diff options
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_K20XX/TARGET_K20D50M/TOOLCHAIN_ARM_STD/sys.cpp')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_K20XX/TARGET_K20D50M/TOOLCHAIN_ARM_STD/sys.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_K20XX/TARGET_K20D50M/TOOLCHAIN_ARM_STD/sys.cpp b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_K20XX/TARGET_K20D50M/TOOLCHAIN_ARM_STD/sys.cpp new file mode 100644 index 0000000000..3296df1928 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_Freescale/TARGET_K20XX/TARGET_K20D50M/TOOLCHAIN_ARM_STD/sys.cpp @@ -0,0 +1,31 @@ +/* mbed Microcontroller Library - stackheap + * Copyright (C) 2009-2015 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 |