[kokare.git] / kokare.c

#include <avr/io.h>
#include <avr/interrupt.h>
#include <inttypes.h>
#include <math.h>

#define SEGA 4
#define SEGB 2
#define SEGC 1
#define SEGD 32
#define SEGE 64
#define SEGF 16
#define SEGG 8
#define SEGP 128

uint8_t font[16] = {
    SEGA | SEGB | SEGC | SEGD | SEGE | SEGF,
    SEGB | SEGC,
    SEGA | SEGB | SEGD | SEGE | SEGG,
    SEGA | SEGB | SEGC | SEGD | SEGG,
    SEGB | SEGC | SEGF | SEGG,
    SEGA | SEGC | SEGD | SEGF | SEGG,
    SEGA | SEGC | SEGD | SEGE | SEGF | SEGG,
    SEGA | SEGB | SEGC,
    SEGA | SEGB | SEGC | SEGD | SEGE | SEGF | SEGG,
    SEGA | SEGB | SEGC | SEGD | SEGF | SEGG,
    SEGA | SEGB | SEGC | SEGE | SEGF | SEGG,
    SEGC | SEGD | SEGE | SEGF | SEGG,
    SEGA | SEGD | SEGE | SEGF,
    SEGB | SEGC | SEGD | SEGE | SEGG,
    SEGA | SEGD | SEGE | SEGF | SEGG,
    SEGA | SEGE | SEGF | SEGG,
};
/* LED */
#define LCDELAY 1000
uint8_t dsp[2] = {0, 0};
char leda = 0;
char ledc = 0;
/* Timer */
volatile char of = 0;
volatile int oticks = 0;
unsigned long mnow;
/* Pulse counter */
volatile char pstate = 0;
char pval = 0;
/* Switch */
volatile char sstate = 0;
int stime = 0;
/* Temp sensor */
volatile char tstate = 0;
volatile char tlock = 0;
unsigned long tstart;
unsigned long ttime;
unsigned long ttimea = 10000;
char tavgok = 0;
/* Conversion loop */
int tempk;
volatile ktok = 0;
/* Zero-cross detector*/
volatile char zok = 0;
unsigned long ztime;
/* Triac */
char trstate = 0;
char tron = 0;
unsigned long trtime;
unsigned short trdelay = 0;

void init(void)
{
    /* Timer init */
    TCCR1A = 0;
    TCCR1B = 1;
    TIMSK1 = 1;
    
    /*
     * B0..2 = Pulse sensor
     * B3..5 = ISP
     * B6..7 = CLK
     */
    DDRB = 0x38;
    PORTB = 0x07;
    PCMSK0 = 0x07;
    PCICR = 0x01;
    /*
     * C0..5 = LEDA0..5
     * C6 = /RESET
     * C7 = NC
     */
    DDRC = 0x3f;
    PORTC = 0x00;
    /*
     * D0 = Triac
     * D1 = NTC FET
     * D2 = ZCD (INT0)
     * D3 = NTC Op-amp (INT1)
     * D4..5 = LEDA6..7
     * D6..7 = LEDC0..1
     */
    DDRD = 0xf3;
    PORTD = 0x00;
    EICRA = 0x0d;
    EIMSK = 0x03;
}

unsigned char bindisp(unsigned char num)
{
    unsigned char ret;
    
    ret = 0;
    if(num & 1)
	ret |= SEGA;
    if(num & 2)
	ret |= SEGB;
    if(num & 4)
	ret |= SEGC;
    if(num & 8)
	ret |= SEGD;
    if(num & 16)
	ret |= SEGE;
    if(num & 32)
	ret |= SEGF;
    if(num & 64)
	ret |= SEGG;
    if(num & 128)
	ret |= SEGP;
    return(ret);
}

void display(char num)
{
    dsp[0] = font[(num / 10) % 10];
    dsp[1] = font[num % 10];
}

void disphex(unsigned char num)
{
    dsp[0] = font[(num & 0xf0) >> 4];
    dsp[1] = font[num & 0x0f];
}

