Added explicit selection of interrupt driven uart

uart/main.cpp

@@ -208,7 +208,7 @@ void usartTestUsage()
 void newUartUsage()
 {
 	using config = uart::config<9600, uart::DataBits::EIGHT, uart::Parity::NONE, uart::StopBits::ONE>;
-	using uart0 = uart::hardware0<uart::Mode::ASYNCHRONOUS, config>;
+	using uart0 = uart::hardware0<uart::Mode::ASYNCHRONOUS, config, uart::Driven::INTERRUPT>;
 	using softuart = uart::software<io::P::B1, io::P::B2, config>;
 
 	uart::uart<uart0> serial;