[bsp] add memory dump function

bsp/imxrt1052-evk/applications/mem_dump.c

+/*
+ * File      : clock.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-12-05     Tanek        first version
+ */
+
+#include <rtthread.h>
+
+static void mem_dump(uint32_t buffer, uint32_t length)
+{
+    uint32_t *buf = (uint32_t *)buffer;
+    int i;
+
+    for (i = 0; i < length / 4; i++)
+    {
+        rt_kprintf("0x%08X,", buf[i]);
+
+        if (i % 8 == 7)
+        {
+            rt_kprintf("\n");
+        }
+        else
+        {
+            rt_kprintf(" ");
+        }
+    }
+}
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+FINSH_FUNCTION_EXPORT(mem_dump, dump memory);
+#endif