 101 dcfsnz isr1_temp,F |
204 | 102 movwf ir_s8_buffer+.13 |
0 | 103 dcfsnz isr1_temp,F |
204 | 104 movwf ir_s8_buffer+.14 |
0 | 105 dcfsnz isr1_temp,F |
204 | 106 movwf ir_s8_buffer+.15 |
113 | 107 dcfsnz isr1_temp,F |
204 | 108 movwf ir_s8_buffer+.16 |
113 | 109 dcfsnz isr1_temp,F |
204 | 110 movwf ir_s8_buffer+.17 |
113 | 111 |
0 | 112 clrf TMR3L ; Preload timer |
113 movlw .253 | |
114 movwf TMR3H | |
115 bsf T3CON,TMR3ON ; (Re)Start Timeout counter | |
116 return | |
117 | |
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118 isr_timer3: ; IR/S8-Link Timeout |
0 | 119 bcf T3CON,TMR3ON ; Stop Timer3 |
120 banksel isr_backup ; Select Bank0 for ISR data. | |
121 movlw .15 | |
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122 cpfseq ir_s8_counter ; Got exact 15bytes? |
0 | 123 bra isr_timer3_1 ; No, test for 16bytes |
113 | 124 bra isr_timer3_ir ; Got 15 bytes, compute local checksum |
0 | 125 isr_timer3_1: |
126 movlw .16 | |
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127 cpfseq ir_s8_counter ; Got exact 16bytes? |
113 | 128 bra isr_timer3_2 ; No, test for 17bytes |
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129 tstfsz ir_s8_buffer+.15 ; Last byte=0x00 |
0 | 130 bra isr_timer3_exit ; No, exit |
113 | 131 bra isr_timer3_ir ; Got 16 bytes, compute local checksum |
132 isr_timer3_2: | |
133 movlw .17 | |
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134 cpfseq ir_s8_counter ; Got exact 17bytes? |
113 | 135 bra isr_timer3_exit ; No, exit |
136 bra isr_timer3_s8 ; S8 data | |
0 | 137 |
113 | 138 isr_timer3_ir: ; IR input |
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139 movff ir_s8_buffer+.0,PRODL |
0 | 140 clrf PRODH |
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141 movf ir_s8_buffer+.1,W |
0 | 142 rcall isr_timer3_checksum |
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143 movf ir_s8_buffer+.2,W |
0 | 144 rcall isr_timer3_checksum |
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145 movf ir_s8_buffer+.3,W |
0 | 146 rcall isr_timer3_checksum |
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147 movf ir_s8_buffer+.4,W |
0 | 148 rcall isr_timer3_checksum |
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149 movf ir_s8_buffer+.5,W |
0 | 150 rcall isr_timer3_checksum |
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151 movf ir_s8_buffer+.6,W |
0 | 152 rcall isr_timer3_checksum |
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153 movf ir_s8_buffer+.7,W |
0 | 154 rcall isr_timer3_checksum |
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155 movf ir_s8_buffer+.8,W |
0 | 156 rcall isr_timer3_checksum |
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157 movf ir_s8_buffer+.9,W |
0 | 158 rcall isr_timer3_checksum |
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159 movf ir_s8_buffer+.10,W |
0 | 160 rcall isr_timer3_checksum |
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161 movf ir_s8_buffer+.11,W |
0 | 162 rcall isr_timer3_checksum |
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163 movf ir_s8_buffer+.12,W |
0 | 164 rcall isr_timer3_checksum |
165 | |
166 ; Compare checksum | |
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167 movf ir_s8_buffer+.13,W |
0 | 168 cpfseq PRODL ; Checksum ok? |
169 bra isr_timer3_exit ; No, exit | |
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170 movf ir_s8_buffer+.14,W |
0 | 171 cpfseq PRODH ; Checksum ok? |
172 bra isr_timer3_exit ; No, exit | |
173 | |
174 ; Checksum OK, copy results | |
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175 movff ir_s8_buffer+.1,hud_status_byte |
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176 movff ir_s8_buffer+.2,o2_mv_sensor1+0 |
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177 movff ir_s8_buffer+.3,o2_mv_sensor1+1 |
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178 movff ir_s8_buffer+.4,o2_mv_sensor2+0 |
