Kev Mann / mbed-dev-OS5_10_4

RTC auf true

platform/mbed_sdk_boot.c@2:7aab896b1a3b, 2019-03-13 (annotated)

Committer:
kevman
Date:
Wed Mar 13 11:03:24 2019 +0000
Revision:
2:7aab896b1a3b
Parent:
0:38ceb79fef03 
2019-03-13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /* mbed Microcontroller Library
kevman 0:38ceb79fef03 2 * Copyright (c) 2017 ARM Limited
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Licensed under the Apache License, Version 2.0 (the "License");
kevman 0:38ceb79fef03 5 * you may not use this file except in compliance with the License.
kevman 0:38ceb79fef03 6 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 7 *
kevman 0:38ceb79fef03 8 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 9 *
kevman 0:38ceb79fef03 10 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 11 * distributed under the License is distributed on an "AS IS" BASIS,
kevman 0:38ceb79fef03 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 13 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 14 * limitations under the License.
kevman 0:38ceb79fef03 15 */
kevman 0:38ceb79fef03 16
kevman 0:38ceb79fef03 17 #include "mbed_toolchain.h"
kevman 0:38ceb79fef03 18 #include <stdlib.h>
kevman 0:38ceb79fef03 19 #include <stdint.h>
kevman 0:38ceb79fef03 20 #include "cmsis.h"
kevman 0:38ceb79fef03 21
kevman 0:38ceb79fef03 22 /* This startup is for mbed 2 baremetal. There is no config for RTOS for mbed 2,
kevman 0:38ceb79fef03 23 * therefore we protect this file with MBED_CONF_RTOS_PRESENT
kevman 0:38ceb79fef03 24 * Note: The new consolidated started for mbed OS is in rtos/mbed_boot code file.
kevman 0:38ceb79fef03 25 */
kevman 0:38ceb79fef03 26 #if !defined(MBED_CONF_RTOS_PRESENT)
kevman 0:38ceb79fef03 27
kevman 0:38ceb79fef03 28 /* mbed_main is a function that is called before main()
kevman 0:38ceb79fef03 29 * mbed_sdk_init() is also a function that is called before main(), but unlike
kevman 0:38ceb79fef03 30 * mbed_main(), it is not meant for user code, but for the SDK itself to perform
kevman 0:38ceb79fef03 31 * initializations before main() is called.
kevman 0:38ceb79fef03 32 */
kevman 0:38ceb79fef03 33 MBED_WEAK void mbed_main(void)
kevman 0:38ceb79fef03 34 {
kevman 0:38ceb79fef03 35
kevman 0:38ceb79fef03 36 }
kevman 0:38ceb79fef03 37
kevman 0:38ceb79fef03 38 /* This function can be implemented by the target to perform higher level target initialization
kevman 0:38ceb79fef03 39 */
kevman 0:38ceb79fef03 40 MBED_WEAK void mbed_sdk_init(void)
kevman 0:38ceb79fef03 41 {
kevman 0:38ceb79fef03 42
kevman 0:38ceb79fef03 43 }
kevman 0:38ceb79fef03 44
kevman 0:38ceb79fef03 45 MBED_WEAK void software_init_hook_rtos()
kevman 0:38ceb79fef03 46 {
kevman 0:38ceb79fef03 47 // Nothing by default
kevman 0:38ceb79fef03 48 }
kevman 0:38ceb79fef03 49
kevman 0:38ceb79fef03 50 void mbed_copy_nvic(void)
kevman 0:38ceb79fef03 51 {
