Mercurial > public > hwos_code
annotate src/ostc3.asm @ 255:ad62dff7739a
add bearing option to compass
author | heinrichsweikamp |
---|---|
date | Mon, 23 Mar 2015 17:07:57 +0100 |
parents | 56276a2418f9 |
children |
rev | line source |
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0 | 1 ;============================================================================= |
2 ; | |
3 ; File ostc3.asm | |
4 ; | |
5 ; Definition of the ostc3 dive computer platform. | |
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 ; 2011-06-24 : [MH] Added clock speeds. | |
12 #include "ostc3.inc" | |
13 | |
14 ;============================================================================= | |
15 ;----------------------------- CONFIG --------------------------------- | |
1 | 16 CONFIG RETEN = OFF ;Disabled - Controlled by SRETEN bit |
17 CONFIG SOSCSEL = HIGH ;High Power SOSC circuit selected | |
199 | 18 CONFIG XINST = OFF ;Code won't excute in extended mode... |
1 | 19 CONFIG FOSC = INTIO2 ;Internal RC oscillator, no clock-out |
20 CONFIG PLLCFG = OFF | |
21 CONFIG IESO = OFF ;Disabled | |
22 CONFIG PWRTEN = OFF ;Disabled, because incompatible with ICD3 (Ri-400) | |
23 CONFIG BOREN = ON ;Controlled with SBOREN bit | |
24 CONFIG BORV = 2 ;2.0V | |
25 CONFIG BORPWR = MEDIUM ;BORMV set to medium power level | |
26 CONFIG WDTEN = ON ;WDT controlled by SWDTEN bit setting | |
27 CONFIG WDTPS = 128 ;1:128 | |
28 CONFIG RTCOSC = SOSCREF ;RTCC uses SOSC | |
29 CONFIG MCLRE = ON ;MCLR Enabled, RG5 Disabled | |
30 CONFIG CCP2MX = PORTBE ;RE7-Microcontroller Mode/RB3-All other modes | |
0 | 31 ;============================================================================= |
32 boot CODE | |
33 global init_ostc3 | |
34 | |
35 init_ostc3: | |
36 banksel common ; Bank1 | |
37 ;init oscillator | |
38 movlw b'01110010' | |
39 movwf OSCCON ; 16MHz INTOSC | |
40 movlw b'00001000' | |
41 movwf OSCCON2 ; Secondary Oscillator running | |
42 movlw b'00000000' | |
43 movwf OSCTUNE ; 4x PLL Disable (Bit6) - only works with 8 or 16MHz (=32 or 64MHz) | |
44 bcf RCON,SBOREN ; Bown-Out off | |
45 bcf RCON,IPEN ; Priority Interrupts off | |
209 | 46 clrf CM1CON ; Disable |
199 | 47 banksel WDTCON |
48 movlw b'10000000' | |
49 movwf WDTCON ; Setup Watchdog | |
0 | 50 |
51 ; I/O Ports | |
52 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
53 | |
54 clrf REFOCON ; No reference oscillator active on REFO pin | |
55 clrf ODCON1 ; Disable Open Drain capability | |
56 clrf ODCON2 ; Disable Open Drain capability | |
57 clrf ODCON3 ; Disable Open Drain capability | |
209 | 58 clrf CM2CON ; Disable |
59 clrf CM3CON ; Disable | |
0 | 60 |
61 movlw b'11000000' ; ANSEL, AN7 and AN6 -> Analog inputs, PORTA is digital. | |
