Stuart Northfield / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_STM32F407VG/TOOLCHAIN_ARM_MICRO/sys.cpp@384:ef87175507f1, 2014-11-04 (annotated)

Committer:
mbed_official
Date:
Tue Nov 04 09:30:07 2014 +0000
Revision:
384:ef87175507f1
Parent:
targets/cmsis/TARGET_STM/TARGET_STM32F407VG/TOOLCHAIN_ARM_MICRO/sys.cpp@351:1b8acea4af63 
Synchronized with git revision 8f7778d898867246da01cfccb39396c2e419c1f6



Full URL: https://github.com/mbedmicro/mbed/commit/8f7778d898867246da01cfccb39396c2e419c1f6/



Targets: Nucleo F4xx - Reorder f4xx structure

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 351:1b8acea4af63 1 /* mbed Microcontroller Library - stackheap
mbed_official 351:1b8acea4af63 2 * Copyright (C) 2009-2011 ARM Limited. All rights reserved.
mbed_official 351:1b8acea4af63 3 *
mbed_official 351:1b8acea4af63 4 * Setup a fixed single stack/heap memory model,
mbed_official 351:1b8acea4af63 5 * between the top of the RW/ZI region and the stackpointer
mbed_official 351:1b8acea4af63 6 */
mbed_official 351:1b8acea4af63 7
mbed_official 351:1b8acea4af63 8 #ifdef __cplusplus
mbed_official 351:1b8acea4af63 9 extern "C" {
mbed_official 351:1b8acea4af63 10 #endif
mbed_official 351:1b8acea4af63 11
mbed_official 351:1b8acea4af63 12 #include <rt_misc.h>
mbed_official 351:1b8acea4af63 13 #include <stdint.h>
mbed_official 351:1b8acea4af63 14
mbed_official 351:1b8acea4af63 15 extern char Image$$RW_IRAM1$$ZI$$Limit[];
mbed_official 351:1b8acea4af63 16
mbed_official 351:1b8acea4af63 17 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
mbed_official 351:1b8acea4af63 18 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
mbed_official 351:1b8acea4af63 19 uint32_t sp_limit = __current_sp();
mbed_official 351:1b8acea4af63 20
mbed_official 351:1b8acea4af63 21 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
mbed_official 351:1b8acea4af63 22
mbed_official 351:1b8acea4af63 23 struct __initial_stackheap r;
mbed_official 351:1b8acea4af63 24 r.heap_base = zi_limit;
mbed_official 351:1b8acea4af63 25 r.heap_limit = sp_limit;
mbed_official 351:1b8acea4af63 26 return r;
mbed_official 351:1b8acea4af63 27 }
mbed_official 351:1b8acea4af63 28
mbed_official 351:1b8acea4af63 29 #ifdef __cplusplus
mbed_official 351:1b8acea4af63 30 }
mbed_official 351:1b8acea4af63 31 #endif