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179 movff ir_s8_buffer+.5,o2_mv_sensor2+1 |
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180 movff ir_s8_buffer+.6,o2_mv_sensor3+0 |
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181 movff ir_s8_buffer+.7,o2_mv_sensor3+1 |
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182 movff ir_s8_buffer+.8,o2_ppo2_sensor1 |
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183 movff ir_s8_buffer+.9,o2_ppo2_sensor2 |
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184 movff ir_s8_buffer+.10,o2_ppo2_sensor3 |
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185 movff ir_s8_buffer+.11,hud_battery_mv+0 |
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186 movff ir_s8_buffer+.12,hud_battery_mv+1 |
0 | 187 |
188 movlw ir_timeout_value ; multiples of 62,5ms | |
187
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189 movwf ir_S8_timeout ; Reload timeout |
227
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190 |
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191 banksel hud_status_byte |
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192 bsf hud_connection_ok ; Set manually for hwHUD w/o the HUD module... |
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193 banksel isr_backup ; Select Bank0 for ISR data. |
0 | 194 |
195 isr_timer3_exit: | |
187
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196 clrf ir_s8_counter ; Clear pointer |
0 | 197 bcf PIR2,TMR3IF ; Clear flag |
198 return | |
199 | |
200 isr_timer3_checksum: | |
201 addwf PRODL,F | |
202 movlw .0 | |
203 addwfc PRODH,F | |
204 return | |
205 | |
187
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206 isr_timer3_s8: ; S8 input |
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207 movff ir_s8_buffer+.0,PRODL |
113 | 208 clrf PRODH |
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209 movf ir_s8_buffer+.1,W |
113 | 210 rcall isr_timer3_checksum |
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211 movf ir_s8_buffer+.2,W |
113 | 212 rcall isr_timer3_checksum |
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213 movf ir_s8_buffer+.3,W |
113 | 214 rcall isr_timer3_checksum |
187
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215 movf ir_s8_buffer+.4,W |
113 | 216 rcall isr_timer3_checksum |
187
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217 movf ir_s8_buffer+.5,W |
113 | 218 rcall isr_timer3_checksum |
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219 movf ir_s8_buffer+.6,W |
113 | 220 rcall isr_timer3_checksum |
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221 movf ir_s8_buffer+.7,W |
113 | 222 rcall isr_timer3_checksum |
187
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223 movf ir_s8_buffer+.8,W |
113 | 224 rcall isr_timer3_checksum |
187
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225 movf ir_s8_buffer+.9,W |
113 | 226 rcall isr_timer3_checksum |
187
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227 movf ir_s8_buffer+.10,W |
113 | 228 rcall isr_timer3_checksum |
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229 movf ir_s8_buffer+.11,W |
113 | 230 rcall isr_timer3_checksum |
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231 movf ir_s8_buffer+.12,W |
113 | 232 rcall isr_timer3_checksum |
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233 movf ir_s8_buffer+.13,W |
113 | 234 rcall isr_timer3_checksum |
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235 movf ir_s8_buffer+.14,W |
113 | 236 rcall isr_timer3_checksum |
237 | |
238 ; Compare checksum | |
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239 movf ir_s8_buffer+.15,W |
113 | 240 cpfseq PRODL ; Checksum ok? |
241 bra isr_timer3_exit ; No, exit | |
187
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242 movf ir_s8_buffer+.16,W |
