Mercurial > templog
annotate main.c @ 409:1854abee5a59
add debug url
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 02 Aug 2012 22:11:13 +0800 |
parents | 11b486950f4a |
children | 2ba9065e7c4f |
rev | line source |
---|---|
306 | 1 #include <stdio.h> |
2 #include <string.h> | |
319 | 3 #include <stddef.h> |
307 | 4 #include <avr/io.h> |
5 #include <avr/interrupt.h> | |
6 #include <avr/sleep.h> | |
313 | 7 #include <util/delay.h> |
312 | 8 #include <avr/pgmspace.h> |
319 | 9 #include <avr/eeprom.h> |
360
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
10 #include <avr/wdt.h> |
365 | 11 #include <util/atomic.h> |
306 | 12 #include <util/crc16.h> |
13 | |
318 | 14 // for DWORD of get_fattime() |
309 | 15 #include "integer.h" |
318 | 16 |
17 #include "simple_ds18b20.h" | |
319 | 18 #include "onewire.h" |
309 | 19 |
306 | 20 // configuration params |
21 // - measurement interval | |
22 // - transmit interval | |
23 // - bluetooth params | |
24 // - number of sensors (and range?) | |
25 | |
386 | 26 // TICK should be 8 or less (8 untested). all timers need |
27 // to be a multiple. | |
28 | |
29 #define TICK 6 | |
30 // we have 1024 prescaler, 32768 crystal. | |
31 #define SLEEP_COMPARE (32*TICK-1) | |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
32 |
381
83c83014e5e3
report raw ds18b20 values instead
Matt Johnston <matt@ucc.asn.au>
parents:
368
diff
changeset
|
33 #define VALUE_NOSENSOR 0x07D0 // 125 degrees |
83c83014e5e3
report raw ds18b20 values instead
Matt Johnston <matt@ucc.asn.au>
parents:
368
diff
changeset
|
34 #define VALUE_BROKEN 0x07D1 // 125.0625 |
319 | 35 |
316 | 36 #define BAUD 19200 |
313 | 37 #define UBRR ((F_CPU)/8/(BAUD)-1) |
38 | |
39 #define PORT_LED PORTC | |
40 #define DDR_LED DDRC | |
41 #define PIN_LED PC4 | |
307 | 42 |
321
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
43 #define PORT_SHDN PORTD |
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
44 #define DDR_SHDN DDRD |
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
45 #define PIN_SHDN PD7 |
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
46 |
386 | 47 // total amount of 16bit values available for measurements. |
48 // adjust emperically, be sure to allow enough stack space too | |
49 #define TOTAL_MEASUREMENTS 840 | |
50 | |
51 // each sensor slot uses 8 bytes | |
52 #define MAX_SENSORS 6 | |
312 | 53 |
321
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
54 // fixed at 8, have a shorter name |
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
55 #define ID_LEN OW_ROMCODE_SIZE |
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
56 |
339
449272fc63a3
- Debug log file for server
Matt Johnston <matt@ucc.asn.au>
parents:
338
diff
changeset
|
57 // #define HAVE_UART_ECHO |
449272fc63a3
- Debug log file for server
Matt Johnston <matt@ucc.asn.au>
parents:
338
diff
changeset
|
58 |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
59 // stores a value of clock_epoch combined with the remainder of TCNT2, |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
60 // for 1/32 second accuracy |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
61 struct epoch_ticks |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
62 { |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
63 uint32_t ticks; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
64 // remainder |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
65 uint8_t rem; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
66 }; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
67 |
386 | 68 // eeprom-settable parameters. all timeouts should |
69 // be a multiple of TICK (6 seconds probably) | |
402 | 70 static uint16_t measure_wake = 138; // not a divisor of comms_wake |
386 | 71 static uint16_t comms_wake = 3600; |
72 static uint8_t wake_secs = 30; | |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
73 |
365 | 74 // ---- Atomic guards required accessing these variables |
75 static uint32_t clock_epoch; | |
76 static uint16_t comms_count; | |
77 static uint16_t measure_count; | |
78 // ---- End atomic guards required | |
79 | |
323 | 80 static uint16_t n_measurements; |
365 | 81 |
386 | 82 // calculated at startup as TOTAL_MEASUREMENTS/n_sensors |
83 static uint16_t max_measurements; | |
84 | |
85 static uint16_t measurements[TOTAL_MEASUREMENTS]; | |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
86 |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
87 static struct epoch_ticks first_measurement_clock; |
328
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
88 // last_measurement_clock is redundant but checks that we're not missing |
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
89 // samples |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
90 static struct epoch_ticks last_measurement_clock; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
91 static struct epoch_ticks last_comms_clock; |
365 | 92 |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
93 // boolean flags |
323 | 94 static uint8_t need_measurement; |
95 static uint8_t need_comms; | |
346 | 96 static uint8_t uart_enabled; |
386 | 97 static uint8_t stay_awake; |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