62 movwf ANCON0 | |
113 | 63 movlw b'00000111' ; ANSEL, AN8, AN9, AN10 -> Analog in |
0 | 64 movwf ANCON1 |
65 movlw b'00000010' ; ANSEL, AN17 -> Analog input | |
66 movwf ANCON2 | |
67 | |
68 banksel common | |
69 | |
70 movlw b'00000000' ; 1= Input -> Data TFT_high | |
71 movwf TRISA | |
72 movlw b'00000000' ; Init port | |
73 movwf PORTA | |
74 | |
113 | 75 movlw b'00000011' ; 1= Input, (RB0, RB1) -> Switches, RB2 -> Power_MCP, RB3 -> s8_npower, RB4 -> LED_green, RB5 -> /TFT_POWER |
0 | 76 movwf TRISB |
113 | 77 movlw b'00101000' ; Init port |
0 | 78 movwf PORTB |
79 | |
80 movlw b'10011010' ; 1= Input, (RC0, RC1) -> SOSC, RC2 -> TFT_LED_PWM, (RC3,RC4) -> I²C, RC5 -> MOSI_MS5541, (RC6, RC7) -> UART1 | |
81 movwf TRISC | |
82 movlw b'00000000' ; Init port | |
83 movwf PORTC | |
84 | |
85 movlw b'00100000' ; 1= Input, RD0 -> TFT_NCS, RD1 -> TFT_RS, RD2 -> TFT_NWR, RD3 -> TFT_RD, RD4 -> MOSI_Flash, RD5 -> MISO_Flash, RD6 -> CLK_Flash, RD7 -> TFT_NRESET | |
86 movwf TRISD | |
87 movlw b'00000000' ; Init port | |
88 movwf PORTD | |
89 | |
200 | 90 movlw b'00000000' ; 1= Input, RE1 -> Power_IR, RE2 -> CS_MCP, RE3 -> LED_blue, RE4 -> power_sw1, RE5 -> Set to 1 for cR hardware |
0 | 91 movwf TRISE |
209 | 92 movlw b'00110001' ; Init port |
0 | 93 movwf PORTE |
94 | |
209 | 95 movlw b'01111110' ; 1= Input, (RF1, RF2, RF3, RF4, RF5) -> Analog |
0 | 96 movwf TRISF |
97 movlw b'00000000' ; Init port | |
98 movwf PORTF | |
99 | |
113 | 100 movlw b'00001110' ; 1= Input, <7:6> not implemented, RG0 -> TX3_PIEZO_CFG, RG2 -> RX2, RG3 -> AN17_RSSI, RG4 -> SOSC_OUT, RG5 -> /RESET |
0 | 101 movwf TRISG |
113 | 102 movlw b'00000001' ; Init port |
0 | 103 movwf PORTG |
104 | |
105 movlw b'00000000' ; 1= Input -> Data TFT_low | |
106 movwf TRISH | |
107 movlw b'00000000' ; Init port | |
108 movwf PORTH | |
109 | |
120 | 110 movlw b'10011011' ; 1= Input, RJ4 -> vusb_in, RJ5 -> power_sw2, RJ6 -> CLK_MS5541, RJ7 -> MISO_MS5541 |
0 | 111 movwf TRISJ |
112 movlw b'00100000' ; Init port | |
113 movwf PORTJ | |
114 | |
115 | |
116 ; Timer 0 | |
28 | 117 movlw b'00000001' ; Timer0 with 1:4 prescaler |
118 ; movlw b'00001000' ; Timer0 with 1:1 prescaler | |
0 | 119 movwf T0CON |
120 | |
121 ; Timer 1 - Button hold-down timer | |
122 movlw b'10001100' ; 32768Hz clock source, 1:1 Prescaler -> ; 30,51757813µs/bit in TMR1L:TMR1H | |
123 movwf T1CON | |
124 | |
125 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
126 | |
127 ; RTCC | |
128 movlw 0x55 | |
129 movwf EECON2 | |
130 movlw 0xAA | |
131 movwf EECON2 | |
132 bsf RTCCFG,RTCWREN ; Unlock sequence for RTCWREN | |
133 bsf RTCCFG,RTCPTR1 | |
134 bsf RTCCFG,RTCPTR0 | |
135 bsf RTCCFG,RTCEN ; Module enable | |
136 bsf RTCCFG,RTCOE ; Output enable | |
