建立工程，成功创建两个虚拟串口

source/rt_thread/libcpu/arm/common/showmem.c

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2008-07-29     Bernard      first version from QiuYi implementation
+ */
+
+#include <rtthread.h>
+
+void rt_hw_show_memory(rt_uint32_t addr, rt_uint32_t size)
+{
+    int i = 0, j =0;
+
+    RT_ASSERT(addr);
+
+    addr = addr & ~0xF;
+    size = 4*((size + 3)/4);
+
+    while(i < size)
+    {
+        rt_kprintf("0x%08x: ", addr );
+
+        for(j=0; j<4; j++)
+        {
+            rt_kprintf("0x%08x  ", *(rt_uint32_t *)addr);
+
+            addr += 4;
+            i++;
+        }
+
+        rt_kprintf("\n");
+    }
+
+    return;
+}