98 static uint8_t button_pressed; |
307 | 99 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
100 // counts down from WAKE_SECS to 0, goes to deep sleep when hits 0 |
323 | 101 static uint8_t comms_timeout; |
307 | 102 |
323 | 103 static uint8_t readpos; |
306 | 104 static char readbuf[30]; |
333
298e502fdcd4
Add some web server handling
Matt Johnston <matt@ucc.asn.au>
parents:
332
diff
changeset
|
105 static uint8_t have_cmd; |
306 | 106 |
386 | 107 static uint8_t n_sensors; |
108 static uint8_t sensor_id[MAX_SENSORS][ID_LEN]; | |
109 | |
110 | |
111 int uart_putchar(char c, FILE *stream); | |
112 static void long_delay(int ms); | |
113 static void blink(); | |
114 static uint16_t adc_vcc(); | |
115 | |
116 static FILE mystdout = FDEV_SETUP_STREAM(uart_putchar, NULL, | |
117 _FDEV_SETUP_WRITE); | |
118 | |
119 static uint16_t crc_out; | |
120 static FILE _crc_stdout = FDEV_SETUP_STREAM(uart_putchar, NULL, | |
121 _FDEV_SETUP_WRITE); | |
122 // convenience | |
123 static FILE *crc_stdout = &_crc_stdout; | |
124 | |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
125 |
319 | 126 // thanks to http://projectgus.com/2010/07/eeprom-access-with-arduino/ |
127 #define eeprom_read_to(dst_p, eeprom_field, dst_size) eeprom_read_block((dst_p), (void *)offsetof(struct __eeprom_data, eeprom_field), (dst_size)) | |
128 #define eeprom_read(dst, eeprom_field) eeprom_read_to((&dst), eeprom_field, sizeof(dst)) | |
129 #define eeprom_write_from(src_p, eeprom_field, src_size) eeprom_write_block((src_p), (void *)offsetof(struct __eeprom_data, eeprom_field), (src_size)) | |
130 #define eeprom_write(src, eeprom_field) { eeprom_write_from(&src, eeprom_field, sizeof(src)); } | |
131 | |
132 #define EXPECT_MAGIC 0x67c9 | |
133 | |
134 struct __attribute__ ((__packed__)) __eeprom_data { | |
382
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
135 // XXX eeprom unused at present |
319 | 136 uint16_t magic; |
386 | 137 uint16_t measure_wake; |
138 uint16_t comms_wake; | |
139 uint8_t wake_secs; | |
319 | 140 }; |
141 | |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
142 static void deep_sleep(); |
307 | 143 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
144 // Very first setup |
324 | 145 static void |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
146 setup_chip() |
324 | 147 { |
360
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
148 cli(); |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
149 |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
150 // stop watchdog timer (might have been used to cause a reset) |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
151 wdt_reset(); |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
152 MCUSR &= ~_BV(WDRF); |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
153 WDTCSR |= _BV(WDCE) | _BV(WDE); |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
154 WDTCSR = 0; |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
155 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
156 // Set clock to 2mhz |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
157 CLKPR = _BV(CLKPCE); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
158 // divide by 4 |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
159 CLKPR = _BV(CLKPS1); |
358
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
160 |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
161 // enable pullups |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
162 PORTB = 0xff; // XXX change when using SPI |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
163 PORTD = 0xff; |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
164 PORTC = 0xff; |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
165 |
325 | 166 // 3.3v power for bluetooth and SD |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
167 DDR_LED |= _BV(PIN_LED); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
168 DDR_SHDN |= _BV(PIN_SHDN); |
325 | 169 |
352
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
170 // set pullup |
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
171 PORTD |= _BV(PD2); |
347 | 172 // INT0 setup |
358
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
173 EICRA = (1<<ISC01); // falling edge - data sheet says it won't work? |
347 | 174 EIMSK = _BV(INT0); |
358
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
175 |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
176 // comparator disable |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
177 ACSR = _BV(ACD); |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
178 |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
179 // disable adc pin input buffers |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
180 DIDR0 = 0x3F; // acd0-adc5 |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
181 DIDR1 = (1<<AIN1D)|(1<<AIN0D); // ain0/ain1 |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
182 |
71d2cc90354a
try a few more power saving measures, untested
Matt Johnston <matt@ucc.asn.au>
parents:
352
diff
changeset
|
183 sei(); |
324 | 184 } |
185 | |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
186 static void |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
