add startup module

memory.x

@@ -0,0 +1,14 @@
+
+MEMORY {
+BOOT2 : ORIGIN = 0x10000000, LENGTH = 0x100
+FLASH : ORIGIN = 0x10000100, LENGTH = 2048K - 0x100
+RAM   : ORIGIN = 0x20000000, LENGTH = 256K
+}
+
+SECTIONS {
+/* ### Boot loader */
+.boot2 ORIGIN(BOOT2) :
+{
+KEEP(*(.boot2));
+} > BOOT2
+} INSERT BEFORE .text;