unsigned long getticks(void)
{
    return(TCNT1 + (((unsigned long)oticks) << 16));
}

void ledcycle(void)
{
    static uint16_t last = 0;
    uint8_t c, d, v;
    
    if(TCNT1 - last > LCDELAY) {
	last = TCNT1;
	if(++leda >= 8) {
	    leda = 0;
	    if(++ledc >= 2)
		ledc = 0;
	}
	if(dsp[ledc] & (1 << leda)) {
	    if(leda < 6) {
		c = 1 << leda;
		d = 0;
	    } else {
		c = 0;
		d = 0x10 << (leda - 6);
	    }
	    d |= ledc?0x40:0x80;
	} else {
	    c = d = 0;
	}
	PORTC = c;
	PORTD = (PORTD & 0x0f) | d;
    }
}

void tempcycle(void)
{
    if(tstate == 0) {
	if((PIND & 8) && (tlock == 0)) {
	    PORTD |= 2;
	    tstart = mnow;
	    tstate = 1;
	}
    } else if(tstate == 1) {
	if(mnow - tstart > 1000) {
	    PORTD &= ~2;
	    tstate = 0;
	    tstart = mnow;
	}
    }
}

void calcavg(void)
{
    if(tlock == 1) {
	tlock = 2;
	ttimea = ((ttimea * 15) + ttime) >> 4;
	tlock = 0;
	tavgok = 1;
    }
}

void convcycle(void)
{
    static char state = 0;
    static unsigned long last = 0;
    static float a, ra, l, t;
    
    /*
     * Theoretically:
     *  t = RC * ln(2) => R = t / (C * ln(2))
     *  R = A * exp(B / T) => T = B / ln(R / A)
     *  T = B / ln(R / (A * C * ln(2)))
     * In the following: 
     *  a = ttimea as float
     *  C = 1e6 / (A * C * ln(2))
     *  ra = a * C
     *  l = ln(ra)
     *  t = B / l
     * Note, temperature is in Kelvin
     */
#define C 9.792934
#define B 4020.0
    if(state == 0) {
	if((mnow - last > 200000) && tavgok) {
	    a = (float)ttimea;
	    state = 1;
	    tavgok = 0;
	}
    } else if(state == 1) {
	ra = a * C;
	state = 2;
    } else if(state == 2) {
	l = log(ra);
	state = 3;
    } else if(state == 3) {
	t = B / l;
	state = 4;
    } else if(state == 4) {
	tempk = (int)t;
	ktok = 1;
	state = 0;
    }
}

void triaccycle(void)
{
    if(trstate == 0) {
	if(tron && zok && (mnow > ztime + trdelay)) {
	    PORTD |= 1;
	    zok = 0;
	    trstate = 1;
	    trtime = mnow;
	}
    } else if(trstate == 1) {
	if(mnow > trtime + 500) {
	    PORTD &= ~1;
	    trstate = 0;
	}
    }
}

int main(void)
{
    int state, cur;
    unsigned long utime;
    
    state = 0;
    cur = 99;
    init();
    sei();
    display(0);

    while(1) {
	mnow = getticks();
	ledcycle();
	tempcycle();
	calcavg();
	convcycle();
	triaccycle();