113 | 243 cpfseq PRODH ; Checksum ok? |
244 bra isr_timer3_exit ; No, exit | |
245 | |
246 ; Checksum OK, copy results | |
187
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247 movff ir_s8_buffer+.3,hud_status_byte |
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248 movff ir_s8_buffer+.13,hud_battery_mv+0 |
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249 movff ir_s8_buffer+.14,hud_battery_mv+1 |
113 | 250 |
251 banksel common | |
252 bsf new_s8_data_available ; set flag | |
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253 banksel ir_S8_timeout |
113 | 254 |
255 movlw ir_timeout_value ; multiples of 62,5ms | |
187
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256 movwf ir_S8_timeout ; Reload timeout |
113 | 257 bra isr_timer3_exit ; Exit |
258 | |
259 | |
0 | 260 ;============================================================================= |
261 | |
262 isr_tmr7: ; each 62,5ms | |
263 bcf PIR5,TMR7IF ; clear flag | |
264 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
265 movlw .248 | |
266 movwf TMR7H ; -> Rollover after 2048 cycles -> 62,5ms | |
267 | |
268 banksel isr_backup | |
269 movf max_CCPR1L,W ; Dimm value | |
270 cpfseq CCPR1L ; = current PWM value? | |
271 rcall isr_dimm_tft ; No, adjust until max_CCPR1L=CCPR1L ! | |
272 | |
273 banksel isr_backup | |
187
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274 decfsz ir_S8_timeout,F ; IR Data still valid? |
0 | 275 bra isr_tmr7_2 ; Yes, continue |
276 ; timeout, clear IR-Data | |
277 | |
278 movlw ir_timeout_value ; multiples of 62,5ms | |
187
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279 movwf ir_S8_timeout ; Reload timeout |
0 | 280 |
281 banksel common | |
236 | 282 btfss analog_o2_input |
113 | 283 bra isr_tmr7_1a ; Always with normal ostc3 hardware |
284 btfss s8_digital | |
285 bra isr_tmr7_2 ; only when digital | |
286 isr_tmr7_1a: | |
0 | 287 clrf o2_mv_sensor1+0 |
288 clrf o2_mv_sensor1+1 | |
289 clrf o2_mv_sensor2+0 | |
290 clrf o2_mv_sensor2+1 | |
291 clrf o2_mv_sensor3+0 | |
292 clrf o2_mv_sensor3+1 | |
293 clrf hud_battery_mv+0 | |
294 clrf hud_battery_mv+1 | |
295 clrf hud_status_byte | |
296 clrf o2_ppo2_sensor1 | |
297 clrf o2_ppo2_sensor2 | |
298 clrf o2_ppo2_sensor3 | |
299 | |
300 isr_tmr7_2: | |
301 banksel common | |
302 btfss no_sensor_int ; No sensor interrupt (because it's addressed during sleep) | |
303 bra isr_sensor_state2 ; No, continue | |
304 banksel isr_backup ; Back to Bank0 ISR data | |
305 return | |
306 | |
307 isr_set_speed_to_normal: | |
308 ; Set Speed to normal | |
309 movlw b'01110010' | |
310 movwf OSCCON ; 16MHz INTOSC | |
311 movlw b'00000000' | |
312 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
313 movlw b'00001101' ; 1:2 Postscaler, 1:4 Prescaler, Timer 2 start -> 1960Hz (no-flicker) | |
314 movwf T2CON | |
315 btfss OSCCON,HFIOFS | |
316 bra $-2 ; Wait until clock is stable | |
317 return | |
318 | |
319 isr_sensor_state2: | |
320 banksel common | |
321 movff sensor_state_counter,WREG | |
322 btfss WREG,0 ; every 1/4 second | |
323 bsf quarter_second_update ; Set flag | |
324 movlw d'2' | |
325 cpfseq speed_setting ; Set to normal in case it's not already in normal speed mode | |
326 rcall isr_set_speed_to_normal | |
327 banksel isr_backup ; Back to Bank0 ISR data | |
328 | |
329 incf sensor_state_counter,F ; counts to eight for state maschine | |
330 | |
331 ; State 1: Clear flags and average registers, get temperature (51us) and start pressure integration (73,5us) | |
332 ; State 2: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
333 ; State 3: Get temperature (51us) and start pressure integration (73,5us) | |
334 ; State 4: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
335 ; State 5: Get temperature (51us) and start pressure integration (73,5us) | |
