Mercurial > public > hwos_code
annotate src/ostc3.asm @ 100:9c7d9e7198c0
1.30 release
author | heinrichsweikamp |
---|---|
date | Fri, 02 May 2014 19:38:14 +0200 |
parents | 131e6dd9e201 |
children | f3062a611eef |
rev | line source |
---|---|
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 | |
18 CONFIG XINST = OFF ;Code won't excute in extended mode... | |
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 | |
46 | |
47 ; I/O Ports | |
48 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
49 | |
50 clrf REFOCON ; No reference oscillator active on REFO pin | |
51 clrf ODCON1 ; Disable Open Drain capability | |
52 clrf ODCON2 ; Disable Open Drain capability | |
53 clrf ODCON3 ; Disable Open Drain capability | |
54 | |
55 movlw b'11000000' ; ANSEL, AN7 and AN6 -> Analog inputs, PORTA is digital. | |
56 movwf ANCON0 | |
57 movlw b'00000000' ; ANSEL | |
58 movwf ANCON1 | |
59 movlw b'00000010' ; ANSEL, AN17 -> Analog input | |
60 movwf ANCON2 | |
61 | |
62 banksel common | |
63 | |
64 movlw b'00000000' ; 1= Input -> Data TFT_high | |
65 movwf TRISA | |
66 movlw b'00000000' ; Init port | |
67 movwf PORTA | |
68 | |
69 movlw b'00001011' ; 1= Input, (RB0, RB1) -> Switches, RB2 -> Power_MCP, RB3 -> lf_data, RB4 -> LED_green, RB5 -> /TFT_POWER | |
70 movwf TRISB | |
71 movlw b'00100000' ; Init port | |
72 movwf PORTB | |
73 | |
74 movlw b'10011010' ; 1= Input, (RC0, RC1) -> SOSC, RC2 -> TFT_LED_PWM, (RC3,RC4) -> I²C, RC5 -> MOSI_MS5541, (RC6, RC7) -> UART1 | |
75 movwf TRISC | |
76 movlw b'00000000' ; Init port | |
77 movwf PORTC | |
78 | |
79 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 | |
80 movwf TRISD | |
81 movlw b'00000000' ; Init port | |
82 movwf PORTD | |
83 | |
84 movlw b'00000000' ; 1= Input, RE1 -> Power_IR, RE2 -> CS_MCP, RE3 -> LED_blue, RE4 -> power_sw1, | |
85 movwf TRISE | |
86 movlw b'00010000' ; Init port | |
87 movwf PORTE | |
88 | |
89 movlw b'00000110' ; 1= Input, (RF1, RF2) -> Analog | |
90 movwf TRISF | |
91 movlw b'00000000' ; Init port | |
92 movwf PORTF | |
93 | |
94 movlw b'00001111' ; 1= Input, <7:6> not implemented, RG0 -> SCLK_MCP, RG2 -> RX2, RG3 -> AN17_RSSI, RG4 -> SOSC_OUT, RG5 -> /RESET | |
95 movwf TRISG | |
96 movlw b'00000000' ; Init port | |
97 movwf PORTG | |
98 | |
99 movlw b'00000000' ; 1= Input -> Data TFT_low | |
100 movwf TRISH | |
101 movlw b'00000000' ; Init port | |
102 movwf PORTH | |
103 | |
104 movlw b'10010000' ; 1= Input, RJ4 -> vusb_in, RJ5 -> power_sw2, RJ6 -> CLK_MS5541, RJ7 -> MISO_MS5541 | |
105 movwf TRISJ | |
106 movlw b'00100000' ; Init port | |
107 movwf PORTJ | |
108 | |
109 | |
110 ; Timer 0 | |
28 | 111 movlw b'00000001' ; Timer0 with 1:4 prescaler |
112 ; movlw b'00001000' ; Timer0 with 1:1 prescaler | |
0 | 113 movwf T0CON |
114 | |
115 ; Timer 1 - Button hold-down timer | |
116 movlw b'10001100' ; 32768Hz clock source, 1:1 Prescaler -> ; 30,51757813µs/bit in TMR1L:TMR1H | |