187 set_aux_power(uint8_t on) |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
188 { |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
189 if (on) |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
190 { |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
191 PORT_SHDN &= ~_BV(PIN_SHDN); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
192 } |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
193 else |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
194 { |
349 | 195 PORT_SHDN |= _BV(PIN_SHDN); |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
196 } |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
197 } |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
198 |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
199 static void |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
200 get_epoch_ticks(struct epoch_ticks *t) |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
201 { |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
202 ATOMIC_BLOCK(ATOMIC_RESTORESTATE) |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
203 { |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
204 t->ticks = clock_epoch; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
205 t->rem = TCNT2; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
206 } |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
207 } |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
208 |
386 | 209 static void |
210 set_measurement(uint8_t sensor, uint16_t measurement, uint16_t reading) | |
211 { | |
212 measurements[sensor*max_measurements + measurement] = reading; | |
213 } | |
214 | |
215 static uint16_t | |
216 get_measurement(uint8_t sensor, uint16_t measurement) | |
217 { | |
218 return measurements[sensor*max_measurements + measurement]; | |
219 } | |
220 | |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
221 static void |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
222 setup_tick_counter() |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
223 { |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
224 // set up counter2. |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
225 // COM21 COM20 Set OC2 on Compare Match (p116) |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
226 // WGM21 Clear counter on compare |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
227 //TCCR2A = _BV(COM2A1) | _BV(COM2A0) | _BV(WGM21); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
228 // toggle on match |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
229 TCCR2A = _BV(COM2A0); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
230 // CS22 CS21 CS20 clk/1024 |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
231 TCCR2B = _BV(CS22) | _BV(CS21) | _BV(CS20); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
232 // set async mode |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
233 ASSR |= _BV(AS2); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
234 TCNT2 = 0; |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
235 OCR2A = SLEEP_COMPARE; |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
236 // interrupt |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
237 TIMSK2 = _BV(OCIE2A); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
238 } |
324 | 239 |
306 | 240 static void |
313 | 241 uart_on() |
306 | 242 { |
314 | 243 // Power reduction register |
352
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
244 PRR &= ~_BV(PRUSART0); |
314 | 245 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
246 // All of this needs to be done each time after turning off the PRR |
306 | 247 // baud rate |
313 | 248 UBRR0H = (unsigned char)(UBRR >> 8); |
249 UBRR0L = (unsigned char)UBRR; | |
250 // set 2x clock, improves accuracy of UBRR | |
251 UCSR0A |= _BV(U2X0); | |
312 | 252 UCSR0B = _BV(RXCIE0) | _BV(RXEN0) | _BV(TXEN0); |
306 | 253 //8N1 |
313 | 254 UCSR0C = _BV(UCSZ01) | _BV(UCSZ00); |
347 | 255 uart_enabled = 1; |
312 | 256 } |
257 | |
258 static void | |
259 uart_off() | |
260 { | |
395
f0ddb75bcf04
main.c : add a delay before turning on uart
Matt Johnston <matt@ucc.asn.au>
parents:
393
diff
changeset
|
261 // Turn off interrupts and disable tx/rx |
312 | 262 UCSR0B = 0; |
347 | 263 uart_enabled = 0; |
312 | 264 |
265 // Power reduction register | |
352
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
266 PRR |= _BV(PRUSART0); |
306 | 267 } |
268 | |
316 | 269 int |
306 | 270 uart_putchar(char c, FILE *stream) |
271 { | |
347 | 272 if (!uart_enabled) |
273 { | |
274 return EOF; | |
275 } | |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
276 // XXX could perhaps sleep in the loop for power. |
314 | 277 if (c == '\n') |
278 { | |
316 | 279 loop_until_bit_is_set(UCSR0A, UDRE0); |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
280 UDR0 = '\r'; |
314 | 281 } |
308 | 282 loop_until_bit_is_set(UCSR0A, UDRE0); |
283 UDR0 = c; | |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
284 if (stream == crc_stdout) |
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
285 { |
332
05c1249da994
- Move crc16 to utils and fix it
Matt Johnston <matt@ucc.asn.au>
parents:
331
diff
changeset
|
