exaples/softuart: add basic example for softuart

examples/softuart/main.c

@@ -0,0 +1,30 @@
+/*
+ * Softuart example
+ *
+ * Copyright (C) 2016 Bernhard Guillon <Bernhard.Guillon@web.de>
+ * Copyright (c) 2015 plieningerweb
+ *
+ * MIT Licensed as described in the file LICENSE
+ */
+#include <esp/gpio.h>
+#include <esp/uart.h>
+#include <espressif/esp_common.h>
+#include <stdio.h>
+#include "softuart/softuart.h"
+
+void user_init(void)
+{
+    // setup real UART for now
+    uart_set_baud(0, 115200);
+    printf("SDK version:%s\n\n", sdk_system_get_sdk_version());
+
+    // setup software rx to 9600 8n1
+    softuart_init(9600);
+
+    while (true)
+    {
+        if (!softuart_available())
+            continue;
+        printf("%c",softuart_read());
+    }
+}