117 movwf T1CON | |
118 | |
119 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
120 | |
121 ; RTCC | |
122 movlw 0x55 | |
123 movwf EECON2 | |
124 movlw 0xAA | |
125 movwf EECON2 | |
126 bsf RTCCFG,RTCWREN ; Unlock sequence for RTCWREN | |
127 bsf RTCCFG,RTCPTR1 | |
128 bsf RTCCFG,RTCPTR0 | |
129 bsf RTCCFG,RTCEN ; Module enable | |
130 bsf RTCCFG,RTCOE ; Output enable | |
131 movlw b'00000100' ; 32768Hz SOCS on RTCC pin (PORTG,4) Bit7-5: Pullups for Port D, E and J | |
132 movwf PADCFG1 | |
133 movlw b'11000100' | |
134 movwf ALRMCFG ; 1 second alarm | |
135 movlw d'1' | |
136 movwf ALRMRPT ; Alarm repeat counter | |
137 movlw 0x55 | |
138 movwf EECON2 | |
139 movlw 0xAA | |
140 movwf EECON2 | |
141 bcf RTCCFG,RTCWREN ; Lock sequence for RTCWREN | |
142 | |
143 banksel common | |
144 ; A/D Converter | |
145 movlw b'00011000' ; power off ADC, select AN6 | |
146 movwf ADCON0 | |
147 movlw b'00100000' ; 2.048V Vref+ | |
148 movwf ADCON1 | |
149 movlw b'10001101' ; Right justified | |
150 movwf ADCON2 | |
151 | |
152 | |
153 ;init serial port1 (TRISC6/7) | |
154 movlw b'00001000' ; BRG16=1 | |
155 movwf BAUDCON1 | |
156 movlw b'00100100' ; BRGH=1, SYNC=0 | |
157 movwf TXSTA1 | |
158 movlw .34 ; SPBRGH:SPBRG = .34 : 114285 BAUD @ 16MHz (+0,79% Error to 115200 BAUD) | |
159 movwf SPBRG1 ; SPBRGH:SPBRG = .207 : 19230 BAUD @ 16MHz (-0,16% Error to 19200 BAUD) | |
160 clrf SPBRGH1 ; | |
161 movlw b'10010000' | |
162 movwf RCSTA1 | |
163 | |
164 ;init serial port2 (TRISG2) | |
165 banksel BAUDCON2 | |
166 movlw b'00100000' ; BRG16=0 | |
167 movwf BAUDCON2 | |
168 movlw b'00100000' ; BRGH=0, SYNC=0 | |
169 movwf TXSTA2 | |
170 movlw .102 ; SPBRGH:SPBRG = .102 : 2403 BAUD @ 16MHz | |
171 movwf SPBRG2 | |
172 clrf SPBRGH2 | |
173 movlw b'10010000' | |
174 movwf RCSTA2 | |
175 banksel common | |
176 | |
177 ; Timer3 for IR-RX Timeout | |
178 clrf T3GCON ; Reset Timer3 Gate Control register | |
179 ; movlw b'10001101' ; 1:1 Prescaler -> 2seconds@32768Hz, not synced | |
180 movlw b'10001001' ; 1:1 Prescaler -> 2seconds@32768Hz, synced | |
181 ; 30,51757813µs/bit in TMR3L:TMR3H | |
182 movwf T3CON | |
183 | |
184 ; SPI Module(s) | |
185 ; SPI2: External Flash | |
186 movlw b'00110000' | |
187 movwf SSP2CON1 | |
188 movlw b'00000000' | |
189 movwf SSP2STAT | |
190 ; ->0,25MHz Bit clock @1MHz mode (Eco) | |
191 ; -> 4MHz Bit clock @16MHz mode (Normal) | |
192 ; -> 16MHz Bit clock @64MHz mode (Fastest) | |
193 | |
194 ; MSSP1 Module: I2C Master | |
195 movlw b'00101000' ; I2C Master Mode | |
196 movwf SSP1CON1 | |
197 movlw b'00000000' | |
198 movwf SSP1CON2 | |
199 movlw 0x27 | |
200 movwf SSP1ADD ; 100kHz @ 16MHz Fosc | |
201 | |
202 ; PWM Module(s) | |
203 ; PWM1 for LED dimming | |
204 movlw b'00001100' | |
205 movwf CCP1CON | |
206 movlw b'00000001' | |
207 movwf PSTR1CON ; Pulse steering disabled | |
