Inital commit

uart_init.c

@@ -0,0 +1,29 @@
+#include "mc8051fun.h"
+
+//#include <stc12.h>
+#include <at89c51ed2.h>
+
+void uart_init(long fosc, long baud)
+{
+	TMOD = 0;		/* Timer 1, 8-bit auto reload mode */
+	//   P_SW1 |= (1 << 6); // move UART1 pins -> P3_6:rxd, P3_7:txd
+	
+	// UART1 use Timer2
+//	T2L = (65536 - (fosc / 4 / baud)) & 0xFF;
+//	T2H = (65536 - (fosc / 4 / baud)) >> 8;
+
+	SM0 = 0;
+	SM1 = 1;	// serial mode 1: 8-bit async
+	AUXR |= 0x14;	// T2R: run T2, T2x12: T2 clk src sysclk/1
+	AUXR |= 0x01;	// S1ST2: T2 is baudrate generator
+	SCON = 0x50;  		
+
+/*    ES = 1;                     // enable uart1 interrupt
+    EA = 1;                     // enable interrupts
+    REN = 1;
+*/
+
+
+}
+
+