clean up unused code

Programme/AVR/Loopback_single_AVR/avr_code/avr_code.ino

@@ -4,20 +4,24 @@
 
 int main(void) {
 
+  // enable serial port for output
   Serial.begin(9600);
+  // init hardware timer
   timer_init();
+  // init pin change interrupt
   init_pc();
 
-  
+
 
   // enable interrupts
   sei();
+  // start time measurement
   timer_start();
-  PORTA = 0xff; // set high
+  PORTA = 0xff; // trigger own interrupt
 
   // timer will be stopped in pc interrupt
 
   while(1) {
   }
-  
+
 }

Programme/AVR/Loopback_single_AVR/avr_code/pinchange.ino

@@ -6,16 +6,18 @@
 
 //initialize pin change interrupt and data directions
 inline void init_pc(void) {
-  // enable/ setup output port
+  // setup output ports
+  // toggle full port to not waste time on bit masking
   DDRA = 0xff; // all out
   PORTA = 0x00; // all low
 
-  // enable input port
+  // enable input port (Pinchange)
   // enable interrupt
   EICRA |= (1<<ISC30)|(1<<ISC31);
   EIMSK |= (1<<INT3);
 }
 
+// Interrupt handler
 ISR(INT3_vect) {
   Serial.println(timer_stop());
 }

Programme/AVR/Loopback_single_AVR/avr_code/timer_1.ino

@@ -26,19 +26,22 @@ inline void timer_start(void) {
   TCCR1B |= TIMER_MASK;
   //enable interrupts
   sei();
-  
+
 }
 
+// return current timer ticks
 inline uint32_t timer_ticks(void) {
   return TCNT1 ^ (overflow_count << 16);
 }
 
+// stop timer
 inline uint32_t timer_stop(void) {
   // stop timer clock
   TCCR1B &= ~(TIMER_MASK);
   return timer_ticks();
 }
 
+// count overflow to enlarge tier register in software
 ISR(TIMER1_OVF_vect) {
   overflow_count++;
 }

Programme/AVR/Timer_test_precision/avr_code/avr_code.ino

-#include "timer_1.h"
-#include "pinchange.h"
-#include <avr/io.h>
-
-int main(void) {
-
-  Serial.begin(9600);
-  timer_init();
-  init_pc();
-
-  
-
-  // enable interrupts
-  sei();
-  timer_start();
-  PORTA = 0xff; // set high
-
-  // timer will be stopped in pc interrupt
-
-  while(1) {
-  }
-  
-}

Programme/AVR/Timer_test_precision/avr_code/pinchange.h

-// all functions inline to save execution time
-
-inline void init_pc(void);

Programme/AVR/Timer_test_precision/avr_code/pinchange.ino

-// This module uses PIN CHANGE INTERRUPT INT3
-
-#include <avr/interrupt.h>
-#include <avr/io.h>
-#include "timer_1.h"
-
-//initialize pin change interrupt and data directions
-inline void init_pc(void) {
-  // enable/ setup output port
-  DDRA = 0xff; // all out
-  PORTA = 0x00; // all low
-
-  // enable input port
-  // enable interrupt
-  EICRA |= (1<<ISC30)|(1<<ISC31);
-  EIMSK |= (1<<INT3);
-}
-
-ISR(INT3_vect) {
-  Serial.println(timer_stop());
-}

Programme/AVR/Timer_test_precision/avr_code/timer_1.h

-// all functions inline to save execution time
-
-// initialize timer for time measurement
-inline void timer_init(void);
-
-// start time measurement
-inline void timer_start(void);
-
-// stop time measurement, return ticks
-inline uint32_t timer_stop(void);
-
-// get timer ticks
-inline uint32_t timer_ticks(void);