336 ; State 6: Get pressure (51us), start temperature integration (73,5us) and calculate temperature compensated pressure (233us) | |
337 ; State 7: Get temperature (51us) and start pressure integration (73,5us) | |
338 ; 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 | |
339 | |
340 movff sensor_state_counter,WREG ; WREG used as temp here... | |
341 dcfsnz WREG,F | |
342 bra sensor_int_state1_plus_restart ; Do State 1 | |
343 dcfsnz WREG,F | |
344 bra sensor_int_state2 ; Do State 2 | |
345 dcfsnz WREG,F | |
346 bra sensor_int_state1 ; Do State 3 | |
347 dcfsnz WREG,F | |
348 bra sensor_int_state2 ; Do State 4 | |
349 dcfsnz WREG,F | |
350 bra sensor_int_state1 ; Do State 5 | |
351 dcfsnz WREG,F | |
352 bra sensor_int_state2 ; Do State 6 | |
353 dcfsnz WREG,F | |
354 bra sensor_int_state1 ; Do State 7 | |
355 ; bra sensor_int2_plus_average ; Do State 8 | |
356 ;sensor_int2_plus_average: | |
357 ; First, do state2: | |
358 call get_pressure_value ; State2: Get pressure (51us) | |
359 call get_temperature_start ; and start temperature integration (73,5us) | |
360 call calculate_compensation ; calculate temperature compensated pressure (27us) | |
361 ; Build average | |
362 bcf STATUS,C ; clear carry bit. | |
363 rrcf amb_pressure_avg+1 ; amb_pressure sum / 2 | |
364 rrcf amb_pressure_avg+0 | |
365 bcf STATUS,C ; clear carry bit, twice. | |
366 rrcf amb_pressure_avg+1 ; amb_pressure sum / 4 | |
367 rrcf amb_pressure_avg+0 | |
368 | |
369 movff amb_pressure_avg+1,amb_pressure+1 ; copy into actual register | |
370 movff amb_pressure_avg+0,amb_pressure+0 | |
371 | |
372 bcf STATUS,C | |
373 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
374 bsf STATUS,C | |
375 rrcf temperature_avg+1 ; Signed temperature /2 | |
376 rrcf temperature_avg+0 | |
377 bcf STATUS,C | |
378 btfsc temperature_avg+1,7 ; Copy sign bit to carry | |
379 bsf STATUS,C | |
380 rrcf temperature_avg+1 ; Signed temperature /4 | |
381 rrcf temperature_avg+0 | |
382 | |
383 movff temperature_avg+1,temperature+1 ; copy into actual register | |
384 movff temperature_avg+0,temperature+0 | |
385 | |
386 banksel common ; flag1 is in Bank1 | |
387 bcf temp_changed ; Clear flag for temperature update | |
388 bcf pressure_refresh ; Clear flag for pressure update | |
389 banksel isr_backup ; Back to Bank0 ISR data | |
390 | |
391 ; Temp changed? | |
392 movf temperature+0,W | |
393 cpfseq last_temperature+0 | |
394 bra isr_sensor_state2_2 ; Yes | |
395 movf temperature+1,W | |
396 cpfseq last_temperature+1 | |
397 bra isr_sensor_state2_2 ; Yes | |
398 | |
399 bra isr_sensor_state2_3 ; no change | |
400 | |
401 isr_sensor_state2_2: | |
402 banksel common ; flag1 is in Bank1 | |
403 bsf temp_changed ; Yes | |
404 banksel isr_backup ; Back to Bank0 ISR data | |
405 isr_sensor_state2_3: | |
406 movff temperature+0,last_temperature+0 ; Copy for compare | |
407 movff temperature+1,last_temperature+1 | |
408 | |
409 movf amb_pressure+0,W | |
410 cpfseq last_pressure+0 | |
411 bra isr_sensor_state2_4 ; Yes | |
412 movf amb_pressure+1,W | |
413 cpfseq last_pressure+1 | |
414 bra isr_sensor_state2_4 ; Yes | |
415 | |
416 bra isr_sensor_state2_5 ; No change | |
417 isr_sensor_state2_4: | |
418 banksel common ; flag1 is in Bank1 | |
419 bsf pressure_refresh ; Yes | |
420 banksel isr_backup ; Back to Bank0 ISR data | |
421 isr_sensor_state2_5: | |
422 movff amb_pressure+0,last_pressure+0 ; Copy for compare | |
423 movff amb_pressure+1,last_pressure+1 | |
424 | |
425 clrf sensor_state_counter ; Then reset State counter | |
176 | 426 banksel common ; flag2 is in Bank1 |
0 | 427 btfss simulatormode_active ; are we in simulator mode? |
428 bra comp_air_pressure ; no | |
176 | 429 ; Always set pressure_refresh flag in simulator mode |
430 bsf pressure_refresh ; Yes | |
431 banksel isr_backup ; Back to Bank0 ISR data | |
0 | 432 movlw LOW d'1000' ; yes, so simulate 1000mbar surface pressure |
