+tests

2313-avr-only-test/serial.h

@@ -0,0 +1,23 @@
+/* Optimized AVR305 half-duplex serial uart implementation
+ * timing for 81N, 115.2kbps @8Mhz = 69.4 cycles/bit
+ * and @16Mhz = 138.9 cycles/bit
+ * @author: Ralph Doncaster
+ * @version: $Id$
+ */
+
+
+#ifdef F_CPU
+  #define TXDELAY (((F_CPU/BAUD_RATE)-9)/3)
+#else
+  #error CPU frequency F_CPU undefined
+#endif
+
+#if TXDELAY > 255
+  #error low baud rates unsupported - use higher BAUD_RATE
+#endif
+
+void TxTimedByte(char, char);
+
+
+#define TxByte(C) TxTimedByte(C , TXDELAY)
+