#if 1
	/*
	 * User interface
	 */
	if(state == 0) {
	    /* Display temperature */
	    if(ktok) {
		ktok = 0;
		if((tempk >= 273) && (tempk <= 372)) {
		    display(tempk - 273);
		} else {
		    dsp[0] = dsp[1] = SEGG;
		}
	    }
	    if(pval != 0) {
		state = 1;
		utime = mnow;
	    }
	    if(sstate == 2) {
		sstate = 0;
		if(stime > 10) {
		    state = 2;
		} else {
		    tron = !tron;
		}
	    }
	} else if(state == 1) {
	    /* Triac control */
	    if(pval != 0) {
		cur += pval;
		pval = 0;
		if(cur < 0)
		    cur = 0;
		if(cur > 99)
		    cur = 99;
		display(cur);
		trdelay = 10000 - ((unsigned short)cur * 100);
		utime = mnow;
	    }
	    if(mnow - utime > 1000000) {
		state = 0;
	    }
	    if(sstate == 2) {
		tron = !tron;
		sstate = 0;
	    }
	} else if(state == 2) {
	    if(ttimea < 20000) {
		display((ttimea / 100) % 100);
		dsp[0] |= SEGP;
		if(ttimea >= 10000)
		    dsp[1] |= SEGP;
	    } else {
		display(ttimea / 1000);
	    }
	    if(sstate == 2) {
		state = 0;
		sstate = 0;
	    }
	}
#endif
	/*
	  dsp[0] = bindisp((ttimea & 0xff00) >> 8);
	  dsp[1] = bindisp(ttimea & 0x00ff);
	*/
	/*
	  disphex((ttimea & 0xff000) >> 12);
	*/
#if 0
	/*
	  Temp display
	*/
	if(ttimea < 20000) {
	    display((ttimea / 100) % 100);
	    dsp[0] |= SEGP;
	    if(ttimea >= 10000)
		dsp[1] |= SEGP;
	} else {
	    display(ttimea / 1000);
	}
#endif
#if 0
	/*
	 * ZVD debug
	 */
	if(zok) {
	    if(++cur > 99)
		cur = 0;
	    display(cur);
	    zok = 0;
	}
#endif
#if 0
	/*
	  Phony Triac control
	 */
	if(pval != 0) {
	    cur += pval;
	    if(cur < 0)
		cur = 0;
	    if(cur > 99)
		cur = 99;
	    display(cur);
	    trdelay = 10000 - ((unsigned short)cur * 100);
	    pval = 0;
	}
	if(sstate == 2) {
	    tron = !tron;
	    sstate = 0;
	}
	if(tron)
	    dsp[1] |= SEGP;
	else
	    dsp[1] &= ~SEGP;
#endif
#if 0
	/*
	  Pulse counter display
	*/
	cur += pval;
	pval = 0;
	if(sstate == 2) {
	    cur = stime;
	    sstate = 0;
	}
	if(cur > 99)
	    cur = 99;
	if(cur < -99)
	    cur = -99;
	if(cur < 0) {
	    display(-cur);
	    dsp[0] |= SEGP;
	} else {
	    display(cur);
	}
	if(PINB & 4)
	    dsp[1] |= SEGP;
#endif
    }
}

ISR(SIG_INTERRUPT0)
{
    ztime = getticks();
    zok = 1;
}

ISR(SIG_INTERRUPT1)
{
    unsigned long now;
    
    now = getticks();
    if(tstate == 0) {
	tstate = 1;
	if(tlock != 2)
	    ttime = now - tstart;
	tstart = now;
	PORTD |= 2;
	tlock = 1;
    }
}

