1 files changed, 3 insertions, 2 deletions
diff --git a/mcu/ATtiny4313.h b/mcu/ATtiny4313.h
index 748f6ff..efbc01d 100644
--- a/mcu/ATtiny4313.h
+++ b/mcu/ATtiny4313.h
@@ -4,6 +4,7 @@
 #include <avr/io.h>
 
 // SPI USI
+#define MCUSUPPORT_USI
 #define DDR_USI     DDRB
 #define DD_DI       DDB5
 #define DD_DO       DDB6
@@ -12,5 +13,5 @@
 #define PORT_DI     PORTB5
 #define PORT_DO     PORTB6
 #define PORT_USCK   PORTB7
-
-// SPI USART
+// USART
+#define MCUSUPPORT_USART0