whatever

[svn42.git] / dart / dart.pde

diff --git a/dart/dart.pde b/dart/dart.pde
index 4c05548..2e5223e 100644 (file)
--- a/dart/dart.pde
+++ b/dart/dart.pde
@@ -12,6 +12,13 @@
 #define INPUT_SIG_PORTD B11000000
 #define INPUT_SIG_PORTB B00011111
 #define INPUT_SIG_PORTC B00010000
+
+#define OUTPUT_SIG_PORTB ( PINB_MASK & ~INPUT_SIG_PORTB )
+// B00011111 & ! B00011111 = 0
+#define OUTPUT_SIG_PORTC ( PINC_MASK & ~INPUT_SIG_PORTC )
+// B00011111 & ! B00010000 = B00001111
+#define OUTPUT_SIG_PORTD ( PIND_MASK & ~INPUT_SIG_PORTD )
+// B11111100 & ! B11000000 = 00111100
 union union16 {
   byte uint8[2];
   uint16_t uint16;
@@ -23,19 +30,14 @@ union union32 {
   uint32_t uint32;
 }; 
 
-
-//********************************************************************//
-
 typedef unsigned char byte;
 
-//********************************************************************//
-/*
 void start_timer()
 {
   // timer 1: 2 ms
   TCCR1A = 0;                    // prescaler 1:8, WGM = 4 (CTC)
-  TCCR1B = 1<<WGM12 | 1<<CS11;   // 
-  OCR1A = 159;        // (1+159)*8 = 1280 -> 0.08ms @ 16 MHz -> 1*alpha
+  TCCR1B = 1<<WGM12 | 1<<CS10  | 1<<CS11;    // 
+  OCR1A = 65000;        // (1+159)*8 = 1280 -> 0.08ms @ 16 MHz -> 1*alpha
 //  OCR1A = 207;        // (1+207)*8 = 1664 -> 0.104ms @ 16 MHz -> 1*alpha
   TCNT1 = 0;          // reseting timer
   TIMSK1 = 1<<OCIE1A; // enable Interrupt
@@ -47,48 +49,57 @@ void stop_timer() // stop the timer
   TCCR1B = 0; // no clock source
   TIMSK1 = 0; // disable timer interrupt
 }
-*/
-static void PCint(uint8_t port) {
-  Serial.println(port);
-  return;
-  union32 data;
-  data.uint32=0;
-  data.uint8[0]=PIND;
-  data.uint8[1]=PINC;
-  data.uint8[2]=PINB;
-  data.uint8[0]|= !PIND_MASK;
-  data.uint8[1]|= !PINC_MASK;
-  data.uint8[2]|= !PINB_MASK;
-  data.uint8[3]=0xff;
-  //PINS with signal:
-  //1
-  //3
-  //9
-  //14
-  //15
-  //21
-  //22
-  //23
-
-  for(int i=0;i<32; i++)
-  {
-    if (! (data.uint32 & 1 ))
-      Serial.println(i);
-    data.uint32>>=1;
-  }
-  //Serial.print(data.uint8[1]);
+
+ISR(TIMER1_COMPA_vect)
+{
+  stop_timer();
+  PCICR|= B111;
+}
+
+
+byte last_input=0;
+byte last_output=0;
+static void PCint() {
+  byte PINB_COPY = PINB;
+  byte PINC_COPY = PINC;
+  byte PIND_COPY = PIND;
+  byte output = ( OUTPUT_SIG_PORTC  & ~ PINC_COPY ) | (( OUTPUT_SIG_PORTD  & ~ PIND_COPY ) <<2 ); // no output on B 
+  byte input = ( INPUT_SIG_PORTB  & ~ PINB_COPY ) | ( ( INPUT_SIG_PORTC  & ~ PINC_COPY ) <<1 ) |( INPUT_SIG_PORTD  & ~ PIND_COPY );
+ 
+  if (!input)
+   return;
+  if (!output)
+   return;
+  //if (last_input==input && last_output==output)
+    //return;
+  last_input=input;
+  last_output=output;
+//  Serial.print(output,HEX);
+//  Serial.print('\t');
+//  Serial.print(input,HEX);
+//  Serial.print('\t');
+
+  byte value=0;
+  while(input>>=1)
+    value++;
+  value<<=3;
+  while(output>>=1)
+    value++;
+  Serial.println(value,HEX);
+  PCICR&=  ~ B111; // Disable Interrupt
+  start_timer();
 }
 
 
 
 SIGNAL(PCINT0_vect) {
-  PCint(0);
+  PCint();
 }
 SIGNAL(PCINT1_vect) {
-  PCint(1);
+  PCint();
 }
 SIGNAL(PCINT2_vect) {
-  PCint(2);
+  PCint();
 }
 void setup()
 {
@@ -109,7 +120,6 @@ void setup()
   PCMSK1=PINC_MASK & INPUT_SIG_PORTC;
   PCMSK2=PIND_MASK & INPUT_SIG_PORTD;
   PCICR|= B111;
-
 //  start_timer();
 }
 
@@ -121,6 +131,4 @@ void loop()
 {
 //  Serial.Serial.println("foo");
 //  return;
-
-
 }