433 movwf last_surfpressure+0 | |
434 movlw HIGH d'1000' | |
435 movwf last_surfpressure+1 | |
436 | |
437 comp_air_pressure: | |
176 | 438 banksel isr_backup ; Back to Bank0 ISR data |
0 | 439 movf last_surfpressure+0,W ; compensate airpressure |
440 subwf amb_pressure+0,W | |
441 movwf rel_pressure+0 ; rel_pressure stores depth! | |
442 | |
443 movf last_surfpressure+1,W | |
444 subwfb amb_pressure+1,W | |
445 movwf rel_pressure+1 | |
446 btfss STATUS,N ; result is below zero? | |
447 bra sensor_int_state_exit | |
448 clrf rel_pressure+0 ; Yes, do not display negative depths | |
449 clrf rel_pressure+1 ; e.g. when surface air pressure dropped during the dive | |
450 bra sensor_int_state_exit | |
451 | |
452 sensor_int_state1_plus_restart: | |
453 clrf amb_pressure_avg+0 ; pressure average registers | |
454 clrf amb_pressure_avg+1 | |
455 clrf temperature_avg+0 | |
456 clrf temperature_avg+1 | |
457 | |
458 sensor_int_state1: | |
459 call get_temperature_value ; State 1: Get temperature | |
460 call get_pressure_start ; and start pressure integration. | |
461 bra sensor_int_state_exit | |
462 | |
463 sensor_int_state2: | |
464 call get_pressure_value ; State2: Get pressure (51us) | |
465 call get_temperature_start ; and start temperature integration (73,5us) | |
466 call calculate_compensation ; calculate temperature compensated pressure (233us) | |
467 ; bra sensor_int_state_exit | |
468 sensor_int_state_exit: | |
469 rcall isr_restore_clock ; Restore clock | |
470 return | |
471 ;============================================================================= | |
472 | |
473 isr_dimm_tft: ; Adjust until max_CCPR1L=CCPR1L ! | |
474 banksel common | |
475 btfsc tft_is_dimming ; Ignore while dimming | |
476 return | |
477 banksel isr_backup | |
478 movf max_CCPR1L,W | |
479 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L? | |
480 bra isr_dimm_tft2 ; No, dimm up | |
481 ; dimm down | |
482 decf CCPR1L,F ; -1 | |
483 return | |
484 isr_dimm_tft2: | |
485 movf max_CCPR1L,W | |
31
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486 sublw ambient_light_min_eco |
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487 cpfsgt CCPR1L ; CCPR1L>max_CCPR1L-ambient_light_min_eco? |
0 | 488 bra isr_dimm_tft3 ; No, dimm up slow |
489 ; dimm up faster | |
490 movlw .5 | |
491 addwf CCPR1L,F | |
492 isr_dimm_tft3: | |
493 incf CCPR1L,F ; +1 | |
494 return | |
495 | |
496 | |
497 isr_rtcc: ; each second | |
498 bcf PIR3,RTCCIF ; clear flag | |
499 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
500 bsf RTCCFG,RTCPTR1 | |
501 bsf RTCCFG,RTCPTR0 ; year | |
502 movff RTCVALL,year ; format is BCD! | |
503 movff RTCVALH,day ; dummy read | |
504 movff RTCVALL,day ; format is BCD! | |
505 movff RTCVALH,month ; format is BCD! | |
506 movff RTCVALL,hours ; format is BCD! | |
507 movff RTCVALH,secs ; format is BCD! | |
508 movff RTCVALL,secs ; format is BCD! | |
509 movff RTCVALH,mins ; format is BCD! | |
510 banksel isr_backup ; Back to Bank0 ISR data | |
511 | |
512 ; Convert BCD to DEC and set registers | |
513 movff mins, isr1_temp | |
514 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
515 movff WREG,mins | |
516 movff secs, isr1_temp | |
517 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
518 movff WREG,secs | |
519 movff hours, isr1_temp | |
520 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
521 movff WREG,hours | |
522 movff month, isr1_temp | |
523 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
524 movff WREG,month | |
525 movff day, isr1_temp | |
526 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
527 movff WREG,day | |
528 movff year, isr1_temp | |
529 rcall isr_rtcc_convert ; Converts to dec with result in WREG | |
530 movff WREG,year | |
531 | |
532 ; Place once/second tasks for ISR here (Be sure of the right bank!) | |