kevman 0:38ceb79fef03 52 /* If vector address in RAM is defined, copy and switch to dynamic vectors. Exceptions for M0 which doesn't have
kevman 0:38ceb79fef03 53 VTOR register and for A9 for which CMSIS doesn't define NVIC_SetVector; in both cases target code is
kevman 0:38ceb79fef03 54 responsible for correctly handling the vectors.
kevman 0:38ceb79fef03 55 */
kevman 0:38ceb79fef03 56 #if !defined(__CORTEX_M0) && !defined(__CORTEX_A9)
kevman 0:38ceb79fef03 57 #ifdef NVIC_RAM_VECTOR_ADDRESS
kevman 0:38ceb79fef03 58 uint32_t *old_vectors = (uint32_t *)SCB->VTOR;
kevman 0:38ceb79fef03 59 uint32_t *vectors = (uint32_t *)NVIC_RAM_VECTOR_ADDRESS;
kevman 0:38ceb79fef03 60 for (int i = 0; i < NVIC_NUM_VECTORS; i++) {
kevman 0:38ceb79fef03 61 vectors[i] = old_vectors[i];
kevman 0:38ceb79fef03 62 }
kevman 0:38ceb79fef03 63 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
kevman 0:38ceb79fef03 64 #endif /* NVIC_RAM_VECTOR_ADDRESS */
kevman 0:38ceb79fef03 65 #endif /* !defined(__CORTEX_M0) && !defined(__CORTEX_A9) */
kevman 0:38ceb79fef03 66 }
kevman 0:38ceb79fef03 67
kevman 0:38ceb79fef03 68 /* Toolchain specific main code */
kevman 0:38ceb79fef03 69
kevman 0:38ceb79fef03 70 #if defined (__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 5010060))
kevman 0:38ceb79fef03 71
kevman 0:38ceb79fef03 72 int $Super$$main(void);
kevman 0:38ceb79fef03 73
kevman 0:38ceb79fef03 74 int $Sub$$main(void)
kevman 0:38ceb79fef03 75 {
kevman 0:38ceb79fef03 76 mbed_main();
kevman 0:38ceb79fef03 77 return $Super$$main();
kevman 0:38ceb79fef03 78 }
kevman 0:38ceb79fef03 79
kevman 0:38ceb79fef03 80 void _platform_post_stackheap_init(void)
kevman 0:38ceb79fef03 81 {
kevman 0:38ceb79fef03 82 mbed_copy_nvic();
kevman 0:38ceb79fef03 83 mbed_sdk_init();
kevman 0:38ceb79fef03 84 }
kevman 0:38ceb79fef03 85
kevman 0:38ceb79fef03 86 #elif defined (__GNUC__)
kevman 0:38ceb79fef03 87
kevman 0:38ceb79fef03 88 extern int __real_main(void);
kevman 0:38ceb79fef03 89
kevman 0:38ceb79fef03 90 void software_init_hook(void)
kevman 0:38ceb79fef03 91 {
kevman 0:38ceb79fef03 92 mbed_copy_nvic();
kevman 0:38ceb79fef03 93 mbed_sdk_init();
kevman 0:38ceb79fef03 94 software_init_hook_rtos();
kevman 0:38ceb79fef03 95 }
kevman 0:38ceb79fef03 96
kevman 0:38ceb79fef03 97
kevman 0:38ceb79fef03 98 int __wrap_main(void)
kevman 0:38ceb79fef03 99 {
kevman 0:38ceb79fef03 100 mbed_main();
kevman 0:38ceb79fef03 101 return __real_main();
kevman 0:38ceb79fef03 102 }
kevman 0:38ceb79fef03 103
kevman 0:38ceb79fef03 104 #elif defined (__ICCARM__)
kevman 0:38ceb79fef03 105
kevman 0:38ceb79fef03 106 int __low_level_init(void)
kevman 0:38ceb79fef03 107 {
kevman 0:38ceb79fef03 108 mbed_copy_nvic();
kevman 0:38ceb79fef03 109 return 1;
kevman 0:38ceb79fef03 110 }
kevman 0:38ceb79fef03 111
kevman 0:38ceb79fef03 112 #endif
kevman 0:38ceb79fef03 113
kevman 0:38ceb79fef03 114 #endif