shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/TOOLCHAIN_ARM_MICRO/sys.cpp@52:a51c77007319, 2013-12-02 (annotated)

Committer:
mbed_official
Date:
Mon Dec 02 11:30:05 2013 +0000
Revision:
52:a51c77007319
Child:
70:c1fbde68b492
Synchronized with git revision 49df530ae72ce97ccc773d1f2c13b38e868e6abd



Full URL: https://github.com/mbedmicro/mbed/commit/49df530ae72ce97ccc773d1f2c13b38e868e6abd/



Add STMicroelectronics NUCLEO_F103RB target

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 52:a51c77007319 1 /* mbed Microcontroller Library - stackheap
mbed_official 52:a51c77007319 2 * Copyright (C) 2009-2011 ARM Limited. All rights reserved.
mbed_official 52:a51c77007319 3 *
mbed_official 52:a51c77007319 4 * Setup a fixed single stack/heap memory model,
mbed_official 52:a51c77007319 5 * between the top of the RW/ZI region and the stackpointer
mbed_official 52:a51c77007319 6 */
mbed_official 52:a51c77007319 7
mbed_official 52:a51c77007319 8 #ifdef __cplusplus
mbed_official 52:a51c77007319 9 extern "C" {
mbed_official 52:a51c77007319 10 #endif
mbed_official 52:a51c77007319 11
mbed_official 52:a51c77007319 12 #include <rt_misc.h>
mbed_official 52:a51c77007319 13 #include <stdint.h>
mbed_official 52:a51c77007319 14
mbed_official 52:a51c77007319 15 extern char Image$$RW_IRAM1$$ZI$$Limit[];
mbed_official 52:a51c77007319 16
mbed_official 52:a51c77007319 17 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
mbed_official 52:a51c77007319 18 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
mbed_official 52:a51c77007319 19 uint32_t sp_limit = __current_sp();
mbed_official 52:a51c77007319 20
mbed_official 52:a51c77007319 21 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
mbed_official 52:a51c77007319 22
mbed_official 52:a51c77007319 23 struct __initial_stackheap r;
mbed_official 52:a51c77007319 24 r.heap_base = zi_limit;
mbed_official 52:a51c77007319 25 r.heap_limit = sp_limit;
mbed_official 52:a51c77007319 26 return r;
mbed_official 52:a51c77007319 27 }
mbed_official 52:a51c77007319 28
mbed_official 52:a51c77007319 29 #ifdef __cplusplus
mbed_official 52:a51c77007319 30 }
mbed_official 52:a51c77007319 31 #endif