ISR(SIG_OVERFLOW1)
{
    of = 1;
    oticks++;
}

ISR(SIG_PIN_CHANGE0)
{
    if((sstate == 0) && !(PINB & 4)) {
	stime = oticks;
	sstate = 1;
    }
    if((sstate == 1) && (PINB & 4)) {
	stime = oticks - stime;
	sstate = 2;
    }
    if(pstate == 0) {
	if((PINB & 2) == 0) {
	    pstate = 1;
	} else if((PINB & 1) == 0) {
	    pstate = 2;
	}
    } else if(pstate == 1) {
	if((PINB & 1) == 0) {
	    pval++;
	    pstate = 3;
	} else {
	    pstate = 0;
	}
    } else if(pstate == 2) {
	if((PINB & 2) == 0) {
	    pval--;
	    pstate = 3;
	} else {
	    pstate = 0;
	}
    } else {
	if((PINB & 2) && (PINB & 1))
	    pstate = 0;
    }
}
Commit	Line	Data
31415646 FT	1	#include <avr/io.h>
	2	#include <avr/interrupt.h>
	3	#include <inttypes.h>
2f37b902	4	#include <math.h>
31415646	5
2378926d FT	6	#define SEGA 4
	7	#define SEGB 2
	8	#define SEGC 1
	9	#define SEGD 32
	10	#define SEGE 64
	11	#define SEGF 16
	12	#define SEGG 8
	13	#define SEGP 128
31415646 FT	14
	15	uint8_t font[16] = {
	16	SEGA \| SEGB \| SEGC \| SEGD \| SEGE \| SEGF,
	17	SEGB \| SEGC,
	18	SEGA \| SEGB \| SEGD \| SEGE \| SEGG,
	19	SEGA \| SEGB \| SEGC \| SEGD \| SEGG,
	20	SEGB \| SEGC \| SEGF \| SEGG,
	21	SEGA \| SEGC \| SEGD \| SEGF \| SEGG,
	22	SEGA \| SEGC \| SEGD \| SEGE \| SEGF \| SEGG,
	23	SEGA \| SEGB \| SEGC,
	24	SEGA \| SEGB \| SEGC \| SEGD \| SEGE \| SEGF \| SEGG,
	25	SEGA \| SEGB \| SEGC \| SEGD \| SEGF \| SEGG,
	26	SEGA \| SEGB \| SEGC \| SEGE \| SEGF \| SEGG,
	27	SEGC \| SEGD \| SEGE \| SEGF \| SEGG,
	28	SEGA \| SEGD \| SEGE \| SEGF,
	29	SEGB \| SEGC \| SEGD \| SEGE \| SEGG,
	30	SEGA \| SEGD \| SEGE \| SEGF \| SEGG,
	31	SEGA \| SEGE \| SEGF \| SEGG,
	32	};
	33	/* LED */
2f37b902	34	#define LCDELAY 1000
31415646 FT	35	uint8_t dsp[2] = {0, 0};
	36	char leda = 0;
	37	char ledc = 0;
	38	/* Timer */
26e5097c FT	39	volatile char of = 0;
26e5097c FT	40	volatile int oticks = 0;
59d1e985	41	unsigned long mnow;
31415646	42	/* Pulse counter */
26e5097c	43	volatile char pstate = 0;
31415646 FT	44	char pval = 0;
31415646 FT	45	/* Switch */
26e5097c	46	volatile char sstate = 0;
31415646 FT	47	int stime = 0;
31415646 FT	48	/* Temp sensor */
26e5097c FT	49	volatile char tstate = 0;
26e5097c FT	50	volatile char tlock = 0;
31415646 FT	51	unsigned long tstart;
	52	unsigned long ttime;
	53	unsigned long ttimea = 10000;
c1346a55	54	char tavgok = 0;
2f37b902 FT	55	/* Conversion loop */
	56	int tempk;
	57	volatile ktok = 0;
31415646	58	/* Zero-cross detector*/
26e5097c	59	volatile char zok = 0;
59d1e985	60	unsigned long ztime;
31415646	61	/* Triac */
59d1e985 FT	62	char trstate = 0;
59d1e985 FT	63	char tron = 0;
495bea06	64	unsigned long trtime;
59d1e985	65	unsigned short trdelay = 0;
31415646 FT	66
	67	void init(void)
	68	{