286 crc_out = _crc_ccitt_update(crc_out, c); |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
287 } |
316 | 288 if (c == '\r') |
289 { | |
290 loop_until_bit_is_set(UCSR0A, UDRE0); | |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
291 UDR0 = '\n'; |
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
292 if (stream == crc_stdout) |
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
293 { |
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
294 crc_out = _crc_ccitt_update(crc_out, '\n'); |
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
295 } |
316 | 296 } |
346 | 297 return (unsigned char)c; |
306 | 298 } |
299 | |
300 static void | |
301 cmd_fetch() | |
302 { | |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
303 crc_out = 0; |
361
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
304 |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
305 fprintf_P(crc_stdout, PSTR("START\n")); |
365 | 306 { |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
307 struct epoch_ticks now; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
308 get_epoch_ticks(&now); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
309 fprintf_P(crc_stdout, PSTR("now=%lu\n"), now.ticks); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
310 fprintf_P(crc_stdout, PSTR("now_rem=%hhu\n"), now.rem); |
365 | 311 } |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
312 fprintf_P(crc_stdout, PSTR("time_step=%hu\n"), measure_wake); |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
313 fprintf_P(crc_stdout, PSTR("first_time=%lu\n"), first_measurement_clock.ticks); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
314 fprintf_P(crc_stdout, PSTR("first_time_rem=%hhu\n"), first_measurement_clock.rem); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
315 fprintf_P(crc_stdout, PSTR("last_time=%lu\n"), last_measurement_clock.ticks); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
316 fprintf_P(crc_stdout, PSTR("last_time_rem=%hhu\n"), last_measurement_clock.rem); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
317 fprintf_P(crc_stdout, PSTR("comms_time=%lu\n"), last_comms_clock.ticks); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
318 fprintf_P(crc_stdout, PSTR("comms_time_rem=%hhu\n"), last_comms_clock.rem); |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
319 fprintf_P(crc_stdout, PSTR("voltage=%hu\n"), adc_vcc()); |
393 | 320 fprintf_P(crc_stdout, PSTR("measure=%hu\n"), measure_wake); |
321 fprintf_P(crc_stdout, PSTR("comms=%hu\n"), comms_wake); | |
322 fprintf_P(crc_stdout, PSTR("wake=%hhu\n"), wake_secs); | |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
323 fprintf_P(crc_stdout, PSTR("tick_secs=%d\n"), TICK); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
324 fprintf_P(crc_stdout, PSTR("tick_wake=%d\n"), SLEEP_COMPARE); |
393 | 325 fprintf_P(crc_stdout, PSTR("maxsens=%hhu\n"), MAX_SENSORS); |
326 fprintf_P(crc_stdout, PSTR("totalmeas=%hu\n"), TOTAL_MEASUREMENTS); | |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
327 fprintf_P(crc_stdout, PSTR("sensors=%hhu\n"), n_sensors); |
321
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
328 for (uint8_t s = 0; s < n_sensors; s++) |
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
329 { |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
330 fprintf_P(crc_stdout, PSTR("sensor_id%hhu="), s); |
382
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
331 printhex(sensor_id[s], ID_LEN, crc_stdout); |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
332 fputc('\n', crc_stdout); |
321
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
333 } |
341
ccab04e2f601
- decrease measurement interval, measure at start
Matt Johnston <matt@ucc.asn.au>
parents:
339
diff
changeset
|
334 fprintf_P(crc_stdout, PSTR("measurements=%hu\n"), n_measurements); |
320 | 335 for (uint16_t n = 0; n < n_measurements; n++) |
306 | 336 { |
352
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
337 fprintf_P(crc_stdout, PSTR("meas%hu="), n); |
321
df7384336798
Add shutdown handling, print sensors in "fetch" output
Matt Johnston <matt@ucc.asn.au>
parents:
320
diff
changeset
|
338 for (uint8_t s = 0; s < n_sensors; s++) |
319 | 339 { |
386 | 340 fprintf_P(crc_stdout, PSTR(" %04hx"), get_measurement(s, n)); |
319 | 341 } |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
342 fputc('\n', crc_stdout); |
306 | 343 } |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
344 fprintf_P(crc_stdout, PSTR("END\n")); |
331
5de3fc71ce48
- Make the python work on openwrt
Matt Johnston <matt@ucc.asn.au>
parents:
330
diff
changeset
|
345 fprintf_P(stdout, PSTR("CRC=%hu\n"), crc_out); |
306 | 346 } |
347 | |
348 static void | |
349 cmd_clear() | |
350 { | |
313 | 351 n_measurements = 0; |
338 | 352 printf_P(PSTR("cleared\n")); |
306 | 353 } |
354 | |
355 static void | |
356 cmd_btoff() | |
357 { | |
399
744c3c7eb09d
don't reset the wake time when btoff happens
Matt Johnston <matt@ucc.asn.au>
parents:
396
diff
changeset
|
358 uint8_t rem; |
744c3c7eb09d
don't reset the wake time when btoff happens
Matt Johnston <matt@ucc.asn.au>
parents:
396
diff
changeset
|
359 uint16_t count_copy; |
365 | 360 ATOMIC_BLOCK(ATOMIC_RESTORESTATE) |
361 { | |
399
744c3c7eb09d
