fix LPC812 PWM
Fork of mbed-dev by
targets/cmsis/TARGET_NXP/TARGET_LPC11XX_11CXX/TOOLCHAIN_ARM_MICRO/sys.cpp@0:9b334a45a8ff, 2015-10-01 (annotated)
- Committer:
- bogdanm
- Date:
- Thu Oct 01 15:25:22 2015 +0300
- Revision:
- 0:9b334a45a8ff
Initial commit on mbed-dev
Replaces mbed-src (now inactive)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 0:9b334a45a8ff | 1 | /* mbed Microcontroller Library - stackheap |
bogdanm | 0:9b334a45a8ff | 2 | * Copyright (C) 2009-2011 ARM Limited. All rights reserved. |
bogdanm | 0:9b334a45a8ff | 3 | * |
bogdanm | 0:9b334a45a8ff | 4 | * Setup a fixed single stack/heap memory model, |
bogdanm | 0:9b334a45a8ff | 5 | * between the top of the RW/ZI region and the stackpointer |
bogdanm | 0:9b334a45a8ff | 6 | */ |
bogdanm | 0:9b334a45a8ff | 7 | |
bogdanm | 0:9b334a45a8ff | 8 | #ifdef __cplusplus |
bogdanm | 0:9b334a45a8ff | 9 | extern "C" { |
bogdanm | 0:9b334a45a8ff | 10 | #endif |
bogdanm | 0:9b334a45a8ff | 11 | |
bogdanm | 0:9b334a45a8ff | 12 | #include <rt_misc.h> |
bogdanm | 0:9b334a45a8ff | 13 | #include <stdint.h> |
bogdanm | 0:9b334a45a8ff | 14 | |
bogdanm | 0:9b334a45a8ff | 15 | extern char Image$$RW_IRAM1$$ZI$$Limit[]; |
bogdanm | 0:9b334a45a8ff | 16 | |
bogdanm | 0:9b334a45a8ff | 17 | extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) { |
bogdanm | 0:9b334a45a8ff | 18 | uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit; |
bogdanm | 0:9b334a45a8ff | 19 | uint32_t sp_limit = __current_sp(); |
bogdanm | 0:9b334a45a8ff | 20 | |
bogdanm | 0:9b334a45a8ff | 21 | zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned |
bogdanm | 0:9b334a45a8ff | 22 | |
bogdanm | 0:9b334a45a8ff | 23 | struct __initial_stackheap r; |
bogdanm | 0:9b334a45a8ff | 24 | r.heap_base = zi_limit; |
bogdanm | 0:9b334a45a8ff | 25 | r.heap_limit = sp_limit; |
bogdanm | 0:9b334a45a8ff | 26 | return r; |
bogdanm | 0:9b334a45a8ff | 27 | } |
bogdanm | 0:9b334a45a8ff | 28 | |
bogdanm | 0:9b334a45a8ff | 29 | #ifdef __cplusplus |
bogdanm | 0:9b334a45a8ff | 30 | } |
bogdanm | 0:9b334a45a8ff | 31 | #endif |