Commit | Line | Data |
---|---|---|
31415646 FT |
1 | #include <avr/io.h> |
2 | #include <avr/interrupt.h> | |
3 | #include <inttypes.h> | |
4 | ||
5 | #define SEGA 128 | |
6 | #define SEGB 64 | |
7 | #define SEGC 4 | |
8 | #define SEGD 16 | |
9 | #define SEGE 32 | |
10 | #define SEGF 2 | |
11 | #define SEGG 1 | |
12 | #define SEGP 8 | |
13 | ||
14 | uint8_t font[16] = { | |
15 | SEGA | SEGB | SEGC | SEGD | SEGE | SEGF, | |
16 | SEGB | SEGC, | |
17 | SEGA | SEGB | SEGD | SEGE | SEGG, | |
18 | SEGA | SEGB | SEGC | SEGD | SEGG, | |
19 | SEGB | SEGC | SEGF | SEGG, | |
20 | SEGA | SEGC | SEGD | SEGF | SEGG, | |
21 | SEGA | SEGC | SEGD | SEGE | SEGF | SEGG, | |
22 | SEGA | SEGB | SEGC, | |
23 | SEGA | SEGB | SEGC | SEGD | SEGE | SEGF | SEGG, | |
24 | SEGA | SEGB | SEGC | SEGD | SEGF | SEGG, | |
25 | SEGA | SEGB | SEGC | SEGE | SEGF | SEGG, | |
26 | SEGC | SEGD | SEGE | SEGF | SEGG, | |
27 | SEGA | SEGD | SEGE | SEGF, | |
28 | SEGB | SEGC | SEGD | SEGE | SEGG, | |
29 | SEGA | SEGD | SEGE | SEGF | SEGG, | |
30 | SEGA | SEGE | SEGF | SEGG, | |
31 | }; | |
32 | /* LED */ | |
33 | uint8_t dsp[2] = {0, 0}; | |
34 | char leda = 0; | |
35 | char ledc = 0; | |
36 | /* Timer */ | |
37 | char of = 0; | |
38 | int oticks = 0; | |
39 | /* Pulse counter */ | |
40 | char pstate = 0; | |
41 | char pval = 0; | |
42 | /* Switch */ | |
43 | char sstate = 0; | |
44 | int stime = 0; | |
45 | /* Temp sensor */ | |
46 | char tstate = 0; | |
47 | char tlock = 0; | |
48 | unsigned long tstart; | |
49 | unsigned long ttime; | |
50 | unsigned long ttimea = 10000; | |
51 | /* Zero-cross detector*/ | |
52 | /* Triac */ | |
53 | ||
54 | void init(void) | |
55 | { | |
56 | /* Timer init */ | |
57 | TCCR1A = 0; | |
58 | TCCR1B = 1; | |
59 | TIMSK1 = 1; | |
60 | ||
61 | /* | |
62 | * B0..2 = Pulse sensor | |
63 | * B3..5 = ISP | |
64 | * B6..7 = CLK | |
65 | */ | |
66 | DDRB = 0x00; | |
67 | PORTB = 0x07; | |
68 | PCMSK0 = 0x07; | |
69 | PCICR = 0x01; | |
70 | /* | |
71 | * C0..5 = LEDA0..5 | |
72 | * C6 = /RESET | |
73 | * C7 = NC | |
74 | */ | |
75 | DDRC = 0x3f; | |
76 | PORTC = 0x00; | |
77 | /* | |
78 | * D0 = Triac | |
79 | * D1 = NTC FET | |
80 | * D2 = ZCD (INT0) | |
81 | * D3 = NTC Op-amp (INT1) | |
82 | * D4..5 = LEDA6..7 | |
83 | * D6..7 = LEDC0..1 | |
84 | */ | |
85 | DDRD = 0xf3; | |
86 | PORTD = 0x00; | |
87 | EICRA = 0x0d; | |
88 | EIMSK = 0x03; | |
89 | } | |
90 | ||
91 | unsigned char bindisp(unsigned char num) | |
92 | { | |
93 | unsigned char ret; | |
94 | ||
95 | ret = 0; | |
96 | if(num & 1) | |
97 | ret |= SEGA; | |
98 | if(num & 2) | |
99 | ret |= SEGB; | |
100 | if(num & 4) | |
101 | ret |= SEGC; | |
102 | if(num & 8) | |
103 | ret |= SEGD; | |
104 | if(num & 16) | |
105 | ret |= SEGE; | |
106 | if(num & 32) | |
107 | ret |= SEGF; | |
108 | if(num & 64) | |
109 | ret |= SEGG; | |
110 | if(num & 128) | |
111 | ret |= SEGP; | |
112 | return(ret); | |
113 | } | |
114 | ||
115 | void display(char num) | |
116 | { | |
117 | dsp[0] = font[(num / 10) % 10]; | |
118 | dsp[1] = font[num % 10]; | |
119 | } | |
120 | ||
121 | void disphex(unsigned char num) | |
122 | { | |
123 | dsp[0] = font[(num & 0xf0) >> 4]; | |
124 | dsp[1] = font[num & 0x0f]; | |
125 | } | |
126 | ||
127 | unsigned long getticks(void) | |
128 | { | |
129 | return(TCNT1 + (((unsigned long)oticks) << 16)); | |
130 | } | |
131 | ||
132 | void ledcycle(void) | |
133 | { | |
134 | static uint16_t last = 0; | |
135 | uint8_t c, d, v; | |
136 | ||
137 | if(TCNT1 - last > 500) { | |
138 | last = TCNT1; | |
