Diff: targets/cmsis/TARGET_NXP/TARGET_LPC82X/TOOLCHAIN_ARM_MICRO/sys.cpp

Revision:

0:9b334a45a8ff

Child:

144:ef7eb2e8f9f7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_NXP/TARGET_LPC82X/TOOLCHAIN_ARM_MICRO/sys.cpp	Thu Oct 01 15:25:22 2015 +0300
@@ -0,0 +1,31 @@
+/* mbed Microcontroller Library - stackheap
+ * Copyright (C) 2009-2011 ARM Limited. All rights reserved.
+ * 
+ * Setup a fixed single stack/heap memory model, 
+ *  between the top of the RW/ZI region and the stackpointer
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif 
+
+#include <rt_misc.h>
+#include <stdint.h>
+
+extern char Image$$RW_IRAM1$$ZI$$Limit[];
+
+extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
+    uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
+    uint32_t sp_limit = __current_sp();
+
+    zi_limit = (zi_limit + 7) & ~0x7;    // ensure zi_limit is 8-byte aligned
+
+    struct __initial_stackheap r;
+    r.heap_base = zi_limit;
+    r.heap_limit = sp_limit;
+    return r;
+}
+
+#ifdef __cplusplus
+}
+#endif