137 movlw b'00000100' ; 32768Hz SOCS on RTCC pin (PORTG,4) Bit7-5: Pullups for Port D, E and J | |
138 movwf PADCFG1 | |
139 movlw b'11000100' | |
140 movwf ALRMCFG ; 1 second alarm | |
141 movlw d'1' | |
142 movwf ALRMRPT ; Alarm repeat counter | |
143 movlw 0x55 | |
144 movwf EECON2 | |
145 movlw 0xAA | |
146 movwf EECON2 | |
147 bcf RTCCFG,RTCWREN ; Lock sequence for RTCWREN | |
148 | |
149 banksel common | |
150 ; A/D Converter | |
151 movlw b'00011000' ; power off ADC, select AN6 | |
152 movwf ADCON0 | |
153 movlw b'00100000' ; 2.048V Vref+ | |
154 movwf ADCON1 | |
155 movlw b'10001101' ; Right justified | |
156 movwf ADCON2 | |
157 | |
158 | |
159 ;init serial port1 (TRISC6/7) | |
160 movlw b'00001000' ; BRG16=1 | |
161 movwf BAUDCON1 | |
204 | 162 ; movlw b'00100100' ; BRGH=1, SYNC=0 |
163 ; movwf TXSTA1 | |
0 | 164 movlw .34 ; SPBRGH:SPBRG = .34 : 114285 BAUD @ 16MHz (+0,79% Error to 115200 BAUD) |
165 movwf SPBRG1 ; SPBRGH:SPBRG = .207 : 19230 BAUD @ 16MHz (-0,16% Error to 19200 BAUD) | |
166 clrf SPBRGH1 ; | |
204 | 167 ; movlw b'10010000' |
168 ; movwf RCSTA1 | |
169 | |
170 clrf RCSTA1 | |
171 clrf TXSTA1 ; UART disable | |
172 bcf PORTC,6 ; TX hard to GND | |
0 | 173 |
174 ;init serial port2 (TRISG2) | |
175 banksel BAUDCON2 | |
113 | 176 movlw b'00100000' ; BRG16=0 ; inverted for IR |
0 | 177 movwf BAUDCON2 |
178 movlw b'00100000' ; BRGH=0, SYNC=0 | |
179 movwf TXSTA2 | |
180 movlw .102 ; SPBRGH:SPBRG = .102 : 2403 BAUD @ 16MHz | |
181 movwf SPBRG2 | |
182 clrf SPBRGH2 | |
183 movlw b'10010000' | |
184 movwf RCSTA2 | |
185 banksel common | |
186 | |
187 ; Timer3 for IR-RX Timeout | |
188 clrf T3GCON ; Reset Timer3 Gate Control register | |
189 ; movlw b'10001101' ; 1:1 Prescaler -> 2seconds@32768Hz, not synced | |
190 movlw b'10001001' ; 1:1 Prescaler -> 2seconds@32768Hz, synced | |
191 ; 30,51757813µs/bit in TMR3L:TMR3H | |
192 movwf T3CON | |
193 | |
194 ; SPI Module(s) | |
195 ; SPI2: External Flash | |
196 movlw b'00110000' | |
197 movwf SSP2CON1 | |
198 movlw b'00000000' | |
199 movwf SSP2STAT | |
200 ; ->0,25MHz Bit clock @1MHz mode (Eco) | |
201 ; -> 4MHz Bit clock @16MHz mode (Normal) | |
202 ; -> 16MHz Bit clock @64MHz mode (Fastest) | |
203 | |
204 ; MSSP1 Module: I2C Master | |
205 movlw b'00101000' ; I2C Master Mode | |
206 movwf SSP1CON1 | |
207 movlw b'00000000' | |
208 movwf SSP1CON2 | |
209 movlw 0x27 | |
210 movwf SSP1ADD ; 100kHz @ 16MHz Fosc | |
211 | |
212 ; PWM Module(s) | |
213 ; PWM1 for LED dimming | |
214 movlw b'00001100' | |
215 movwf CCP1CON | |
216 movlw b'00000001' | |
217 movwf PSTR1CON ; Pulse steering disabled | |
218 movlw d'255' | |
219 movwf PR2 ; Period | |
220 ; 255 is max brightness (300mW) | |
221 clrf CCPR1L ; Duty cycle | |
