PHung Tung / DISCO-F746_WAV_PLAYER

SPKT

Dependencies:   F746_GUI SD_PlayerSkeleton F746_SAI_IO

SRC_STM32F7/targets/cmsis/TARGET_STM/TARGET_STM32F7/TARGET_NUCLEO_F746ZG/TOOLCHAIN_ARM_STD/sys.cpp@0:8ede47d38d10, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:37:21 2019 +0000
Revision:
0:8ede47d38d10
SPKT

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:8ede47d38d10 1 /* mbed Microcontroller Library - stackheap
phungductung 0:8ede47d38d10 2 * Setup a fixed single stack/heap memory model,
phungductung 0:8ede47d38d10 3 * between the top of the RW/ZI region and the stackpointer
phungductung 0:8ede47d38d10 4 *******************************************************************************
phungductung 0:8ede47d38d10 5 * Copyright (c) 2014, STMicroelectronics
phungductung 0:8ede47d38d10 6 * All rights reserved.
phungductung 0:8ede47d38d10 7 *
phungductung 0:8ede47d38d10 8 * Redistribution and use in source and binary forms, with or without
phungductung 0:8ede47d38d10 9 * modification, are permitted provided that the following conditions are met:
phungductung 0:8ede47d38d10 10 *
phungductung 0:8ede47d38d10 11 * 1. Redistributions of source code must retain the above copyright notice,
phungductung 0:8ede47d38d10 12 * this list of conditions and the following disclaimer.
phungductung 0:8ede47d38d10 13 * 2. Redistributions in binary form must reproduce the above copyright notice,
phungductung 0:8ede47d38d10 14 * this list of conditions and the following disclaimer in the documentation
phungductung 0:8ede47d38d10 15 * and/or other materials provided with the distribution.
phungductung 0:8ede47d38d10 16 * 3. Neither the name of STMicroelectronics nor the names of its contributors
phungductung 0:8ede47d38d10 17 * may be used to endorse or promote products derived from this software
phungductung 0:8ede47d38d10 18 * without specific prior written permission.
phungductung 0:8ede47d38d10 19 *
phungductung 0:8ede47d38d10 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
phungductung 0:8ede47d38d10 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
phungductung 0:8ede47d38d10 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
phungductung 0:8ede47d38d10 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
phungductung 0:8ede47d38d10 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
phungductung 0:8ede47d38d10 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
phungductung 0:8ede47d38d10 26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
phungductung 0:8ede47d38d10 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
phungductung 0:8ede47d38d10 28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
phungductung 0:8ede47d38d10 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
phungductung 0:8ede47d38d10 30 *******************************************************************************
phungductung 0:8ede47d38d10 31 */
phungductung 0:8ede47d38d10 32
phungductung 0:8ede47d38d10 33 #ifdef __cplusplus
phungductung 0:8ede47d38d10 34 extern "C" {
phungductung 0:8ede47d38d10 35 #endif
phungductung 0:8ede47d38d10 36
phungductung 0:8ede47d38d10 37 #include <rt_misc.h>
phungductung 0:8ede47d38d10 38 #include <stdint.h>
phungductung 0:8ede47d38d10 39
phungductung 0:8ede47d38d10 40 extern char Image$$RW_IRAM1$$ZI$$Limit[];
phungductung 0:8ede47d38d10 41
phungductung 0:8ede47d38d10 42 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
phungductung 0:8ede47d38d10 43 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
phungductung 0:8ede47d38d10 44 uint32_t sp_limit = __current_sp();
phungductung 0:8ede47d38d10 45
phungductung 0:8ede47d38d10 46 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
phungductung 0:8ede47d38d10 47
phungductung 0:8ede47d38d10 48 struct __initial_stackheap r;
phungductung 0:8ede47d38d10 49 r.heap_base = zi_limit;
phungductung 0:8ede47d38d10 50 r.heap_limit = sp_limit;
phungductung 0:8ede47d38d10 51 return r;
phungductung 0:8ede47d38d10 52 }
phungductung 0:8ede47d38d10 53
phungductung 0:8ede47d38d10 54 #ifdef __cplusplus
phungductung 0:8ede47d38d10 55 }
phungductung 0:8ede47d38d10 56 #endif