533 banksel common ; flag1 is in Bank1 | |
534 btfss sleepmode ; in Sleepmode? | |
535 call get_ambient_level ; No, get ambient light level and set max_CCPR1L | |
536 | |
537 rcall isr_battery_gauge ; Add amount of battery consumption to battery_gauge:6 | |
538 | |
539 banksel common ; flag1 is in Bank1 | |
540 bsf onesecupdate ; A new second has begun | |
541 btfsc divemode ; in divemode? | |
542 rcall isr_divemode_1sec ; Yes, do some divemode stuff in bank common | |
543 | |
544 tstfsz secs ; Secs == 0 ? | |
545 return ; No, Done. | |
546 | |
547 bsf oneminupdate ; A new minute has begun | |
548 | |
549 btfss divemode ; In Divemode? | |
550 rcall check_nofly_desat_time ; No, so reduce NoFly and Desat and increase interval | |
551 | |
552 ; Check if a new hour has just begun | |
553 tstfsz mins ; mins=0? | |
554 bra isr_rtcc2 ; No | |
555 bsf onehourupdate ; Yes, set flag | |
556 | |
557 isr_rtcc2: | |
558 banksel isr_backup ; Back to Bank0 ISR data | |
559 return ; Done. | |
560 | |
561 isr_battery_gauge: | |
562 banksel isr_backup ; Bank0 ISR data | |
563 movlw current_sleepmode ; 100µA/3600 -> nAs (Sleepmode current) | |
564 movwf isr1_temp ; Store value (low byte) | |
565 clrf isr2_temp ; High byte | |
566 | |
567 banksel common ; flag1 is in Bank1 | |
568 btfss sleepmode ; in Sleepmode? | |
569 rcall isr_battery_gauge2 ; No, compute current consumtion value into isr1_temp and isr2_temp | |
570 | |
571 banksel isr_backup ; Bank0 ISR data | |
572 movf isr1_temp,W ; 48Bit add of isr1_temp and isr2_temp into battery_gauge:6 | |
573 addwf battery_gauge+0,F | |
574 movf isr2_temp,W | |
575 addwfc battery_gauge+1,F | |
576 movlw .0 | |
577 addwfc battery_gauge+2,F | |
578 addwfc battery_gauge+3,F | |
579 addwfc battery_gauge+4,F | |
580 addwfc battery_gauge+5,F | |
581 return | |
582 | |
583 isr_battery_gauge2: | |
584 ; set consumtion rate in nAs for an one second interval | |
585 ; Example: | |
586 ; movlw LOW .55556 ; 0,2A/3600*1e9s = nAs | |
587 ; movwf isr1_temp ; Low byte | |
588 ; movlw HIGH .55556 ; 0,2A/3600*1e9s = nAs | |
589 ; movwf isr2_temp ; High byte | |
590 | |
591 ; Current consumption for LED backlight is 47*CCPR1L+272 | |
592 movf CCPR1L,W | |
593 mullw current_backlight_multi | |
594 movlw LOW current_backlight_offset | |
595 addwf PRODL,F | |
596 movlw HIGH current_backlight_offset | |
597 addwfc PRODH,F | |
598 movff PRODL,isr1_temp | |
599 movff PRODH,isr2_temp ; isr1_temp and isr2_temp hold value for backlight | |
600 | |
601 ; Add current for CPU and GPU | |
602 ; speed_setting=1: ECO (3,1mA -> 861nAs), =2: NORMAL (5,50mA -> 1528nAs) or =3: FASTEST (8,04mA -> 2233nAs) | |
603 movlw .1 | |
604 cpfseq speed_setting | |
605 bra isr_battery_gauge3 | |
606 banksel isr_backup ; Bank0 ISR data | |
607 movlw LOW current_speed_eco | |
608 addwf isr1_temp,F | |
609 movlw HIGH current_speed_eco | |
610 addwfc isr2_temp,F | |
611 bra isr_battery_gauge5 | |
612 isr_battery_gauge3: | |
613 movlw .2 | |
614 cpfseq speed_setting | |
615 bra isr_battery_gauge4 | |
616 banksel isr_backup ; Bank0 ISR data | |
617 movlw LOW current_speed_normal | |
618 addwf isr1_temp,F | |
619 movlw HIGH current_speed_normal | |
620 addwfc isr2_temp,F | |
621 bra isr_battery_gauge5 | |
622 isr_battery_gauge4: | |
623 banksel isr_backup ; Bank0 ISR data | |
624 movlw LOW current_speed_fastest | |
625 addwf isr1_temp,F | |
626 movlw HIGH current_speed_fastest | |
627 addwfc isr2_temp,F | |
628 isr_battery_gauge5: | |
629 ; Add current if IR reciever is on | |
630 btfss ir_power ; IR enabled? | |
631 bra isr_battery_gauge6 ; no | |
632 movlw LOW current_ir_reciever | |
633 addwf isr1_temp,F | |
634 movlw HIGH current_ir_reciever | |
635 addwfc isr2_temp,F | |
636 isr_battery_gauge6: | |
637 ; Add current for compass/accelerometer | |
638 btfss compass_enabled ; compass active? | |
639 bra isr_battery_gauge7 ; no | |