	69	/* Timer init */
	70	TCCR1A = 0;
	71	TCCR1B = 1;
	72	TIMSK1 = 1;
	73
	74	/*
	75	* B0..2 = Pulse sensor
	76	* B3..5 = ISP
	77	* B6..7 = CLK
	78	*/
c1346a55	79	DDRB = 0x38;
31415646 FT	80	PORTB = 0x07;
	81	PCMSK0 = 0x07;
	82	PCICR = 0x01;
	83	/*
	84	* C0..5 = LEDA0..5
	85	* C6 = /RESET
	86	* C7 = NC
	87	*/
	88	DDRC = 0x3f;
	89	PORTC = 0x00;
	90	/*
	91	* D0 = Triac
	92	* D1 = NTC FET
	93	* D2 = ZCD (INT0)
	94	* D3 = NTC Op-amp (INT1)
	95	* D4..5 = LEDA6..7
	96	* D6..7 = LEDC0..1
	97	*/
	98	DDRD = 0xf3;
	99	PORTD = 0x00;
	100	EICRA = 0x0d;
	101	EIMSK = 0x03;
	102	}
	103
	104	unsigned char bindisp(unsigned char num)
	105	{
	106	unsigned char ret;
	107
	108	ret = 0;
	109	if(num & 1)
	110	ret \|= SEGA;
	111	if(num & 2)
	112	ret \|= SEGB;
	113	if(num & 4)
	114	ret \|= SEGC;
	115	if(num & 8)
	116	ret \|= SEGD;
	117	if(num & 16)
	118	ret \|= SEGE;
	119	if(num & 32)
	120	ret \|= SEGF;
	121	if(num & 64)
	122	ret \|= SEGG;
	123	if(num & 128)
	124	ret \|= SEGP;
	125	return(ret);
	126	}
	127
	128	void display(char num)
	129	{
	130	dsp[0] = font[(num / 10) % 10];
	131	dsp[1] = font[num % 10];
	132	}
	133
	134	void disphex(unsigned char num)
	135	{
	136	dsp[0] = font[(num & 0xf0) >> 4];
	137	dsp[1] = font[num & 0x0f];
	138	}
	139
	140	unsigned long getticks(void)
	141	{
	142	return(TCNT1 + (((unsigned long)oticks) << 16));
	143	}
144
145	void ledcycle(void)
146	{
147	static uint16_t last = 0;
148	uint8_t c, d, v;
149
2f37b902	150	if(TCNT1 - last > LCDELAY) {
31415646 FT	151	last = TCNT1;
	152	if(++leda >= 8) {
	153	leda = 0;
	154	if(++ledc >= 2)
	155	ledc = 0;
	156	}
	157	if(dsp[ledc] & (1 << leda)) {
	158	if(leda < 6) {
	159	c = 1 << leda;
	160	d = 0;
	161	} else {
	162	c = 0;
	163	d = 0x10 << (leda - 6);
	164	}
	165	d \|= ledc?0x40:0x80;
	166	} else {
	167	c = d = 0;
	168	}
	169	PORTC = c;
	170	PORTD = (PORTD & 0x0f) \| d;
	171	}
	172	}
	173
	174	void tempcycle(void)
	175	{
31415646 FT	176	if(tstate == 0) {
	177	if((PIND & 8) && (tlock == 0)) {
	178	PORTD \|= 2;
59d1e985	179	tstart = mnow;
31415646 FT	180	tstate = 1;
	181	}
	182	} else if(tstate == 1) {
59d1e985	183	if(mnow - tstart > 1000) {
31415646 FT	184	PORTD &= ~2;
31415646 FT	185	tstate = 0;
59d1e985	186	tstart = mnow;
31415646 FT	187	}
	188	}
	189	}
	190
	191	void calcavg(void)
	192	{
	193	if(tlock == 1) {
	194	tlock = 2;
	195	ttimea = ((ttimea * 15) + ttime) >> 4;
	196	tlock = 0;
c1346a55	197	tavgok = 1;
31415646 FT	198	}
	199	}
	200
2f37b902 FT	201	void convcycle(void)
	202	{
	203	static char state = 0;
	204	static unsigned long last = 0;
	205	static float a, ra, l, t;
	206
	207	/*
	208	* Theoretically:
	209	* t = RC * ln(2) => R = t / (C * ln(2))
	210	* R = A * exp(B / T) => T = B / ln(R / A)
	211	* T = B / ln(R / (A * C * ln(2)))