don't reset the wake time when btoff happens
Matt Johnston <matt@ucc.asn.au>
parents:
396
diff
changeset
|
362 count_copy = comms_count; |
744c3c7eb09d
don't reset the wake time when btoff happens
Matt Johnston <matt@ucc.asn.au>
parents:
396
diff
changeset
|
363 rem = TCNT2; |
365 | 364 } |
399
744c3c7eb09d
don't reset the wake time when btoff happens
Matt Johnston <matt@ucc.asn.au>
parents:
396
diff
changeset
|
365 printf_P(PSTR("next_wake=%hu,"), comms_wake-count_copy); |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
366 printf_P(PSTR("rem=%hhu,"), rem); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
367 printf_P(PSTR("tick_secs=%hhu,"), TICK); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
368 printf_P(PSTR("tick_wake=%hhu\n"), SLEEP_COMPARE); |
352
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
369 _delay_ms(100); |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
370 comms_timeout = 0; |
306 | 371 } |
372 | |
373 static void | |
360
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
374 cmd_reset() |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
375 { |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
376 printf_P(PSTR("reset\n")); |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
377 _delay_ms(100); |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
378 cli(); // disable interrupts |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
379 wdt_enable(WDTO_15MS); // enable watchdog |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
380 while(1); // wait for watchdog to reset processor |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
381 } |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
382 |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
383 static void |
318 | 384 cmd_measure() |
385 { | |
339
449272fc63a3
- Debug log file for server
Matt Johnston <matt@ucc.asn.au>
parents:
338
diff
changeset
|
386 printf_P(PSTR("measuring\n")); |
318 | 387 need_measurement = 1; |
388 } | |
389 | |
390 static void | |
391 cmd_sensors() | |
392 { | |
393 uint8_t ret = simple_ds18b20_start_meas(NULL); | |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
394 printf_P(PSTR("All sensors, ret %hhu, waiting...\n"), ret); |
320 | 395 long_delay(DS18B20_TCONV_12BIT); |
318 | 396 simple_ds18b20_read_all(); |
397 } | |
398 | |
319 | 399 static void |
382
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
400 init_sensors() |
319 | 401 { |
347 | 402 uint8_t id[OW_ROMCODE_SIZE]; |
382
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
403 printf_P(PSTR("init sensors\n")); |
319 | 404 ow_reset(); |
347 | 405 for( uint8_t diff = OW_SEARCH_FIRST; diff != OW_LAST_DEVICE; ) |
406 { | |
407 diff = ow_rom_search( diff, &id[0] ); | |
408 if( diff == OW_PRESENCE_ERR ) { | |
409 printf_P( PSTR("No Sensor found\r") ); | |
410 return; | |
411 } | |
412 | |
413 if( diff == OW_DATA_ERR ) { | |
414 printf_P( PSTR("Bus Error\r") ); | |
415 return; | |
416 } | |
382
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
417 |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
418 if (n_sensors < MAX_SENSORS) |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
419 { |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
420 memcpy(sensor_id[n_sensors], id, ID_LEN); |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
421 printf_P(PSTR("Added sensor %hhu : "), n_sensors); |
382
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
422 printhex(id, ID_LEN, stdout); |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
423 putchar('\n'); |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
424 n_sensors++; |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
425 } |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
426 else |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
427 { |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
428 printf_P(PSTR("Too many sensors\n")); |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
429 } |
319 | 430 } |
386 | 431 |
432 max_measurements = TOTAL_MEASUREMENTS / n_sensors; | |
433 } | |
434 | |
435 static void | |
436 load_params() | |
437 { | |
438 uint16_t magic; | |
439 eeprom_read(magic, magic); | |
440 if (magic == EXPECT_MAGIC) | |
441 { | |
442 eeprom_read(measure_wake, measure_wake); | |
443 eeprom_read(comms_wake, comms_wake); | |
444 eeprom_read(wake_secs, wake_secs); | |
445 } | |
446 } | |
447 | |
448 static void | |
449 cmd_get_params() | |
450 { | |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
451 printf_P(PSTR("measure %hu\n"), measure_wake); |
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
452 printf_P(PSTR("comms %hu\n"), comms_wake); |
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
453 printf_P(PSTR("wake %hhu\n"), wake_secs); |
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
454 printf_P(PSTR("tick %d\n"), TICK); |
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
455 printf_P(PSTR("sensors %hhu (%hhu)\n"), |
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
456 n_sensors, MAX_SENSORS); |
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
457 printf_P(PSTR("meas %hu (%hu)\n"), |
386 | 458 max_measurements, TOTAL_MEASUREMENTS); |
319 | 459 } |
460 | |
