add examples

RTL00_SDKV35a/example_sources/log_uart_loopback/src/main.c

@@ -0,0 +1,46 @@
+/*
+ *  Routines to access hardware
+ *
+ *  Copyright (c) 2013 Realtek Semiconductor Corp.
+ *
+ *  This module is a confidential and proprietary property of RealTek and
+ *  possession or use of this module requires written permission of RealTek.
+ */
+
+#include "device.h"
+#include "log_uart_api.h"
+
+char buf[100]="Hello World!!\r\n";;
+log_uart_t uobj;
+
+int uart_scan (char *buf)
+{
+    int i;
+
+    for (i=0;i<100;i++) {
+        *(buf+i) = log_uart_getc(&uobj);
+        if ((*(buf+i) == 0x0A) || (*(buf+i) == 0x0D)) {
+            break;
+        }
+    }
+
+    return i;
+}
+
+void main(void)
+{
+    int ret;
+
+    log_uart_init(&uobj, 38400, 8, ParityNone, 1);
+    log_uart_send(&uobj, buf, _strlen(buf), 100);
+    
+    while (1) {
+//        ret = log_uart_recv(&uobj, buf, 100, 2000);
+        ret = uart_scan(buf);
+        log_uart_send(&uobj, buf, ret, 1000);
+        log_uart_putc(&uobj, 0x0A);
+        log_uart_putc(&uobj, 0x0D);
+    }
+}
+
+