diff --git a/interrupts/crc/lay1+2 copy.c b/interrupts/crc/lay1+2 copy.c
deleted file mode 100644
index c49e0175d00570bb7d382422e0f765761841f7b2..0000000000000000000000000000000000000000
--- a/interrupts/crc/lay1+2 copy.c
+++ /dev/null
@@ -1,219 +0,0 @@
-#define F_CPU 12000000UL
-#define BAUD 9600
-
-#include <stdio.h>
-#include <stdint.h>
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <util/setbaud.h>
-#include <util/atomic.h>
-
-#include "julart.h" // Uart Functions
-#include "crc.h" //crc implementation
-
-#define ATOMIC_BLOCK(type)
-#define ATOMIC_RESTORESTATE
-#define ATOMIC_FORCEON
-
-typedef unsigned char byte;
-typedef uint32_t uint32;
-
-#define MAXFRAMESIZE 257 //in byte
-
-// Init of Send-/Receive-Buffer
-byte send[MAXFRAMESIZE]= {0}; // 0xB3, 0x10 = 10110011, 00010000
-byte frame[MAXFRAMESIZE]; // 0 - Preambel, 1 to 4 - CRC checksum, 5 - size, 6 to n (n = max. 256) - Payload
-
-byte flag = 1;
-byte bufferIndex = 0; // Zählvariable für ISR
-byte sendIndex = 0;
-byte bitIndex = 7;
-byte readyToReceive = 0;
-byte readyToSend = 0;
-
-//frame = {0b01111110, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000001, 0b10110011};
-
-void delay(int ms){
- while(ms>0){
- _delay_ms(1);
- ms--;
- }
- return;
-}
-
-void fillSend (byte* payload, byte size){
- //payload padden (Preambel, crc berechnung, size, rückgabe, readyToSend)
-
- send[0] = 0b01111110;
-
- uint32_t checksum = crc_comp(payload, size);
- for(int i = 1; i < 5; i++){
- byte x = 32-i*8;
- send[i] = (byte)((checksum & ((uint32_t)(255) << (x))) >> x);
- }
- send[5] = size;
- for(int i = 6; i < size+5; i++){
- send[i]= payload[i-6];
- }
- readyToSend = 1;
-}
-
-
-/* Funktionsdeklarationen für Interruptsetups */
-void setup_Timer();
-void setup_PinC();
-
-int main(void){
- uart_init();
- //Init Input-/Output-Stream
- stdout = &uart_io;
- stdin = &uart_io;
-
- //Data Direction
- DDRD = 0x0;
- //PORTD = 0x10;
- DDRB = 0x38; //(00111000) --> output at B3, B4, B5
-
- /* Setup Interrupt */
- setup_Timer();
- setup_PinC();
- sei(); //set SREG (one)
-
- byte receiveIndex = 0;
- byte receivedFrame[MAXFRAMESIZE];
- byte sizeToReceive = MAXFRAMESIZE;
-
- while(1){
- if(!readyToSend){
- byte sizeToSend = 2;
- byte* payload = malloc(sizeToSend*sizeof(byte));
- payload[0] = 0xB3;
- payload[1] = 0x10;
- ATOMIC_BLOCK(ATOMIC_FORCEON){
- fillSend(payload, size);
- }
- }
- ATOMIC_BLOCK(ATOMIC_FORCEON){
- if(readyToReceive){
- switch(receiveIndex){
- case 0:
- if(frame[receiveIndex] != 0x7E) break;
- case 5:
- sizeToReceive = receivedFrame[5];
- receivedFrame = realloc (receivedFrame, sizeToReceive*sizeof(byte));
- case (sizeToReceive-1):
- if(!crc_check(receivedFrame, sizeToReceive)){
- puts("Fehler bei der Ãœbertragung durch CRC-Check festgestellt");
- }
- else{
- puts("Ãœbertragung erfolgreich abgeschlossen.");
- //Hier evtl. noch Speicherung und/oder Ausgabe einbauen.
- }
- receiveIndex = 0;
- break;
- default:
- if(bufferIndex != 0) receivedFrame[receiveIndex] = frame[bufferIndex-1];
- else receivedFrame[receiveIndex] = frame[sizeToReceive-1];
- receiveIndex++;
- }
- readyToReceive = 0;
- printf("Received: %d\n",receivedFrame[receiveIndex] );
-
- }
- }
- }
- return 0;
-}
-
-/*
- * Interrupt Service Routine using 16-Bit Timer
- */
-
- ISR(TIMER1_COMPA_vect){
- //Wenn flag gesetzt, sende Daten.
- if(flag){
- if(readyToSend){
- // i-te Ziffer vom Sendebuffer wird extrahiert
- byte bit = (send[sendIndex] & (1 << bitIndex)) >> bitIndex;
- if(bit) {
- PORTB |= (1 << PB5); //PB5 im PORTB setzen ()
- PORTB |= (1 << PB3); //PB3 setzen -> LED an
- }
- else {
- PORTB &= ~(1 << PB5); //PB5 im PORTB loeschen
- PORTB &= ~(1 << PB3); //PB3 löschen -> LED aus
- }
- if(bitIndex==0) sendIndex++;
- if(sendIndex==send[5]+5) sendIndex=0;
- }
- }
- else PORTB ^= (1 << PB4); //Clock Signal -> Pin Change Interrupt
- flag^=1;
-}
-
-/*
- * Interrupt Service Routine using Pin Change
- * PCINT2 covers PCINT[16...23]
- * PCINT20 -- PD4
- */
-
- ISR(PCINT2_vect){
-
- frame[bufferIndex] = (frame[bufferIndex] << 1) + ((PIND & (1 << PD5)) >> PD5);
- bitIndex--;
- if(bitIndex == 255) {
- if (bufferIndex == 0 && frame[bufferIndex] != 0x7E);
- else {
- if(bufferIndex != MAXFRAMESIZE-1) bufferIndex++;
- else bufferIndex = 0;
- readyToReceive = 1;
- }
- bitIndex=7;
- }
- //frame[bufferIndex] = (frame[bufferIndex] << 1) + ((PIND & (1 << PD5)) >> PD5);
- //received |= (PIND & (1 << PD5)) << bitIndex;
- //received = (received << 1) + ((PIND & ( 1 << PD5)) >> PD5);
-
-}
-
-
-/* Funktionen für das Einrichten von Interrupts */
-/* Timer Interrupt */
-void setup_Timer(){
- /* Output Compare Register
- * --> highest value can be FFFF because we have 16 bit available
- *
- * OCRn = [ (clock_speed / Prescaler_value) * Desired_time_in_Seconds ] - 1
- * = 12000000/256 * 0.5 - 1
- * = 23436 (DEC)
- * = 5B8C(HEX)
- */
- OCR1A = 0x5B8C;
- // If TCNTn == OCR1A a timer overflow occurs which can trigger an interrupt.
- TCCR1B |= (1 << WGM12);
-
- // Timer/Counter Interrupt Mask Register - set on compare match
- TIMSK1 |= (1 << OCIE1A);
-
- //Set prescaler to 256
- TCCR1B |= (1 << CS12);
-}
-
-/* Pin Change Interrupt */
-void setup_PinC(){
- // Enable checking PCMSK2
- PCICR |= (1 << PCIE2);
-
- // Clear Pin Change Interrupt Flag
- PCIFR |= 0x7;
-
- //Pin Change Interrupt enabled for Pin D4
- PCMSK2 |= (1 <<PCINT20);
-}
-
-/*
-* Quellen:
-* ========
-* [1] https://appelsiini.net/2011/simple-usart-with-avr-libc/
-*/