461 static void | |
386 | 462 cmd_set_params(const char *params) |
319 | 463 { |
386 | 464 uint16_t new_measure_wake; |
465 uint16_t new_comms_wake; | |
466 uint8_t new_wake_secs; | |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
467 int ret = sscanf_P(params, PSTR("%hu %hu %hhu"), |
386 | 468 &new_measure_wake, &new_comms_wake, &new_wake_secs); |
469 | |
470 if (ret != 3) | |
319 | 471 { |
386 | 472 printf_P(PSTR("Bad values\n")); |
473 } | |
474 else | |
475 { | |
320 | 476 cli(); |
386 | 477 eeprom_write(new_measure_wake, measure_wake); |
478 eeprom_write(new_comms_wake, comms_wake); | |
479 eeprom_write(new_wake_secs, wake_secs); | |
480 uint16_t magic = EXPECT_MAGIC; | |
320 | 481 eeprom_write(magic, magic); |
482 sei(); | |
386 | 483 printf_P(PSTR("set_params for next boot\n")); |
387
1ee4485b59a2
try and be a bit more frugal with stack
Matt Johnston <matt@ucc.asn.au>
parents:
386
diff
changeset
|
484 printf_P(PSTR("measure %hu comms %hu wake %hhu\n"), |
386 | 485 new_measure_wake, new_comms_wake, new_wake_secs); |
319 | 486 } |
386 | 487 } |
488 | |
489 static void | |
490 cmd_awake() | |
491 { | |
492 stay_awake = 1; | |
493 printf_P(PSTR("awake\n")); | |
319 | 494 } |
495 | |
318 | 496 static void |
306 | 497 read_handler() |
498 { | |
312 | 499 if (strcmp_P(readbuf, PSTR("fetch")) == 0) |
306 | 500 { |
501 cmd_fetch(); | |
502 } | |
312 | 503 else if (strcmp_P(readbuf, PSTR("clear")) == 0) |
306 | 504 { |
505 cmd_clear(); | |
506 } | |
312 | 507 else if (strcmp_P(readbuf, PSTR("btoff")) == 0) |
306 | 508 { |
509 cmd_btoff(); | |
510 } | |
318 | 511 else if (strcmp_P(readbuf, PSTR("measure")) == 0) |
512 { | |
513 cmd_measure(); | |
514 } | |
515 else if (strcmp_P(readbuf, PSTR("sensors")) == 0) | |
516 { | |
517 cmd_sensors(); | |
518 } | |
386 | 519 else if (strcmp_P(readbuf, PSTR("get_params")) == 0) |
520 { | |
521 cmd_get_params(); | |
522 } | |
389 | 523 else if (strncmp_P(readbuf, PSTR("set_params "), 11) == 0) |
386 | 524 { |
389 | 525 cmd_set_params(&readbuf[11]); |
386 | 526 } |
527 else if (strcmp_P(readbuf, PSTR("awake")) == 0) | |
528 { | |
529 cmd_awake(); | |
530 } | |
360
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
531 else if (strcmp_P(readbuf, PSTR("reset")) == 0) |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
532 { |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
533 cmd_reset(); |
5d86f1182f62
add "awake" and "reset" functions
Matt Johnston <matt@ucc.asn.au>
parents:
358
diff
changeset
|
534 } |
306 | 535 else |
536 { | |
389 | 537 printf_P(PSTR("Bad command '%s'\n"), readbuf); |
306 | 538 } |
539 } | |
540 | |
326
f6b5941b4c34
Untested - calculate crc in uart_putchar
Matt Johnston <matt@ucc.asn.au>
parents:
325
diff
changeset
|
541 ISR(INT0_vect) |
324 | 542 { |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
543 button_pressed = 1; |
330
7ac6b8846eea
- some fixes for server code
Matt Johnston <matt@ucc.asn.au>
parents:
328
diff
changeset
|
544 blink(); |
7ac6b8846eea
- some fixes for server code
Matt Johnston <matt@ucc.asn.au>
parents:
328
diff
changeset
|
545 _delay_ms(100); |
7ac6b8846eea
- some fixes for server code
Matt Johnston <matt@ucc.asn.au>
parents:
328
diff
changeset
|
546 blink(); |
324 | 547 } |
548 | |
549 | |
308 | 550 ISR(USART_RX_vect) |
306 | 551 { |
308 | 552 char c = UDR0; |
339
449272fc63a3
- Debug log file for server
Matt Johnston <matt@ucc.asn.au>
parents:
338
diff
changeset
|
553 #ifdef HAVE_UART_ECHO |
318 | 554 uart_putchar(c, NULL); |
339
449272fc63a3
- Debug log file for server
Matt Johnston <matt@ucc.asn.au>
parents:
338
diff
changeset
|
555 #endif |
328
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
556 if (c == '\r' || c == '\n') |
306 | 557 { |
328
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
558 if (readpos > 0) |
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
559 { |
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
560 readbuf[readpos] = '\0'; |
333
298e502fdcd4
Add some web server handling
Matt Johnston <matt@ucc.asn.au>
parents:
332
diff
changeset
|
561 have_cmd = 1; |
328
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
562 readpos = 0; |
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
563 } |
306 | 564 } |
565 else | |
566 { | |
567 readbuf[readpos] = c; | |
568 readpos++; | |
569 if (readpos >= sizeof(readbuf)) | |
570 { | |
571 readpos = 0; | |
572 } | |
573 } | |
574 } | |
575 | |
308 | 576 ISR(TIMER2_COMPA_vect) |
307 | 577 { |
320 | 578 TCNT2 = 0; |
386 | 579 measure_count += TICK; |
580 comms_count += TICK; | |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
581 |
386 | 582 clock_epoch += TICK; |
323 | 583 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
584 if (comms_timeout != 0) |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
585 { |
386 | 586 comms_timeout -= TICK; |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
587 } |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
588 |
386 | 589 if (measure_count >= measure_wake) |
307 | 590 { |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
591 measure_count = 0; |
307 | 592 need_measurement = 1; |
593 } | |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
594 |