222 clrf CCPR1H ; Duty cycle | |
223 movlw T2CON_NORMAL | |
224 movwf T2CON | |
225 | |
226 ; Timer5 for ISR-independent wait routines | |
227 clrf T5GCON ; Reset Timer5 Gate Control register | |
228 ; movlw b'10001101' ; 1:1 Prescaler -> 2seconds@32768Hz, not synced | |
229 movlw b'10001001' ; 1:1 Prescaler -> 2seconds@32768Hz, synced | |
230 ; 30,51757813µs/bit in TMR5L:TMR5H | |
231 movwf T5CON | |
232 | |
233 ; Timer7 for 62,5ms Interrupt (Sensor states) | |
234 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
235 clrf T7GCON ; Reset Timer7 Gate Control register | |
236 ; movlw b'10001101' ; 1:1 Prescaler -> 2seconds@32768Hz, not synced | |
237 movlw b'10001001' ; 1:1 Prescaler -> 2seconds@32768Hz, synced | |
238 movwf T7CON | |
239 clrf TMR7L | |
240 movlw .248 | |
241 movwf TMR7H ; -> Rollover after 2048 cycles -> 62,5ms | |
242 | |
243 banksel common | |
244 ; Interrupts | |
50 | 245 movlw b'11010000' |
0 | 246 movwf INTCON |
77
131e6dd9e201
BUGFIX: Potential bug to freeze the OSTC3 after battery change or update
heinrichsweikamp
parents:
58
diff
changeset
|
247 movlw b'00001000' ; BIT7=1: Pullup for PORTB disabled |
0 | 248 movwf INTCON2 |
77
131e6dd9e201
BUGFIX: Potential bug to freeze the OSTC3 after battery change or update
heinrichsweikamp
parents:
58
diff
changeset
|
249 movlw b'00000000' |
0 | 250 movwf INTCON3 |
251 movlw b'00000001' ; Bit0: TMR1 | |
252 movwf PIE1 | |
253 movlw b'00000010' ; Bit1: TMR3 | |
254 movwf PIE2 | |
255 movlw b'00000000' ; Bit1: TMR5 | |
256 movwf PIE5 | |
257 movlw b'00100001' ; Bit0: RTCC, Bit5: UART2 | |
258 movwf PIE3 | |
259 movlw b'00001000' ; Bit3: TMR7 | |
260 movwf PIE5 | |
261 | |
262 bsf power_sw1 | |
58 | 263 btfss power_sw1 |
264 bra $-4 | |
0 | 265 bsf power_sw2 |
58 | 266 btfss power_sw2 |
267 bra $-4 | |
0 | 268 |
204 | 269 movlw d'2' |
270 movwf speed_setting ; Normal | |
271 | |
272 | |
0 | 273 return |
274 | |
275 ;============================================================================= | |
276 global speed_eco | |
277 speed_eco: | |
278 movlw d'1' | |
279 movff WREG,speed_setting ; Bank-independent | |
280 ; Done in ISR | |
281 return | |
282 ;============================================================================= | |
283 global speed_normal | |
284 speed_normal: | |
285 movlw d'2' | |
286 movff WREG,speed_setting ; Bank-independent | |
287 ; Done in ISR | |
288 return | |
289 ;============================================================================= | |
290 global speed_fastest | |
291 speed_fastest: | |
292 movlw d'3' | |
293 movff WREG,speed_setting ; Bank-independent | |
294 ; Done in ISR | |
295 return | |
296 ;============================================================================= | |
297 | |
298 END |