From e8126528825cb1bd01684f5bd6011fc7ae84bfe5 Mon Sep 17 00:00:00 2001
From: Josh Rahm <joshuarahm@gmail.com>
Date: Mon, 15 Jan 2018 15:26:48 -0700
Subject: added init routine that loads the data and bss sections into memory
 before executing main.

---
 system-clock/linker/linker_script.ld | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'system-clock/linker')

diff --git a/system-clock/linker/linker_script.ld b/system-clock/linker/linker_script.ld
index fe0c14b..b9a8d4b 100644
--- a/system-clock/linker/linker_script.ld
+++ b/system-clock/linker/linker_script.ld
@@ -1,6 +1,8 @@
 MEMORY
 {
   flash : org = 0x08000000, len = 256k
+  sram1 : org = 0x20000000, len = 48k
+  sram2 : org = 0x10000000, len = 16k
 }
 
 SECTIONS
@@ -11,4 +13,20 @@ SECTIONS
     *(.vectors); /* All .vector sections go here. */
     *(.text);    /* All .text sections go here. */
   } >flash
+
+  .data : {
+    /* Data segment as defined in the flash. */
+    INIT_DATA_VALUES = LOADADDR(.data);
+
+    /* Data segment where it will be in memory. */
+    DATA_SEGMENT_START = .;
+    *(.data);
+    DATA_SEGMENT_STOP = .;
+  } >sram1 AT>flash
+
+  BSS_START = .;
+  .bss : {
+    *(.bss);
+  } > sram1
+  BSS_END = .;
 }
-- 
cgit