386 | 595 if (comms_count >= comms_wake) |
347 | 596 { |
597 comms_count = 0; | |
598 need_comms = 1; | |
599 } | |
307 | 600 } |
601 | |
309 | 602 DWORD get_fattime (void) |
603 { | |
604 return 0; | |
605 } | |
606 | |
307 | 607 static void |
608 deep_sleep() | |
609 { | |
610 // p119 of manual | |
308 | 611 OCR2A = SLEEP_COMPARE; |
612 loop_until_bit_is_clear(ASSR, OCR2AUB); | |
307 | 613 |
614 set_sleep_mode(SLEEP_MODE_PWR_SAVE); | |
615 sleep_mode(); | |
616 } | |
617 | |
618 static void | |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
619 idle_sleep() |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
620 { |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
621 set_sleep_mode(SLEEP_MODE_IDLE); |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
622 sleep_mode(); |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
623 } |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
624 |
365 | 625 static uint16_t |
626 adc_vcc() | |
361
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
627 { |
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
628 PRR &= ~_BV(PRADC); |
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
629 |
368 | 630 // /16 prescaler |
361
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
631 ADCSRA = _BV(ADEN) | _BV(ADPS2); |
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
632 |
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
633 // set to measure 1.1 reference |
364 | 634 ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1); |
366 | 635 // average a number of samples |
636 uint16_t sum = 0; | |
637 uint8_t num = 0; | |
638 for (uint8_t n = 0; n < 20; n++) | |
365 | 639 { |
640 ADCSRA |= _BV(ADSC); | |
641 loop_until_bit_is_clear(ADCSRA, ADSC); | |
361
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
642 |
366 | 643 uint8_t low_11 = ADCL; |
644 uint8_t high_11 = ADCH; | |
645 uint16_t val = low_11 + (high_11 << 8); | |
312 | 646 |
366 | 647 if (n >= 4) |
648 { | |
649 sum += val; | |
650 num++; | |
651 } | |
652 } | |
653 ADCSRA = 0; | |
654 PRR |= _BV(PRADC); | |
312 | 655 |
386 | 656 //float res_volts = 1.1 * 1024 * num / sum; |
657 //return 1000 * res_volts; | |
658 return ((uint32_t)1100*1024*num) / sum; | |
312 | 659 } |
660 | |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
661 static void |
307 | 662 do_measurement() |
663 { | |
381
83c83014e5e3
report raw ds18b20 values instead
Matt Johnston <matt@ucc.asn.au>
parents:
368
diff
changeset
|
664 blink(); |
83c83014e5e3
report raw ds18b20 values instead
Matt Johnston <matt@ucc.asn.au>
parents:
368
diff
changeset
|
665 |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
666 /* Take the timer here since deep_sleep() below could take 6 seconds */ |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
667 get_epoch_ticks(&last_measurement_clock); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
668 if (n_measurements == 0) |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
669 { |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
670 first_measurement_clock = last_measurement_clock; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
671 } |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
672 |
361
cfcd200c69da
untested code to log voltage and internal temperature
Matt Johnston <matt@ucc.asn.au>
parents:
360
diff
changeset
|
673 simple_ds18b20_start_meas(NULL); |
365 | 674 // sleep rather than using a long delay |
675 deep_sleep(); | |
676 //_delay_ms(DS18B20_TCONV_12BIT); | |
319 | 677 |
386 | 678 if (n_measurements == max_measurements) |
319 | 679 { |
680 n_measurements = 0; | |
681 } | |
312 | 682 |
386 | 683 for (uint8_t s = 0; s < n_sensors; s++) |
319 | 684 { |
381
83c83014e5e3
report raw ds18b20 values instead
Matt Johnston <matt@ucc.asn.au>
parents:
368
diff
changeset
|
685 uint16_t reading; |
386 | 686 uint8_t ret = simple_ds18b20_read_raw(sensor_id[s], &reading); |
687 if (ret != DS18X20_OK) | |
319 | 688 { |
386 | 689 reading = VALUE_BROKEN; |
319 | 690 } |
386 | 691 set_measurement(s, n_measurements, reading); |
319 | 692 } |
328
46070aaf29ea
A bit of work on the server python
Matt Johnston <matt@ucc.asn.au>
parents:
326
diff
changeset
|
693 |
320 | 694 n_measurements++; |
307 | 695 } |
696 | |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
697 static void |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
698 do_comms() |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
699 { |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
700 get_epoch_ticks(&last_comms_clock); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
701 |
347 | 702 // turn on bluetooth |
330
7ac6b8846eea
- some fixes for server code
Matt Johnston <matt@ucc.asn.au>
parents:
328
diff
changeset
|
703 set_aux_power(1); |
395
f0ddb75bcf04
main.c : add a delay before turning on uart
Matt Johnston <matt@ucc.asn.au>
parents:
393
diff
changeset
|
704 // avoid receiving rubbish, perhaps |
f0ddb75bcf04
main.c : add a delay before turning on uart
Matt Johnston <matt@ucc.asn.au>
parents:
393
diff
changeset
|
705 _delay_ms(50); |
313 | 706 uart_on(); |
347 | 707 |
708 // write sd card here? same 3.3v regulator... | |
709 | |
386 | 710 for (comms_timeout = wake_secs; |
