149 lines
5.4 KiB
C
149 lines
5.4 KiB
C
/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-11-06 SummerGift first version
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*/
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#include "board.h"
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/**
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* @brief System Clock Configuration ，因为boot 开启了QSPI的时钟，故这里也要开启。要和boot 保持一致，如何要和
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* @retval None
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*/
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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/** Supply configuration update enable
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*/
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HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
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/** Configure the main internal regulator output voltage
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*/
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
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while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
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/** Initializes the RCC Oscillators according to the specified parameters
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* in the RCC_OscInitTypeDef structure.
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 5;
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RCC_OscInitStruct.PLL.PLLN = 48;
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RCC_OscInitStruct.PLL.PLLP = 2;
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RCC_OscInitStruct.PLL.PLLQ = 5;
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RCC_OscInitStruct.PLL.PLLR = 2;
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RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
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RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
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RCC_OscInitStruct.PLL.PLLFRACN = 0;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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Error_Handler();
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}
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/** Initializes the CPU, AHB and APB buses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
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|RCC_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV4;
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RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
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{
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Error_Handler();
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}
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}
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int MPU_Config(void)
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{
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MPU_Region_InitTypeDef MPU_InitStruct = {0};
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HAL_MPU_Disable();
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// Region 0: 默认 4GB NO_ACCESS（保留你原来的）
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MPU_InitStruct.Enable = MPU_REGION_ENABLE;
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MPU_InitStruct.Number = MPU_REGION_NUMBER0;
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MPU_InitStruct.BaseAddress = 0x00000000;
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MPU_InitStruct.Size = MPU_REGION_SIZE_4GB;
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MPU_InitStruct.SubRegionDisable = 0x87;
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MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
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MPU_InitStruct.AccessPermission = MPU_REGION_NO_ACCESS;
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MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE; // 默认都禁执行
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MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
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MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
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MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
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HAL_MPU_ConfigRegion(&MPU_InitStruct);
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// Region 1: QSPI XIP 区域 0x9000_0000 (W25Q64 = 8MB)
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MPU_InitStruct.Enable = MPU_REGION_ENABLE;
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MPU_InitStruct.Number = MPU_REGION_NUMBER1; // 编号更大 => 优先级更高
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MPU_InitStruct.BaseAddress = 0x90000000;
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MPU_InitStruct.Size = MPU_REGION_SIZE_8MB;
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MPU_InitStruct.SubRegionDisable = 0x00;
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MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
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MPU_InitStruct.AccessPermission = MPU_REGION_PRIV_RO_URO; // 只读;
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// 关键：XIP 必须允许取指（不要 XN）
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MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE; // 可执行
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// QSPI XIP 区域（0x9000_0000~）的 MPU 属性：按“Normal memory”处理以提升性能
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MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE; // 不共享：对只读代码区一般不需要共享语义
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// （注意：STM32 没硬件缓存一致性，DMA 一致性仍靠 clean/invalidate 或 non-cacheable buffer）
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MPU_InitStruct.IsCacheable = MPU_ACCESS_CACHEABLE; // 可缓存：允许进入 D-Cache（读数据更快，XIP 性能更好）
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// 升级写完新固件后跳转前建议 Invalidate I/D Cache，避免跑到旧缓存
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MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE; // 可缓冲：允许写缓冲/合并，提高总线访问效率（配合 cacheable 的常用组合）
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// 不适用于外设寄存器区，但对 QSPI 映射的“内存型”区域一般没问题
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HAL_MPU_ConfigRegion(&MPU_InitStruct);
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HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
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return 0;
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}
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#define RT_APP_PART_ADDR STM32_FLASH_START_ADDRESS
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static int ota_app_vtor_reconfig(void)
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{
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SCB->VTOR = RT_APP_PART_ADDR;
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return 0;
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}
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INIT_BOARD_EXPORT(ota_app_vtor_reconfig);
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INIT_BOARD_EXPORT(MPU_Config);
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// rt thread 的
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// void __libc_init_array(void)
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// {
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// /* we not use __libc init_aray to initialize C++ objects */
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// /* __libc_init_array is ARM code, not Thumb; it will cause a hardfault. */
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// }
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// 没有定义，不能初始化C++ 的static 变量，故需要添加这个函数
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typedef int (*init_func_t)(void);
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extern init_func_t __preinit_array_start[];
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extern init_func_t __preinit_array_end[];
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extern init_func_t __init_array_start[];
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extern init_func_t __init_array_end[];
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int rt_cpp_init(void)
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{
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for (init_func_t *p = __preinit_array_start; p < __preinit_array_end; ++p) (*p)();
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for (init_func_t *p = __init_array_start; p < __init_array_end; ++p) (*p)();
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}
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INIT_PLATFORM_EXPORT(rt_cpp_init); |