Implemented blocking rx

hardware.hpp

@@ -45,6 +45,16 @@ class Hardware {
 		*Registers::CTRL_STAT_REG_C = controlRegC;
 	}
 
+	static bool rxByteBlocking(typename cfg::data_t &byte) FORCE_INLINE
+	{
+		if (*Registers::CTRL_STAT_REG_A & (1 << CtrlFlagsA::RECEIVE_COMPLETE)) {
+			byte = *Registers::IO_REG;
+			return true;
+		}
+
+		return false;
+	}
+
 	static typename cfg::data_t rxByteInterrupt() FORCE_INLINE
 	{
 		return *Registers::IO_REG;

hardware0.hpp

@@ -98,7 +98,7 @@ class Hardware0 {
 
 	static bool rxByte(data_t &byte) FORCE_INLINE
 	{
-		return false;
+		return HardwareImpl::rxByteBlocking(byte);
 	}
 
 	static data_t peek() FORCE_INLINE {}

hardware1.hpp

@@ -102,7 +102,7 @@ class Hardware1 {
 
 	static bool rxByte(data_t &byte) FORCE_INLINE
 	{
-		return false;
+		return HardwareImpl::rxByteBlocking(byte);
 	}
 
 	static data_t peek() FORCE_INLINE {}