	212	* In the following:
	213	* a = ttimea as float
	214	* C = 1e6 / (A * C * ln(2))
	215	* ra = a * C
	216	* l = ln(ra)
	217	* t = B / l
	218	* Note, temperature is in Kelvin
	219	*/
	220	#define C 9.792934
	221	#define B 4020.0
	222	if(state == 0) {
	223	if((mnow - last > 200000) && tavgok) {
	224	a = (float)ttimea;
	225	state = 1;
	226	tavgok = 0;
	227	}
	228	} else if(state == 1) {
	229	ra = a * C;
	230	state = 2;
	231	} else if(state == 2) {
	232	l = log(ra);
	233	state = 3;
	234	} else if(state == 3) {
	235	t = B / l;
	236	state = 4;
	237	} else if(state == 4) {
	238	tempk = (int)t;
	239	ktok = 1;
	240	state = 0;
	241	}
	242	}
	243
59d1e985 FT	244	void triaccycle(void)
	245	{
	246	if(trstate == 0) {
	247	if(tron && zok && (mnow > ztime + trdelay)) {
	248	PORTD \|= 1;
	249	zok = 0;
	250	trstate = 1;
495bea06	251	trtime = mnow;
59d1e985 FT	252	}
59d1e985 FT	253	} else if(trstate == 1) {
495bea06 FT	254	if(mnow > trtime + 500) {
	255	PORTD &= ~1;
	256	trstate = 0;
	257	}
59d1e985 FT	258	}
	259	}
	260
31415646 FT	261	int main(void)
31415646 FT	262	{
c1346a55 FT	263	int state, cur;
c1346a55 FT	264	unsigned long utime;
31415646	265
c1346a55 FT	266	state = 0;
c1346a55 FT	267	cur = 99;
31415646 FT	268	init();
	269	sei();
	270	display(0);
59d1e985	271
31415646	272	while(1) {
59d1e985	273	mnow = getticks();
31415646 FT	274	ledcycle();
	275	tempcycle();
	276	calcavg();
2f37b902	277	convcycle();
59d1e985	278	triaccycle();
31415646	279
63e3aac7	280	#if 1
c1346a55 FT	281	/*
	282	* User interface
	283	*/
	284	if(state == 0) {
	285	/* Display temperature */
2f37b902 FT	286	if(ktok) {
	287	ktok = 0;
	288	if((tempk >= 273) && (tempk <= 372)) {
	289	display(tempk - 273);
c1346a55	290	} else {
2f37b902	291	dsp[0] = dsp[1] = SEGG;
c1346a55 FT	292	}
	293	}
	294	if(pval != 0) {
	295	state = 1;
	296	utime = mnow;
	297	}
2f37b902 FT	298	if(sstate == 2) {
	299	sstate = 0;
	300	if(stime > 10) {
	301	state = 2;
	302	} else {
	303	tron = !tron;
	304	}
	305	}
c1346a55 FT	306	} else if(state == 1) {
	307	/* Triac control */
	308	if(pval != 0) {
	309	cur += pval;
	310	pval = 0;
	311	if(cur < 0)
	312	cur = 0;
	313	if(cur > 99)
	314	cur = 99;
	315	display(cur);
	316	trdelay = 10000 - ((unsigned short)cur * 100);
	317	utime = mnow;
	318	}
	319	if(mnow - utime > 1000000) {
	320	state = 0;
	321	}
2f37b902 FT	322	if(sstate == 2) {
	323	tron = !tron;
	324	sstate = 0;
	325	}
	326	} else if(state == 2) {
	327	if(ttimea < 20000) {
	328	display((ttimea / 100) % 100);
	329	dsp[0] \|= SEGP;
	330	if(ttimea >= 10000)
	331	dsp[1] \|= SEGP;
	332	} else {
	333	display(ttimea / 1000);
	334	}
	335	if(sstate == 2) {
	336	state = 0;
	337	sstate = 0;
	338	}
c1346a55 FT	339	}
c1346a55 FT	340	#endif
