en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_NUCLEO_L073RZ/TOOLCHAIN_ARM_STD/sys.cpp@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
0:9b334a45a8ff 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library - stackheap
bogdanm 0:9b334a45a8ff 2 * Setup a fixed single stack/heap memory model,
bogdanm 0:9b334a45a8ff 3 * between the top of the RW/ZI region and the stackpointer
bogdanm 0:9b334a45a8ff 4 *******************************************************************************
bogdanm 0:9b334a45a8ff 5 * Copyright (c) 2014, STMicroelectronics
bogdanm 0:9b334a45a8ff 6 * All rights reserved.
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * Redistribution and use in source and binary forms, with or without
bogdanm 0:9b334a45a8ff 9 * modification, are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 10 *
bogdanm 0:9b334a45a8ff 11 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 12 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 13 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 14 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 15 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 16 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 17 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 18 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 19 *
bogdanm 0:9b334a45a8ff 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 23 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 28 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 30 *******************************************************************************
bogdanm 0:9b334a45a8ff 31 */
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 34 extern "C" {
bogdanm 0:9b334a45a8ff 35 #endif
bogdanm 0:9b334a45a8ff 36
bogdanm 0:9b334a45a8ff 37 #include <rt_misc.h>
bogdanm 0:9b334a45a8ff 38 #include <stdint.h>
bogdanm 0:9b334a45a8ff 39
bogdanm 0:9b334a45a8ff 40 extern char Image$$RW_IRAM1$$ZI$$Limit[];
bogdanm 0:9b334a45a8ff 41
bogdanm 0:9b334a45a8ff 42 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
bogdanm 0:9b334a45a8ff 43 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
bogdanm 0:9b334a45a8ff 44 uint32_t sp_limit = __current_sp();
bogdanm 0:9b334a45a8ff 45
bogdanm 0:9b334a45a8ff 46 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
bogdanm 0:9b334a45a8ff 47
bogdanm 0:9b334a45a8ff 48 struct __initial_stackheap r;
bogdanm 0:9b334a45a8ff 49 r.heap_base = zi_limit;
bogdanm 0:9b334a45a8ff 50 r.heap_limit = sp_limit;
bogdanm 0:9b334a45a8ff 51 return r;
bogdanm 0:9b334a45a8ff 52 }
bogdanm 0:9b334a45a8ff 53
bogdanm 0:9b334a45a8ff 54 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 55 }
bogdanm 0:9b334a45a8ff 56 #endif