2 files changed, 64 insertions, 0 deletions

diff --git a/src/inc/uart/uart.c b/src/inc/uart/uart.c
new file mode 100755
index 0000000..b2f1a59
--- /dev/null
+++ b/src/inc/uart/uart.c
@@ -0,0 +1,47 @@
+#include "uart.h"
+
+/// // UART-Receiver...
+/// ISR(USART_RXC_vect)
+/// {
+  /// unsigned char buffer;
+  /// buffer = UDR;
+  /// if(uart_string.size == -1) return;
+  /// if(buffer == '\n')
+  /// {
+    /// uart_string.data[uart_string.size] = '\0';
+    /// uart_string.size = -1;
+  /// }
+  /// else
+  /// {
+    /// uart_string.data[uart_string.size] = buffer;
+    /// if(++uart_string.size > STRING_SIZE)
+    /// { uart_string.size = 0; }
+  /// }
+/// }
+
+void uart_init()
+{
+  /// uart_string.size = 0;
+  /// uart_string.data[0] = '\0';
+
+  // activate UART TX // and RX...
+  UCSRB |= (1<<TXEN); // | (1<<RXEN) | (1<<RXCIE);
+  // Asynchron 8N1 ...
+  UCSRC |= (1<<URSEL) | (1<<UCSZ1) | (1<<UCSZ0);
+
+  UBRRH = UBRRH_VALUE;
+  UBRRL = UBRRL_VALUE;
+  #if USE_2X
+    UCSRA |= (1 << U2X);
+  #else
+    UCSRA &= ~(1 << U2X);
+  #endif
+}
+
+void uart_putc(char c)
+{
+  UDR = c; /* schreibt das Zeichen x auf die Schnittstelle */
+  loop_until_bit_is_set(UCSRA, UDRE);
+}
+
+
diff --git a/src/inc/uart/uart.h b/src/inc/uart/uart.h
new file mode 100755
index 0000000..6e24df5
--- /dev/null
+++ b/src/inc/uart/uart.h
@@ -0,0 +1,17 @@
+#ifndef UART_H
+#define UART_H
+  #include <util/setbaud.h>
+  #include <avr/interrupt.h>
+
+  /// #define STRING_SIZE 32
+  /// typedef struct
+  /// {
+    /// char data[STRING_SIZE];
+    /// int8_t size;
+  /// } string;
+  /// volatile string uart_string;
+
+  void uart_init();
+  void uart_putc(char c);
+
+#endif