640 movlw LOW current_compass | |
641 addwf isr1_temp,F | |
642 movlw HIGH current_compass | |
643 addwfc isr2_temp,F | |
644 isr_battery_gauge7: | |
645 return | |
646 | |
647 isr_divemode_1sec: | |
648 incf samplesecs,F ; "samplingrate" diving seconds done | |
649 decf samplesecs_value,W ; holds "samplingrate" value (minus 1 into WREG) | |
650 cpfsgt samplesecs ; Done? | |
651 bra isr_divemode_1sec2 ; no | |
652 | |
653 clrf samplesecs ; clear counter... | |
654 bsf store_sample ; ...and set bit for profile storage | |
655 isr_divemode_1sec2: | |
656 ; Increase re-setable average depth divetime counter | |
176 | 657 infsnz average_divesecs+0,F ; increase stopwatch registers |
0 | 658 incf average_divesecs+1,F ; increase stopwatch registers |
659 ; Increase total divetime (Regardless of start_dive_threshold) | |
148 | 660 infsnz total_divetime_seconds+0,F |
661 incf total_divetime_seconds+1,F ; Total dive time (Regardless of start_dive_threshold) | |
0 | 662 |
663 btfss divemode2 ; displayed divetime is running? | |
664 return ; No (e.g. too shallow) | |
665 | |
666 ; increase divetime registers (Displayed dive time) | |
667 incf divesecs,F | |
668 movlw d'59' | |
669 cpfsgt divesecs | |
670 bra isr_divemode_1sec2a | |
671 | |
672 clrf divesecs | |
673 bsf realdive ; this bit is always set (again) if the dive is longer then one minute | |
148 | 674 infsnz divemins+0,F |
675 incf divemins+1,F ; increase divemins | |
0 | 676 |
677 isr_divemode_1sec2a: | |
678 btfss FLAG_apnoe_mode ; Are we in Apnoe mode? | |
679 return ; No | |
680 | |
681 incf apnoe_secs,F ; increase descent registers | |
682 movlw d'59' | |
683 cpfsgt apnoe_secs ; full minute? | |
684 return ; No | |
685 clrf apnoe_secs | |
686 incf apnoe_mins,F ; increase descent mins | |
687 return | |
688 | |
689 ;============================================================================= | |
690 ; BCD to Binary convertion. | |
691 ; Input: isr1_temp = Value in BCD | |
692 ; Output WREG = value in binary. | |
693 isr_rtcc_convert: | |
694 swapf isr1_temp, W | |
695 andlw 0x0F ; W= tens | |
696 rlncf WREG, W ; W= 2*tens | |
697 subwf isr1_temp, F ; 16*tens + ones - 2*tens | |
698 subwf isr1_temp, F ; 14*tens + ones - 2*tens | |
699 subwf isr1_temp, W ; 12*tens + ones - 2*tens | |
700 return | |
701 | |
702 ;============================================================================= | |
703 | |
704 isr_switch_right: ; | |
705 bcf INTCON,INT0IE ; Disable INT0 | |
706 banksel common ; flag1 is in Bank1 | |
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707 btfss flip_screen ; 180° flipped? |
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708 bsf switch_right ; Set flag |
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709 btfsc flip_screen ; 180° flipped? |
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710 bsf switch_left ; Set flag |
0 | 711 bra isr_switch_common ; Continue... |
712 | |
713 isr_switch_left: ; | |
714 bcf INTCON3,INT1IE ; Disable INT1 | |
715 banksel common ; flag1 is in Bank1 | |
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716 btfss flip_screen ; 180° flipped? |
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717 bsf switch_left ; Set flag |
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718 btfsc flip_screen ; 180° flipped? |
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719 bsf switch_right ; Set flag |
0 | 720 isr_switch_common: |
721 ; load timer1 for first press | |
722 clrf TMR1L | |
723 movlw TMR1H_VALUE_FIRST ; in steps of 7,8125ms | |
724 movwf TMR1H | |
725 bsf T1CON,TMR1ON ; Start Timer 1 | |
726 banksel isr_backup ; Select Bank0 for ISR data. | |
727 bcf INTCON3,INT1IF ; Clear flag | |
728 bcf INTCON,INT0IF ; Clear flag | |
729 return | |
730 | |
731 timer1int: | |
732 bcf PIR1,TMR1IF ; Clear flag | |
733 banksel common ; flag1 is in Bank1 | |
