diff --git a/B15F.elf b/B15F.elf
index 37e4da2..137fa90 100644
Binary files a/B15F.elf and b/B15F.elf differ
diff --git a/B15F.hex b/B15F.hex
index c69f038..068ce8e 100644
--- a/B15F.hex
+++ b/B15F.hex
@@ -8,14 +8,14 @@
 :100070000C9489000C9489000C9489000C948900DC
 :100080000C9489000C9489000C948900DF00E10035
 :10009000E300DA00E500E700E900EB00ED00EF0027
-:1000A000F100F300830480047D0459047A0477048A
-:1000B000740471046E046B046804860489041124BA
+:1000A000F100F3007E047B047804540475047204A8
+:1000B0006F046C04690466046304810484041124DD
 :1000C0001FBECFEFD0E4DEBFCDBF11E0A0E0B1E0B6
-:1000D000E6E7F9E000E00BBF02C007900D92A23006
+:1000D000ECE6F9E000E00BBF02C007900D92A23001
 :1000E000B107D9F721E0A2E0B1E001C01D92A4312F
 :1000F000B207E1F710E0CFE5D0E004C02197FE01A0
-:100100000E94B004CE35D107C9F70E9457040C9461
-:10011000B9040C9400001F920F920FB60F92112495
+:100100000E94AB04CE35D107C9F70E9452040C946B
+:10011000B4040C9400001F920F920FB60F9211249A
 :100120008F9388E4809360008F910F900FBE0F90A3
 :100130001F90189583E191E00E94F60060E080E155
 :1001400091E00E9439016FEF80E191E00E945A0135
@@ -24,11 +24,11 @@
 :1001700091E00E942F0282E091E00E942703789490
 :1001800098E088E10FB6F894A895809360000FBEC0
 :100190009093600088E480936000A895089582E0C1
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-:1001D00099030C94AC030C94B5030C94BE030C94DB
-:1001E000D1030C94E4030C94F203089584B1806B62
+:1001A00091E00E944A03A89590E0FC013197EC3061
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 :1001F00084B926988AB18C618AB980E58CBD81E08A
 :100200008DBD8BB1837E8BB95A9A5B9A5C9A0895A7
 :100210008BB1837E8BB98BB160FD10C090E0892BD0
@@ -98,57 +98,56 @@
 :100610000E94060280E191E00E94E001682F80E1E3
 :1006200091E00E947B018AE091E00E94E001682F46
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-:10096000EE0FFF1F0024001C0BBE0790F691E02D38
-:060970000994F894FFCF8A
-:0209760001007E
+:1006400078020E94A1020E94C6020E94EB0282E090
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 :00000001FF
diff --git a/usart.cpp b/usart.cpp
index 5ed1170..7c3ee84 100644
--- a/usart.cpp
+++ b/usart.cpp
@@ -2,32 +2,38 @@
 
 void USART::init()
 {
+	UCSR0A = _BV(U2X0);
+	
 	UCSR0B = _BV(RXEN0) | _BV(TXEN0);
 
 	// Einstellen des Datenformats: 8 Datenbits, 1 Stoppbit
 	UCSR0C = _BV(UCSZ00) |_BV(UCSZ01);// (1<<URSEL0)|(1<<UCSZ10)|(1<<UCSZ00);
 
 	// setze Baudrate
-	UBRR0H = (((F_CPU / (16UL * BAUDRATE))-1) >> 8) & 0xFF;
-	UBRR0L =  ((F_CPU / (16UL * BAUDRATE))-1) & 0xFF;
+	UBRR0H = (((F_CPU / (8UL * BAUDRATE))-1) >> 8) & 0xFF;
+	UBRR0L =  ((F_CPU / (8UL * BAUDRATE))-1) & 0xFF;
 
 }
 
 void USART::writeByte(uint8_t b)
 {
+	while (!(UCSR0A & (1<<UDRE0)));
 	UDR0 = b;
-	while(!(UCSR0A & _BV(TXC0)));
-	_delay_us(100);
+	
+	//while(!(UCSR0A & _BV(TXC0)));
 }
 
 
 void USART::writeInt(uint16_t v)
 {
+	while (!(UCSR0A & (1<<UDRE0)));
 	UDR0 = v & 0xFF;
+	
 	v >>= 8;
+	while (!(UCSR0A & (1<<UDRE0)));
 	UDR0 = v & 0xFF;
-	while(!(UCSR0A & _BV(TXC0)));
-	_delay_ms(1);
+	
+	//while(!(UCSR0A & _BV(TXC0)));
 }
 
 uint8_t USART::readByte()
diff --git a/usart.h b/usart.h
index 7aca473..f93ce0a 100644
--- a/usart.h
+++ b/usart.h
@@ -5,7 +5,7 @@
 #include <util/delay.h>
 #include <stdint.h>
 
-constexpr uint16_t BAUDRATE = 38400UL; //9600UL//9600
+constexpr uint32_t BAUDRATE = 115200; // 38400
 
 class USART
 {