31415646 FT	341	/*
	342	dsp[0] = bindisp((ttimea & 0xff00) >> 8);
	343	dsp[1] = bindisp(ttimea & 0x00ff);
	344	*/
	345	/*
	346	disphex((ttimea & 0xff000) >> 12);
	347	*/
495bea06	348	#if 0
59d1e985 FT	349	/*
	350	Temp display
	351	*/
31415646 FT	352	if(ttimea < 20000) {
	353	display((ttimea / 100) % 100);
	354	dsp[0] \|= SEGP;
	355	if(ttimea >= 10000)
	356	dsp[1] \|= SEGP;
	357	} else {
	358	display(ttimea / 1000);
	359	}
59d1e985	360	#endif
2378926d	361	#if 0
72ef9ac1 FT	362	/*
	363	* ZVD debug
	364	*/
	365	if(zok) {
	366	if(++cur > 99)
	367	cur = 0;
	368	display(cur);
	369	zok = 0;
	370	}
63e3aac7	371	#endif
c1346a55	372	#if 0
495bea06 FT	373	/*
	374	Phony Triac control
	375	*/
	376	if(pval != 0) {
	377	cur += pval;
	378	if(cur < 0)
	379	cur = 0;
	380	if(cur > 99)
	381	cur = 99;
	382	display(cur);
	383	trdelay = 10000 - ((unsigned short)cur * 100);
	384	pval = 0;
	385	}
	386	if(sstate == 2) {
	387	tron = !tron;
	388	sstate = 0;
	389	}
4f42f213 FT	390	if(tron)
	391	dsp[1] \|= SEGP;
	392	else
	393	dsp[1] &= ~SEGP;
495bea06	394	#endif
59d1e985	395	#if 0
31415646	396	/*
59d1e985 FT	397	Pulse counter display
59d1e985 FT	398	*/
31415646 FT	399	cur += pval;
	400	pval = 0;
	401	if(sstate == 2) {
	402	cur = stime;
	403	sstate = 0;
	404	}
	405	if(cur > 99)
	406	cur = 99;
	407	if(cur < -99)
	408	cur = -99;
	409	if(cur < 0) {
	410	display(-cur);
	411	dsp[0] \|= SEGP;
	412	} else {
	413	display(cur);
	414	}
4f42f213 FT	415	if(PINB & 4)
4f42f213 FT	416	dsp[1] \|= SEGP;
59d1e985	417	#endif
31415646 FT	418	}
	419	}
	420
	421	ISR(SIG_INTERRUPT0)
	422	{
59d1e985 FT	423	ztime = getticks();
59d1e985 FT	424	zok = 1;
31415646 FT	425	}
	426
	427	ISR(SIG_INTERRUPT1)
	428	{
	429	unsigned long now;
	430
	431	now = getticks();
	432	if(tstate == 0) {
	433	tstate = 1;
	434	if(tlock != 2)
	435	ttime = now - tstart;
	436	tstart = now;
	437	PORTD \|= 2;
	438	tlock = 1;
	439	}
	440	}
	441
	442	ISR(SIG_OVERFLOW1)
	443	{
	444	of = 1;
	445	oticks++;
	446	}
	447
	448	ISR(SIG_PIN_CHANGE0)
	449	{
4f42f213	450	if((sstate == 0) && !(PINB & 4)) {
31415646 FT	451	stime = oticks;
	452	sstate = 1;
	453	}
4f42f213	454	if((sstate == 1) && (PINB & 4)) {
31415646 FT	455	stime = oticks - stime;
	456	sstate = 2;
	457	}
	458	if(pstate == 0) {
	459	if((PINB & 2) == 0) {
	460	pstate = 1;
2378926d	461	} else if((PINB & 1) == 0) {
31415646 FT	462	pstate = 2;
	463	}
	464	} else if(pstate == 1) {
2378926d	465	if((PINB & 1) == 0) {
31415646 FT	466	pval++;
	467	pstate = 3;
	468	} else {
	469	pstate = 0;
	470	}
	471	} else if(pstate == 2) {
	472	if((PINB & 2) == 0) {
	473	pval--;
	474	pstate = 3;
	475	} else {
	476	pstate = 0;
	477	}
	478	} else {
2378926d	479	if((PINB & 2) && (PINB & 1))
31415646 FT	480	pstate = 0;
	481	}
	482	}