208 movlw d'255' | |
209 movwf PR2 ; Period | |
210 ; 255 is max brightness (300mW) | |
211 clrf CCPR1L ; Duty cycle | |
212 clrf CCPR1H ; Duty cycle | |
213 movlw T2CON_NORMAL | |
214 movwf T2CON | |
215 | |
216 ; Timer5 for ISR-independent wait routines | |
217 clrf T5GCON ; Reset Timer5 Gate Control register | |
218 ; movlw b'10001101' ; 1:1 Prescaler -> 2seconds@32768Hz, not synced | |
219 movlw b'10001001' ; 1:1 Prescaler -> 2seconds@32768Hz, synced | |
220 ; 30,51757813µs/bit in TMR5L:TMR5H | |
221 movwf T5CON | |
222 | |
223 ; Timer7 for 62,5ms Interrupt (Sensor states) | |
224 banksel 0xF16 ; Addresses, F16h through F5Fh, are also used by SFRs, but are not part of the Access RAM. | |
225 clrf T7GCON ; Reset Timer7 Gate Control register | |
226 ; movlw b'10001101' ; 1:1 Prescaler -> 2seconds@32768Hz, not synced | |
227 movlw b'10001001' ; 1:1 Prescaler -> 2seconds@32768Hz, synced | |
228 movwf T7CON | |
229 clrf TMR7L | |
230 movlw .248 | |
231 movwf TMR7H ; -> Rollover after 2048 cycles -> 62,5ms | |
232 | |
233 banksel common | |
234 ; Interrupts | |
50 | 235 movlw b'11010000' |
0 | 236 movwf INTCON |
77
131e6dd9e201
BUGFIX: Potential bug to freeze the OSTC3 after battery change or update
heinrichsweikamp
parents:
58
diff
changeset
|
237 movlw b'00001000' ; BIT7=1: Pullup for PORTB disabled |
0 | 238 movwf INTCON2 |
77
131e6dd9e201
BUGFIX: Potential bug to freeze the OSTC3 after battery change or update
heinrichsweikamp
parents:
58
diff
changeset
|
239 movlw b'00000000' |
0 | 240 movwf INTCON3 |
241 movlw b'00000001' ; Bit0: TMR1 | |
242 movwf PIE1 | |
243 movlw b'00000010' ; Bit1: TMR3 | |
244 movwf PIE2 | |
245 movlw b'00000000' ; Bit1: TMR5 | |
246 movwf PIE5 | |
247 movlw b'00100001' ; Bit0: RTCC, Bit5: UART2 | |
248 movwf PIE3 | |
249 movlw b'00001000' ; Bit3: TMR7 | |
250 movwf PIE5 | |
251 | |
252 bsf power_sw1 | |
58 | 253 btfss power_sw1 |
254 bra $-4 | |
0 | 255 bsf power_sw2 |
58 | 256 btfss power_sw2 |
257 bra $-4 | |
0 | 258 |
259 return | |
260 | |
261 ;============================================================================= | |
262 global speed_eco | |
263 speed_eco: | |
264 movlw d'1' | |
265 movff WREG,speed_setting ; Bank-independent | |
266 ; Done in ISR | |
267 return | |
268 ;============================================================================= | |
269 global speed_normal | |
270 speed_normal: | |
271 movlw d'2' | |
272 movff WREG,speed_setting ; Bank-independent | |
273 ; Done in ISR | |
274 return | |
275 ;============================================================================= | |
276 global speed_fastest | |
277 speed_fastest: | |
278 movlw d'3' | |
279 movff WREG,speed_setting ; Bank-independent | |
280 ; Done in ISR | |
281 return | |
282 ;============================================================================= | |
283 | |
284 END |