diff --git a/newcode/fifo.c b/newcode/fifo.c
deleted file mode 100644
index d637a41..0000000
--- a/newcode/fifo.c
+++ /dev/null
@@ -1,39 +0,0 @@
-#include "fifo.h"
-
-uint8_t fifo_push(Fifo_t * fifo, uint8_t byte)
-{
-  //if (fifo.write >= FIFO_SIZE)
-  //  fifo.write = 0; // erhöht sicherheit
-  
-
-  if ( ( fifo->write + 1 == fifo->read ) ||
-       ( fifo->read == 0 && fifo->write + 1 == FIFO_SIZE ) )
-    return FIFO_FAIL; // voll
-
-  fifo->data[fifo->write] = byte;
-
-  fifo->write++;
-  if (fifo->write >= FIFO_SIZE)
-    fifo->write = 0;
-
-  return FIFO_SUCCESS;
-}
-
-uint8_t fifo_pop(Fifo_t * fifo, uint8_t *pByte)
-{
-  if (fifo->read == fifo->write){
-    return FIFO_FAIL;
-  }
-
-  *pByte = fifo->data[fifo->read];
-
-  fifo->read++;
-  if (fifo->read >= FIFO_SIZE)
-    fifo->read = 0;
-
-  return FIFO_SUCCESS;
-}
-
-uint8_t fifo_peek(Fifo_t * fifo){
-    return fifo->data[fifo->read];
-}
diff --git a/newcode/fifo.h b/newcode/fifo.h
deleted file mode 100644
index e1ad9d1..0000000
--- a/newcode/fifo.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _FIFO_H_
-#define _FIFO_H_
-
-#include <avr/io.h>
-
-#define FIFO_FAIL     0
-#define FIFO_SUCCESS  1
-
-#define FIFO_SIZE 128
-
-typedef struct {
-  uint8_t data[FIFO_SIZE];
-  uint8_t read; // zeigt auf das Feld mit dem ältesten Inhalt
-  uint8_t write; // zeigt immer auf leeres Feld
-} Fifo_t;
-
-uint8_t fifo_push(Fifo_t * fifo, uint8_t byte);
-uint8_t fifo_pop(Fifo_t * fifo, uint8_t *pByte);
-
-#endif
diff --git a/newcode/main.c b/newcode/main.c
index ba9c0bd..1def553 100644
--- a/newcode/main.c
+++ b/newcode/main.c
@@ -14,7 +14,7 @@
 #define ADC_0V_COUNT 170
 #define ADC_MAX_VOLT 1.95
 
-volatile uint16_t adc_buffer[AVRG];
+uint16_t adc_buffer[AVRG];
 volatile float ch_values[9];
 
 void init_clk(void)
@@ -114,7 +114,7 @@ void modbusGet(void) {
     {
         switch(rxbuffer[1]) {
             case fcReadHoldingRegisters: ;
-                modbusExchangeRegisters(ch_values, 0, 18);
+                modbusExchangeRegisters((uint16_t*)ch_values, 0, 18);
                 break;
             default:
                 modbusSendException(ecIllegalFunction);
diff --git a/newcode/uart.c b/newcode/uart.c
deleted file mode 100644
index 7c49b24..0000000
--- a/newcode/uart.c
+++ /dev/null
@@ -1,72 +0,0 @@
-#include <avr/interrupt.h>
-#include "uart.h"
-#include "fifo.h"
-
-Fifo_t uart0_rx_buffer = {{}, 0, 0};
-Fifo_t uart0_tx_buffer = {{}, 0, 0};
-
-const uint16_t bsel = 208;
-const int8_t bscale = 0;
-
-//FILE uart_output = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
-
-void init_uart(void){
-    USARTD0_CTRLC= USART_CHSIZE0_bm | USART_CHSIZE1_bm;
-    //USARTD0_BAUDCTRLB = 0;
-    //USARTD0_BAUDCTRLA = 0;
-    USARTD0.BAUDCTRLA = bsel;
-    USARTD0.BAUDCTRLB = 0 | (bsel >> 8) | (bscale << USART_BSCALE0_bp);
-    USARTD0_CTRLB = USART_TXEN_bm | USART_RXEN_bm;
-
-    //USARTD0_CTRLA=USART_RXCINTLVL0_bm;
-
-    PORTD_OUTSET = PIN3_bm;
-    PORTD_DIRSET = PIN3_bm; 
-    PORTD_OUTCLR = PIN2_bm;
-    PORTD_DIRCLR = PIN2_bm;
-
-    //stdout = &uart_output;
-}
-
-void uart_putchar(char c, FILE *stream)
-{
-    fifo_push(&uart0_tx_buffer, c);
-    USARTD0_CTRLA |= USART_DREINTLVL_LO_gc;
-}
-
-//void puts(char * s){
-//    while (*s) {
-//        putchar(*s++);
-//    }
-//}
-
-char get_uart0_char(void)
-{
-    while(1){
-        char buffer;	
-
-        while( !(USARTD0_STATUS & USART_RXCIF_bm) );
-        buffer=USARTD0_DATA;	
-        if ((USARTD0_STATUS & (USART_FERR_bm | USART_PERR_bm | USART_BUFOVF_bm))==0)
-            return buffer;
-    }
-}
-
-ISR(USARTD0_RXC_vect)
-{
-    uint8_t tmp = get_uart0_char();
-    putchar(tmp);
-    if(( tmp == 0x0D || tmp == 0x0A))
-        printf("wurst\n\r");
-    else
-        fifo_push(&uart0_rx_buffer, tmp);
-}
-
-ISR(USARTD0_DRE_vect){
-    uint8_t tmp;
-    if(fifo_pop(&uart0_tx_buffer, &tmp) == FIFO_SUCCESS){
-        USARTD0_DATA = tmp;
-    } else {
-        USARTD0_CTRLA &= ~USART_DREINTLVL_LO_gc;
-    }
-}
diff --git a/newcode/uart.h b/newcode/uart.h
deleted file mode 100644
index 82804f1..0000000
--- a/newcode/uart.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef _UART_H_
-#define _UART_H_
-
-#include <stdio.h>
-#include "fifo.h"
-
-extern Fifo_t uart0_rx_buffer;
-extern Fifo_t uart0_tx_buffer;
-
-
-void init_uart(void);
-void uart_putchar(char c, FILE *stream);
-char get_uart0_char(void);
-
-#endif