Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/platform/mbed_sdk_boot.c@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1 /* mbed Microcontroller Library
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2017 ARM Limited
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 5 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 6 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 7 *
marcozecchini 0:9fca2b23d0ba 8 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 9 *
marcozecchini 0:9fca2b23d0ba 10 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 13 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 14 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 15 */
marcozecchini 0:9fca2b23d0ba 16
marcozecchini 0:9fca2b23d0ba 17 #include "mbed_toolchain.h"
marcozecchini 0:9fca2b23d0ba 18 #include <stdlib.h>
marcozecchini 0:9fca2b23d0ba 19 #include <stdint.h>
marcozecchini 0:9fca2b23d0ba 20 #include "cmsis.h"
marcozecchini 0:9fca2b23d0ba 21
marcozecchini 0:9fca2b23d0ba 22 /* This startup is for mbed 2 baremetal. There is no config for RTOS for mbed 2,
marcozecchini 0:9fca2b23d0ba 23 * therefore we protect this file with MBED_CONF_RTOS_PRESENT
marcozecchini 0:9fca2b23d0ba 24 * Note: The new consolidated started for mbed OS is in rtos/mbed_boot code file.
marcozecchini 0:9fca2b23d0ba 25 */
marcozecchini 0:9fca2b23d0ba 26 #if !defined(MBED_CONF_RTOS_PRESENT)
marcozecchini 0:9fca2b23d0ba 27
marcozecchini 0:9fca2b23d0ba 28 /* mbed_main is a function that is called before main()
marcozecchini 0:9fca2b23d0ba 29 * mbed_sdk_init() is also a function that is called before main(), but unlike
marcozecchini 0:9fca2b23d0ba 30 * mbed_main(), it is not meant for user code, but for the SDK itself to perform
marcozecchini 0:9fca2b23d0ba 31 * initializations before main() is called.
marcozecchini 0:9fca2b23d0ba 32 */
marcozecchini 0:9fca2b23d0ba 33 MBED_WEAK void mbed_main(void)
marcozecchini 0:9fca2b23d0ba 34 {
marcozecchini 0:9fca2b23d0ba 35
marcozecchini 0:9fca2b23d0ba 36 }
marcozecchini 0:9fca2b23d0ba 37
marcozecchini 0:9fca2b23d0ba 38 /* This function can be implemented by the target to perform higher level target initialization
marcozecchini 0:9fca2b23d0ba 39 */
marcozecchini 0:9fca2b23d0ba 40 MBED_WEAK void mbed_sdk_init(void)
marcozecchini 0:9fca2b23d0ba 41 {
marcozecchini 0:9fca2b23d0ba 42
marcozecchini 0:9fca2b23d0ba 43 }
marcozecchini 0:9fca2b23d0ba 44
marcozecchini 0:9fca2b23d0ba 45 MBED_WEAK void software_init_hook_rtos()
marcozecchini 0:9fca2b23d0ba 46 {
marcozecchini 0:9fca2b23d0ba 47 // Nothing by default
marcozecchini 0:9fca2b23d0ba 48 }
marcozecchini 0:9fca2b23d0ba 49
marcozecchini 0:9fca2b23d0ba 50 void mbed_copy_nvic(void)
marcozecchini 0:9fca2b23d0ba 51 {
marcozecchini 0:9fca2b23d0ba 52 /* If vector address in RAM is defined, copy and switch to dynamic vectors. Exceptions for M0 which doesn't have
marcozecchini 0:9fca2b23d0ba 53 VTOR register and for A9 for which CMSIS doesn't define NVIC_SetVector; in both cases target code is
marcozecchini 0:9fca2b23d0ba 54 responsible for correctly handling the vectors.
