diff --git a/application.c b/application.c
index 35a8371..c110a0a 100644
--- a/application.c
+++ b/application.c
@@ -31,7 +31,6 @@
 /* own libraries */
 #include "global.h" // board definitions
 #include "print.h" // printing utilities
-#include "uart.h" // USART utilities
 #include "usb_cdcacm.h" // USB CDC ACM utilities
 #include "terminal.h" // handle the terminal interface
 #include "menu.h" // menu utilities
@@ -281,12 +280,10 @@ size_t putc(char c)
 	static char last_c = 0; // to remember on which character we last sent
 	if ('\n' == c) { // send carriage return (CR) + line feed (LF) newline for each LF
 		if ('\r' != last_c) { // CR has not already been sent
-			uart_putchar_nonblocking('\r'); // send CR over USART
 			usb_cdcacm_putchar('\r'); // send CR over USB
 			length++; // remember we printed 1 character
 		}
 	}
-	uart_putchar_nonblocking(c); // send byte over USART
 	usb_cdcacm_putchar(c); // send byte over USB
 	length++; // remember we printed 1 character
 	last_c = c; // remember last character
@@ -812,7 +809,6 @@ void main(void)
 #endif
 
 	board_setup(); // setup board
-	uart_setup(); // setup USART (for printing)
 	usb_cdcacm_setup(); // setup USB CDC ACM (for printing)
 	OTG_FS_GCCFG |= OTG_GCCFG_NOVBUSSENS | OTG_GCCFG_PWRDWN; // disable VBUS sensing
 	OTG_FS_GCCFG &= ~(OTG_GCCFG_VBUSBSEN | OTG_GCCFG_VBUSASEN); // force USB device mode