711 comms_timeout > 0 || stay_awake; | |
712 ) | |
347 | 713 { |
312 | 714 if (need_measurement) |
715 { | |
320 | 716 need_measurement = 0; |
312 | 717 do_measurement(); |
349 | 718 continue; |
312 | 719 } |
720 | |
333
298e502fdcd4
Add some web server handling
Matt Johnston <matt@ucc.asn.au>
parents:
332
diff
changeset
|
721 if (have_cmd) |
298e502fdcd4
Add some web server handling
Matt Johnston <matt@ucc.asn.au>
parents:
332
diff
changeset
|
722 { |
298e502fdcd4
Add some web server handling
Matt Johnston <matt@ucc.asn.au>
parents:
332
diff
changeset
|
723 have_cmd = 0; |
298e502fdcd4
Add some web server handling
Matt Johnston <matt@ucc.asn.au>
parents:
332
diff
changeset
|
724 read_handler(); |
349 | 725 continue; |
333
298e502fdcd4
Add some web server handling
Matt Johnston <matt@ucc.asn.au>
parents:
332
diff
changeset
|
726 } |
298e502fdcd4
Add some web server handling
Matt Johnston <matt@ucc.asn.au>
parents:
332
diff
changeset
|
727 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
728 // wait for commands from the master |
347 | 729 idle_sleep(); |
730 } | |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
731 |
312 | 732 uart_off(); |
352
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
733 // in case bluetooth takes time to flush |
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
734 _delay_ms(100); |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
735 set_aux_power(0); |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
736 } |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
737 |
313 | 738 static void |
739 blink() | |
740 { | |
741 PORT_LED &= ~_BV(PIN_LED); | |
315 | 742 _delay_ms(1); |
313 | 743 PORT_LED |= _BV(PIN_LED); |
744 } | |
745 | |
746 static void | |
747 long_delay(int ms) | |
748 { | |
749 int iter = ms / 100; | |
750 | |
751 for (int i = 0; i < iter; i++) | |
752 { | |
753 _delay_ms(100); | |
754 } | |
755 } | |
756 | |
314 | 757 ISR(BADISR_vect) |
758 { | |
320 | 759 //uart_on(); |
314 | 760 printf_P(PSTR("Bad interrupt\n")); |
761 } | |
762 | |
306 | 763 int main(void) |
764 { | |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
765 setup_chip(); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
766 blink(); |
315 | 767 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
768 set_aux_power(0); |
313 | 769 |
312 | 770 stdout = &mystdout; |
313 | 771 uart_on(); |
772 | |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
773 printf(PSTR("Started.\n")); |
319 | 774 |
386 | 775 load_params(); |
319 | 776 |
382
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
777 init_sensors(); |
f429169aa3cd
don't store sensors in eeprom, scan at startup instead
Matt Johnston <matt@ucc.asn.au>
parents:
381
diff
changeset
|
778 |
314 | 779 uart_off(); |
306 | 780 |
312 | 781 // turn off everything except timer2 |
352
99f8b97a9449
Use the PRR etc, set value to proper ones
Matt Johnston <matt@ucc.asn.au>
parents:
349
diff
changeset
|
782 PRR = _BV(PRTWI) | _BV(PRTIM0) | _BV(PRTIM1) | _BV(PRSPI) | _BV(PRUSART0) | _BV(PRADC); |
314 | 783 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
784 setup_tick_counter(); |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
785 |
318 | 786 sei(); |
314 | 787 |
331
5de3fc71ce48
- Make the python work on openwrt
Matt Johnston <matt@ucc.asn.au>
parents:
330
diff
changeset
|
788 need_comms = 1; |
341
ccab04e2f601
- decrease measurement interval, measure at start
Matt Johnston <matt@ucc.asn.au>
parents:
339
diff
changeset
|
789 need_measurement = 1; |
331
5de3fc71ce48
- Make the python work on openwrt
Matt Johnston <matt@ucc.asn.au>
parents:
330
diff
changeset
|
790 |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
791 for(;;) |
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
792 { |
396
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
793 if (button_pressed) |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
794 { |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
795 // debounce |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
796 _delay_ms(200); |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
797 need_comms = 1; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
798 comms_timeout = wake_secs; |
a17a5984116f
print the remainder of timers as well
Matt Johnston <matt@ucc.asn.au>
parents:
395
diff
changeset
|
799 button_pressed = 0; |
347 | 800 continue; |
307 | 801 } |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
802 |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
803 if (need_comms) |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
804 { |
322
840f51824254
untested, add comms timeout code
Matt Johnston <matt@ucc.asn.au>
parents:
321
diff
changeset
|
805 need_comms = 0; |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
806 do_comms(); |
347 | 807 continue; |
310
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
808 } |
0a64532c1de1
Fill out more main.c structure
Matt Johnston <matt@ucc.asn.au>
parents:
309
diff
changeset
|
809 |
402 | 810 if (need_measurement) |
811 { | |
812 need_measurement = 0; | |
813 do_measurement(); | |
814 continue; | |
815 } | |
816 | |
347 | 817 deep_sleep(); |
306 | 818 } |
318 | 819 |
306 | 820 return 0; /* never reached */ |
821 } |