marcozecchini 0:9fca2b23d0ba 55 */
marcozecchini 0:9fca2b23d0ba 56 #if !defined(__CORTEX_M0) && !defined(__CORTEX_A9)
marcozecchini 0:9fca2b23d0ba 57 #ifdef NVIC_RAM_VECTOR_ADDRESS
marcozecchini 0:9fca2b23d0ba 58 uint32_t *old_vectors = (uint32_t *)SCB->VTOR;
marcozecchini 0:9fca2b23d0ba 59 uint32_t *vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
marcozecchini 0:9fca2b23d0ba 60 for (int i = 0; i < NVIC_NUM_VECTORS; i++) {
marcozecchini 0:9fca2b23d0ba 61 vectors[i] = old_vectors[i];
marcozecchini 0:9fca2b23d0ba 62 }
marcozecchini 0:9fca2b23d0ba 63 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
marcozecchini 0:9fca2b23d0ba 64 #endif /* NVIC_RAM_VECTOR_ADDRESS */
marcozecchini 0:9fca2b23d0ba 65 #endif /* !defined(__CORTEX_M0) && !defined(__CORTEX_A9) */
marcozecchini 0:9fca2b23d0ba 66 }
marcozecchini 0:9fca2b23d0ba 67
marcozecchini 0:9fca2b23d0ba 68 /* Toolchain specific main code */
marcozecchini 0:9fca2b23d0ba 69
marcozecchini 0:9fca2b23d0ba 70 #if defined (__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 5010060))
marcozecchini 0:9fca2b23d0ba 71
marcozecchini 0:9fca2b23d0ba 72 int $Super$$main(void);
marcozecchini 0:9fca2b23d0ba 73
marcozecchini 0:9fca2b23d0ba 74 int $Sub$$main(void)
marcozecchini 0:9fca2b23d0ba 75 {
marcozecchini 0:9fca2b23d0ba 76 mbed_main();
marcozecchini 0:9fca2b23d0ba 77 return $Super$$main();
marcozecchini 0:9fca2b23d0ba 78 }
marcozecchini 0:9fca2b23d0ba 79
marcozecchini 0:9fca2b23d0ba 80 void _platform_post_stackheap_init(void)
marcozecchini 0:9fca2b23d0ba 81 {
marcozecchini 0:9fca2b23d0ba 82 mbed_copy_nvic();
marcozecchini 0:9fca2b23d0ba 83 mbed_sdk_init();
marcozecchini 0:9fca2b23d0ba 84 }
marcozecchini 0:9fca2b23d0ba 85
marcozecchini 0:9fca2b23d0ba 86 #elif defined (__GNUC__)
marcozecchini 0:9fca2b23d0ba 87
marcozecchini 0:9fca2b23d0ba 88 extern int __real_main(void);
marcozecchini 0:9fca2b23d0ba 89
marcozecchini 0:9fca2b23d0ba 90 void software_init_hook(void)
marcozecchini 0:9fca2b23d0ba 91 {
marcozecchini 0:9fca2b23d0ba 92 mbed_copy_nvic();
marcozecchini 0:9fca2b23d0ba 93 mbed_sdk_init();
marcozecchini 0:9fca2b23d0ba 94 software_init_hook_rtos();
marcozecchini 0:9fca2b23d0ba 95 }
marcozecchini 0:9fca2b23d0ba 96
marcozecchini 0:9fca2b23d0ba 97
marcozecchini 0:9fca2b23d0ba 98 int __wrap_main(void)
marcozecchini 0:9fca2b23d0ba 99 {
marcozecchini 0:9fca2b23d0ba 100 mbed_main();
marcozecchini 0:9fca2b23d0ba 101 return __real_main();
marcozecchini 0:9fca2b23d0ba 102 }
marcozecchini 0:9fca2b23d0ba 103
marcozecchini 0:9fca2b23d0ba 104 #elif defined (__ICCARM__)
marcozecchini 0:9fca2b23d0ba 105
marcozecchini 0:9fca2b23d0ba 106 int __low_level_init(void)
marcozecchini 0:9fca2b23d0ba 107 {
marcozecchini 0:9fca2b23d0ba 108 mbed_copy_nvic();
marcozecchini 0:9fca2b23d0ba 109 return 1;
marcozecchini 0:9fca2b23d0ba 110 }
marcozecchini 0:9fca2b23d0ba 111
marcozecchini 0:9fca2b23d0ba 112 #endif
marcozecchini 0:9fca2b23d0ba 113
marcozecchini 0:9fca2b23d0ba 114 #endif