Programme/AVR/Timer_test_precision/avr_code/timer_1.ino

-// This module uses TIMER1 to keep track of time
-
-#include "timer_1.h"
-#include <avr/interrupt.h>
-
-uint32_t overflow_count;
-
-#define TIMER_MASK (1<<CS10)
-
-inline void timer_init(void) {
-  // enable overflow interrupt
-  TIMSK1 |= (1<<TOIE1);
-}
-
-inline void timer_start(void) {
-  //disable interrupts globally
-  cli();
-  //clear out timer counting register
-  TCNT1 = 0;
-  //clear overflow count
-  overflow_count = 0;
-  // set up clock source
-  // we have a 16MHz Clock
-  // and a 16 Bit timer
-  // Use a prescaler of 256 -> 16/256 = 62.5kHz
-  TCCR1B |= TIMER_MASK;
-  //enable interrupts
-  sei();
-  
-}
-
-inline uint32_t timer_ticks(void) {
-  return TCNT1 ^ (overflow_count << 16);
-}
-
-inline uint32_t timer_stop(void) {
-  // stop timer clock
-  TCCR1B &= ~(TIMER_MASK);
-  return timer_ticks();
-}
-
-ISR(TIMER1_OVF_vect) {
-  overflow_count++;
-}

Programme/AVR/old/Loopback_multi_AVR/replyer/avr_code/avr_code.ino

-#include "timer_1.h"
-#include "pinchange.h"
-#include <avr/io.h>
-
-int main(void) {
-  //init pin change interrupt
-  init_pc();
-  // enable interrupts
-  sei();
-
-  while(1) {
-  }
-  
-}

Programme/AVR/old/Loopback_multi_AVR/replyer/avr_code/pinchange.h

-// all functions inline to save execution time
-
-inline void init_pc(void);

Programme/AVR/old/Loopback_multi_AVR/replyer/avr_code/pinchange.ino

-// This module uses PIN CHANGE INTERRUPT INT3
-
-#include <avr/interrupt.h>
-#include <avr/io.h>
-#include "timer_1.h"
-
-//initialize pin change interrupt and data directions
-inline void init_pc(void) {
-  // enable/ setup output port
-  DDRA = 0xff; // all out
-  PORTA = 0x00; // all low
-
-  // enable input port
-  // enable interrupt
-  EICRA |= (1<<ISC30)|(1<<ISC31);
-  EIMSK |= (1<<INT3);
-}
-
-ISR(INT3_vect) {
-  //Set PORTA high
-  PORTA = 0xff;
-  //Disable for next run
-  PORTA = 0x00;
-}

Programme/AVR/old/Loopback_multi_AVR/replyer/avr_code/timer_1.h

-// all functions inline to save execution time
-
-// initialize timer for time measurement
-inline void timer_init(void);
-
-// start time measurement
-inline void timer_start(void);
-
-// stop time measurement, return ticks
-inline uint32_t timer_stop(void);
-
-// get timer ticks
-inline uint32_t timer_ticks(void);

Programme/AVR/old/Loopback_multi_AVR/replyer/avr_code/timer_1.ino

-// This module uses TIMER1 to keep track of time
-
-#include "timer_1.h"
-#include <avr/interrupt.h>
-
-uint32_t overflow_count;
-
-#define TIMER_MASK (1<<CS10)
-
-inline void timer_init(void) {
-  // enable overflow interrupt
-  TIMSK1 |= (1<<TOIE1);
-}
-
-inline void timer_start(void) {
-  //disable interrupts globally
-  cli();
-  //clear out timer counting register
-  TCNT1 = 0;
-  //clear overflow count
-  overflow_count = 0;
-  // set up clock source
-  // we have a 16MHz Clock
-  // and a 16 Bit timer
-  // Use a prescaler of 256 -> 16/256 = 62.5kHz
-  TCCR1B |= TIMER_MASK;
-  //enable interrupts
-  sei();
-  
-}
-
-inline uint32_t timer_ticks(void) {
-  return TCNT1 ^ (overflow_count << 16);
-}
-
-inline uint32_t timer_stop(void) {
-  // stop timer clock
-  TCCR1B &= ~(TIMER_MASK);
-  return timer_ticks();
-}
-
-ISR(TIMER1_OVF_vect) {
-  overflow_count++;
-}

