anyThing Connected Team / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   BREAK_SENSOR_LED

Fork of mbed-dev by mbed official

platform/mbed_sdk_boot.c@180:d79f997829d6, 2017-12-18 (annotated)

Committer:
Anythingconnected
Date:
Mon Dec 18 10:14:27 2017 +0000
Revision:
180:d79f997829d6
Parent:
174:b96e65c34a4d 
Getting byte by byte read to work

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 167:e84263d55307 1 /* mbed Microcontroller Library
AnnaBridge 167:e84263d55307 2 * Copyright (c) 2017 ARM Limited
AnnaBridge 167:e84263d55307 3 *
AnnaBridge 167:e84263d55307 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 167:e84263d55307 5 * you may not use this file except in compliance with the License.
AnnaBridge 167:e84263d55307 6 * You may obtain a copy of the License at
AnnaBridge 167:e84263d55307 7 *
AnnaBridge 167:e84263d55307 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 167:e84263d55307 9 *
AnnaBridge 167:e84263d55307 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 167:e84263d55307 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 167:e84263d55307 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 167:e84263d55307 13 * See the License for the specific language governing permissions and
AnnaBridge 167:e84263d55307 14 * limitations under the License.
AnnaBridge 167:e84263d55307 15 */
AnnaBridge 167:e84263d55307 16
AnnaBridge 167:e84263d55307 17 #include "mbed_toolchain.h"
AnnaBridge 167:e84263d55307 18 #include <stdlib.h>
AnnaBridge 167:e84263d55307 19 #include <stdint.h>
AnnaBridge 167:e84263d55307 20 #include "cmsis.h"
AnnaBridge 167:e84263d55307 21
AnnaBridge 167:e84263d55307 22 /* This startup is for mbed 2 baremetal. There is no config for RTOS for mbed 2,
AnnaBridge 167:e84263d55307 23 * therefore we protect this file with MBED_CONF_RTOS_PRESENT
AnnaBridge 167:e84263d55307 24 * Note: The new consolidated started for mbed OS is in rtos/mbed_boot code file.
AnnaBridge 167:e84263d55307 25 */
AnnaBridge 167:e84263d55307 26 #if !defined(MBED_CONF_RTOS_PRESENT)
AnnaBridge 167:e84263d55307 27
AnnaBridge 167:e84263d55307 28 /* mbed_main is a function that is called before main()
AnnaBridge 167:e84263d55307 29 * mbed_sdk_init() is also a function that is called before main(), but unlike
AnnaBridge 167:e84263d55307 30 * mbed_main(), it is not meant for user code, but for the SDK itself to perform
AnnaBridge 167:e84263d55307 31 * initializations before main() is called.
AnnaBridge 167:e84263d55307 32 */
AnnaBridge 167:e84263d55307 33 MBED_WEAK void mbed_main(void)
AnnaBridge 167:e84263d55307 34 {
AnnaBridge 167:e84263d55307 35
AnnaBridge 167:e84263d55307 36 }
AnnaBridge 167:e84263d55307 37
AnnaBridge 167:e84263d55307 38 /* This function can be implemented by the target to perform higher level target initialization
AnnaBridge 167:e84263d55307 39 */
AnnaBridge 167:e84263d55307 40 MBED_WEAK void mbed_sdk_init(void)
AnnaBridge 167:e84263d55307 41 {
AnnaBridge 167:e84263d55307 42
AnnaBridge 167:e84263d55307 43 }
AnnaBridge 167:e84263d55307 44
AnnaBridge 167:e84263d55307 45 MBED_WEAK void software_init_hook_rtos()
AnnaBridge 167:e84263d55307 46 {
AnnaBridge 167:e84263d55307 47 // Nothing by default
AnnaBridge 167:e84263d55307 48 }
AnnaBridge 167:e84263d55307 49
AnnaBridge 167:e84263d55307 50 void mbed_copy_nvic(void)