204 | 734 bcf INTCON,INT0IF ; Clear flag |
735 bcf INTCON3,INT1IF ; Clear flag | |
0 | 736 btfss switch_left1 ; Left button hold-down? |
737 bra timer1int_left ; Yes | |
738 btfss switch_right2 ; Right button hold-down? | |
739 bra timer1int_right ; Yes | |
740 | |
741 ; No button hold-down, stop Timer 1 | |
742 bcf T1CON,TMR1ON ; Stop Timer 1 | |
743 bsf INTCON,INT0IE ; Enable INT0 | |
744 bsf INTCON3,INT1IE ; Enable INT1 | |
745 return | |
746 | |
747 timer1int_left: | |
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748 btfss flip_screen ; 180° flipped? |
0 | 749 bsf switch_left ; (Re-)Set flag |
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750 btfsc flip_screen ; 180° flipped? |
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751 bsf switch_right ; (Re-)Set flag |
0 | 752 bra timer1int_common ; Continue |
753 timer1int_right: | |
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754 btfss flip_screen ; 180° flipped? |
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755 bsf switch_right ; Set flag |
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756 btfsc flip_screen ; 180° flipped? |
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757 bsf switch_left ; Set flag |
0 | 758 timer1int_common: |
759 ; load timer1 for next press | |
760 clrf TMR1L | |
761 movlw TMR1H_VALUE_CONT ; Surface mode | |
762 btfsc divemode | |
763 movlw TMR1H_VALUE_CONT_DIVE ; Dive mode | |
764 movwf TMR1H | |
765 return ; Return from timer1int with timer1 kept running | |
766 | |
767 ;============================================================================= | |
768 | |
769 check_nofly_desat_time: | |
770 movf nofly_time+0,W ; Is nofly null ? | |
771 iorwf nofly_time+1,W | |
772 bz check_nofly_desat_time2 ; yes... | |
773 | |
774 movlw d'1' | |
775 subwf nofly_time+0,F | |
776 movlw d'0' | |
777 subwfb nofly_time+1,F ; reduce by one | |
778 | |
779 check_nofly_desat_time2: | |
780 movf desaturation_time+0,W ; Is Desat null ? | |
781 iorwf desaturation_time+1,W | |
782 bz check_nofly_desat_time3 ; yes... | |
783 | |
784 movlw d'1' | |
785 subwf desaturation_time+0,F | |
786 movlw d'0' | |
787 subwfb desaturation_time+1,F ; reduce by one... | |
788 | |
147 | 789 ; Increase surface interval timer |
790 infsnz surface_interval+0,F | |
791 incf surface_interval+1,F | |
0 | 792 return ; Done |
793 | |
794 check_nofly_desat_time3: | |
795 clrf surface_interval+0 | |
796 clrf surface_interval+1 ; Clear surface interval timer | |
797 return ; Done. | |
798 | |
799 ;============================================================================= | |
800 | |
801 isr_restore_clock: | |
802 banksel isr_backup | |
803 movff speed_setting,isr1_temp ; Copy to Bank0 | |
804 movlw d'1' | |
805 cpfseq isr1_temp | |
806 bra isr_restore_speed2 | |
807 ; Reset to eco | |
808 movlw b'00000000' | |
809 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
810 movlw b'00110010' | |
811 movwf OSCCON ; 1MHz INTOSC | |
812 movlw T2CON_ECO | |
813 movwf T2CON | |
814 bra isr_restore_exit | |
815 isr_restore_speed2: | |
816 movlw d'2' | |
817 cpfseq isr1_temp | |
818 bra isr_restore_speed3 | |
819 ; Reset to normal | |
820 movlw b'01110010' | |
821 movwf OSCCON ; 16MHz INTOSC | |
822 movlw b'00000000' | |
823 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
824 movlw T2CON_NORMAL | |
825 movwf T2CON | |
826 bra isr_restore_exit | |
827 | |
828 isr_restore_speed3: | |
829 ; Reset to fastest | |
830 movlw b'01110010' ; 16MHz INTOSC | |
831 movwf OSCCON | |
832 movlw b'01000000' | |
833 movwf OSCTUNE ; 4x PLL Enable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
834 movlw T2CON_FASTEST | |
835 movwf T2CON | |
836 ; bra isr_restore_exit | |
837 isr_restore_exit: | |
838 btfss OSCCON,HFIOFS | |
839 bra isr_restore_exit ; loop until PLL is stable | |
840 return | |
841 | |
842 END |