Programme/AVR/old/Loopback_multi_AVR/sender_measurer/avr_code/avr_code.ino

-#include "timer_1.h"
-#include "pinchange.h"
-#include <avr/io.h>
-
-int main(void) {
-
-  Serial.begin(9600);
-  timer_init();
-  init_pc();
-
-  
-
-  // enable interrupts
-  sei();
-  timer_start();
-  PORTA = 0xff; // set high
-
-  // timer will be stopped in pc interrupt
-
-  while(1) {
-  }
-  
-}

Programme/AVR/old/Loopback_multi_AVR/sender_measurer/avr_code/pinchange.h

-// all functions inline to save execution time
-
-inline void init_pc(void);

Programme/AVR/old/Loopback_multi_AVR/sender_measurer/avr_code/pinchange.ino

-// This module uses PIN CHANGE INTERRUPT INT3
-
-#include <avr/interrupt.h>
-#include <avr/io.h>
-#include "timer_1.h"
-
-//initialize pin change interrupt and data directions
-inline void init_pc(void) {
-  // enable/ setup output port
-  DDRA = 0xff; // all out
-  PORTA = 0x00; // all low
-
-  // enable input port
-  // enable interrupt
-  EICRA |= (1<<ISC30)|(1<<ISC31);
-  EIMSK |= (1<<INT3);
-}
-
-ISR(INT3_vect) {
-  Serial.println(timer_stop());
-}

Programme/AVR/old/Loopback_multi_AVR/sender_measurer/avr_code/timer_1.h

-// all functions inline to save execution time
-
-// initialize timer for time measurement
-inline void timer_init(void);
-
-// start time measurement
-inline void timer_start(void);
-
-// stop time measurement, return ticks
-inline uint32_t timer_stop(void);
-
-// get timer ticks
-inline uint32_t timer_ticks(void);

Programme/AVR/old/Loopback_multi_AVR/sender_measurer/avr_code/timer_1.ino

-// This module uses TIMER1 to keep track of time
-
-#include "timer_1.h"
-#include <avr/interrupt.h>
-
-uint32_t overflow_count;
-
-#define TIMER_MASK (1<<CS10)
-
-inline void timer_init(void) {
-  // enable overflow interrupt
-  TIMSK1 |= (1<<TOIE1);
-}
-
-inline void timer_start(void) {
-  //disable interrupts globally
-  cli();
-  //clear out timer counting register
-  TCNT1 = 0;
-  //clear overflow count
-  overflow_count = 0;
-  // set up clock source
-  // we have a 16MHz Clock
-  // and a 16 Bit timer
-  // Use a prescaler of 256 -> 16/256 = 62.5kHz
-  TCCR1B |= TIMER_MASK;
-  //enable interrupts
-  sei();
-  
-}
-
-inline uint32_t timer_ticks(void) {
-  return TCNT1 ^ (overflow_count << 16);
-}
-
-inline uint32_t timer_stop(void) {
-  // stop timer clock
-  TCCR1B &= ~(TIMER_MASK);
-  return timer_ticks();
-}
-
-ISR(TIMER1_OVF_vect) {
-  overflow_count++;
-}

Programme/CAN/errors/minimal_size/sender.can

@@ -7,28 +7,27 @@ includes
 variables
 {
   message 0x01 sendCAN;
-  int64 data1;
-  int64 data2;
-  int64 id1;
-  int64 id2;
   int count = 0, errcount=0, rcount = 0;
   char outbuf[20];
   msTimer t;
 }
 
+// send a can frame with random payload
 void sendCAN_f() {
   sendCAN.dlc = 1;
   sendCAN.byte(0) = random(255);
   output(sendCAN);
-  setTimer(t, 10);
+  setTimer(t, 10); // call timer to send the next one
   
 }
 
+// if necessary, send a frame
 on timer t {
   count++;
   if (count < 1024)
     sendCAN_f();
   if (count == 1024) {
+    // Measurement done, look at CANoes Error Trace to see how many errors occured
     write("done, check trace analysis");
   }
 }
@@ -37,13 +36,6 @@ on start {
   sendCAN_f();
 }
 
-on message CAN1.* {
-  data1 = this.byte(0);
-  id1 = this.id;
-}
-
 on message CAN2.* {
-  data2 = this.byte(0);
-  id1 = this.id;
   rcount++;
-}
+}
\ No newline at end of file