add code folder - dont really know

code/inc/fifo.h

@@ -0,0 +1,20 @@
+#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

code/inc/uart.h

@@ -0,0 +1,15 @@
+#ifndef _UART_H_
+#define _UART_H_
+
+#include <avr/io.h>
+#include "fifo.h"
+
+extern Fifo_t uart0_rx_buffer;
+extern Fifo_t uart0_tx_buffer;
+
+
+void init_uart(void);
+//void putchar(char c);
+char get_uart0_char(void);
+
+#endif

code/inc/util.h

@@ -0,0 +1,12 @@
+#ifndef _UTIL_H_
+#define _UTIL_H_
+
+void delay(int ms);
+static void printchar(char **str, int c);
+static int prints(char **out, const char *string, int width, int pad);
+static int printi(char **out, int i, int b, int sg, int width, int pad, int letbase);
+static int print(char **out, int *varg);
+int printf(const char *format, ...);
+int sprintf(char *out, const char *format, ...);
+
+#endif