AnnaBridge 167:e84263d55307 51 {
AnnaBridge 167:e84263d55307 52 /* If vector address in RAM is defined, copy and switch to dynamic vectors. Exceptions for M0 which doesn't have
AnnaBridge 167:e84263d55307 53 VTOR register and for A9 for which CMSIS doesn't define NVIC_SetVector; in both cases target code is
AnnaBridge 167:e84263d55307 54 responsible for correctly handling the vectors.
AnnaBridge 167:e84263d55307 55 */
AnnaBridge 167:e84263d55307 56 #if !defined(__CORTEX_M0) && !defined(__CORTEX_A9)
AnnaBridge 167:e84263d55307 57 #ifdef NVIC_RAM_VECTOR_ADDRESS
AnnaBridge 167:e84263d55307 58 uint32_t *old_vectors = (uint32_t *)SCB->VTOR;
AnnaBridge 167:e84263d55307 59 uint32_t *vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
AnnaBridge 167:e84263d55307 60 for (int i = 0; i < NVIC_NUM_VECTORS; i++) {
AnnaBridge 167:e84263d55307 61 vectors[i] = old_vectors[i];
AnnaBridge 167:e84263d55307 62 }
AnnaBridge 167:e84263d55307 63 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
AnnaBridge 167:e84263d55307 64 #endif /* NVIC_RAM_VECTOR_ADDRESS */
AnnaBridge 167:e84263d55307 65 #endif /* !defined(__CORTEX_M0) && !defined(__CORTEX_A9) */
AnnaBridge 167:e84263d55307 66 }
AnnaBridge 167:e84263d55307 67
AnnaBridge 167:e84263d55307 68 /* Toolchain specific main code */
AnnaBridge 167:e84263d55307 69
AnnaBridge 174:b96e65c34a4d 70 #if defined (__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 5010060))
AnnaBridge 167:e84263d55307 71
AnnaBridge 167:e84263d55307 72 int $Super$$main(void);
AnnaBridge 167:e84263d55307 73
AnnaBridge 167:e84263d55307 74 int $Sub$$main(void)
AnnaBridge 167:e84263d55307 75 {
AnnaBridge 167:e84263d55307 76 mbed_main();
AnnaBridge 167:e84263d55307 77 return $Super$$main();
AnnaBridge 167:e84263d55307 78 }
AnnaBridge 167:e84263d55307 79
AnnaBridge 167:e84263d55307 80 void _platform_post_stackheap_init(void)
AnnaBridge 167:e84263d55307 81 {
AnnaBridge 167:e84263d55307 82 mbed_copy_nvic();
AnnaBridge 167:e84263d55307 83 mbed_sdk_init();
AnnaBridge 167:e84263d55307 84 }
AnnaBridge 167:e84263d55307 85
AnnaBridge 167:e84263d55307 86 #elif defined (__GNUC__)
AnnaBridge 167:e84263d55307 87
AnnaBridge 167:e84263d55307 88 extern int __real_main(void);
AnnaBridge 167:e84263d55307 89
AnnaBridge 167:e84263d55307 90 void software_init_hook(void)
AnnaBridge 167:e84263d55307 91 {
AnnaBridge 167:e84263d55307 92 mbed_copy_nvic();
AnnaBridge 167:e84263d55307 93 mbed_sdk_init();
AnnaBridge 167:e84263d55307 94 software_init_hook_rtos();
AnnaBridge 167:e84263d55307 95 }
AnnaBridge 167:e84263d55307 96
AnnaBridge 167:e84263d55307 97
AnnaBridge 167:e84263d55307 98 int __wrap_main(void)
AnnaBridge 167:e84263d55307 99 {
AnnaBridge 167:e84263d55307 100 mbed_main();
AnnaBridge 167:e84263d55307 101 return __real_main();
AnnaBridge 167:e84263d55307 102 }
AnnaBridge 167:e84263d55307 103
AnnaBridge 167:e84263d55307 104 #elif defined (__ICCARM__)
AnnaBridge 167:e84263d55307 105
AnnaBridge 167:e84263d55307 106 int __low_level_init(void)
AnnaBridge 167:e84263d55307 107 {
AnnaBridge 167:e84263d55307 108 mbed_copy_nvic();
AnnaBridge 167:e84263d55307 109 return 1;
AnnaBridge 167:e84263d55307 110 }
AnnaBridge 167:e84263d55307 111
AnnaBridge 167:e84263d55307 112 #endif
AnnaBridge 167:e84263d55307 113
AnnaBridge 167:e84263d55307 114 #endif