From 726a76eeffe70a3eb5593f21e353bc1df62348c3 Mon Sep 17 00:00:00 2001
From: 7u83 <7u83@mail.ru>
Date: Fri, 17 May 2024 23:49:24 +0200
Subject: [PATCH] Inital commit

---
 uart_init.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 uart_init.c

diff --git a/uart_init.c b/uart_init.c
new file mode 100644
index 0000000..ccd7fa7
--- /dev/null
+++ b/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;
+*/
+
+
+}
+
+