From 59d1e9856c190b1de5f750bd89e56f560014f364 Mon Sep 17 00:00:00 2001
From: Fredrik Tolf <fredrik@dolda2000.com>
Date: Fri, 15 Jun 2007 00:43:59 +0000
Subject: [PATCH] Added ZVD and Triac control.

---
 kokare.c | 50 +++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 41 insertions(+), 9 deletions(-)

diff --git a/kokare.c b/kokare.c
index 18379e9..81aab66 100644
--- a/kokare.c
+++ b/kokare.c
@@ -36,6 +36,7 @@ char ledc = 0;
 /* Timer */
 char of = 0;
 int oticks = 0;
+unsigned long mnow;
 /* Pulse counter */
 char pstate = 0;
 char pval = 0;
@@ -49,7 +50,12 @@ unsigned long tstart;
 unsigned long ttime;
 unsigned long ttimea = 10000;
 /* Zero-cross detector*/
+char zok = 0;
+unsigned long ztime;
 /* Triac */
+char trstate = 0;
+char tron = 0;
+unsigned short trdelay = 0;
 
 void init(void)
 {
@@ -63,7 +69,7 @@ void init(void)
      * B3..5 = ISP
      * B6..7 = CLK
      */
-    DDRB = 0x00;
+    DDRB = 0x30;
     PORTB = 0x07;
     PCMSK0 = 0x07;
     PCICR = 0x01;
@@ -160,20 +166,17 @@ void ledcycle(void)
 
 void tempcycle(void)
 {
-    unsigned long now;
-    
-    now = getticks();
     if(tstate == 0) {
 	if((PIND & 8) && (tlock == 0)) {
 	    PORTD |= 2;
-	    tstart = now;
+	    tstart = mnow;
 	    tstate = 1;
 	}
     } else if(tstate == 1) {
-	if(now - tstart > 1000) {
+	if(mnow - tstart > 1000) {
 	    PORTD &= ~2;
 	    tstate = 0;
-	    tstart = now;
+	    tstart = mnow;
 	}
     }
 }
@@ -187,6 +190,20 @@ void calcavg(void)
     }
 }
 
+void triaccycle(void)
+{
+    if(trstate == 0) {
+	if(tron && zok && (mnow > ztime + trdelay)) {
+	    PORTD |= 1;
+	    zok = 0;
+	    trstate = 1;
+	}
+    } else if(trstate == 1) {
+	PORTD &= ~1;
+	trstate = 0;
+    }
+}
+
 int main(void)
 {
     int cur;
@@ -195,10 +212,16 @@ int main(void)
     init();
     sei();
     display(0);
+
+    tron = 1;
+    trdelay = 5000;
+
     while(1) {
+	mnow = getticks();
 	ledcycle();
 	tempcycle();
 	calcavg();
+	triaccycle();
 
 	/*
 	  dsp[0] = bindisp((ttimea & 0xff00) >> 8);
@@ -207,6 +230,10 @@ int main(void)
 	/*
 	  disphex((ttimea & 0xff000) >> 12);
 	*/
+#if 1
+	/*
+	  Temp display
+	*/
 	if(ttimea < 20000) {
 	    display((ttimea / 100) % 100);
 	    dsp[0] |= SEGP;
@@ -215,8 +242,11 @@ int main(void)
 	} else {
 	    display(ttimea / 1000);
 	}
-
+#endif
+#if 0
 	/*
+	  Pulse counter display
+	*/
 	cur += pval;
 	pval = 0;
 	if(sstate == 2) {
@@ -233,12 +263,14 @@ int main(void)
 	} else {
 	    display(cur);
 	}
-	*/
+#endif
     }
 }
 
 ISR(SIG_INTERRUPT0)
 {
+    ztime = getticks();
+    zok = 1;
 }
 
 ISR(SIG_INTERRUPT1)
-- 
2.11.0