Added flushing of transmit buffer

2019-08-03 17:52:28 +02:00
parent b6c1c3b51b
commit 9f9f7a8de5
4 changed files with 39 additions and 1 deletions
--- a/hardware.hpp
+++ b/hardware.hpp
@@ -64,9 +64,14 @@ class Hardware {
 		return *Registers::IO_REG;
 	}

+	static bool txActive() FORCE_INLINE
+	{
+		return !(*Registers::CTRL_STAT_REG_A & (1 << CtrlFlagsA::DATA_REG_EMPTY));
+	}
+
 	static void txByteBlocking(const typename cfg::data_t &byte) FORCE_INLINE
 	{
-		while (!(*Registers::CTRL_STAT_REG_A & (1 << CtrlFlagsA::DATA_REG_EMPTY)))
+		while (txActive())
 			;

 		*Registers::IO_REG = byte;