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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Last commit 20 Feb 2019 by 
mbed official
Revision 71:ca88dd32f209, committed 2014-01-09
- Comitter:
- mbed_official
- Date:
- Thu Jan 09 09:00:05 2014 +0000
- Parent:
- 70:c1fbde68b492
- Child:
- 72:248c61396e08
- Commit message:
- Synchronized with git revision fa9f5da46934cff09860c5112938b8bc976a340d
Full URL: https://github.com/mbedmicro/mbed/commit/fa9f5da46934cff09860c5112938b8bc976a340d/
[LPC4088] RAM size fix for ARM_GCC. Added possibility to reserve stack space
Changed in this revision
--- a/targets/cmsis/TARGET_NXP/TARGET_LPC408X/TOOLCHAIN_ARM_STD/sys.cpp Tue Jan 07 11:00:05 2014 +0000
+++ b/targets/cmsis/TARGET_NXP/TARGET_LPC408X/TOOLCHAIN_ARM_STD/sys.cpp Thu Jan 09 09:00:05 2014 +0000
@@ -11,6 +11,7 @@
#include <rt_misc.h>
#include <stdint.h>
+#include "sys_helper.h"
extern char Image$$RW_IRAM1$$ZI$$Limit[];
@@ -22,7 +23,7 @@
struct __initial_stackheap r;
r.heap_base = zi_limit;
- r.heap_limit = sp_limit;
+ r.heap_limit = sp_limit - __reserved_stack_size();
return r;
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_NXP/TARGET_LPC408X/TOOLCHAIN_ARM_STD/sys_helper.cpp Thu Jan 09 09:00:05 2014 +0000
@@ -0,0 +1,19 @@
+/* mbed Microcontroller Library - stackheap
+ * Copyright (C) 2009-2011 ARM Limited. All rights reserved.
+ *
+ */
+
+#include "sys_helper.h"
+
+/* This function specifies the amount of memory of the internal RAM to
+ reserve for the stack. The default implementation will reserve 0 bytes
+ which gives the normal behaviour where the stack and heap share all the
+ internal RAM.
+
+ You can override this function in your code to reserve a number of bytes
+ for the stack.
+*/
+extern "C" __attribute__((weak)) uint32_t __reserved_stack_size();
+extern "C" __attribute__((weak)) uint32_t __reserved_stack_size() {
+ return 0; // return 0 to indicate that nothing is reserved
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_NXP/TARGET_LPC408X/TOOLCHAIN_ARM_STD/sys_helper.h Thu Jan 09 09:00:05 2014 +0000
@@ -0,0 +1,16 @@
+#ifndef SYS_HELPER_H
+#define SYS_HELPER_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+uint32_t __reserved_stack_size();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- a/targets/cmsis/TARGET_NXP/TARGET_LPC408X/TOOLCHAIN_GCC_ARM/LPC4088.ld Tue Jan 07 11:00:05 2014 +0000
+++ b/targets/cmsis/TARGET_NXP/TARGET_LPC408X/TOOLCHAIN_GCC_ARM/LPC4088.ld Thu Jan 09 09:00:05 2014 +0000
@@ -4,7 +4,7 @@
MEMORY
{
FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 512K
- RAM (rwx) : ORIGIN = 0x100000E8, LENGTH = (32K - 0xE8)
+ RAM (rwx) : ORIGIN = 0x100000E8, LENGTH = (64K - 0xE8)
USB_RAM(rwx) : ORIGIN = 0x20000000, LENGTH = 16K
ETH_RAM(rwx) : ORIGIN = 0x20004000, LENGTH = 16K
