| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include <assert.h> |
| #include <stddef.h> |
| #include <inttypes.h> |
| |
| #include "mcu/stm32_hal.h" |
| |
| /** |
| * Boots the image described by the supplied image header. |
| * |
| * @param hdr The header for the image to boot. |
| */ |
| void |
| hal_system_start(void *img_start) |
| { |
| typedef void jump_fn(void); |
| |
| uint32_t base0entry; |
| uint32_t jump_addr; |
| jump_fn *fn; |
| |
| /* First word contains initial MSP value. */ |
| __set_MSP(*(uint32_t *)img_start); |
| |
| /* Second word contains address of entry point (Reset_Handler). */ |
| base0entry = *(uint32_t *)(img_start + 4); |
| jump_addr = base0entry; |
| fn = (jump_fn *)jump_addr; |
| |
| STM32_HAL_FLASH_REMAP(); |
| |
| /* Jump to image. */ |
| fn(); |
| } |
| |