139 | if(++leda >= 8) { | |
140 | leda = 0; | |
141 | if(++ledc >= 2) | |
142 | ledc = 0; | |
143 | } | |
144 | if(dsp[ledc] & (1 << leda)) { | |
145 | if(leda < 6) { | |
146 | c = 1 << leda; | |
147 | d = 0; | |
148 | } else { | |
149 | c = 0; | |
150 | d = 0x10 << (leda - 6); | |
151 | } | |
152 | d |= ledc?0x40:0x80; | |
153 | } else { | |
154 | c = d = 0; | |
155 | } | |
156 | PORTC = c; | |
157 | PORTD = (PORTD & 0x0f) | d; | |
158 | } | |
159 | } | |
160 | ||
161 | void tempcycle(void) | |
162 | { | |
163 | unsigned long now; | |
164 | ||
165 | now = getticks(); | |
166 | if(tstate == 0) { | |
167 | if((PIND & 8) && (tlock == 0)) { | |
168 | PORTD |= 2; | |
169 | tstart = now; | |
170 | tstate = 1; | |
171 | } | |
172 | } else if(tstate == 1) { | |
173 | if(now - tstart > 1000) { | |
174 | PORTD &= ~2; | |
175 | tstate = 0; | |
176 | tstart = now; | |
177 | } | |
178 | } | |
179 | } | |
180 | ||
181 | void calcavg(void) | |
182 | { | |
183 | if(tlock == 1) { | |
184 | tlock = 2; | |
185 | ttimea = ((ttimea * 15) + ttime) >> 4; | |
186 | tlock = 0; | |
187 | } | |
188 | } | |
189 | ||
190 | int main(void) | |
191 | { | |
192 | int cur; | |
193 | ||
194 | cur = 0; | |
195 | init(); | |
196 | sei(); | |
197 | display(0); | |
198 | while(1) { | |
199 | ledcycle(); | |
200 | tempcycle(); | |
201 | calcavg(); | |
202 | ||
203 | /* | |
204 | dsp[0] = bindisp((ttimea & 0xff00) >> 8); | |
205 | dsp[1] = bindisp(ttimea & 0x00ff); | |
206 | */ | |
207 | /* | |
208 | disphex((ttimea & 0xff000) >> 12); | |
209 | */ | |
210 | if(ttimea < 20000) { | |
211 | display((ttimea / 100) % 100); | |
212 | dsp[0] |= SEGP; | |
213 | if(ttimea >= 10000) | |
214 | dsp[1] |= SEGP; | |
215 | } else { | |
216 | display(ttimea / 1000); | |
217 | } | |
218 | ||
219 | /* | |
220 | cur += pval; | |
221 | pval = 0; | |
222 | if(sstate == 2) { | |
223 | cur = stime; | |
224 | sstate = 0; | |
225 | } | |
226 | if(cur > 99) | |
227 | cur = 99; | |
228 | if(cur < -99) | |
229 | cur = -99; | |
230 | if(cur < 0) { | |
231 | display(-cur); | |
232 | dsp[0] |= SEGP; | |
233 | } else { | |
234 | display(cur); | |
235 | } | |
236 | */ | |
237 | } | |
238 | } | |
239 | ||
240 | ISR(SIG_INTERRUPT0) | |
241 | { | |
242 | } | |
243 | ||
244 | ISR(SIG_INTERRUPT1) | |
245 | { | |
246 | unsigned long now; | |
247 | ||
248 | now = getticks(); | |
249 | if(tstate == 0) { | |
250 | tstate = 1; | |
251 | if(tlock != 2) | |
252 | ttime = now - tstart; | |
253 | tstart = now; | |
254 | PORTD |= 2; | |
255 | tlock = 1; | |
256 | } | |
257 | } | |
258 | ||
259 | ISR(SIG_OVERFLOW1) | |
260 | { | |
261 | of = 1; | |
262 | oticks++; | |
263 | } | |
264 | ||
265 | ISR(SIG_PIN_CHANGE0) | |
266 | { | |
267 | if((sstate == 0) & ((PINB & 1) == 0)) { | |
268 | stime = oticks; | |
269 | sstate = 1; | |
270 | } | |
271 | if((sstate == 1) & ((PINB & 1) == 1)) { | |
272 | stime = oticks - stime; | |
273 | sstate = 2; | |
274 | } | |
275 | if(pstate == 0) { | |
276 | if((PINB & 2) == 0) { | |
277 | pstate = 1; | |
278 | } else if((PINB & 4) == 0) { | |
279 | pstate = 2; | |
280 | } | |
281 | } else if(pstate == 1) { | |
282 | if((PINB & 4) == 0) { | |
283 | pval++; | |
284 | pstate = 3; | |
285 | } else { | |
286 | pstate = 0; | |
287 | } | |
288 | } else if(pstate == 2) { | |
289 | if((PINB & 2) == 0) { | |
290 | pval--; | |
291 | pstate = 3; | |
292 | } else { | |
293 | pstate = 0; | |
294 | } | |
295 | } else { | |
296 | if((PINB & 2) && (PINB & 4)) | |
297 | pstate = 0; | |
298 | } | |
299 | } |